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User manual - Oasis Heat Pumps

1. BIE J aN C O y Fig 8 e Model MCHRTF10C0 Sat 90 3 74 5 __ 12 5 64 fol 22 2 32 Ps fe i 3 5 pA Te g Last M FE el Lil E a as his Fig 8 f 68 UC SE 030220426 rel 2 1 09 06 2010 Description Code uCSE single circuit 2 compressors panel mounting MCH2001030 uCSE single circuit 2 compressors panel mounting 20 pcs multiple package MCH2001031 uC SE expansion board for 2nd circuit maximum 4 compressors MCH2000020 uC SE expansion board for 2nd circuit maximum 4 compressors 10 pcs multiple MCH2000021 package RS485 optional board for uC SE panel version MCH2004850 Programming key for 1C SE PSOPZKEYOO ON OFF fan card only screw terminals CONVONOFFO PWM 0 to 10 V fan card only screw terminals CONVO 10A0 Temperature probes for regulation or condensation control NTC WPOO depending on the length 015 1 5 m 030 3 m 060 6 m Pressure probes for condensing pressure control SPK R depending on the pressure 13 150 PSI 23 75 PSI 33 500 PSI Connectors kit for code MCH2000001 multiple package 20 pcs MCH2CON001 Connectors kit for code MCH2000001 multiple package 10 pcs MCH2CON021 Minifit connectors kit 1 meter length for code MCH2 MCHSMLCABO Min
2. YJ PSOPZKEY CONVONOFF programming PWM digital key NANNAN converter 0006 lt n oY CONVO 10A0 O PW Modbus RTU L PWM analogic ee CAREL Supervisory AanA converter Bo MCH200485 NTC temperature RS485 robes MCH2 T P serial card EL Re CHRTF A0 EOL fan speed regulator SPKT Oto 5V MCH2 TSV PW CAREL pres transducer adapter an Supervisory Fig 2 a 2 2 Network layout i i 8 PWM TT gt renee uC FR ES ES tLAN EV ariver w F wn Fig 2 b Fig 2 c uOSE 030220426 rel 2 1 09 06 2010 9 I n O Zz Ww 3 APPLICATIONS Key condernser fan overload fan condenser probe supply probe electrical heater evaporator supply fan overload supply fan 1 2 3 4 5 6 7 8 9 compressor 1 high pressure compressor overload low pressure ambient probe compressor 2 Key condernser fan overload 1 and 2 fan condenser probe supply probe electrical heater 1 and 2 evaporator 1 e 2 supply fan overload supply fan J OV O B Co IN compressor 1 high pressure 1 and 2 compressor ov
3. COIN JOVI A Co No 22 MCSE 030220426 rel 2 1 09 06 2010 3 10 2 Two circuits Key flow switch water cond temperature probe condenser compressor 1 high pressure compressor overload lw pressure compressor 2 compressor 3 compressor 4 water pump ENGLISH HIS PO JOIN Oo iU IN e Fig 3 6 3 11 Reverse cycle water cooled condensing unit 3 11 1 Single circuit PS m lt condenser probe condenser antifreeze heater compressor 1 high pressure compressor overload low pressure compressor 2 reversing valve WI INO B wiry uOSE 030220426 rel 2 1 09 06 2010 23 ae n O Zz Ww 1 2 3 4 5 6 7 8 9 Key condenser probe condenser 1 and 2 antifreeze heater 1 and 2 reversing valve compressor 1 high pressure 1 and 2 compressor overload 1 and 2 low pressure 1 and 2 compressor 3 compressor 2 compressor 4 water pump Key condenser fan overload fan condernser probe 1 and 2 supply probe electrical heater 1 e 2 evaporator 1 e 2 supply fan overload supply fan O C IN JOV B Ww IN compressor 1 high pressure 1 and 2 compressor overload 1 and 2 low pressure 1 and 2 ambient probe compressor 2 reversing valve
4. 3 6 2 Two circuits a un l water condensing temperature probe 1and2 2a condensator 1 and 2 Lu flow switch outlet evaporator probe outlet evaporator probe 1 and 2 evaporator 1 and 2 antifreeze heater 1 and 2 water pump compressor 1 high pressure 1 and 2 compressor overload 1 and 2 low pressure 1 and 2 inlet evaporator probe compressor 2 compressor 3 revesing valve 1 and 2 compressor 4 Fig 3 f b 3 6 3 Two circuits 1 evaporator Key condenser probe 1 and 2 condenser 1 and 2 flow switch outlet evaporator probe evaporator antifreeze heater 1 and 2 compressor 1 high pressure 1 and 2 compressor overload 1 and 2 10 _ low pressure 1 and 2 11 __ inlet evaporator probe 12__ water pump 13 compressor 2 14 __ reversing valve 1 and 2 15 compressor 3 16 _ compressor 4 O0 Un Co IN Fig 3 f c 18 UC SE 030220426 rel 2 1 09 06 2010 3 7 WATER WATER heat pump with reversal on water circuit 3 7 1 Single circuit 3 7 2 Two circuits HO2 1 and H21 4 uOSE 030220426 rel 2 1 09 06 2010 Key external internal ENGLISH reversing valve flow switch outlet evaporator probe antifreeze heater evaporator condenser OI J OV On B Ww IN condenser probe comp
5. Vag X 7 4 Fan speed control board code MCHRTF The phase cutting boards code MCHRTF are used to control the speed of the condenser fans IMPORTANT The power supply to the uC SE G and GO and the MCHRTF board must be in 64 phase If for example the power supply to the uC SE system is three phase make sure that the primary of the transformer supplying the uC SE board is connected to the same phase that is connected to terminals N and L on the speed control board therefore do not use 380 Vac 24 Vac transformers to supply the controller if the phase and neutral are used to directly power the speed control boards Connect the earth terminal where envisaged to the earth in the electrical panel Key 1 to uchiller 2 earth 3 to motor 7 5 Fan ON OFF control board code CONVONOFFO The relay boards code CONVONOFFO are used for the ON OFF management of the condenser fans The control relay has a switchable power rating of 10 A at 250 Vac in AC1 1 3 HP inductive 7 6 PWM to 0 to 10Vdc or 4 to 20 mA conversion board for fans code CONVO 10A0 The CONVO 10A0 boards convert the PWM signal at terminal Y on the uC SE to a standard 0 to 10 Vdc or 4 to 20 mA signal The FCS series three phase controllers can be connected to the HC SE without using this module 7 7 Minimum and maximum fan speed calculation This procedure should only be performed when the fan speed
6. 263 Integer H06 Cooling Heating digital input 0 absent present Flag 14 R W Digital H07 ON OFF digital input 0 absent present Flag 15 R W Digital H08 UCSE network configuration 0 UC SE only UC SE valve 2 UCSE exp 3 uC2SE exp valvel valve2 4 uC2SE exp valvel Flag 57 R W 264 Integer H09 Lock keypad 0 disabled enabled Flag Digital H10 Serial address 0 future use as terminal 200 265 Integer H11 Output modes see pag 46 Int 266 Integer H12 Capacity control and reversing valve logic 0 Both normally closed 1 Both normally open 2 Inversion valve normally open and capacity control valve normally closed 3 Inversion valve normally closed and capacity control valve normally open Flag 267 Integer H13 Activate pump down Digital H14 Minimum pump down pressure 500 Dbar 0 1 20 Analog H15 Maximum pump down time 180 30 Integer H16 Activate autotuning ojojojo Flag Digital H17 Minimum DTE value allowed 0 0 1760 C F 0 1 Analog H18 Maximum DTE value allowed 0 0 1760 C F 800 Analog H19 Maximum DTC value allowed 1760 0 1 800 Analog H21 Second pump function 0 Disabled 1 Backup and weekly rotation 2 Backup and daily rotation 3 Condens
7. 030220426 rel 2 1 09 06 2010 41 ENGLISH ae n O zZ W Key 1 speed 2 condensing temperature pressure 3 hysteresis 42 Max outside temperature threshold for sliding defrost d18 This establishes the maximum value of the outside temperature below which sliding defrost is activated Maximum temperature pressure differential deviation for defrost d19 This value is expressed in C if the compensation is controlled by temperature or in bar if controlled by pressure The value set is subtracted from d03 Outside temperature differential for compensation saturation d20 The value set is subtracted for d18 Fan settings parameters F Fan output F01 Enables the operation of the fans F01 0 fans absent FO1 1 fans present The PWM output 1 or 2 depending on the value of parameter H02 requires the presence of the optional fan control cards ON OFF for the CONVONOFF module or speed variation for MCHRTF or FCS three phase Fan operating mode F02 This establishes the operating logic for the fans F02 0 always ON at maximum speed independently from the compressors The fans are only switched OFF when the unit is in standby F02 1 ON at maximum speed when at least one compressor in the corresponding circuit is ON parallel operation in each circuit F02 2 ON when the corresponding compressor is ON with ON OFF control based on the temperature pressure settings for the minimu
8. 09 06 2010 51 lt n O 2 ae Lu rotL DR haut Lee i l deactivation time D d i i v 1 1 I I i i i i 1 1 1 i l 1 l 1 l 1 1 1 1 1 i l l 1i l l I 1 L 1 dt cha rad sde ue ho 1 temperature i At Ad rot rt2 compressor compressor deactivation time stop Fig 5 b f l l 1 PO bedou a yh REE LEE EENE activation time I I 7 5 vo i 1 l l l i l l 1 l f l 1 l l 1 r09 p Fee ee cha 1 i 1 1 l l h temperature ee r03 r07 4 r03 r07 r03 Fig 5 b g 4 HO beeen sce Rs ere Less l deactivation time i i v 1 E 1 1 1 1 l l rit t gt L i i 1 temperature 1 1 i r03 r03 r12 comp deactivation time Fig 5 b h In heating With autotuning active and inlet control this represents the delay from switching the compressor off to reach the outlet set point before the next deactivation Compressor deactivation differential if r06 4 r12 This represents the temperature differential for the deactivation of the compressors according to the procedure described in Deactivation time Deactivation time cooling Fig 5 b f In the same way as for the activation time the deactivation time also varies between a maximum value set for the parameter r10 and corresponding to the set point temperature and a minimum set for the parameter r11 corresponding to the end of the differential for the deactivation of the compressors s
9. UOM variat def visibility supervis variable Modbus variable type H01 Unit model 0 air_air unit 1 air_air heat pump 2 air_water chiller 3 air_water heat pump 4 water_water chiller 5 water_water heat pump with reversal on gas circuit 6 water_water heat pump with reversal on water circuit 7 condensing unit 8 reverse cycle condensing unit 9 water cooled condensing unit 0 reverse cycle water cooled condensing unit 1 cooling only air air unit with electric heaters F Flag 54 R W 261 Integer ENGLISH H02 Number of condensers 0 1 circuit 2 circuits Flag 12 R W Digital H03 Number of evaporators 0 1 evaporator 2 evaporators Flag 13 R W Digital H04 Number of compressors per circuit 0 1 comp ON 1 circuit single circuit 2 comp in tandem ON 1 circuit single circuit 2 1 comp per circuit 2 circuits two circuits 3 2 comp in Tandem 2 circuits two circuits 4 1 compressor and 1 Capacity step in one circuit 5 1 compressor and 1 capacity Step per circuit Flag 55 R W 262 Integer H05 Pump outlet fan Air Air mode output N2 0 absent 1 always ON 2 ON upon request of the controller 3 ON upon request of the controller and for set time 4 follow hot keep or hot start in heating always on in cooling 5 follow hot keep or hot start in heating follow the comp in cooling Flag 56 R W
10. Duty cycle differential example 56 Damper opening duty cycle differential r37 used to calculate the duty cycle for opening the damper Damper closing duty cycle differential r38 used to calculate the duty cycle for closing the damper Key 1 opening time 2 cycle time Autotuning correction coefficient r39 when changing the step in autotuning prevents sudden variations in the controlled values from altering the control logic Management of minimum damper opening r40 enables and sets the management of the minimum damper opening r40 0 the damper is always closed if control is not active r40 1 the damper is moved to the minimum opening when control is not active and only if the reecooling conditions are satisfied r40 2 the damper is moved to the minimum opening when control is not active and only if the freeheating conditions are satisfied r40 3 the damper is moved to the minimum opening when control is not active and only if the reecooling and freeheating conditions are satisfied r40 4 the damper is moved to the minimum opening when control is not active and only if the reecooling and freeheating conditions are not true r40 5 the damper is moved to the minimum opening when control is not active and only if the reeheating conditions are not true r40 6 the damper is moved to the minimum opening when control is not active and only if the reecooling conditions are not true r40 7 the damper is moved to the m
11. Minimum OFF time c02 This establishes the time that the compressor must remain OFF for when stopped even if the start signal is sent The compressor LED flashes in this phase Key 1 signal 2 compressor 3 min OFF time interval Delay between 2 starts of the compressor c03 This sets the minimum time that must elapse between two successive starts of the same compressor determines the maximum number of starts per hour for the compressor The compressor LED flashes in this phase If by mistake the user enters a value lower than the sum of C01 C02 this parameter will be ignored and only the times C01 and C02 will be considered Key 1 signal 2 compressor 3 min time interval between two ON routins uC SE 030220426 rel 2 1 09 06 2010 37 ON Fig 5 a c ON Fig 5 a d gt OFF t ON ENGLISH ae n O Zz Ww ON OFF ON ON OFF ON OFF tt Sr LL CRE ON OFF ON OS AS o a f fo ON OFF ON OFF c5 ON OFF ON 00O OFF Q N ON OFF ON OFF 38 Start delay between compressors c04 This sets the delay between the starts of the two compressors so as to reduce the peak power input and make the compressors start more smoothly The compressor LED flashes in this phase In the event of capacity control the delay c04 between compressor and
12. R W 3 Analog O A04 Antifreeze support heater set point differential U 0 200 CF 0 70 AR 77 R W 77 Analog Z A05 Diff for antifreeze heater auxiliary heater U 3 500 CF 0 10 4 R W 4 Analog LLI A06 Auxiliary heater probe F 0 1 Flag J1 0 6 R W J6 Digital Control probe see see Table 5 a Antifreeze probe see see Table 5 a A07 Antifreeze alarm set point limit F 400 1760 C F 0 400 5 R W 5 Analog A08 Auxiliary heater set point in heating mode U A01 q6 CEF 10 250 AA 6 R W 16 Analog A08 Antifreeze support heater set point differential U 0 200 CF JO 70 AR 78 R W 78 Analog A09 Auxiliary heater differential in heating mode U 3 500 C F 0 30 7 R W Z Analog A10 Antifreeze automatic start up U 0 3 1 0 23 R W 1230 Integer 0 disabled function 1 Heaters and pump on at the same time on A4 A8 2 Heaters and pump on indipendently on A4 A8 3 Heaters ON on A4 A8 All Auxiliary heater 2 set point in heating U A01 q6 SE 0 1 250 AA 67 R W 167 Analog A11 Support heater 2 differential in heating U 0 200 C F 0 1 70 AR 79 R W 79 Analog A12 T diff set point for dirty filters air air U 0 1760 C F 0 1 150 57 R W 157 Analog A13 Outlet limit set point in freecooling conditions U A07 q6 C F_ 0 1 30 80 R W 80 Analog A14 Antifreeze alarm set point from EVD U A07 A04 C F 0 1 30 82 R W 82 Analog Table 4 c 4 3 4 Probe reading parameters b display parameter and description default min max U
13. When C9 0 the function is disabled the compressors will not switch over UC SE 030220426 rel 2 1 09 06 2010 Hour counter compressor 1 2 3 4 c10 c11 c12 c13 These indicate the number of operating hours of compressor 1 2 3 4 expressed in hundreds of hours Pressing and Y together when the hour counter is displayed resets the hour counter and consequently cancels any maintenance requests in progress c10 operating hours comp 1 c11 operating hours comp 2 c12 operating hours comp 3 c13 operating hours comp 4 ENGLISH Compressor operating hour counter threshold c14 This sets the number of compressors operating hours expressed in hundreds of hours above which the maintenance request signal is sent c14 0 function disabled Evaporator pump fan 1 hour counter c15 This indicates the number of operating hours for the evaporator pump or fan 1 expressed in hundreds of hours Pressing and Y together when the hour counter is displayed resets the hour counter and consequently cancels any maintenance requests in progress Condenser or backup pump fan 2 hour counter c16 This indicates the number of operating hours for the condenser pump or backup or fan 2 expressed in hundreds of hours Pressing and Y together when the hour counter is displayed resets the hour counter and consequently cancels any maintenance requests in progress Minimum OFF time before the next pump f
14. if the electronic expansion driver EVD is connected to the tLAN based on he evaporation temperature sent by the driver The evaporator water outlet temperature is compared against the threshold A01 while the evaporation temperature is compared against the hreshold A14 The compressors in circuit 1 and the condenser fans in circuit 1 are immediately stopped the buzzer and alarm relay are activated and the display starts flashing If the uC SE is in Standby the alarm condition is not detected and only the heaters are managed Reset depends on parameter P5 1 in the event of automatic reset the unit restarts automatically if the temperature is above the value A01 A02 or A14 A02 2 in the event of manual reset the unit can restart manually even if the alarm is active After the time A03 if the alarm persists the unit will stop again For air air units the parameter becomes the antifreeze outlet limit alarm set point If the outlet limit is active the freecooling damper is forced closed and the message SUL is shown on the display A2 antifreeze alarm circuit 2 As for A1 but relating to circuit 2 Ht high temperature warning This alarm is activated when the threshold is exceeded read by B1 set for the parameter P16 It is delayed at power ON by the parameter P17 and causes the activation of the alarm relay and the buzzer without deactivating the outputs It is reset automatically when conditions that caused the alarm are n
15. parameter d17 the fan management selected by F13 is disabled Fan on time when starting in high condensing temp F14 establishes the time the fans are operated at maximum speed if starting with a high condensing temperature F14 0 function disabled F14 gt 0 fan on time in seconds The function is operational only in chiller mode if the probe on the condenser is a temperature sensor and only for air cooled units When the first compressor in the circuit in question starts it is assumed that the temperature of the environment is close to the temperature of the condenser if the value read by the condenser probe is higher than the value of F05 F07 as well as starting the compressor the fans in the circuit in question are forced on at maximum speed for the time set by F14 Activate low noise F15 This function moves the condensing pressure set point so as to lower the fan speed and consequently reduce noise specifically at night If low noise is active in cooling the condenser control set points are increased by F16 If low noise is active in heating the set points are reduced by F17 F15 0 Low noise deactivated F15 1 Low noise activated in cooling F15 2 Low noise activated in heating F15 3 Low noise activated in cooling and heating N B The variation in the set point is not active during defrost Cooling set point differential F16 Differential added to the condenser control set point when low noise i
16. parameter r17 Set point B2 in hot start r32 The fan after reaching the hot start set point cannot be stopped if at least one compressor is on or the electric heaters are operating Hot start differential r33 Hot start differential Key 1 outlet fan 2 probe B2 54 UC SE 030220426 rel 2 1 09 06 2010 Enable freecooling freeheating r34 Sets the type of freecooling heating with or without compressors r34 0 disabled r34 1 freecooling without compressors cooling only r34 2 freecooling with compressors cooling only r34 3 freeheating without compressors heating only r34 4 freeheating with compressors heating only r34 5 freecooling and freeheating without compressors freecooling in cooling only and freeheating in heating only r34 6 freecooling and freeheating with compressors freecooling in cooling only and freeheating in heating only r34 7 freecooling without compressors always r34 8 freecooling with compressors always r34 9 freeheating without compressors always r34 10 freeheating with compressors always r34 11 freecooling and freeheating without compressors always r34 12 freecooling and freeheating with compressors always The purpose of the function is to exploit the outside climatic conditions when such can cool or heat the controlled environment by modulating the inlet of outside air into the room Freecooling can be enabled when r
17. 0 5 bar respectively Temperature pressure set point for minimum speed in heating F08 This represents the temperature or pressure above which the fans are started at minimum speed Fig 5 a n For ON OFF control this represents the temperature or the pressure above which the fans are switched off Fig 5 a l Temperature pressure differential for maximum speed in heating F09 This represents the temperature or pressure above which the fans are started at minimum speed Fig 5 a l In the case of ON OFF control it represents the temperature or pressure above which the fans are switched OFF Fig 5 a k For capacity control for low pressure this represents subtracted from F08 the pressure limit below which the step disabled during capacity control is re activated Temperature pressure differential for fans Off in heating F10 If fan speed control is used this represents the temperature or pressure differential in reference to F08 above which the fans are stopped The fans are started 1 C lower if using NTC temperature probes or 0 5 bars lower if using pressure probes When using NTC temperature or pressure probes for condenser control the fans are started with an hysteresis of 1 C or 0 5 bar Fan start time F11 This establishes the operating time at maximum speed when the fans are started so as to overcome the mechanical inertia of the motor The same times are observed in reference to the start of the compress
18. 0 P 21 R W 21 Digital P25 Select digital output 2 F 0 Fj n 0 08 R W 1315 nteger P26 Select digital output 3 F 0 7 n 0 09 R W 1316 nteger P27 Select digital output 4 F 0 7 n 0 O R W 1317 nteger P28 Select digital output 5 F 0 7 n 0 1 R W 1318 nteger P29 Select digital output 7 F 0 7 n 0 X 2 R W 1319 nteger P30 Select digital output 8 F 0 7 n 0 X 3 R W 320 nteger P31 Select digital output 9 F 0 7 n 0 X 4 R W 1321 nteger P32 Select digital output 10 F 0 7 n 0 X 5 R W 322 nteger P33 Low pressure alarm threshold F 0 P18 Dbar__ 0 1 10 P 76 R W 76 Analog P34 Select digital input 5 F 0 23 n 23 F 22 R W 329 nteger P35 Mute alarm with mute button F 0 0 23 R W 123 Digital 0 no 1 yes P36 Type of high pressure alarm management F 0 0 24 R W 24 Digital 0 always 1 only if compressor active and 2 s after activation Table 4 j 30 uC SE 030220426 rel 2 1 09 06 2010 4 3 11 Control setting parameters r display parameter and description default min max U O M variat def visibility supervis Modbus variable indicat level variable type T r01 Cooling set point D r13 14 C F 01 12 0 41 R W 41 Analog N r02 Cooling differential D 3 500 C F 0 1 30 42 R W 42 Analog pa
19. 05 RTC year U 0 99 anni 6 W 133 R W 1340 nteger 06 Start hours for 2nd set point in cooling U 0 23 h 0 W 92 R W 299 nteger Lu 07 Start minutes for 2nd set point in cooling U 0 59 min 0 W 93 R W 300 nteger 08 End hours for 2nd set point in cooling U 0 23 h 0 W 94 R W 301 nteger 09 End minutes for 2nd set point in cooling U 0 59 min 0 W 95 R W 302 nteger 0 Start hours for 2nd set point in heating U 0 23 h 0 W 9 R W 303 nteger 1 Start minutes for 2nd set point in heating U 0 59 min 0 W 97 R W 304 nteger 2 End hours for 2nd set point in heating U 0 23 h 0 W 98 R W 305 nteger 3 End minutes for 2nd set point in heating U 0 59 min 0 W 99 R W 306 nteger 4 Start hours for 2nd low noise in cooling U 0 23 h 23 W 100 R W 1307 nteger 5 Start minutes for 2nd low noise in cooling U 0 59 min 0 W 101 R W 1308 nteger 6 End hours for 2nd low noise in cooling U 0 23 h 7 W 102 R W 1309 nteger 7 End minutes for 2nd low noise in cooling U 0 59 min 0 W 103 R W 1310 nteger 8 Start hours for 2nd low noise in heating U 0 23 h 23 W 104 R W 1311 nteger 9 Start minutes for 2nd low noise in heating U 0 59 min 0 W 105 R W 1312 nteger 20 End hours for 2nd low noise in heating U 0 23 h 7 W 106 R W 1313 nteger 21 End minutes for 2nd low noise in heating U 0 59 min 0 W 107 R W 1314 nteger Table 4 1 4 3 13 Supervisor only variables display parameter and description default min max UOM variat def visibility supervis Modbus variable indicat
20. 09 06 2010 D1 defrost signal circuit 1 When the defrost is on circuit 1 the display shows the message D1 D2 defrost signal circuit 2 When the defrost is on circuit 2 the display shows the message D2 Fd dirty filter warning This warning is only shown if the temperature difference between the exchanger inlet and outlet is higher than parameter A12 Driver All the driver alarms on the uC SE that stop the unit feature automatic reset Consequently the possibility to select the automatic resetting of the entire system must be selected for the drivers by setting the corresponding parameters The CSE can send the Go Ahead command according to the normal procedure for resetting the alarms from the keypad Ed1 tLan communication error with Driver 1 The alarm is generated after a fixed time 5 s from when the UCSE loses contact with Driver 1 In this case circuit 1 is disabled for safety reasons Ed2 tLan communication error with Driver 2 expansion card As for Ed1 but relating to driver 2 SH1 low superheat alarm circuit 1 The low superheat alarm for circuit 1 after a fixed time 5 s inhibits the circuit 1 for safety reasons The risk is that the compressors will flood SH2 low superheat alarm circuit 2 As for SH1 but relating to driver 2 nO1 MOP warning maximum operating pressure circuit 1 The warning appears on the display and if the expansion card is fitted the corresponding relay is activated nO2 MOP warn
21. 12 User intera CO essas R N 2 CONNECTIONS Pal GEMS a lag AMENER SR REE aise E E NER 22 N tWOTKlayO U Enossa n a E REAS 3 APPLICATIONS SAIT AIRIS Ra di eo dune 32 AIR AIR h at DUMP hentai basanuemetioatnbaautl nas 3 3 AIRAWATER Chile tenons e a ERREEN 3 4 AIR WATER heat DUMP nn 3 5 WATER WATER CHIMER ssssescsscssssesesinsssessissorctecnesneristonseioeesseaieiisiysbesSetnisnseieseeetesbbinbsesbete 3 6 WATER WATER heat pump with reversal on gas Circuit 3 7 WATER WATER heat pump with reversal on water Circuit 3 8 Air cooled condensing unit without reverse Cycle 3 9 Reverse cycle air cooled condensing Unit 3 10 Water cooled condensing unit without reverse Cycle 3 11 Reverse cycle water cooled condensing Unit 3 12 ROOTTOPUNITS nee ns nana es nm IEEE 4 PARAMETERS 4 1 General parameters inner A2 Men str CtUtE sariraiensnmi nnana aR aN irii 4 3 Parameter tables 5 DESCRIPTION OF THE PARAMETERS 6 TABLE OF ALARMS 7 CONNECTIONS ACCESSORIES AND OPTIONS FM COMMECHON diaga Misses 7 2 Expansion card 7 3 EVD4 Electronic expansion valve driver 74 Fan speed control board code MCHRTF nn 7 5 Fan ON OFF control board code CONVONOFFO nues 64 7 7 Minimum and maximum fan speed calculation 7 8 Programming key code PSOPZKEYAO ne 7 9 RS485 serial OptIONS nn Fe VOUT ENT VAS ES A eed cto E E arto acta tase anteaters 8 DIMENSIONS 9 CODES 10 TECHNIC
22. B2 UC SE 030220426 rel 2 1 09 06 2010 35 ON ae n UO Zz Ww CAREL NTC probe mode H1 2 3 4 5 and 6 O A1 t Fig 5 a b 36 Antifreeze low room temperature air air alarm differential A02 This represents the differential for the activation of the antifreeze alarm low room temperature in air air units the alarm condition cannot be reset until the temperature exceeds the set point differential A01 A02 or A14 A02 Antifreeze alarm bypass time low room temperature from unit start in heating mode A03 This represents the delay in the activation of the antifreeze alarm when starting the system In the case of air air units this parameter represents the delay time for the low room temperature return intake air signal only in heating mode This means that the room being heated is too cold threshold set by the user Antifreeze heater auxiliary heater set point in cooling A04 Determines the threshold below which the antifreeze heater is switched on In the air air units HO1 0 1 this parameter represents the temperature value below which the auxiliary heater is activated This temperature is compensated according to the following equation Set_heaters cooling A04 Compensated set point Set point set In the air air heat pumps HO1 1 the auxiliary heaters are not used in cooling mode N B The antifreeze set points are not compensated Antifreeze heater auxiliary heat
23. F 12 0 120 C F 0 1 0 0 X 8 R W 8 Analog 19 Probe B7 calibration F 12 0 120 C F 0 1 0 0 X 9 R W 9 Analog 20 Probe B8 calibration F 12 0 120 C bar F 0 1 0 0 X 10 R W 10 Analog 21 Digital filter U 1 5 1 4 20 R W 227 Integer 22 nput limitation U 1 5 1 8 21 R W 228 Integer 23 Unit of measure 0 C U 0 Flag 1 0 5 R W 5 Digital 1 F Table 4 b 26 uC SE 030220426 rel 2 1 09 06 2010 4 3 3 Antifreeze support heater setting parameters A display parameter and description default min max UOM variat default visibility supervis Modbus variable indicat evel variable type A01 Alarm set point antifreeze low ambient temperature air air U A07 A04 C F 0 30 1 R W 1 Analog ac A02 Differential for antifreeze low ambient temperature alarm air air U 3 1220 CF J0 50 2 R W 2 Analog n A03 Bypass time for antifreeze alarm low ambient temp when turning on U 0 150 js 1 0 22 R W 229 Integer T the unit in heating mode A04 Set point for the activation of antifreeze heater auxiliary heater U A01 r16 CPF 10 50 AA 3
24. O M variat default visibility supervis Modbus variable indicat level variable type b00 Config of probe to be shown on the display U 0 11 1 0 24 R W 231 integer 0 probe B1 1 probe B2 2 probe B3 3 probe B4 4 probe B5 5 probe B6 6 probe B7 7 probe B8 8 set point without compensation 9 dynamic set point with possible compensation 10 remote ON OFF digital input status 11 AD probe b01 Value read by probe B1 D 0 0 CLE 0 02 R 02 Analog b02 Value read by probe B2 D 0 0 CPE gt 0 03 R 03 Analog b03 Value read by probe B3 D 0 0 C F 0 04 R 04 Analog b04 Value read by probe B4 D 0 0 CPF 0 s 05 R 05 Analog Dbar b05 Value read by probe B5 D 0 0 C AF z 0 X 06 R 06 Analog b06 Value read by probe B6 D 0 0 C F 0 X 07 R 07 Analog b07 Value read by probe B7 D 0 0 SC 0 X 08 R 08 Analog b08 Value read by probe B8 D 0 0 C AF 0 X 09 R 09 Analog Dbar b09 Driver 1 evaporator temperature D 0 0 C PE a 0 V 0 R 0 Analog b10 Driver 1 evaporator pressure D 0 0 Dbar 0 V 1 R 1 Analog b11 Driver 1 superheating D 0 0 C AF 0 V 2 R 2 Analog b12 Driver 1 saturation temperature D 0 0 CPF 0 V 3 R 3 Analog b13 Driver 1 valve position D 0 1000 E 0 V 4 R 4 Analog b14 Driver 2 evaporator temperature D 0 0 CAF 0 XV 5 R 5 Analog b15 Driver 2 evaporator pressure D 0 0 Dbar 0 XV 6 R 6 Analog b16 Driver 2 superheating D 0 0 ICE 0 XV 7 R 7 Analog b17 Driver 2 saturation temperature D 0 0 CAF 0 XV
25. U 0 500 C F 0 150 F 28 R W 28 Analog Fan shut down pressure in Cooling mode U 0 FOS Dbar 0 50 FP 27 R W 27 Analog F08 Speed temp set point in Heating mode U 400 1760 C F 0 350 F 30 R W 30 Analog Pressure value for max speed in Heating U 11 12 Dbar 0 130 FP 29 R W 29 Analog F09 Max speed diff in Heating mode U 0 500 C F J0 50 F 32 R W 32 Analog Pressure value for max speed in Heating U 0 F08 Dbar 0 40 FP 31 R W 31 Analog F10 Fan shutdown diff in Heating mode U 0 F08 C F 0 50 F 34 R W 34 Analog Pressure to turn OFF the fan in Heating U 0 300 Dbar 0 30 FP 33 R W 33 Analog F11 Fan starting time U 0 120 Ss 1 0 F 51 R W 258 Integer F12 Triac impulse duration fan start F 0 10 s 1 2 F 52 R W 259 Integer F13 Fan management in defrost mode F 0 2 Int 1 0 F 53 R W 260 Integer 0 Fans deactivated 1 Fans in chiller mode 2 Maximum speed after defrost F14 Fan with high condensing temperature when starting U 0 999 1 0 FN 91 R W 298 Integer F15 Low noise activation U 0 3 1 0 F 85 R W 292 Integer 0 deactivated 1 activated in cooling 2 activated in heating 3 activated in cooling and heating F16 Low noise diff in cooling F 0 500 C F 101 0 L 35 R W 35 Analog bar F17 Low noise diff in heating F 0 500 C F 10 1 0 L 36 R W 36 Analog bar Table 4 9 28 uC SE 030220426 rel 2 1 09 06 2010 4 3 8 Unit setting parameters H display indicat parameter and description default level min
26. always ON In this case the pump symbol is not managed Note In the event of flow alarms with automatic reset 10 attempts are made to restart the pump every 90 seconds for a maximum time of P02 after the 10 attempts the alarm becomes manual reset With the second pump the attempt consists in switching over the pump that is on with the same logic Disable load default values H22 If this parameter is set to 1 it disables the possibility of restoring the default parameters using the PRG button at power ON select supervisor protocol H23 establishes the protocol used for the connection to the supervisor from the serial board RS485 H23 0 CAREL protocol baud rate 19200 H23 1 Modbus protocol e Alarm settings parameters P Flow switch alarm delay when starting pump P01 Establishes a delay in the recognition of the flow switch alarm when starting the pump this allows the flow rate to stabilise In the event of alarms the compressors are stopped immediately ignoring the times Flow switch alarm delay in steady operation P02 Establishes a delay in the recognition of the flow switch alarm in steady operation so as to filter any variations in flow rate or air bubbles present in the water circuit In the event of alarms the compressors are stopped immediately ignoring the times Low pressure alarm delay at compressor start P03 Establishes a delay in the recognition of the low pressure alarm when the
27. and maintenance warnings The system made up of the control board MCH200003 and the other optional boards MCH200002 MCH200485 MCHRTF CONVONOFF CONVO 10A EVD000040 represents a control device to be integrated into class 1 or class 2 appliances The class of protection against electric shock depends on how the control device is integrated into the unit built by the manufacturer Disconnect power before working on the board during assembly maintenance and replacement The protection against short circuits must be guaranteed by the manufacturer of the appliance that the controller will be fitted on Maximum length of the NTC ratiometric probe NTC ratiometric probe connection cables 10m digital input connection cables 10m power output connection cables 5m fan control output connection cables 5m power cables 3m Table 10 e 10 2 Software updates 10 2 1 Notes for version 1 1 First release 10 2 2 Notes for version 1 2 Optimised use of the programming key 10 2 3 Notes for version 1 3 mplemented direct current operation Use EXP version 1 5 or higher 10 2 4 Notes for version 1 4 mplemented a differential relating to the working set point for electric heaters in air and water source units Implemented cooling only air source unit with electrical heaters operating in heating mode only mplemented new logic for the activation of the alarm relays mplemented new logic for the management of the high pr
28. control with high pressure U 0 3 Flag 1 0 P 66 R W 273 Integer 0 capacity control deactivated 1 capacity control with high pressure active 2 capacity control with low pressure active 3 capacity control with high and low pressure active POS Alarm reset F 0 6 Flag 1 0 67 R W 1274 Integer 0 HP1 2 LP1 2 A1 2 Lt manual 1 HP1 2 LP1 2 A1 2 Lt automatic 2 HP1 2 A1 2 Lt manual LP1 2 automatic 3 HP1 2 manual LP1 2 A1 2 Lt automatic 4 HP1 2 LP1 2 manual A1 2 Lt automatic 5 HP1 2 LP1 2 thrice per hour manual A1 2 Lt automatic 6 HP1 2 LP1 2 thrice per hour manual A1 2 Lt manual P06 Cooling heating logic F 0 1 Flag 1 0 19 R W 119 Digital 0 77 Chiller Heat pump Heat pump Chiller PO7 Low pressure alarm with pressure probe F 0 1 Flag 1 0 P 68 R W 275 Integer 0 Disabled 1 Enabled P08 Digital input 1 selection F 0 23 Int 1 0 69 R W 1276 Integer O N 1 FL man 2 FL auto 3 TP man A TP auto 5 TC1 6 TC1 auto 7 TC2 man man 8 TC2 9 Cool 10 Cool heat with 11 LA man auto heat delay 12 LA 13 2 Set 14 2 Set timer 15 stop defrost auto cl 16 stop 17 start 18 start defrost c 2 19 step 1 defrost c 2 defrost c 1 20 step 2 21 step3 22 step 4 2
29. ensure he correct configuration so as to respond to this specification Type of microswitching 1 C nsulation between relays in group A functional nsulation between the relays in group A and the very low voltage parts reinforced nsulation between relays in group A and the signal relays primary nsulation between the signal relays and the very low voltage parts reinforced nsulation between the relays and the front panel reinforced Digital inputs Electrical standard voltage free contacts Closing current to earth 5 mA Maximum closing resistance 50 W Analogue inputs B1 B2 B3 B4 NTC CAREL temperature probes 10 kW at 25 C The response time depends on the component used typical value 90 s B4 NTC temp probes 10 kW at 25 C or CAREL 0 to 5 V ratiometric pressure probes SPKTOO R Fan output Control signal for CAREL modules MCHRTF CONVONOFF and CONVO 10A Phase width modulation settable width or modulation of the duty cycle o load voltage 5V 10 Short circuit current 30 mA Minimum output load 1 kW Front panel index of protection P55 Storage conditions 10770 C humidity 80 rH non condensing Operating conditions 10T55 C humidity lt 90 rH non condensing Degree of pollution Normal Cat of resist to heat and D RU94 VO fire PTI of the insulating All the insulating materials h
30. first started autotuning enabled Compressor rotation r05 The rotation of the compressors allows the operating hours to be balanced either statistically using FIFO logic or absolutely by counting the effective operating hours Settings r05 0 rotation disabled The customer can use compressors with different power ratings according to the desired logic or manage the capacity control functions The compressors are started stopped in proportional mode r05 1 rotation with FIFO logic first ON first OFF and vice versa first OFF first ON in this mode the operating hours are optimised together with the number of starts even if the compressor safety times are always respected r05 2 rotation with control of operating hours in this way the compressors will have the same operating hours as the compressor with the least operating hours is always started first again observing the safety times This does not however consider FIFO logic and does not optimise the starts and stops In the case of capacity controlled compressors 1 per circuit FIFO logic or timed operation will refer to the actual circuit and not the compressor valves If for example when capacity is required from circuit 1 compressor 1 starts first capacity controlled not at full capacity and then the valve is managed as a second step so that the compressor will work at maximum efficiency If MCSE 030220426 rel 2 1 09 06 2010 less capacity is r
31. i Key Figure 5 b c OFF rot 7 r02 r06 enable the dead zone enabled if r06 1 or 3 r07 dead zone r01 cooling set point r02 cooling differential ON gt gt In chiller Cooling mode the dead zone moves the cooling proportional band above the set point by the value r07 ed Key Figure 5 b d r06 enable the dead zone enabled if r06 1 or 3 r07 dead zone i r03 heating set point i r04 heating differential OFF In heat pump heating mode the dead zone moves the heating proportional band below the set point by the value r07 r03 r07 r04 r03 r07 r02 4 03 r07 r03 3 r0 r03 r07 r04 4 Outlet temperature control by time r06 4 only chiller Fig 5 b d This type of control is based on the need to maintain the outlet temperature as constant as possible despite the load being variable or the reduced inertia of the system The logic has the aim of keeping the temperature inside the dead zone If outside the zone the compressors will be activated with the logic described below so as to return inside the dead zone neither too quickly using an integral or derivative nor too slowly with fixed time logic There are two logical times involved the activation time and deactivation time Dead zone differential 4 r07 see dead zone HO LEE PRE SE ee eee activation time Activation delay at lower limit of r07 if r06 4 A r08 The value set is used in the control algorithm see timed outlet temperature control as the maxim
32. level variable ype Circuit 1 alarm D 0 0 41 R 41 Digita Circuit 2 alarm D 0 0 42 R 42 Digita EVD valve 1 alarm D 0 0 43 R 43 Digita EVD valve 2 alarm D 0 0 44 R 44 Digita General alarm D 0 0 45 R 45 Digita Probe alarm D 0 0 46 R 46 Digita Compressor warning D 0 5 0 47 R 47 Digita Compressor error alarm D 0 0 25 R 25 Digita EVD 1 warning D 0 0 48 R 48 Digita z EVD 2 warning D 0 0 49 R 49 Digita 5 General warning D 0 0 50 R 50 Digita 7 Temperature warning D 0 0 51 R 51 Digita 5 Fan warning D 0 0 52 R 52 Digita DTE DTC alarm D 0 gt 0 77 R 77 Digita 2 Digital input 1 D 0 0 53 R 53 Digita S Digital input 2 D 0 0 54 R 54 Digita Digital input 3 D 0 z 0 55 R 55 Digita 5 Digital input 4 D 0 0 56 R 56 Digita E Digital input 5 D 0 0 57 R 57 Digita Digital input B4 D 0 0 58 R 58 Digita Digital input 1 D 0 1 0 59 R W 59 Digita 7 Digital input 2 D 0 1 0 60 R W 60 Digita Digital input 3 D 0 1 0 61 R W 61 Digita Digital input 4 D 0 1 0 62 R W 62 Digita Digital input 5 D 0 1 0 63 R W 63 Digita Standby On status D 0 1 0 64 R W 64 Digita 0 Standby 1 On Heating Cooling status D 0 1 1 65 R W 65 Digita 0 Heating 1 Cooling Gain constant for probe 1 calibration F 0 8000 1000 5 R 212 nteger Gain constant for probe 2 calibration F 0 8000 1000 6 R 213 nteger Gain constant for probe 3 calibration F 0 8000 1000 7 R 214 nteger Gain constant
33. par PO8 PO9 P10 P11 P12 P13 tC1 Thermal overload circuit 1 As for tP but relating to circuit 1 tC2 Thermal overload circuit 2 As for tC1 but relating to circuit 2 LA generic warning This represents a generic warning that appears on the display from digital input without modifying the operation of the unit With the 1st circuit module only the alarm relay is activated while with the expansion card the warning relay can be used FL flow alarm This alarm is detected only if the pump is ON excluding the delays when starting PO1 and in steady operation P02 irrespective of the status of the compressor All of the outputs are disabled pump compressor without observing the OFF times condenser fan and the buzzer sounds the alarm relay is activated and the display flashes The presence of the utility water pump must be enabled H50 It can be reset either manually or automatically see P08 P09 P10 P11 P12 P13 FLb Backup pump warning The warning activates the warning relay and displays the message FLb reset is manual This indicates the operation of the backup pump if present due to a probable fault on the main pump suggesting that maintenance is required If the flow alarm features automatic reset the controller will make 10 attempts to re start the pumps after which the FL alarm will replace FLb If the flow alarm features manual reset when first activated the controller will display the alarm FLb swit
34. temp Depends on P05 ON ON 51 R Temperature Digita advice AHt High temperature at the start up Automatic OFF OFF OFF ON 50 R General warning Digita ALt Low temperature at the start up Automatic OFF OFF OFF ON 50 R General warning Digita ELS Low supply voltage Automatic ON 50 R General warning Digita EHS High supply voltage Automatic OFF OFF OFF OFF OFF OFF OFF 45 R General alarm Digita Er Terminal communication error Automatic OFF OFF OFF OFF OFF ON Signal on display Ed EVD 1 tLAN error Automatic OFF C1 2 OFF ON 43 R EVD 1 warning Digita Ed2 EVD 2 tLAN error Automatic OFF C3 4 OFF ON 44 R EVD 2 warning Digita SH EVD 1 superheat alarm OFF C1 2 OFF ON 43 R EVD 1 warning Digita SH2 EVD 2 superheat alarm OFF C3 4 OFF ON 44 R EVD 2 warning Digita nO OP 1 warning Automatic ON 48 R EVD 1 advice Digita nO2 OP 2 warning Automatic ON 49 R EVD 2 advice Digita LO1 LOP 1 warning Automatic ON 48 R EVD 1 advice Digita LO2 LOP 1 warning Automatic ON 49 R EVD 2 advice Digita HA High inlet temperature warning Automatic A ON 48 R EVD 1 advice Digita circ 1 HA2 High inlet temperature warning Automatic z ON 49 R EVD 2 advice Digita circ 2 EP1 EVD 1 Eeprom error Automatic OFF C1 2 OFF ON 43 R EVD 1 warning Digital EP2 EVD 2 Eeprom error Automatic OFF C3 4 OFF Ol
35. valve becomes c04 2 In the event of defrost operation the delay between compressor and compressor is 3 seconds and between compressor and valve is 2 seconds Key 1 1 signal 2 2nd signal 3 1 compressore 4 2 compressor 5 time delay between two compressors ON routines time delay of the capacity controlled routine Stop delay between compressors c05 This sets the stop delay between the compressors Key 24 signal Ist signal 2 compressor 1 compressore time delay between two compressors OFF routines time delay before the capacity controlled routine vikwWwns Delay on power up reset power supply c06 At power ON when the controller is physically switched ON the activation of all the outputs is delayed so as to distribute the power input and protect the compressor against repeated starts in the event of frequent power failures This means that after the delay time the controller will start to manage the outputs based on the other times and the other normal functions Compressor start delay from pump outlet fan air air ON c07 In cooling and heating operation if the operation of the pump outlet fan is subject to the controller parameter HO5 2 the compressor is started when required after the set time from the activation of the water pump or outlet fan in air air units If the pump outlet fan is always ON H05 1 and consequently does not depend on the control logic the compressor is s
36. 0 24 R 124 Analog c13 Compressor 4 timer D 0 8000 100 hours 0 25 R 125 Analog c14 Operation timer threshold U 0 100 100 hours 1 0 34 R W 241 Integer c15 Hour counter evaporator pump fan 1 D 0 8000 100hours 0 a 26 R 126 Analog c16 Hour counter condenser backup pump fan 2 D 0 8000 100hours 0 27 R 127 Analog c17 Minimum time between 2 pump starts U 0 150 min 1 30 35 R W 242 Integer c18 Minimum pump ON time U 0 15 min 1 3 36 R W 243 Integer c19 Delay between valve and compressor U 0 100 s 1 3 25 R W 332 Integer Table 4 e UC SE 030220426 rel 2 1 09 06 2010 27 4 3 6 Defrost setting parameters d display parameter and description default min max UOM variat default visibility supervis Modbus variable T indicat level variable type N d01 Defrosting cycle Condenser antifreeze U 0 1 Flag 1 0 F 7 RW 7 Digital 0 no D 1 yes with shared defrosting WE d02 Time or temperature based defrosting U 0 3 Flag 1 0 D 90 R W 1297 Integer zm 0 time 1 temp press Lu 2 pressure start temperature end 3 activate sliding defrost d03 Start defrosting temperature U 400 d04 C F 0 1 50 DN 19 R W 1
37. 0 temp 1 press bit9 condenser temp press probe available bit10 restart unit after valve open alarm set in reset_ alarms bit11 enable control for driver 2 g Communication of the logical status of the digital outputs to expansion bit0 compressor bit1 compressor 4 bit2 heater 2 bit3 reversing valve bit4 warning bit5 condenser pump bit6 fans in alarm status bit7 fan status in alarm ON 1 ofF 0 it8 speed to be set 100 1 speed from probe 0 it9 indicates fans 2 for defrost circuit 2 bit10 heater 1 bit11 open damper bit12 close damper bit13 humidifier oO 4200 0 R 207 Integer uOSE 030220426 rel 2 1 09 06 2010 33 ae n O Zz LL Signals from the expansion board 0 R 207 Integer bitO probe alarm 5 biti probe alarm 6 bit2 probe alarm 7 bit3 probe alarm 8 bit4 zero crossing alarm circuit 2 bit5 tLan alarm valve 2 bit6 fans on signal symbol on bit7 fan symbol flashing circuit 2 bit8 max fan speed circuit 2 Signals to the expansion board 0 R 207 Integer bit0 temporary season internal cool 1 heat 0 bit1 frozen season same as SV bit2 temporary status 1 stand_by 0 bit3 frozen status 1 stand_by 0 bit4 low voltage alarm bit5 high voltage alarm bit6 enable control for expansion bit7 enable low_noise in cooling bit8 enab
38. 1 09 06 2010 7 8 Programming key code PSOPZKEYAO The programming keys PSOPZKEY00 and PSOPZKEYAO for CAREL controllers are used for copying the complete set parameters for uC SE The keys must be connected to the connector 4 pin AMP fitted on the controllers and can work with the instruments ON or OFF as indicated in the operating instructions for the specific controller The two main functions upload download that can be selected through two dip switches which are placed under the battery cover They are Loading to the key the parameters of a controller UPLOAD Copying from the key to one or more controllers DOWNLOAD A Warning the copying of the parameters is allowed only between instruments with the same code Data loading operation to the key is always allowed To make identification of the key easier CAREL has inserted a label on which you can describe the loaded programming or the machine to which you are referring IMPORTANT NOTE the key can be used only with controllers uC SE that have the same Firmware version UPLOAD copying the parameters from an instrument to the key open the rear hatch of the key and place the two dip switches in the OFF position see Fig 7 j a Close the hatch connect the key to the connector of the instrument press the button on the key and keep it pressed checking the LED signal sequence at first it is red after a few seconds it becomes green if the sequence
39. 11 values relative to the working set point r40 2 electric heater set point A4 value relative to the working set point A8 and A11 absolute values r40 3 electric heater set point A4 A8 and A11 values relative to the working set point Damper inactivity time in control r44 represents the time expressed in seconds of inactivity between one opening or closing of the damper and the next This time is used to adapt the dynamics of the system to the different applications thus allowing the damper to reach a stable position according to the load and the environment Firmware parameters F r These parameters cannot be set display only H96 H97 software version of Driver 1 2 H98 software version of the expansion H99 software version of the uC SE controller Functions available with the clock board The alarm log is only active and operative if the clock board is fitted The terminal shows whether the clock board is fitted by displaying the following parameters RTC hours t01 RTC hours RTC minutes t02 RTC minutes RTC day t03 RTC day RTC month t04 RTC month UOSE 030220426 rel 2 1 09 06 2010 RTC year t05 RTC year The alarms are only shown on the local display The controller saves the significant events that stop alarms or limit warnings the operation of the unit Up to 25 events can be saved highlighting Event code Start hours Start minutes Start
40. 2 11__ compressor overload 1 and 2 12__ low pressure land 2 13 ambient probe 14 compressor 2 15 reversing valve land 2 16 compressor 3 17__ compressor 4 ae n Oo zZ W OV OB Co IN Fig 3 b b 3 2 3 Two circuits 1 condenser fan circuit Key condenser fan overload fan condernser probe 1 and 2 supply probe electrical heater 1 e 2 evaporator 1 e2 supply fan overload supply fan compressor 1 10 high pressure 1 and 2 11 _ compressor overload 1 and 2 12 low pressure 1 and 2 13 ambient probe 14__ compressor 2 15 reversing valve land 2 16 compressor 3 17__ compressor 4 WlOINID W A WIN Fig 3 b c 12 UCSE 030220426 rel 2 1 09 06 2010 3 3 AIR WATER chiller 3 3 1 Single circuit ac n Key 1 condernser fan overload za 2__ fan LU 3 condenser probe 4 _ flow switch 5 outlet evaporator probe 6 fan 7 antifreeze heater 8 inlet evaporator probe 9 compressor 1 10__ high pressure 11__ compressor overload 12__ low pressure 13 _ water pump 14 compressor 2 PS m x condenser fan overload 1 and 2 fan 1 and 2 condenser probe 1 and 2 flow switch outlet temperature probe evaporator 1 and 2 outlet evaporator probe 1 and 2 antefreeze heater 1 and 2 9 compressor 1 10 hig
41. 3 remote ON OFF 24 Comp 25 Comp 26 Comp alarm3 27 Comp alarm4 alarmi alarm2 PO9 Digital input 2 selection F 0 27 Int 0 70 R W 1277 nteger P10 Digital input 6 selection F 0 27 Int 0 X 71 R W 278 nteger P11 Digital input 7 selection F 0 27 Int 0 X 72 R W 279 nteger P12 Digital input 10 selection F 0 27 Int 0 X 73 R W 280 nteger P13 Configuration of B4 as P8 if 4 1 digital input F 0 27 Int 0 74 R W 281 nteger P14 Configuration of B8 as 8 1 digital input F 0 27 Int 0 X 75 R W 282 nteger P15 Select low pressure alarm F 0 Flag 0 76 R W 283 nteger 0 not active with compressor OFF 1 active with compressor OFF P16 High temperature alarm set U 400 760 C F 10 800 38 R W 38 Analog P17 High temperature alarm delay at start up U 0 250 s 30 E 77 R W 284 nteger P18 High pressure alarm set from transducer F P33 999 Dbar _ 0 1 200 P 39 R W 139 Analog P19 System low temperature alarm set point U 400 760 C F 10 1 100 40 R W 40 Analog P20 Enable system start up protection U 0 Flag 0 F 20 R W 20 Digital 0 Disabled 1 Enabled P21 Alarm relay output logic F 0 0 8 R W 8 Digital 0 normally de activated 1 normally activated P22 Low pressure alarm delay at start up U 0 200 5 40 86 R W 1293 nteger Compressor in heat pump P23 Low pressure alarm delay at compressor start up in defrost U 0 999 s 40 87 R W 294 nteger P24 Deactivate compressors with HP and LP capacity control D 0
42. 8 R 8 Analog b18 Driver 2 valve position D 0 1000 E 0 XV 9 R 9 Analog b19 Temp probe at the outlet of the external coil c1 D 0 0 C PF 0 V 20 R 20 Analog b20 Temp probe at the outlet of the external coil c12 D 0 0 C PF 0 XV 21 R 21 Analog b21 Terminal probe for AD terminal D 400 800 C F 0 1 0 28 R W 128 Analog Table 4 d 4 3 5 Compressor setting parameters c display parameter and description default min max U O M variat def visib supervis Modbus variabile indicat evel variable ype c01 inimum on time U 0 999 s 60 25 R W 232 nteger c02 inimum off time U 0 999 s 60 26 R W 233 nteger c03 Delay between 2 starts of the same compressor U 0 999 s 360 27 R W 234 nteger c04 Delay between starts of the 2 compressors U 0 999 js 10 28 R W 235 nteger c05 Delay between 2 shut downs of the 2 compressors U 0 999 js 0 29 R W 236 nteger c06 Delay at start up U 0 999 s 0 30 R W 237 nteger c07 Delay in switching on the compressor after switching on the U 0 999 js 20 31 R W 238 nteger pump inlet fan air air c08 Delay in switching OFF the compressor after switching OFF the U 0 150 min 1 32 R W 239 nteger pump inlet fan air air c09 aximum compressor operating time in tandem U 0 60 min 0 33 R W 240 nteger c10 Compressor 1 timer D 0 8000 100 hours 0 22 R 122 Analog cll Compressor 2 timer D 0 8000 100 hours 0 23 R 123 Analog c12 Compressor 3 timer D 0 8000 100 hours
43. 9 Analog Condenser antifreeze alarm set point Start defrosting pressure U 11 d04 Dbar 0 1 35 DP 18 R W 18 Analog Condenser antifreeze alarm set point d04 End defrost temperature U d03 12 Dbar 0 1 140 DP 20 R W 120 Analog End defrost pressure d03 11760 C F 0 1 200 DN 21 R W 21 Analog d05 Min time to start a defrosting cycle U 10 150 s 1 10 D 37 R W 244 Integer d06 Min duration of a defrosting cycle U 0 150 s 1 0 D 38 R W 1245 Integer do7 Max duration of a defrosting cycle U 1 150 min 1 5 D 39 R W 1246 Integer d08 Delay between 2 defrosting cycle requests within the same U 10 150 min 1 30 D 40 R W 247 Integer circuit do9 Defrosting delay between the 2 circuits U 0 150 min 1 10 D 41 R W 248 Integer d10 Defrost by external contact F 0 3 Flag 1 0 D 42 R W 249 Integer 0 disables function 1 external contact start 2 external contact end 3 external contact start and end d11 Antifreeze heater in defrost U 0 1 Flag 0 D 9 R W 9 Digital d12 Waiting time before defrosting F 0 3 min 0 D 43 R W 250 nteger d13 Waiting time after defrosting F 0 3 min 0 D 44 R W 251 nteger d14 End defrosting with 2 refrigerating circuits F 0 2 Flag 0 D 45 R W 252 nteger 0 Indipenden 1 If both at end defrost 2 If at least one at end defrost d15 Start defrost with 2 circuits F 0 2 Int 0 D 46 R W 253 nteger 0 Indipenden 1 If both at start defrost 2 If at least one at start defrost d16 Forced ventilation time at the end of the
44. AL SPECIFICATIONS AND SOFTWARE UPDATES 10 1 Technical SPECIAL OMS isese eE 102 Software UCAS asss nunaa EGR UCSE 030220426 rel 2 1 09 06 2010 58 62 62 63 63 64 7 6 PWM to 0 to 10Vdc or 4 to 20 mA conversion board for fans code CONVO 10A0 65 66 66 67 69 69 69 70 ENGLISH I n O Zz Ww 6 uC SE 030220426 rel 2 1 09 06 2010 1 INTRODUCTION 1 1 General description The uC SE is a new compact CAREL electronic controller the same size as a normal thermostat for the complete management of chillers and heat pumps it can control air air air water water water and condensing units ae n O zZ LL 1 1 1 Main functions control of the water inlet and evaporator outlet temperature defrost management by time and or by temperature or pressure fan speed control complete alarm management connection to serial line for supervision telemaintenance elimination of the expansion vessel Driver function Management of electronic expansion valves 1 1 2 Controlled devices compressor condenser fans reversing valve water pumps for evaporator and or condenser and outlet fan air air antifreeze heater alarm signal device 1 1 3 Programming CAREL offers the possibility to configure all the unit parameters not only from the keypad on the front panel but also using a hardware key a serial line 1 2 User interface 1 2 1 Display The display featur
45. B4 B7 B7 B8 11 Cooling only air air unit with electric B1 B2 low outlet B3 B4 ot used B7 B8 heating emperature Table 5 a Min max voltage and pressure values From 09 to 12 sets the minimum maximum voltage and pressure for the ratiometric signal Probe calibration From 13 to 20 calibrates the corresponding sensor from B1 to B8 Digital filter 21 Establishes the coefficient used in the digital filtering of the value measured High values for this parameter will eliminate any continuous disturbance at the analogue inputs however decrease the promptness of measurement The recommended value is 4 default Input limit 22 Establishes the maximum variation that can be measured by the probes in one unit program cycle in practice the maximum variations allowed in the measurement are between 0 1 and 1 5 units bars C or F depending on the probe and the unit of measure approximately every one second Low values for this parameter will limit the effect of impulsive disturbance Recommended value 8 default Unit of measure 23 Selects the unit of measure as degrees centigrade or Fahrenheit When the parameter is modified the HCSE automatically converts the values read by the NTC temperature probes B1 B2 B3 into the new unit of measure while all the other parameters set set point differential etc remain unchanged Antifreeze auxiliary heater parameters A Antifreeze alarm set point outlet li
46. NTC Out Probe 3 ratiometric cond Probe 5 Vdc 4 differential control probe 05 Probe type B5 0 not present F 0 1 Flag 1 0 X 3 R W 3 Digital 1 present 06 Probe type B6 0 not present F 0 1 Flag 1 0 X 4 R W 4 Digital 1 present 07 Probe type B7 0 not present F 0 2 int 1 0 X 16 R W 223 Integer 1 NTC Cond Probe 2 NTC Out Probe 3 differential control probe 08 Probe type B8 0 not present F 0 3 int 1 0 X 17 R W 224 Integer expansion 1 ON OFF 2 NTC Out Probe 3 ratiometric cond Probe 5 Vdc 4 differential control probe NB if more than one differential control probe is configured the priority is B8 B7 B4 B3 09 in value voltage input F 0 10 001Vdc 1 50 P 18 R W 225 Integer 10 ax value voltage input F 09 500 _ 0 01 Vdc 1 450 P 19 R W 226 Integer 11 Pressure min value F 0 12 bar 1 0 P 1 RW 1 Analog 12 Pressure max value F 11 999 bar 1 34 5 P 2 RW 2 Analog 13 Probe B1 calibration F 12 0 120 C F 0 1 0 0 3 RW 3 Analog 14 Probe B2 calibration F 12 0 120 C F 0 1 0 0 4 R W 4 Analog 15 Probe B3 calibration F 12 0 120 C F 0 1 0 0 5 RW 5 Analog 16 Probe B4 calibration F 12 0 120 C bar F 0 1 0 0 6 R W 6 Analog 17 Probe B5 calibration F 12 0 120 C F 0 1 0 0 X 7 R W 7 Analog 18 Probe B6 calibration
47. R EVD 2 warning Digital E51 EVD 1 probe error Automatic OFF C1 2 OFF ON 43 R EVD 1 warning Digital ES2 EVD 2 probe error Automatic OFF C3 4 OFF E S Ol 2 R EVD 2 warning Digital EU Open valve EVD 1 error at the Automatic OFF C1 2 OF Ol 43 R EVD 1 warning Digital start up EU2 Open valve EVD 2 error at the Automatic OFF C3 4 OFF Ol R EVD 2 warning Digital start up Eb EVD 1 battery alarm Automatic OFF C1 2 z OF 5 ON 43 R _ EVD 1 warning Digital Eb2 EVD 2 battery alarm Automatic OFF C3 4 OF Ol 44 R EVD 2 warning Digital L Low load warning Automatic Signal on display Ed tLan EVD 1 communication error _ Automatic OFF C1 2 OF ON 43 R EVD 1 warning Digital Ed2 tLan EVD 2 communication error _ Automatic OFF C3 4 OF O 44 R EVD 2 warning Digital PH1 Low pressure circ 1 warning Signal on display PH2 Low pressure circ 2 warning E Signal on display SUL Low outlet temperature warning Signal on display CP1 compressor 1 alarm Automatic OFF C1 O 25 R Compr error alarm Digital CP2 compressor 2 alarm Automatic OFF C2 O 25 R Compr error alarm Digital CP3 compressor 3 alarm Automatic OFF C3 O 25 R Compr error alarm Digital CP4 compressor 4 alarm Automatic OFF C4 O 25 R _ Compr error alarm Digital Table 6 a Note The warning relay differs from the alarm relay as it i
48. Serial Communication alarm with EVD 4 flashes Serial communication alarm with CSE Table 7 c The alarms are displayed in sequence and are separated from each other by pauses 7 3 EVD4 Electronic expansion valve driver This device is used to control electronic expansion valves The device is connected to the uC SE via a tLAN serial line The condensing pressure probe must be connected to the HC SE which then sends the reading to the driver o Nota for all other information on the connections refer to the EVD4 driver manual PHOENIX 1 eno 2 out no PHOENIX MC1 5 3 ST 3 81 GMSTB 2 5 2 ST me ERREEEEE lt FCSER00000 MOLEX Mini Fit LG voal Di sav s3 s2 s1 A MOLEX Mini Fit 538 39 01 2060 H C 2 538 39 01 2140 sal vr Fig 7 c uC SE 030220426 rel 2 1 09 06 2010 63 Ea diii diiil erai iii iris ENGLISH ae n O zZ W LOAD eo eo le LINE eo eo 220 Vac Fig 7 d to uchiller 24 Vac Y GND OO O00 1234 On Oe 5 6 O0 No Com Ne Fig 7 e to chiller 24 Vac y GND LR E 1234 SORES OOOO GO 0 10V GO 420mA Fig 7 f LOAD LINE en e eo
49. W00 for built in assembly Fig 7 1 For further information see the instruction sheet 050001065 yAD UAD is the UC2SE room terminal This terminal fitted with built in temperature and humidity probes controls the temperature humidity conditions in the environment where its is installed interacting with the units controlled by the HC2SE The AD can be used to set time bands the temperature and humidity set point switch the system on off and change operating mode simply and intuitively Product code ADMA001000 with NTC probe ADMB001010 with NTC probe RTC and buzzer ADMG001010 with NTC and humidity probe RTC and buzzer ADMH001010 with NTC and humidity probe RTC buzzer and backlighting For further information see the instruction sheet 05000750 and the manual 030220465 HAM HAM is the Area controller compatible with the HC2SE This can control up to 10 fan coils fitted with the e droFAN electronic controller By analysing the temperature humidity conditions in the different rooms HAM optimises the temperature of the water produced by the chiller HP improving power consumption performance and comfort In addition the LAM centralises the data such as set point heat cool mode and on off for the individual fan coil and the entire system including time bands Product code ADEC001010 with NTC probe RTC buzzer and backlighting ADEH001010 cwith NTC and humidity probe RTC buzzer and backlighting F
50. _ 0 3 52 R W 152 Analog r19 Start compensation temperature in cooling mode U 400 1760 C F_ 0 300 53 R W 53 Analog r20 Start compensation temperature in heating mode U 400 1760 C F 0 0 E 54 R W 54 Analog r21 Second cooling set point from external contact D r13 r14 C F 10 120 55 R W 155 Analog r22 Second heating set point from external contact D a5 q6 C F 0 400 56 R W 156 Analog 123 Select automatic changeover probe D 0 8 Flag 1 0 84 R W 1291 Integer r24 Automatic changeover set point D a5 rl6 C F 0 400 5 61 R W 61 Analog r25 Outside temp set point to stop compressors D 400 800 C F _ 0 400 65 R W 165 Analog r26 Cooling set point in dehumidification D r13 q4 CF O 120 3 66 R W 166 Analog r27 Enable accumulation vessel suppression F 0 3 Flag 1 0 88 R W 1295 Integer 0 Disabled 1 Enabled in cool 2 Enabled in Heat 3 Always enabled r28 Min compressor running time for low load damper travel time F 0 999 Js 1 60 89 R W 296 Integer r29 Chiller low load differential freecooling differential F 10 500 PCCE 0 1 30 58 R W 58 Analog r30 Heat pump low load differential freeheating differential F 10 500 C F__ 0 1 30 59 R W 159 Analog r31 Heating compensation constant U 50 50 0 1 0 60 R W 60 Analog r32 Hot Start set point D r15 r16 CGF JON 120 71 R W 71 Analog r33 Hot Start differential F 3 500 PCF 01 30 72 R W 72 Analog r34 Enable Freecooling Freeheatin
51. activate boiler output bit7 0 process mode active 1 process mode disabled Signals to the uAD D 0 255 0 136 R 343 Integer bit0 cool heat request from uAD in progress bit1 cool heat request accepted from pAD 1 cooling 0 heating bit2 start fans bit3 alarm active on CH bit4 RTC available on UCH2 SE ENGLISH DTE value saved in EEPROM D 0 0 0 98 R 98 Analog Internal set point compensated in the event of D 0 0 0 97 R 97 Analog autotuning Ambient set point from AD D 400 1760 0 1 0 95 R W 95 Analog Set point variation from LAM uedronic D 100 100 0 1 0 96 R W 96 Analog Differential for the ambient set point D 100 100 0 1 0 94 R W 94 Analog Controls by the AD from save D 0 32767 1 0 137 R W 344 Integer Active alarm signal D 0 32767 1 0 128 R W 335 Integer bitO probe alarm E1 E2 E E4 E5 E6 E7 E8 biti high pressure alarm HP1 HP2 bit2 low pressure alarm LP1 LP2 bit3 flow switch alarm FL bit4 expansion communication alarm ESP bit5 EE2PROM alarm EPB bit6 antifreeze alarm A1 A2 bit7 thermal overload alarm TP TP1 TP2 bit8 hour counter alarm H1 H2 H H4 Terminal humidity probe per terminal HAD D 0 1000 0 1 0 129 R W 129 Analog Reset alarms D 0 1 1 0 78 R W 78 Digital Digital input B D 0 1 0 79 R 79 D
52. an start c17 The diagram below shows an example of the operation of the pump and with burst active when H05 3 see parameter H05 The dashed areas on the compressor line indicate the pump compressor and compressor pump delay times Burst mode is disabled in standby and during an alarm when the pump is OFF At power ON the delay c17 must elapse before burst can start Minimum pump fan ON time c18 This represents the minimum time that the pump remains ON for see Fig 5 i active with HO5 3 see parameter H05 Delay between valve and compressor c19 Represents the delay to ensure the valve opening before the compressor starts This parameter is only available when EVD is connected e Defrost settings parameters d The defrost has priority over the compressor times r 1 M rl For the defrost function the compressors times are ignored with the exception of C04 see C04 i i i description for the exceptions Key C18 C17 C18 C17 bora C17 C18 C17 1 compressor ai 2 pump 3 burst Fig 5 a j Enable condenser defrost antifreeze d01 For heat pumps with air cooled condensers H01 1 3 8 this establishes whether defrost control must be performed on the outdoor exchanger evaporator in heating mode On the other hand for water water heat pumps with reversal on the gas circuit HO1 5 10 it enables antifreeze control on the coo
53. ate ON if the expansion card is not present U EVD 1 EVD400 connected to uC SE 1st circ Z EVD 2 EVD400 connected to the expansion 2nd circ i alarm jalarm type resetting Compressor pump fan heater Valve alarm warning superv superv variab variab display variable description type HP1 High pressure Depends on P05 OFF C1 2 ON 60 ON AT R Circuit 1 alarm Digital HP2 High pressure Depends on P05 OFF C3 4 ON 60 ON 42 R Circuit 2 alarm Digital LP1 Low pressure Depends on P05 OFF C1 2 OFF 1 ON 41 R Circuit 1 alarm Digital LP2 Low pressure Depends on P05 OFF C3 4 OFF 2 ON 42 R Circuit 2 alarm Digital PL1 Capacity control for low pressure Automatic OFF C2 5 ON Signal on display circuit 1 PL2 Capacity control for low pressure Automatic OFF C4 7 s s ON Signal on display circuit 2 TP General overload Depends on P08 OFF OFF OFF a O 45 R _ General warning Digita tC1 Circuit 1 overload Depends on P08 OFF C1 2 OFF 1 O 41 R Circuit 1 alarm Digita tC2 Circuit 2 overload Depends on P08 OFF C3 4 OFF 2 O 42 R Circuit 2 alarm Digita LA advice Depends on P08 ON ON 50 R General advice Digita FL Flow controller alarm Depends on P08 OFF OFF OFF O 45 R General alarm Digita FLb Backup pump warning Automatic ON 50 R General advice Digita E1 Probe B1 alarm Automatic OFF OFF OFF OF O 46 R Probe alarm Dig
54. ater 1 reversing valve 1 reversing valve 1 heater 1 C3 Pump evaporator fan on Pump evaporator fan on Pump evaporator fan on Pump evaporator fan on evaporator pump Pump evaporator fan on air air units air air units air air units air air units air air units C4 reversing valve 1 Compressor 2 or capacity Compressor 2 or capacity Compressor 2 or capacity Compressor 2 or capacity condenser fan 1 control comp 1 control comp 1 control comp 1 control comp 1 C5 alarm alarm reversing valve 1 alarm alarm alarm C6 compressor 2 compressor 3 compressor 3 compressor 3 not used compressor 2 C7 heater 2 heater 2 heater 2 reversing valve 2 heater 1 heater 2 C8 Condenser pump backup Condenser pump backup Condenser pump backup Condenser pump backup Condenser pump backup Condenser pump backup C9 reversing valve 2 Compressor 4 or capacity Compressor 4 or capacity Compressor 4 or capacity not used condenser fan 2 control comp 2 control comp 2 control comp 2 C10 Warning Warning reversing valve 2 Warning Warning Warning associated device outputs H11 6 H11 7 H11 8 H11 9 H11 10 H11 11 H11 12 C1 compressor 1 compressor 1 compressor 1 compressor 1 compressor 1 compressor 1 compressor 1 C2 1 step heater 1 step heater 1 step heater compressor 2 compressor 2 compressor 2 P25 C3 outlet fan outlet fan outlet fan outlet fan outlet fan outlet fan P26 C4 reversing valve 1 2 step heater condenser fan 1 reversing valve 1 heating s
55. ave PTI2250 V materials Software class and structure A Period of electric stress across insulating parts Long Homologations CE RU File E198839 sez 16 Table10 a o Nota all the relays must have the common terminals C1 2 C3 4 C6 7 C8 9 connected together UCSE 030220426 rel 2 1 09 06 2010 69 300 x LU 200 pe 120 Vac ATA a SN ER 250 Vac 30 Va AN A fac 30V c nn VAS AC 120 V cosg 0 7 5 Ns 30 APS INNO AC 250 V cos 0 7 Z F T NN Oo s Sie 10 ET S gt NS F 3ovdc SNS E 5 TE 2 3 120 Vac cosa 04 2 250 Vac cos 0 4 130 Vdc 1 mL gt t 1 0 1 2 3 4 5 current on contacts A Fig 10 a I n O Zz Ww Functional characteristics Resolution of the analogue inputs Temperature probes range 40T80 C 0 1 C Temperature measurement error Range 20120 C 0 5 C excluding probe Range 40T80 C 1 5 C excluding probe Pressure measurement error The error with a voltage reading with a range of input from 0 5 to 4 5 is 2 excluding probe The error in the converted value may vary according to the settings of parameters 9 10 11 12 Table 10 b Characteristics of the connectors The connectors may be purchased using CAREL code MCHCONO or from the manufacturer Molex Molex codes of the connector Number of pi
56. can be selected see Table 5 11 Any of the options for P08 can be selected except for E I and F I delay 62 uC SE 030220426 rel 2 1 09 06 2010 7 2 Expansion card This device allows the UCSE to manage the second refrigerant circuit on chillers heat pumps and condensing units with up to 4 hermetic compressors The following figure shows the connection diagram for the uC SE expansion card code MCH200002 EV Driver uc w LEA multi multi multi multi RES funct funct funct funct d 8 9 x fae 8 9 x No1o Tx Rx GND uc Top Expansion board GND Tx Rx GND B8 V al Hin 32 3 ej a S S gl Sl pressure 8 3 P probe to K temperature probe a digital 4 L input E 400 2 eH E55 uc Fig 7 b NOTE The expansion features two LEDs on the main board to see these remove the top or bottom door which display its status by the following messages ON Flashing green LED Board powered Board powered and serial communication with HC SE in progress red LED 1 flash Probe fault alarm 2 flashes Zero crossing alarm mains frequency not detected 3 flashes
57. ching over the pumps when activated again the FL alarm will replace FLb E1 to E8 probe error detected even when the unit is in Standby The presence of a probe alarm causes the deactivation of the compressor the condenser fans the pump outlet fan in AIR AIR units and the heaters so as to avoid fires in the air air units the buzzer and alarm relay are activated and the display starts flashing If the probe has a compensation function the unit will continue a operate correctly with the exception of the corresponding function and the warning relay will be activated and a message shown on the display from E1 to E8 for probes from B1 to B8 uC SE 030220426 rel 2 1 09 06 2010 59 ENGLISH ae n O zZ W 60 Hc1 to Hc4 compressor operating hour limit exceeded warning When the number of operating hours for the compressor exceeds the maintenance threshold as default equal to zero and consequently the function is disabled the maintenance request signal is activated The buzzer and the alarm relay are not activated however the warning relay is activated with the expansion card fitted Epr EPb EEPROM error A problem has occurred when saving the parameters to the unit s non volatile memory EEPROM in the event of an Epr error the UC SE continues to perform the control functions with the data present in the volatile memory RAM where there is a physical copy of all of the data After the first power fail
58. compressor Starts so as to allow stable operating conditions to be reached This delay is also counted when reversing the 4 way valve in the refrigerant circuit Part load in high pressure and low pressure in heat pump P04 enable or disable the part load operation of the circuit in high pressure The function is valid if the unit is fitted with tandem or capacity controlled compressors and pressure transducers In the event of high pressure alarms that is for values over P18 hysteresis 0 5 bar the controller deactivates a load step in the circuit in question and waits 10 seconds After this interval if the alarm is still active the unit is stopped otherwise it continues to operate in part load mode In this situation the display shows the message PH1 and or PH2 depending on the circuit This condition remains active until the pressure falls below the value corresponding to the maximum speed of the condenser fans F05 F06 Below this value the unit reactivates the load step that had previously been deactivated P04 0 capacity control not activated P04 1 capacity control activated for high pressure P04 2 capacity control activated for low pressure P04 3 capacity control activated for high and low pressure With the unit operating in heat pump mode due to low outside temperatures or the load the pressure may fall and stop the unit due to the low pressure alarm If the circuit has 2 compressor steps and the pressure remains bel
59. control boards are sued code MCHRTF it must be stressed that if the ON OFF modules code CONVONOFFO or alternatively the PWM to 0 to 10 V converters code CONVO 10A0 are used parameter F03 should be set to zero and parameter F04 to the maximum value Given the different types of motors existing on the market the user must be able to set the voltages supplied by the electronic board corresponding to the minimum and maximum speeds In this regard and if the default values are not suitable proceed as follows set parameter F02 3 and set F03 and F04 to zero the condenser control set point evaporator in HP mode has been modified to take the output signal to the maximum value PWM increase F04 until the fan operates at a sufficient speed make sure that after having stopped it it can rotate freely when released copy this value to parameter F03 this sets the voltage for the minimum speed connect a voltmeter set for AC 250V between the two L terminals the two external contacts increase F04 until the voltage stabilises at around 2 Vac inductive motors or 1 6 1 7 Vac capacitive motors Once the value has been found it will be evident that even when increasing F04 the voltage no longer decreases In any case do not increase F04 further so as to avoid damaging the motor restore the correct condenser set point evaporator in HP mode The operation is now completed MCSE 030220426 rel 2
60. cuit 1 and disables the corresponding fans Eb2 EVD 2 battery alarm The EVD 2 battery alarm stops the compressors from starting so as to avoid the risk of liquid returning to circuit 2 and disables the corresponding fans uC SE 030220426 rel 2 1 09 06 2010 61 ENGLISH I n O Zz Ww Panel version 7 1 Connection diagram Below is the connection diagram for the UC SE EV Driver E 1 0 layout UCSE cond probe board tLAN H faciet fone fine Expansion ue us EV Driver f C TwRx GND outlet probe inlet probe Le probe To program key RS485 digital option L__ imput N L Line To serial link Fig 7 a Description B1 Control probe Evaporator inlet ambient B2 Protection probe evaporator outlet outlet B3 Condenser outside temperature probe B4 universal Condenser pressure probe D1 Flow switch thermal overload circuit 1 cooling heating end defrost circuit 1 step 1 condensing unit second set point D2 Flow switch thermal overload 1 circuit cooling heating e
61. day Start month End hours End minutes End day End month The log is accessed by pressing PRG SEL for 5s and entering the password 44 The alarms saved are complete as they include both the start and end of the event ENGLISH The alarms can be deleted individually by pressing UP and DOWN for 5s when the desired event is displayed If there are no alarms saved noH is displayed The table shows the possible alarms that can be saved SV Display Type SV Display Type SV Display Type All Circ 1 HP1 High pressure circuit 1 All Sonde E5 Probe B5 alarm All Evd 1 EP1 EEPROM error EVD 1 All Circ 2 HP2 High pressure circuit 2 All Sonde E6 Probe B6 alarm All Evd 2 EP2 EEPROM error EVD 2 All Circ 1 LP1 Low pressure circuit 1 All Sonde E7 Probe B7 alarm7 All Evd 1 ES1 Probe error EVD 1 All Circ 2 LP2 Low pressure circuit 2 All Sonde ES Probe B8 alarm All Evd 2 ES2 Probe error EVD 2 All Gen TP General thermal overload All Gen ESP Expansion error All Evd 1 EU1 Valve open error EVD 1 start All Circ 1 C1 Thermal overload circuit 1 All Circ 1 Al Frost alarm circ 1 All Evd 2 EU2 Valve open error EVD 2 start All cir 2 C2 Thermal overload circuit 2 All Circ 2 A2 Frost alarm circ 2 All Evd 1 Eb1 EVD 1 battery alarm All Gen FL Flow switch alarm All Gen EHS High power supply vo
62. defrosting F 0 360 s 0 D 47 R W 1254 nteger d17 Set enable light defrost F 0 800 C F 0 1 0 D 22 R W 22 Analog d18 Max outside temperature sliding defrost F 400 800 C F 0 1 100 D 62 R W 62 Analog d19 Start defrost differential sliding defrost F 400 800 C F bar_ 0 1 30 D 63 R W 163 Analog d20 Outside temperature differential sliding defrost F 10 0 800 C F 0 1 100 D 64 R W 64 Analog Table 4 f 4 3 7 Fan setting parameters F display parameter and description default min max U O M variat def visibility supervis Modbus variable indicat level variable type F01 Enable Fan output F 0 1 Flag 1 0 10 R W 10 Digital O not present 1 present FO2 Fan operating mode U 0 3 Int 1 0 F 48 R W 255 Integer 0 always ON 1 depending ON the compressor in parallel operation mode 2 depending ON the compressors in ON OFF control 3 depending ON the compressors in speed control mode F03 Min voltage threshold for Triac F 0 F04 step 1 35 F 49 R W 256 Integer F04 Max voltage threshold for Triac F F03 100 step 1 75 F 50 R W 257 Integer F05 Speed temp set point in Cooling mode U 400 1760 C F 0 350 F 24 R W 24 Analog Pressure value for min speed Cooling U VAR 12 Dbar 0 130 FP 23 R W 23 Analog F06 Differential value for max speed Cooling U 0 500 CF 0 100 F 26 R W 26 Analog Pressure value for max speed Cooling U 0 300 Dbar 0 30 FP 25 R W 25 Analog FO7 Fan shut down differential in Cooling mode
63. e and to set the password page 25 and confirm by pressing Sel 4 use and to select the parameter menu S P or levels L P and then press sel 5 use K and to select the parameter group and then press Sel 6 use K and to select the parameter and then press Sel 7 after making the changes to the parameter press sel to confirm or 22 to cancel the changes 8 press 2 to return to the previous menu 9 to save the modifications press 22 repeatedly until reaching the main menu Note a the parameters that have been modified without being confirmed using the sel button return to the previous value b if no operations are performed on the keypad for 60 seconds the controller exits the parameter modification menu by timeout and the changes are cancelled 1 2 5 Keypad The keypad is used to set the unit operating values see Parameters alarms Keypad combinations 8 uC SE 030220426 rel 2 1 09 06 2010 2 CONNECTIONS 2 1 General diagram T n tLAN lt z l EVD 40 driver mcH200002 p Evpraoe U for electroni 10 driver for ce EV ariver Expansion yC expansion ev arver electronic Lu valve gt board for expansion Optional board _ PSE valve
64. e and capacity control normally de energised Default value H12 2 4 way reversing valve normally de energised and capacity control normally energised H12 3 4 way reversing valve normally energised and capacity control normally de energised Note in the event of capacity control the rotation between compressor and corresponding valve is disabled FIFO or time logic can be used between the 2 circuits to optimise the starts or the operating hours of the 2 compressors 1 per circuit Enable pump down H13 This function allows the unit to be stopped while avoiding the possible formation of liquid refrigerant inside the evaporator When the only active compressor is called to stop the expansion valve is closed so as to depressurise the circuit Valid only when the driver is installed as the driver pressure probe is used Minimum pumpdown pressure H14 Limit pressure below which the compressor is deactivated Maximum pumpdown time H15 Maximum time after which the compressor is deactivated SmartSET CAREL patent cannot be used on air air units H16 Activate smartSET this function optimises the operation of the unit by calculating the efficiency of the heat exchangers In smartSET mode the following values are saved Only when R06 0 or 4 DTE difference between evaporator inlet temperature B1 and outlet temperature B2 B5 calculated at full load all compressors on when reaching the user set point Saved
65. e serial connection via an optional board to a PC for supervision and or telemaintenance Selection map outputs H11 This parameter is used to arbitrarily associate some digital outputs to the devices on the unit H11 0 standard default for units with one compressor per circuit HO4 0 2 H11 1 For cooling only units with two compressors H01 0 2 4 7 9 and H04 1 3 5 H11 2 The outputs of the expansion follow the same logic for the 2nd circuit For HO1 1 3 5 6 8 10 and H04 1 3 5 H11 3 The outputs of the expansion follow the same logic for the 2nd circuit For HO1 1 3 5 6 8 10 and H04 1 3 5 H11 4 For H01 1 3 5 6 8 10 and H04 0 1 H11 5 For cooling only units with two compressors H01 0 2 4 7 9 and H04 0 H11 6 1 compressor per circuit heat pump H11 7 1 compressor per circuit cooling only solution 1 H11 8 1 compressor per circuit cooling only solution 2 H11 9 2 compressors per circuit heat pump H11 10 2 compressors per circuit cooling only solution 1 H11 11 2 compressors per circuit cooling only solution 2 uC SE 030220426 rel 2 1 09 06 2010 45 ENGLISH ae n O Zz Ww H11 12 associated device outputs H11 0 H11 1 H11 2 H11 3 H11 4 H11 5 Cl compressor 1 compressor 1 compressor 1 compressor 1 compressor 1 compressor 1 C2 heater 1 heater 1 he
66. e unit type number of compressors must be performed with the controller in Standby 4 2 Menu structure Save eetegPBOM or parameter values parameters F r t parameters clock settings parameters r regulation parameters P alarm ae n O zZ LL level level name password d_ direct no password U_ user 22 S_ super user 11 F factory 66 main menu And For 5 software NE parameter level arameters A ntifreeze parameters b probes parameters c compressor parameters H unit setting C s dpe d parameter values F1 uC SE 030220426 rel 2 1 09 06 2010 parameters Fn Fig 4 a 25 ji H si a kal LA arameters D BBC Fra E a i ON ee FR defrost FA Eal e Bf 5 p fan e Eko 2 Parameters F1 level value F1 4 3 Parameter tables The following tables show of the parameters divided by type family e g compressor probes fans etc e Key to the parameter tables Level default S super user F factory D direct ae n UO Zz Ww Visibility The visibility of some groups dep
67. e when freecooling heating is enabled When the sum of the opening times reaches 2 damper travel time the damper is no longer moved The sum is reset when the damper is closing Operation is the same in closing Differential during the low load condition in chiller mode r29 This parameter represents the new differential considered by the controller in chiller mode during the low load condition Specifically r02 is replaced by r29 This also has the meaning of freecooling differential Differential during the low load condition in heat pump mode r30 This parameter represents the new differential considered by the controller in heat pump mode during the low load condition Specifically r04 is replaced by r30 This also has the meaning of freeheating differential on 1 i on f roi roi r02 G on a r01 r29 Fig 5 b m on 7 T on 7 T off lt lt off lt lt r03 r04 r03 r03 r30 r03 Fig 5 b n Heating compensation constant mode Heat pump r31 Sets the coefficient that controls the heating compensation algorithm In heating mode if r31 is positive the set point decreases as the outside temperature decreases measured by the outside probe if on the other hand r31 is negative the set point increases as the outside temperature decreases This maximum deviation of the set point from the set value is equal to parameter r18 See for example
68. ends on the type of controller and the value of the parameters D defrost if D01 1 F fan if FO1 1 L low noise if F15 1 3 N NTC probe if 04 08 2 P pressure if 04 08 3 V driver if HO8 1 3 4 X expansion if HO8 2 3 4 M pump down if D17 1 W watch if the clock board is fitted always present Supervisor variables R W supervisor read write parameter R supervisor read only parameter 4 3 1 Evaporator and condenser temperature and pressure values d display parameter and description default min max UOM variat default visibility supervis Modbus _ variable indicat level variable type dtE Current value of DTE D 0 0 0 99 R 99 Analog dc Current value of DTC1 D 0 0 0 100 R 100 Analog dc2 Current value of DTC2 D 0 0 0 101 R 101 Analog Tab 4 a 4 3 2 Probe setting parameters display parameter and description default min max UOM variat default visibility supervis Modbus variable indicat level variable ype 01 Probe type B1 0 not present F 0 1 Flag 1 1 S 1 R W 1 Digital 1 present 02 Probe type B2 0 not present F 0 1 Flag 1 0 S 2 R W 2 Digital 1 present 03 Probe type B3 0 not present F 0 3 int 1 0 14 R W 221 nteger 1 NTC Cond Probe 2 NTC Out Probe 3 differential control probe 04 Probe type B4 0 not present F 0 4 int 1 0 15 R W 222 nteger 1 ON OFF D I 2
69. equired the second step will be deactivated first and then the compressor There is no rotation between the compressor and the valve If extra capacity is required the second circuit will start with compressor 2 and then if required the valve is operated When stopping the valve is managed first and then the actual compressor as a whole Both FIFO logic and timed operation will involve either one circuit or the other The activation and deactivation of the valves are not subject to timers but rather only a hysteresis that is equal to the set point and the differential of the step in fact the valve performs the same function as a hermetic compressor r05 3 direct correspondence between the digital inputs and the compressor relays condensing units only ENGLISH Type of compressor control r06 This parameter is used to set the logic for maintaining the set point T T i r06 0 proportional on inlet ON i r06 1 proportional on inlet dead zone see Dead zone below i i r06 2 proportional on outle Der ES r06 3 proportional on outlet with dead zone i r06 4 on outlet by time with dead zone see timed outlet temperature control i gt l l DEAD ZONE i 1 The dead zone essentially shifts the proportional band from the set point by the value set for the parameter r07 This parameter is valid in i i all configurations if enabled for r07 0 dead zone set and enabled l 1 i
70. er differential A05 Differential for the activation and deactivation of the antifreeze heaters auxiliary heaters in air air units Operating diagram of the antifreeze alarm and the antifreeze heaters for air water and water water chillers and heat pumps Key antifreeze alarm differen A2 antifreeze heater differen A5 heaters antifreeze alarm antifreeze heater set point A4 antifreeze alarm set point A1 An kt pa ND Auxiliary heater probe in heating A06 This determines which probe is used for control the auxiliary heater The meaning of the parameter is the following A06 0 gt Control probe see Table 5 a a A06 1 gt Antifreeze probe see Table 5 a a If H1 1 the heaters are disabled in cooling mode See Functions of the probes Not valid if A10 2 Antifreeze alarm set point limit A07 Establishes the minimum limit for setting the antifreeze alarm set point A01 Antifreeze heater in defrost auxiliary heater in heating set point A08 Represents the threshold below which the auxiliary heater is ON in defrost and in heating mode The set point in heating is compensated according to the following equation Set_heaters heating A08 Compensated set point Set point set The antifreeze set point is not compensated In the heat pumps HO1 1 3 6 during heating mode it represents the set point for the auxiliary heater during the defrost cycle it represents the set point for the activation of
71. erload 1 and 2 low pressure land 2 ambient probe compressor 2 compressor 3 compressor 4 3 1 Air air unit 3 1 1 Single circuit l Fig 3 a a 3 1 2 Two circuits Fig 3 a b 10 uC SE 030220426 rel 2 1 09 06 2010 3 1 2 Two circuits 1 condenser fan circuit A m lt condernser fan overload fan condenser probe 1 and 2 supply probe electrical heater 1 and 2 evaporator 1 and 2 supply fan ambient probe compressor 1 10__ high pressure 1 and 2 11__ compressor overload 1 and 2 12 __ low pressure land 2 13 compressor 2 14 compressor 3 15 __ compressor 4 ENGLISH 00 JN B W IN Fig 3 a c 3 2 AIR AIR heat pum 3 2 1 Single circuit Key condernser fan overload fan condenser probe supply probe electrical heater evaporator supply fan overload supply fan compressor 1 10 high pressure 11__ compressor overload 12 low pressure 13 ambient probe 14 compressor 2 15__ reversing valve WW CON JD Mm RW IN O Fig 3 b a uOSE 030220426 rel 2 1 09 06 2010 11 3 2 2 Two circuits LS D condenser fan overload 1 and 2 fan condernser probe supply probe electrical heater 1 e 2 evaporator 1 and 2 supply fan overload supply fan compressor 1 10__ high pressure 1 e
72. es 3 digits with the display of the decimal point between 99 9 and 99 9 Outside of this range of measurement the value is automatically displayed without the decimal even if internally the unit still operates considering the decimal part In normal operation the value displayed corresponds to the temperature read by probe B1 that is the evaporator water inlet temperature for water chillers or the ambient air temperature for direct expansion units Fig 1 a show the symbols present on the display and on the keypad and their meanings 1 2 2 Symbols on the display Display with 3 green digits plus sign and decimal point amber symbols and red alarm symbols symbol colour meaning reference with LED ON with LED flashing refrigerant circuit 152 amber compressor 1 and or 2 ON start up request 1 3 amber compressor 1 and or 3 ON start up request 2 A amber at least one compressor ON 2 B amber pump air outlet fan ON start up request 2 C amber condenser fan ON 2 D amber defrost active defrost request 2 E amber heater ON 2 F red alarm active 2 G amber heat pump mode P6 0 heat pump mode request 1 2 P6 0 H amber chiller mode P6 0 chiller mode request 2 P6 0 Table 1 a UC SE 030220426 rel 2 1 09 06 2010 7 1 2 3 Functions associated with the buttons button unit status button
73. essure alarm mplemented management of minimum damper opening mplemented damper inactivity time in freecooling or freeheating mode Optimised management of damper closing for minimum outlet temperature limit mplemented alarm reset from LAD 10 2 5 Notes for version 1 6 mproved Modbus communication with supervisory system MCSE 030220426 rel 2 1 09 06 2010 10 2 6 Notes for version 1 7 Implemented second antifreeze set point A14 10 2 7 Notes for version 1 8 Improved broadcast of Modbus communication with supervisory system 10 2 8 Notes for version 1 9 Improved DO management with DC power supply ENGLISH 10 2 9 Notes for version 2 0 Implemented the option to connect uC2S expansion board and one EVD400 which increases the number of I Os available even in single circuit applications Increased the options for the parameters P25 P32 corresponding to the digital output settings function also available for the outputs on the expansion if the firmware version on the latter is 1 7 or higher Implemented a new type of alarm CP1 CP4 relating to the individual compressors Implemented a settable delay time C19 between pre opening of the electronic expansion valve by EVD400 and compressor start 10 2 10 Notes for version 2 1 Improved the set point compensation algorithm for the supplementary heater in heat pump mode 10 2 11 Notes for version 2 2 Improved integration with the LAD room terminal i
74. et by the parameter r12 Below this value the deactivation time will be equal to the minimum set until reaching the temperature A04 after which all the compressors will be switched OFF irrespective of the times As the temperature moves away from the set point the response of the process becomes more dynamic Activation time heating Fig 5 b g In heating mode the activation time will increase as the deviation from the set point increases The set point is the heating set point r03 with the corresponding differential r04 The parameters for setting the activation times are always r08 and r09 Deactivation time heating In heating mode if the temperature rises above the set point the deactivation time will decrease more the further the temperature moves away from the heating set point r03 At the end of the differential r12 the time will be the minimum set by parameter r11 Minimum Cooling set point r13 Establishes the minimum limit for setting the Cooling set point Maximum Cooling set point r14 Establishes the maximum limit for setting the Cooling set point Minimum heating set point r15 Establishes the minimum limit for setting the heating set point Maximum heating set point r16 Establishes the maximum limit for setting the heating set point Cooling compensation constant chiller mode r17 Sets the coefficient that controls the cooling compensation algorithm In cooling mode if r17 is
75. f after the time P03 5 0 P07 1 the alarm is detected only if the compressors in circuit 1 are ON and after the time P03 from when the compressors started otherwise it is immediate and if in heat pump mode is activated for pressure values less than 1 bar P15 1 PO7 1 the alarm is detected also if the compressors in circuit 1 are Off after the time P03 and if in heat pump mode is activated for pressure values lower then 1 bar The hysteresis for this alarm is 1 bar me TD LP2 Low pressure circuit 2 As for LP1 but relating to circuit 2 PL1 Capacity control for low pressure circuit 1 Indicates that circuit 1 on the unit is operating in capacity control mode due to low pressure heat pump only PL2 Capacity control for low pressure circuit 2 As for PL1 but for circuit 2 PH1 Compressor part load circuit 1 Indicates the part load of circuit 1 due to high pressure This situation is signalled by the message PH1 on the display the activation of the warning relay PH2 Compressor part load circuit 2 As for PC1 but for circuit 2 tP General thermal overload The alarm is detected irrespective of the status of the pump and the compressors The compressors the pumps and fans stop without observing the protection times or are inhibited from starting the alarm relay is activated the display flashes the corresponding message and the LED flashes It can be reset either manually or automatically see
76. ffectively no ice on the coil This can be corrected by shifting the start of the defrost proportionally to the lowering of the outside temperature This procedure can be performed based on the temperature or the pressure alone and not combined It is disabled if the outside compensation probe is not fitted or is broken It is performed based on the pressure only if both the pressure probe and temperature probe are configured Start defrost temperature pressure or condenser antifreeze alarm set point d03 For heat pumps with air cooled condensers H01 1 3 8 10 12 this sets the temperature or pressure below which the defrost cycle starts To start the defrost cycle the condition must be valid for the time d05 For water water heat pumps with reversal on the gas circuit H01 5 10 it defines the set point for the activation of the antifreeze alarm for the outdoor exchanger cooling water evaporator in heating mode on probe B3 If sliding is defrost enabled the start defrost temperature decreases starting from d03 proportionally to the outside temperature End defrost temperature pressure d04 Establishes the temperature or pressure above which the defrost cycle ends Minimum start defrost time d05 Establishes the time that temperature pressure must remain below the start defrost threshold d03 while the compressor is ON for the defrost cycle to be activated Key end defrost T P start defrostT P start defrostT end de
77. for probe 4 calibration F 0 8000 1000 8 R 215 nteger Offset constant for probe 1 calibration F 8000 8000 0 9 R 216 nteger Offset constant for probe 2 calibration F 8000 8000 0 10 R 217 nteger Offset constant for probe 3 calibration F 8000 8000 0 11 R 218 nteger Offset constant for probe 4 calibration F 8000 8000 0 12 R 219 nteger Digital input 6 D 0 0 66 R 66 Digita Digital input 7 D 0 0 67 R 67 Digita Digital input 8 D 0 0 68 R 68 Digita Digital input 9 D 0 0 69 R 69 Digita Digital input 10 D 0 0 70 R 70 Digita Digital input B8 D 0 0 71 R 71 Digita Digital output 6 D 0 1 0 72 R W 72 Digita Digital output 7 D 0 1 0 73 R W 73 Digita Digital output 8 D 0 1 0 74 R W 74 Digita Digital output 9 D 0 1 0 75 R W 75 Digita Digital output 10 D 0 1 0 76 R W 76 Digita Password to control outputs from the supervisor D 0 8000 1 0 13 R W 220 nteger Defrost status D 0 255 0 134 R 341 nteger bit O Defrost circuit 1 bit 1 Defrost circuit 2 bit 2 Fan Defrost circuit 1 bit 3 Fan Defrost circuit 2 32 UC SE 030220426 rel 2 1 09 06 2010 Controls from the UAD D 0 1023 1 0 135 R W 342 Integer bitO terminal status 0 not connected 1 available bit2 biti mode set from AD 00 AUTO 01 cooling 10 heating bit3 enable dehumidification bit4 enable humidification bit5 terminal probe alarm bit6
78. frost min time interval to start a def cycle d6 min defrost interval d5 timer reset SION pi e pa ko S Minimum defrost duration d06 Represents the minimum duration of the defrost cycle the defrost continues even if the value read by the condenser probe exceeds the end temperature pressure If set to 0 the minimum defrost time function is disabled d06 0 control disabled Maximum defrost duration d07 If timed defrost is set d02 0 this establishes the duration of the cycle If on the other hand the defrost ends at a set temperature pressure it represents the maximum duration being in this case a safety feature an alarm is signalled dF1 or dF2 Delay between two defrost requests in the same circuit d08 Represents the minimum delay between two successive defrost cycles Defrost delay between the 2 circuits d09 Represents the minimum delay between the defrost cycles on the 2 circuits Defrost management from external contact d10 This enables or disables defrost control from an external contact This function is typically used to end the defrost based on a signal from a thermostat pressure switch connected to the corresponding digital input In this case the defrost times are ignored d10 0 function disabled Note for the other settings the start and end defrost are enabled for temperature and pressure values between the Defrost start and end set points d10 1 start de
79. frost from external contact enabled therefore if the contact of the input is open the start of the defrost is enabled ifthe contact of the input closed the defrost follows the normal procedure MCSE 030220426 rel 2 1 09 06 2010 d10 2 end defrost from external contact enabled therefore if the contact of the input is open the end of the defrost is enabled if the contact of the input is closed the defrost follows the normal procedure d10 3 start and end defrost from external contact enabled therefore if the contact of the input is open the end start of the defrost is enabled if the contact of the input is closed the defrost follows the normal procedure Antifreeze auxiliary heaters in defrost d11 This parameter determines whether during the defrost cycle the antifreeze auxiliary heaters should be activated to limit the flow of cold water air into the room d11 0 antifreeze auxiliary heater not activated in defrost d11 1 antifreeze auxiliary heater activated in defrost Waiting time before defrost delay in switching from heating to cooling d12 As soon as the defrost condition arises but before the actual cycle starts the unit stops the compressor for the time d12 selectable from 0 to 3 minutes When the compressor stops the four way valve is switched reversing of the cycle after a time equal to d12 2 this waiting time allows the pressure to balance before starting the defrost cycle In
80. g F 0 12 Flag 1 0 116 323 Integer 0 disabled R W 1 freecooling without compressors cooling only 2 freecooling with compressors cooling only 3 freeheating without compressors heating only 4 freeheating with compressors heating only 5 freecooling and freeheating without compressors freecooling cooling only and freeheating heating only 6 freecooling and freeheating with compressors freecooling cooling only and freeheating heating only 7 freecooling without compressors always 8 freecooling with compressors always 9 freeheating without compressors always 10 freeheating with compressors always 11 freecooling and freeheating without compressors always 12 freecooling and freeheating with compressors always r35 Compressor deactivation time with freecooling freeheating active F 0 999 js 1 240 117 324 Integer R W r36 Maximum damper operating time F 0 600 js 1 20 118 325 Integer R W 137 Damper opening duty cycle differential F 03 500 _ C F 10 1 30 73 R W 73 Analog r38 Damper closing duty cycle differential E 03 500 CF 10 1 30 74 R W 74 Analog r39 Autotuning correction coefficient F 11 30 0 1 13 75 R W 175 Analog r40 Indicates when to operate minimum damper opening F 0 7 1 0 119 326 Integer 0 never R W 1 only in freecooling 2 only in freeheating 3 in freecooling and in freeheating 4 only if the freecooling and freeheating conditions end 5 only if the freehea
81. h pressure 1 and 2 11 compressor overload 1 and 2 12__ low pressure land 2 13 inlet evaporator probe 14 compressor 2 15 water pump 16 compressor 3 17__ compressor 4 COIN JO B Wh Fig 3 c b uOSE 030220426 rel 2 1 09 06 2010 13 3 3 2 two circuits 1 condenser fan circuit ae Key n condenser fan overload 2 fan WE 3 condenser probe 1 and 2 PA 4 flow switch LU 5 outlet temperature probe 6 evaporator 1 and 2 7 outlet evaporator probe 1 and 2 8 antifreeze heater 1 and 2 9 compressor 1 10 high pressure 1 and 2 11 _ compressor overload 1 and 2 12 __ low pressure land 2 13 _ inlet evaporator probe 14 compressor 2 15 __ water pump 16 compressor 3 17__ compressor 4 3 4 AIR WATER heat pum 3 4 1 Single circuit Key antifreeze heater inlet evaporator probe 9 compressor 1 10 high pressure 11 compressor overload 12 low pressure 13 water pump 14 compressor 2 1__ condenser fan overload a gt 2 fan 3 sonda condensatore 4 flow switch 5 outlet evaporator probe 6 evaporator 7 8 Fig 3 d a 14 UOSE 030220426 rel 2 1 09 06 2010 3 4 2 2 condenser fan circuits Key condenser fan overload 1 and 2 fan 1 and 2 condenseer probe 1 and 2 flow switch outlet tempera
82. he optional phase cutting cards MCHRTF are required fitted with a triac The voltage delivered by the triac to the electric fan motor corresponding to the maximum speed must be set The set value does not correspond to the actual voltage in Volts applied but rather to an internal unit of calculation in the uC SE If using FCS controllers set this parameter to 100 F04 Represents the maximum threshold for the triac Temperature pressure set point for minimum speed in cooling F05 This represents the temperature or pressure below which the fans remain ON at minimum speed In the case of ON OFF control it represents the temperature or pressure below which the fans are switched OFF Fig 5 a k Temperature pressure differential for maximum speed in cooling F06 This represents the temperature or pressure differential in reference to F05 above which the fans are started at maximum speed in the case of ON OFF control this represents the differential above which the fans are started Fig 5 a k Temperature pressure differential for fans Off in cooling F07 This represents the temperature or pressure differential in reference to F05 below which the fans are stopped The fans are started 1 C lower when using NTC temperature probes or 0 5 bars if using pressure probes Fig 5 a l If NTC temperature probes or pressure probes are used to control the condensing temperature pressure there is an activation hysteresis of 1 C or
83. ich compressor must be stopped in each circuit during capacity control P24 0 stops compressors 1 and 3 P24 1 stops compressors 2 and 4 Low pressure alarm set point from transducer P33 Sets the value beyond which the low pressure alarm is generated when the unit is operating in heat pump mode Each circuit will be managed according to its own transducer P33 0 the function is disabled Mute alarm relay using PRg mute button P35 0 the PRG mute button does not alter the status of the relay if the alarm is active and in progress P35 1 the PRG mute button alters the status of the relay even if the alarm is active and in progress as if it were a buzzer or a siren High pressure alarm management P36 the parameter is used to consider the high pressure alarm even when the compressor is off or consider it only when the compressor is on depending on whether the pressure switch is directly connected to the digital input on the controller or via another circuit P36 0 high pressure alarm always considered pressure switch connected directly to the digital input P36 1 high pressure alarm considered 2 seconds after starting the compressor Control settings parameters r Cooling set point r01 between r13 and r14 r02 cooling differential value of DTE when the unit is first started autotuning enabled Heating set point heat pump r03 between r15 and r16 r04 heating differential value of DTE when the unit is
84. ifit connectors kit 2 meter length for code MCH2 MCHSMLCAB2 Minifit connectors kit 3 meter length for code MCH2 MCHSMLCAB3 Remote terminal for MCH20000 for panel installation MCH200TPO MCH200TPO Remote terminal for MCH20000 for wall mounting MCH200TWO MCH200TWO0 Supervisor serial connection kit for remote terminal MCH200TSVO Fan speed PWM 4 A 230 Vac MCHRTF04C0 Fan speed PWM 8 A 230 Vac MCHRTFO8CO Fan speed PWM 12 A 230 Vac MCHRTF12CO Fan speed PWM 10 A 230 Vac 1 Pc Nor Ind MCHRTF10CO Fan speed PWM 10 A 230 Vac 10 Pc Nor Ind MCHRTF10C1 Table 9 a x n O zZ Ww 10 TECHNICAL SPECIFICATIONS AND SOFTWARE UPDATES 10 1 Technical specifications Electrical specifications In the following specifications Group A defines the grouping of the following outputs valve pump compressor heater Power supply 24 Vac range 10 15 50 60 Hz Maximum power input 3W Fuse compulsory in series with the power supply to the uC SE 315mAT 12 pin connector Max current 2 A for each relay output extendable to 3 A for one single output Relays Max current at 250 Vac EN60730 resistive 3A Inductive 2A cosp 0 4 60 000 cycles UL Resistive 3A 1 FLA 6 LRA cos 0 4 30 000 cycles For further information refer to the characteristics shown in Figure 10 a Minimum interval between communications each relay 12 s the manufacturer of the unit that the device is integrated into must
85. igital Table 4 m 4 3 13 Supervisor only variables display parameter and description default jmin max U O M variat def visibility supervis Modbus variable indicat level variable ype Indicates the unit parameter Carel SV communication F 0 250 108 R 207 nteger Gain constant for pressure probe calibration F 0 16000 1000 R 207 nteger Offset constant for pressure probe calibration F 8000 8000 0 R 207 nteger Compressor 1 operating hours D 0 8000 0 R 207 nteger Compressor 2 operating hours D 0 8000 0 R 207 nteger Compressor 3 operating hours D 0 8000 0 R 207 nteger Compressor 4 operating hours D 0 8000 0 R 207 nteger Compressor pump operating hours D 0 8000 0 R 207 nteger Evaporator pump operating hours D 0 8000 0 R 207 nteger Alarms warnings for EVD1 D 0 0 0 R 207 nteger bitO low superheat alarm bitl EEPROM alarm bit2 probe alarm bit3 MOP warning bit4 LOP warning bit5 high suction temperature warning bit6 valve open after power failure alarm bit7 flat battery alarm Controls status indicators for EVD1 D 0 0 0 R 207 Integer bitO biti comp load step 0 0 1 50 2 100 bit2 standby circuit 2 0 ON 1 standby bit3 chiller pump circuit 2 0 chiller 1 pump bit4 defrost circuit 2 0 no defrost 1 defrost bit5 forced valve closing for pump down bit6 enable smart defrost bit7 enable low noise bit8 type of condenser probe
86. ii CAREL electronic control E Ed User manual Technology amp Evolution A IMPORTANT WARNINGS CAREL bases the development of its products on several years experience in the HVAC field on continuous investment in technological innovation of the product on rigorous quality procedures and processes with in circuit and function tests on 100 of its production on he most innovative production technologies available on the market CAREL and its branch offices afflliates do not guarantee in any case that all the aspects of the product and the software included in the product will respond to the demands of the final application even if the product is built according to state of the art techniques The client builder develo per or installer of the final equipment assumes every responsibility and risk relating to the configuration of the product in order to reach the expected results in relation to the specific final installation and or equipment CAREL in this case through specific agreements can intervene as consultant for the positive result of the final start up machine application but in no case can it be held responsible for the positive working of the final equipment appa ratus The CAREL product is a state of the art product whose operation is specified in the echnical documentation supplied with the product or can be downloaded even prior to purchase from the website www carel com Each CAREL product in relation to it
87. ing maximum operating pressure circuit 2 The warning appears on the display and if the expansion card is fitted the corresponding relay is activated LO1 LOP warning lowest operating pressure circuit The warning appears on the display and if the expansion card is fitted the corresponding relay is activated LO2 LOP warning lowest operating pressure circuit 2 As for LO1 but relating to driver 2 HA1 high evaporator temperature warning circuit 1 The warning appears on the display and if the expansion card is fitted the corresponding relay is activated HA2 high evaporator temperature warning circuit 2 As for HA1 but relating to driver 2 EP1 EEPROM error driver 1 The circuit 1 is disabled for safety reasons as the status of Driver 1 is not known EP2 EEPROM error driver 2 As for EP1 but relating to driver 2 ES1 probe error driver 1 The circuit 1 is disabled for safety reasons as the status of Driver 1 is not known ES2 probe error driver 2 As for ES1 but relating to driver 2 EU1 EVD 1 error valve open when starting If when starting the system the Driver detects that the valve is still open an alarm is sent to the uC SE that stops the compressors and the fans in the corresponding circuit EU2 EVD 2 error valve open when starting As for EU1 but relating to EVD 2 Eb1 EVD 1 battery alarm The EVD 1 battery alarm stops the compressors from starting so as to prevent the risk of liquid returning to cir
88. ing control on corresponding set point 4 Condensing control always on nn ninin n n POSF int Integer H22 Disable load default values 0 Function disabled 1 Function enabled Flag 18 R W Digital H23 Enable Modbus Flag 11 R W Digital UC SE 030220426 rel 2 1 09 06 2010 29 Table 4 h 4 3 9 Firmware parameters F r display parameter and description default min max U O M variat default visibility supervis Modbus variable I indicat level variable type n H99 Software version Driver 2 D 0 999 Int 22 1 R 208 Integer mie H98 Software version Driver 1 D 0 999 Int 0 X 2 R 209 Integer mg H97 Expansion software version D 0 999 Int 0 V 3 R 210 Integer U H96 Software version displayed when powering up D 0 999 Int 0 XV 4 R 211 Integer Zz the instrument Table 4 i Lu 4 3 10 Alarm setting parameters P display parameter and description default jmin max U O M variat def visibility supervis Modbus variable indicat level variable type P01 Flow switch alarm delay when starting the pump U 0 150 s 1 20 R 63 R W 270 Integer P02 Flow switch alarm delay during steady operation U 0 120 s 1 5 a 64 R W 271 Integer P03 Low pressure alarm delay at compressor start up U 0 200 s 1 40 F 65 R W 272 Integer P04 Enable compressor capacity
89. inimum opening when control is not a he freecooling and freeheating conditions r40 8 in cooling r40 9 in heating Q ive regardless of Minimum damper opening position r41 defines the percentage of the damper travel time for the minimum damper opening position The damper is moved to the minimum opening only when control is not active and after having been completely closed so as to reset the correct evaluation of the position following control or alternatively directly to the minimum opening position set if the damper was previously in the completely open position Disable compressors for low outside temperature in Freecooling r42 defines the outside temperature threshold in freecooling mode below which the compressors are disabled being considered unnecessary Above the threshold on the other hand the compressors operate to support freecooling Electric heater set point relationship r43 defines the relationship between the absolute set point considered as the activation threshold for the electric heaters and the relative set point that is the activation threshold for the electric heaters referred o a working set point set point sent by AD r01 or r04 or from time band depending on the various applications and the mode cooling or heating and more precise r40 0 electric heater set point A4 A8 and A11 on absolute values r40 1 electric heater set point A4 absolute value A8 and A
90. is reversed from the keypad the remote control and the digital input Symbol P06 0 PO6 1 X Cooling Chiller Heating heat pump Me Heating heat pump Cooling Chiller Low pressure alarm with pressure probes P07 PO7 0 this function is disabled P07 1 if in heat pump mode the evaporator external exchanger pressure is less than 1 bar and if the presence of the condenser pressure probe is enabled the low pressure alarm is activated while still considering the delay P03 Note P07 1 the LP digital inputs in heat pump are ignored Select digital input ID1 PO8 0 none PO8 1 flow switch with manual reset normally closed PO8 2 flow switch with automatic reset N C PO8 3 general thermal overload with manual reset N C PO8 4 general thermal overload with automatic reset NC PO8 5 hermal overload circuit 1 with manual reset N C PO8 6 hermal overload circuit 1 with automatic reset N C PO8 7 hermal overload circuit 2 with manual reset N C PO8 8 hermal overload circuit 2 with automatic reset N C P08 9 cooling heating open Cooling closed Heating if HO6 1 PO8 10 cooling heating with delays d12 and d13 open Cooling closed Heating if HO6 1 PO8 11 alarm signal with manual reset N C PO8 12 alarm signal with automatic reset N C PO8 13 second set point from external contact cooling and heating normally open PO8 14 sec
91. ita E2 Probe B2 alarm Automatic OFF OFF OFF OF O 46 R Probe alarm Digita E3 Probe B3 alarm Automatic OFF OFF OFF OF O 46 R Probe alarm Digita E4 Probe B4 alarm Automatic OFF OF OFF OF O 46 R Probe alarm Digita E5 Probe B5 alarm Automatic OFF OFF OFF OF O 46 R Probe alarm Digita Ei Probe B6 alarm Automatic OFF OFF OFF OF O 46 R Probe alarm Digita E7 Probe B7 alarm Automatic OFF OFF OFF OF O 46 R Probe alarm Digita E8 Probe B8 alarm Automatic OFF OFF OFF OF O 46 R Probe alarm Digita Hc1 4 Hour warning C1 4 Automatic E 2 z z ON 47 R Compressor Digita advice EPr EEPROM error during operation Automatic ON 50 R General advice Digita EPb EEPROM error at the start up Automatic OFF OFF OFF OF OFF OFF OFF 45 R General alarm Digita ESP Expansion Error Automatic OFF OFF OFF OFF OFF Ol 45 R General alarm Digita EL1 2 Zero cross Automatic 100 ON ON 52 R Fan advice Digita dF1 2 Defrosting error Automatic ON 50 R General warning Digita d1 2 Defrost on circuit in question Signal on display Fd Dirty filter warning Automatic ON Signal on display Al Frost alarm circ 1 Depends on P05 OFF C1 2 OFF 1 ON 41 R Circuit 1 alarm Digita A2 Frost alarm circ 2 Depends on P05 OFF C3 4 OFF 2 ON 42 R Circuit 2 alarm Digita Ht High temperature Automatic ON ON 51 R Temperature Digita advice i Low ambient
92. its 1107 107 i 104 24 r02 Fig 5 b k Example of compressor deactivation due to outside temperature ON 125 12541 C Fig 5 b ae n O Zz Ww Key chiller chiller in low load heat pump heat pump in low load temperature AE DO R Hot keep hot start example ON hoot start 132133 132 Fig 5 b 0 hoot keep OFF Cooling set point in dehumidification r26 Alternative set point to r01 when the dehumidification function is active as sent to the uC2SE by the terminal The differential remains the same as for chiller mode r02 Buffer tank suppression low load r27 The low load condition is determined when only one compressor is started and then is stopped after operating for less than the time set for parameter r28 The settings are r27 0 the function is disabled r27 1 enabled only in chiller mode r27 2 enabled only in heat pump mode r27 3 enabled in chiller and heat pump modes Minimum compressor on time to determine low load condition r28 This parameter represents the minimum compressor on time below which the low load condition is determined Whenever the compressor stops the controller analyses the load status If already in low load condition the time considered by the controller for the analysis becomes r28 x r29 102 in chiller mode or r28 x r30 04 in heat pump mode This parameter also has the meaning of damper travel tim
93. land 2 compressor 3 compressor 4 freecooling freeheating damper W O OO IND A W IN o enable humidifier 3 11 2 Two circuits Fig 3 k b 3 12 Roof Top units 3 12 1 Example of Roof Top units with two circuits Fig 3 k l 24 UC SE 030220426 rel 2 1 09 06 2010 4 PARAMETERS 4 1 General parameters password and their function the desired level for each parameter The parameters are divided into 4 different types according to their level of access by the user For each level only the access to the parameters of the same or lower level can be set This means that through factory password acessing the menu levels L P it is possible to set Factory parameters Accessible with the 66 Factory password allow the configuration of all the unit parameters Super User parameters Accessible with the 11 Super User password allow the configuration of the Super User User and Direct parameters User parameters Accessible with password 22 allow the configuration of the parameters that typically can be set by the user User parameters and the Direct parameters consequently relating to the options Direct parameters Accessible without password this are used to read the probe measurements and any data by any user without compromising the operation of the unit N B The modifications to the parameters regarding the configuration of th
94. le low_noise in heating bit9 boiler bit12 digital signature for Chiller to the expansion Alarms warnings for EVD2 0 R 207 Integer bitO low superheat alarm bitl EEPROM alarm bit2 probe alarm bit3 MOP warning bit4 LOP warning bit5 high suction temperature warning bit6 valve open after power failure alarm bit7 flat battery alarm Controls status indicators for EVD2 0 R 207 Integer bitO biti compressor load step 0 0 1 50 2 100 bit2 standby circuit 2 0 ON 1 standby bit3 chiller pump circuit 2 0 chiller 1 pump bit4 defrost circuit 2 0 no defrost 1 defrost bit5 forced valve closing for pump down bit6 enable smart defrost bit7 enable low noise bit8 type of condenser probe 0 temp 1 press bit9 condenser temp press probe available bit10 restart unit after valve open alarm set in reset_ alarms bit1 1 enable control for driver 2 Model of uni 10 flag R W 207 Integer O air air uni 1 air air heat pump 2 air water chiller 3 air water heat pump 4 water water chiller 5 water water heat pump reversal of gas circ 6 water water heat pump reversal of water circ 7 condenser 8 condenser with reverse cycle 9 water cooled condenser 10 water cooled condenser with reverse cycle Table 4 n 34 uCSE 030220426 rel 2 1 09 06 2010 5 DESCRIPTION OF THE PARAMETERS To
95. ling water for the outdoor exchanger which becomes the evaporator in heating mode see d03 If the fan is not present the function is not enabled for air water units d01 0 condenser defrost antifreeze disabled d01 1 condenser defrost antifreeze enabled In the defrost is running the corresponding symbol will be shown on the display uC SE 030220426 rel 2 1 09 06 2010 39 ae n UO Zz Ww O Defrost by temperature d2 1 40 Type of defrost d02 establishes the type of defrost d02 0 the defrost has a fixed duration that depends on d07 d02 1 the defrost starts and ends according to the temperature or pressure thresholds see d03 and d04 d02 2 the pressure transducer and temperature probe are both located on the outside exchanger the defrost starts when the value read by the pressure transducer is below the threshold d03 and ends when the value read by the temperature probe is above the threshold d04 during the defrost the pressure probe controls the fan speed as in chiller mode so as to limit the pressure even if the NTC probe caked by ice delays the end defrost In any case after the maximum time allowed for the defrost the unit will always exit the defrost procedure d02 3 enable sliding defrost In the event of low outside temperatures the evaporator pressure or temperature may fall below the threshold set to start the defrost d03 even if there is e
96. lower temperature or pressure The output used is Y1 Vice versa with 2 ventilation circuits H02 1 each PWM output is independent and depends on its own condenser probe B3 or B4 for circuit 1 and B7 or B8 for circuit 2 UC SE 030220426 rel 2 1 09 06 2010 Number of evaporators H03 This establishes the number of evaporators present when there are 2 or 4 compressors obviously with 2 circuits including the expansion With one evaporator H03 0 the management of the heaters and the antifreeze function is performed only on B2 Vice versa with 2 evaporators H03 1 antifreeze control will be performed using B2 and B6 while input B5 is used to control the water outlet temperature Number of compressors circuits H04 This establishes the number of compressors per circuit and the number of circuits For further details see Table 4 g Evaporator pump fan operating mode H05 This establishes the operating mode for the evaporator water pump or the outlet fan in air air units HO5 0 pump disabled the flow switch alarm is ignored 05 1 always ON the alarm is managed 05 2 ON when called by compressor the alarm is managed 05 3 the pump will be started and stopped at regular intervals independently from the ompressors as per the Burst setting see parameters c17 and c18 05 4 follow hot keep or hot start in heating always on in cooling 05 5 follow hot keep or hot start in heating follow the compre
97. ls r03 Heating set point D r15 r16 C F 0 1 400 43 R W 43 Analog r04 Heating differential D 3 500 C F 0 1 30 44 R W 44 Analog r05 Compressor rotation F 0 3 Flag 1 0 78 R W 1285 Integer 2 0 disabled 1 FIFO type LLI 2 hour control 3 direct relation between D I and compressors D O r06 Type of compressor control F 0 4 Flag 1 0 79 R W 286 Integer 0 proportional on inlet 1 proportional on inlet dead zone 2 proportional on outlet 3 proportional on outlet dead zone 4 time on outlet with dead zone 107 Dead zone differential F 1 500 C F 0 1 20 45 R W 45 Analog r08 aximum control output activation time F 0 999 1 120 80 R W 287 Integer r09 inimum control output activation time F 0 999 S 1 100 81 R W 288 Integer r10 aximum control output deactivation time F 0 999 Is 1 120 82 R W 1289 Integer iil inimum control output deactivation time F 0 999 js 1 100 83 R W 1290 Integer r12 Compressor deactivation differential F 0 500 C F 0 20 46 R W 46 Analog r13 inimum set point in Cooling U 400 r14 CPF 0 400 47 R W 147 Analog r14 ax Cooling set point U r13 1760 C F 0 800 48 R W 48 Analog r15 Min Heating set point U 400 r16 CF O 400 49 R W 49 Analog r16 ax Heating set point U r15 1760 C F _ 0 800 50 R W 150 Analog r17 Cooling compensation constant U 50 50 0 0 51 R W 151 Analog r18 aximum distance from the set point U 3 200 C F_
98. ltage All Evd 2 Eb2 EVD 2 battery alarm All Sonde ET Probe B1 alarm All Evd 1 Ed1 EVD1 tLAN error All Sonda HAD Ei UAD terminal probe alarm All Sonde E2 Probe B2 alarm All Evd 2 Ed2 EVD2 tLAN error All Sonde E3 Probe B3 alarm OFF SH1 EVD1 overheat alarm All Sonde E4 Probe B4 alarm All Evd 2 SH2 EVD2 overheat alarm Start hours for 2nd set point in cooling t06 192 Hour when the second cooling set point starts r21 Start minutes for 2nd set point in cooling t07 193 Minutes when the second cooling set point starts r21 End hours for 2nd set point in cooling t08 194 Hour when the second cooling set point stops r21 End minutes for 2nd set point in cooling t09 195 Minutes when the second cooling set point stops r21 Start hours for 2nd set point in heating t10 196 Hours when the second heating set point starts r22 Start minutes for 2nd set point in heating t11 197 Minutes when the second heating set point starts r22 End hours for 2nd set point in heating t12 198 Hours when the second heating set point stops r22 End minutes for 2nd set point in heating t13 199 Minutes when the second heating set point stops r22 If a digital input is configured as the second set point from external contact e g p08 13 the time bands are ignored If a digital input is configured as the second cooling set point from external contact and heating set point from time band e g p08 14
99. m and maximum speed parameters F05 F06 F08 and F09 When the compressors are stopped the corresponding fans are also stopped irrespective of the condensing temperature pressure Cooling ON OFF Heating ON OFF Oy Or 100 100 F04 F04 0 FOs gt gt 0 gt F06 F09 Fig 5 a l Cooling with speed control Heating with speed control Fig 5 a m F02 3 ON when the corresponding compressor is ON with speed control When the compressors are stopped the corresponding fans are also stopped irrespective of the condensing temperature pressure With F02 3 and an NTC condenser probe when the compressor starts the fans are started at maximum speed for the time F11 irrespective of the temperature measured In the event of a condenser probe fault the fans will be switched OFF Minimum voltage threshold for Triac F03 In the event of fan speed control the optional phase cutting cards MCHRTF are required fitted with a triac The voltage delivered by the triac to the electric fan motor corresponding to the minimum speed must be set The set value does not correspond to the actual voltage in Volts applied but rather to an internal unit of calculation in the HCSE If using FCS controllers set this parameter to 0 F03 Represents the minimum threshold for the triac UC SE 030220426 rel 2 1 09 06 2010 Maximum voltage threshold for Triac F04 In the event of fan speed control t
100. mit low ambient temp for air air units A01 when probe B2 is installed on the coil represents the temperature antifreeze set point of the water at the evaporator outlet below which an antifreeze alarm is activated in this condition the compressors corresponding to the circuit in question are stopped while the pump remains on to decrease the possibility of freezing The alarm is reset manually or automatically depending on parameter P05 only when the water temperature returns within the operating limits that is above A01 A02 In the Air Air units H1 0 1 the value represents the low room temperature warning threshold Example of antifreeze outlet limit management this alarm activated according to value read by probe B1 or B2 depending on parameter A06 is signal only and is reset depending on the value of P05 O If probe B2 is placed in the outlet air flow air air units A01 becomes the outlet limit and if the outlet probe reading B2 lt outlet limit A1 then 1 bypass waiting time A3 2 stop the compressors if already off go to pt 4 OFF 3 bypass waiting time A3 a APE 4 close damper with 50 duty cycle if FC active and the ambient temperature means damper open Fig 5 a a or dead zone If FC is not active go to pt 6 5 bypass waiting time A3 after having closed r28 twice from the end of the last period Key 6 If B2 lt A1 the alarm Al is activated The alarm reset depends on P5 1 freecooling or comp 2 probe
101. modify the parameters see chapter 4 Parameters JL Probe settings parameters see Table 4 a n Type of probe from 01 to 08 enables the reading of the corresponding analogue input or l sets the function Functions of the probes Z Type of unit Parameter H01 Temp control Antifreeze probe Cond temp Press probe Antifreeze Cond temp Press probe uu probe 1 circuit probe 1 circuit probe probe 2 circuit 1 circuit 2 evaporator 2 circuit O air air B B2 low outlet B3 B4 ot used B7 B8 emperature 1 _ air air heat pump cooling heating B B2 low outlet B3 B4 ot used B7 B8 emperature 2 air water Chiller B1 B2 single B2 B3 B4 Bo B7 B8 circuit B1 B5 two Circuits 3 air water heat pump cooling heating B1 B2 single B2 B3 B4 Bo B7 B8 circuit B1 B5 two Circuits 4 water water Chiller B1 B2 single B2 Not used Not used B6 Not used ot used circuit B1 B5 two circuits 5 water water heat pump rev on gas cooling B1 B2 single B2 B3 B4 B6 B7 B8 circuit B1 B5 two circuits heating B1 B2 single B3 B3 B4 B7 B7 B8 circuit B1 B5 two circuits 6 water water heat pump rev on H O cooling B1 B2 single B2 ot used B4 B6 ot used B8 circuit B1 B5 two circuits heating B3 B2 ot used B4 B6 ot used B8 __ Air cooled condensing unit B3 B4 B7 B8 Air cooled condensing unit rev on gas B3 B4 B7 B8 Water cooled condensing unit B3 B4 B7 B8 10 Water cooled condensing unit rev on gas B3 B3
102. n heating and cooling modes UC SE 030220426 rel 2 1 09 06 2010 71 I n O Zz Ww 72 uC SE 030220426 rel 2 1 09 06 2010 ENGLISH UOCSE 030220426 rel 2 1 09 06 2010 73 I n O Zz Ww 74 uC SE 030220426 rel 2 1 09 06 2010 CAREL CAREL INDUSTRIES HQs Via dell Industria 11 35020 Brugine Padova Italy Tel 39 0499716611 Fax 39 049 9716600 e mail carel carel com www carel com Agence Agency CAREL reserves the right to modify the features of its products without prior notice UCSE 030220426 rel 2 1 09 06 2010
103. nd defrost circuit 1 step 2 condensing unit second set point High pressure circuit 1 Low pressure circuit 1 Remote ON OFF reverse cycle condensing unit if reversible Ramp circuit 1 condenser C1 2 NO1 Compressor 1 C1 2 NO2 Heater or reversing valve in 1st circuit C3 4 N03 Fan 1 evaporator pump C3 4 NO4 Compressor 2 capacity control compressor 1 C5 NO5 Alarm or reversing valve Expansion Table 7 a Description Output probe in common with 2 evaporators only with 2 circuits Circuit 2 protection probe 2 evaporator output 2 condenser temperature probe B8 universal 2 condenser pressure probe ID6 Flow switch thermal overload circuit 2 end defrost circuit 2 step 4 condensing unit second set point ID7 Flow switch thermal overload circuit 2 end defrost circuit 2 step 4 condensing unit second set point ID8 High pressure circuit 2 ID9 Low pressure circuit 2 ID10 Y2 Ramp circuit 2 condenser C6 7 NO6 Compressor 3 1 in 2nd circuit C6 7 NO7 Heater or reversing valve in 2nd circuit C8 9 NO8 Fan 2 condenser pump backup C8 9 NO9 Compressor 4 capacity control compressor 2 or reversing valve circuit 1 or reversing valve circuit 2 C10 NO10 Warning or reversing valve circuit 2 Table 7 b Any of the options for P08
104. nit without reverse cycle 3 8 1 Single circuit a a E B3 4 Fig 3 h a 20 MCSE 030220426 rel 2 1 09 06 2010 3 8 2 Two circuits O O O O A m lt condenser fan overload fan condenser probe compressor 1 B3 4 B7 8 high pressure 1 and 2 compressor overload 1 and 2 low pressure 1 and 2 compressor 2 compressor 3 OOO IN D O Co IN oO compressor 4 Fig 3 h b 3 9 Reverse cycle air cooled condensing unit 3 9 1 Single circuit A lt condenser fan overload fan condenser probe compressor 1 high pressure compressor overload low pressure compressor 2 0 JNJ BS J IR reversing valve uOSE 030220426 rel 2 1 09 06 2010 21 ENGLISH 3 9 2 Two circuits with one condenser fan circuit Key condenser fan overload fan condenser probe compressor 1 high pressure 1 and 2 compressor overload 1 and 2 low pressure 1 and 2 compressor 2 compressor 3 compressor 4 reversing valve ae n O zZ W 1 2 3 4 5 6 7 8 9 1 1 ss 1S Fig 3 i b FA Water cooled condensing unit without reverse cycle 3 10 1 Single circuit A D flow switch water cond temperature probe condenser compressor 1 high pressure compressor overload low pressure compressor 2
105. ns 39 01 2120 12 39 01 2140 14 Table 10 c Max number of insertion removal cycles for the connectors 25 cycles Code of the contacts according to the cross section of the connection cables to the 12 and 14 pin connectors use the special Molex tool code 69008 0724 for crimping Molex code of the contact Cross section of cables allowed 39 00 0077 AWG16 1 308 mm 39 00 0038 AWG18 24 0 823 to 0 205 mm 39 00 0046 AWG22 28 0 324 to 0 081 mm Table 10 d In addition the pre wired kits MCHSMLC are also available A WARNINGS 70 If one transformer is used to supply both the uC SE and the accessories all the GO terminals on the various controllers or the various boards must be connected to the same terminal on the secondary and all the G terminals to the other terminal on the secondary so as to avoid damaging the instrument For use in residential environments use shielded cable two wires shield earthed at both ends AWG 20 22 for the tLAN connections EN 55014 1 Avoid short circuits between V and GND so as to not damage the instrument Perform all the maintenance and installation operations when the unit is not connected to the power supply Separate the power cables relay outputs from the cables corresponding to the probes digital inputs and serial line Use a transformer dedicated exclusively to the electronic controllers for the power supply Protection against electric shock
106. nt PSOPZKEYOO Maximum current supplied 50 mA max Power supply to the switching power supply PSOPZKEYAO Input 100 to 240 V 10 10 50 60 Hz 90 mA Output 5 Vdc 650 mA Operating conditions OT50 C r H lt 90 non condensing Storage conditions 20T70 C rH lt 90 non condensing Case Plastic dimensions 42x105x18 mm including prod and connector Figs land 2 Table 7 e Here we have dealt only with the base functions of the instrument For the remaining specific functions see the manual of the instrument that is being used UC SE 030220426 rel 2 1 09 06 2010 65 ENGLISH Fig 7 h Fig 7 i Fig 7 j b 7 9 RS485 serial options RS485 serial option for HC SE panel version code MCH2004850 The MCH2004850 serial option is used to connect the HCSE controller to a supervisor network via a standard RS485 serial line This option uses the input normally associated with the programming key which has the dual function of key connector serial communication port I n O Zz Lu 7 10 Terminals The uC SE features the following user interfaces Remote terminal The remote terminal allows the complete configuration of the uC2SE from a remote position The buttons and indications on the display faithfully reproduce the HC2SE user interface In addition PlantVisor can be connected to the remote terminal using the special accessory Product code MCH200TP00 for panel installation MCH200T
107. o longer present Lt low temperature warning For direct expansion units H01 0 1 the alarm is used to measure a low room temperature using probe B1 or B2 depending on par A06 The alarm may be reset manually or automatically and depends on the parameter P05 If the expansion is present the corresponding relay is activated in the event of CSE module only the alarm relay will be used AHt high temperature warning when starting the system The advice does not activate the relay and displays the message AHt ALt low temperature warning when starting the system The advice does not activate the relay and displays the message ALt ELS EHS warning low high power supply alarm If the power supply voltage is too low or too high the corresponding message is displayed In these cases the correct operation of the uC SE is no longer guaranteed In the low voltage conditions only the requests to deactivate the loads are effected Any start up requests remain pending The high voltage condition involves the deactivation of all the energised relays L Low load warning The warning does not activate the relay and displays the message L reset is automatic tEr terminal communication error This alarm is only shown if uC SE has been connected to a terminal The alarm is generated a fixed time 30 s after CSE loses contact with the terminal In this case the unit is disabled for safety reasons MCSE 030220426 rel 2 1
108. of signals is as indicated above the copying operation has been completed correctly green LED ON the button can be released and the key disconnected from the instrument in case of different signals if the green LED doesn t turn on or if there are some flashes there s a problem Refer to the corresponding table for the meaning of the signals DOWNLOAD copying the parameters from the key to the instrument open the rear hatch of the key and place the dip switch n 1 in the OFF position and the dip switch n 2 in the ON position see Fig 7 j b Close the hatch connect the key to the connector of the instrument press the button on the key and keep it pressed checking the LED signal sequence at first it is red after a few seconds it becomes green if the sequence of signals is as indicated above the copying operation has been completed correctly green LED ON the button can be released after a few seconds the LED turns off and the key can be disconnected from the instrument in case of different signals if the green LED doesn t turn on or if there are some flashes there s a problem Refer to the corresponding table for the meaning of the signals The operation takes maximum 10 seconds to complete If after this period the completed operation signal hasn t yet appeared i e the green LED ON try releasing and pressing the button again In the event of flashes refer to the corresponding table for the meaning of the signals LED
109. on the set point A04 If there is an alarm in both circuits control will be performed on the based on the lower of the two This mode ends automatically when the antifreeze set point A01 the differential A02 is reached returning to the previous mode in any case the function can be terminated manually by modifying the parameters or disconnecting the power supply to the device UC SE 030220426 rel 2 1 09 06 2010 In this case the display will be as follows operating mode LED OFF cooling heating flag not switched not detected by the supervisor antifreeze alarm A01 remains active even at the end of the special operation if the unit was previously ON deactivated by manual reset or in standby A10 3 heaters ON based on the respective set point A04 and A08 Do not use with H1 6 Antifreeze heater 2 set point in defrost auxiliary in heating A11 Heater 2 set point in heating the control of the auxiliary heaters has been separated each having its own activation set point see A08 Dirty filter signal set point air air units only A12 Set point for the dirty filter signal based on B1 B2 the deactivation differential is A05 Valid in the following conditions air air units B1 is configured outlet limit active freecooling not active at least 1 compressor ON The warning is reset automatically in the following conditions air air units B1 is configured outlet limit active freecooling not active Outlet limi
110. ond cooling set point from external contact and heating from time band N O PO8 15 end defrost from external contact circuit 1 N C PO8 16 end defrost from external contact circuit 2 N C PO8 17 end defrost from external contact circuit 1 N C PO8 18 end defrost from external contact circuit 2 N C PO8 19 condenser step 1 NO PO8 20 condenser step 2 NO PO8 21 condenser step 3 NO PO8 22 condenser step 4 NO PO8 23 remote ON OFF PO8 24 compressor 1 failure PO8 25 compressor 2 failure PO8 26 compressor 3 failure PO8 27 compressor 4 failure Select digital inputs ID2 ID6 ID7 1D10 ID5 PO9 P10 P11 P12 P34 Configuration of digital inputs ID2 1D6 ID7 ID10 and ID5 respectively as per the table above for digital input ID1 Select input B4 if 04 1 P13 If input B4 is used as ON OFF 04 1 the same options are valid as for P08 Select input B8 if 08 1 P14 If input B8 is used as O OFF 08 1 the same options are valid as for POS Select low pressure alarm P15 Used to select whether the low pressure alarm is detected when the compressor is OFF P15 1 or alternatively only when the compressor is ON P15 0 default When the compressor starts the alarm is in any case ignored for the time P03 High temperature high system start up temperature alarm delay P16 Represents the high temperature alarm threshold detected by probe B1 the differen
111. ontact r22 Represents the alternative to r03 if an associated digital input is closed see parameter P08 between r15 and r16 Select automatic changeover probe r23 Select automatic changeover probe r23 0 automatic changeover disabled to be selected when the micro ad is used as in this case the changeover is managed completely by the terminal r23 1 automatic changeover enabled on probe B1 r23 2 automatic changeover enabled on probe B2 r23 3 automatic changeover enabled on probe B3 r23 4 automatic changeover enabled on probe B4 r23 5 automatic changeover enabled on probe B5 r23 6 automatic changeover enabled on probe B6 r23 7 automatic changeover enabled on probe B7 r23 8 automatic changeover enabled on probe B8 Automatic changeover set point r24 Automatic changeover set point the change from cooling to heating occurs by decreasing temperature until reaching the set point r24 r07 observing the reversing times The change for heating to cooling occurs by increasing temperature until reaching the set point 1244107 observing the reversing times The changeover is managed differently depending on the type of unit water source air water and water water or air air Air water and water water units Changeover is disabled if the selected probe r23 is not configured or is a pressure probe When changeover is enabled in any cooling heating inputs are ignored If the acqua terminal is used set point r24 can be se
112. oom T outside T gt freecooling differential r29 Key Fig 5 b p room T B1 room T f cool diff outT e g B3 outlet T A1 freecooling OFF time OO U1 R amp ND gt Key to Fig 5 b q 1 freecooling 2 room T outT 3 FC diff hysteresis 4 freecooling diff Freeheating can be enabled when outside T room T gt freeheating differential r30 Key to Fig 5 b r outT 2 roomT 3 outT f heat diff 4 freeheating ON 5 freeheating OFF 6 time The compressors can be used to support freecooling freeheating if the latter are insufficient to provide for the thermal load The proportional control band is respectively 1 divided by the number of compressor steps when freecooling heating is disabled Fig 5 b s 2 managed with freecooling heating operating and the compressors activated Fig 5 b t Key to Fig 5 b s 1 damper disabled set point utility temperature operation with 4 compressors proportional band U R amp N Special cases Ifthe compressors are on and freecooling is disabled when the conditions for starting freecooling are reached the controller will behave as follows the compressors are switched off and can only be started again if the damper is 100 open according to the control diagram shown in fig 5 b t 2 If control is performed with the compressors on and freecooling enabled when the conditions for stopping f
113. op hit or shake the device because the internal circuits and mechanisms could suffer irreparable damage Do not use corrosive chemical products aggressive solvents or detergents to clean the device Do not use the product in application environments different than those specified in the technical manual All the above reported suggestions are valid also for the control serial unit programming key or nevertheless for any other accessory in the product portfolio of CAREL CAREL adopts a policy of continuous development Therefore CAREL reserves the right to carry out modifications and improvements on any product described in the present docu ment without prior notice The technical data in the manual can undergo modifications without obligation to notice The liability of CAREL in relation to its own product is regulated by CARELS general contract conditions edited on the website www carel com and or by specific agreements with clients in particular within the criteria consented by the applicable norm in no way will CA REL its employees or its branch offices affiliates be responsible for possible lack of earnings or sales loss of data and information cost of substitute goods or services damage to things or persons work interruptions or possible direct indirect incidental patrimonial of covera ge punitive special or consequential in any way caused damages be they contractual out of contrac
114. or irrespective of the condensing temperature pressure if NTC temperature probes are used on the condenser and speed control is enabled F02 3 this is done to bring forward the sudden increase in pressure which does not necessarily correspond to a likewise rapid increase in temperature in the area where the probe is located and consequently to improve control F11 0 the function is disabled that is the fans are activated at the minimum speed and then controlled based on the condensing temperature pressure Triac impulse duration F12 This represents the duration in milliseconds for the impulse applied to the triac For induction motors set the parameter to 2 default On the other hand when using the CONVONOFFO CONVO0 10A0 modules or FCS controllers set the parameter to 0 uOSE 030220426 rel 2 1 09 06 2010 43 ENGLISH ae n O Zz Ww 44 Fan management mode in defrost F13 This parameter sets the operating logic for the condensing fans during the defrost phase F13 0 default the fans are OFF F13 1 the fans are ON as in cooling mode based on the temperature or pressure F13 2 the fans are OFF until the end defrost temperature or pressure is reached above which they are started at maximum speed for the time set for parameter d16 Only at the end of this time will the cycle return to heat pump mode with the normal management of the fans Note If the unit is running the Fan Defrost function
115. or further information see the instruction sheet 050000740 and the manual 030220460 66 uC SE 030220426 rel 2 1 09 06 2010 8 DIMENSIONS The following are the mechanical dimensions of each component in the HCSE controller all the values are expressed in millimetres Note the dimensions include the free connectors inserted ae n O zZ Ww MCH200000 uC SE panel mounting version 74 drilling template 71x29 mm A ti pane mE gMung overall dimensions 91 5x36x5 mm Fig 8 a Expansion board for uC SE CONVONOFFO and CONV0 10 A modules O0OOO Eoee 2 Bess UC eD ES Expansion boar d ESS E m DIN rail mounting OOOO 11 PE e gt gt Fig 8 6 Fig 8 c RS485 serial card codeMCH2004850 Ea a E 5 75 5 85 i y Y A UC SE 030220426 rel 2 1 09 06 2010 67 MCHRTF series single phase speed controllers a n l UO Model A component B C D E d side Lu MCHRTFO4C0 43 100 40 50 107 MCHRTFO8CO 75 100 58 82 107 MCHRTF12C0 75 100 58 82 107 Note the version with screw teminals code MCHRTF D0 is available on request Table 8 a gJ f r i l O D a TER
116. ow the value of one bar for the time P22 the circuit can operate at part load This capacity control is not activated when the alarm comes from the digital input In the event of low pressure the controller deactivates one step and if the pressure does not return above the threshold in 10 seconds the alarm is activated and the circuit is stopped This function is valid for all units with pressure transducers UOSE 030220426 rel 2 1 09 06 2010 Q Note Cooling heating 9 10 cannot be set on P10 P11 P12 and P14 Alarm reset P05 Enables automatic reset for all those alarms that normally feature manual reset high pressure low pressure flow switch antifreeze as per the following table PO5 0 default high pressure low pressure and antifreeze low temperature with manual reset PO5 1 all the alarms with automatic reset PO5 2 high pressure and antifreeze low temperature manual low pressure automatic PO5 3 high pressure manual low pressure and antifreeze low temperature automatic PO5 4 high and low pressure manual antifreeze low temperature automatic PO5 5 high and low pressure manual after the third activation in one hour antifreeze low temperature automatic PO5 6 high and low pressure manual a temperature manual er the third activation in one hour antifreeze low Cooling Heating logic P06 If this parameter is set to 1 the operating logic of the Cooling Heating logic
117. positive the set point increases as the outside temperature increases measured by the outside probe if on the other hand r17 is negative the set point decreases as the outside temperature increases This difference in the set point from the set value can have a maximum absolute value equal to the setting of r18 The values for the parameters shown on the graph are r17 2 r01 25 r19 32 and r18 5 1 temperature 2 time 3 external temperature probe B3 B4 4 comp start temperature r19 5 positive compensation r17 2 6 set point r1 7 negative compensation r17 2 UOSE 030220426 rel 2 1 09 06 2010 Maximum deviation from the set point r18 Indicates the maximum deviation from the set point beyond which compensation is stopped maximum and minimum limits in reference to the set point Start compensation temperature in cooling outside probe r19 Sets the temperature measured by the outside probe above which the compensation function starts cooling value between 40T80 C Start compensation temperature in heating outside probe r20 Sets the temperature measured by the outside probe below which the compensation function starts heating the value must be between 40T80 C Second cooling set point from external contact r21 Represents the alternative to r01 if an associated digital input is closed see parameter P08 between r13 and r14 Second heating set point from external c
118. press E Loading default values press at power ON n Go up a sub group inside the programming area until exiting saving changes to EEPROM press once D n the event of alarms mute the buzzer if present and deactivate the alarm relay press once L Access the direct parameters press for 5 s Select item inside the programming area and display value of direct parameters confirm the changes to the parameters press once 2 l L Program parameters afters entering password press for 5 s J Select top item inside the programming area press once or press and hold Lu ncrease value press once or press and hold Switch from standby to chiller mode P6 0 and vice versa press for 5 s Provides immediate access to the condenser and evaporator pressure and temperature probes and DTE DTC1 2 press once K Select bottom item inside the programming area press once or press and hold Decrease value press once or press and hold Switch from standby to heat pump mode P6 0 and vice versa press for 5 s Provides immediate access to the condenser and evaporator pressure and temperature probes and DTE DTC1 2 press once J K anual alarm reset press for 5 s mmediately reset the hour counter inside the programming area press for 5 s L J Force manual defrost on both circuits press for 5 s Table 1 b 1 2 4 Programming and saving the parameters 1 press Pra and sel for 5 seconds 2 the heating and cooling symbol and the figure 00 are displayed 3 use S
119. r probe evaporator antifreeze heater 1 and 2 compressor 1 high pressure 1 and 2 compressor overload 1 and 2 low pressure 1 and 2 inlet evaporator probe water pump compressor 2 compressor 3 compressor 4 3 5 WATER WATER chiller 3 5 1 Single circuit 3 5 2 Two circuits nnnn Te nL O amp AO Obu i f DA Fig 3 e b 16 UOSE 030220426 rel 2 1 09 06 2010 3 5 3 Ttwo circuits 2 evaporators Fig 3 e c 3 6 WATER WATER heat pump with reversal on gas circuit 3 6 1 Single circuit B3 4 Fig 3 fa uOSE 030220426 rel 2 1 09 06 2010 a Key n 1 water condensing temperature probe l 1and2 2 condensator 1 and 2 za 3 flow switch wi 4 outlet temperature probe 5 outlet evaporator probe 1 and 2 6 antifreeze heater 1 and 2 7 evaporator 8 water pump 9 compressor 1 10 high pressure 1 and 2 11__ compressor overload 1 and 2 12 __ low pressure 1 and 2 13 compressor 3 14 compressor 2 15 __ compressor 4 16 _ inlet evaporator pressure Key 1 condenser probe 2 condenser 3 flow switch 4 outlet evaporator probe 5 antifreeze heater 6 reversing valve 7 inlet evaporator probe 8 compressor 1 9 high pressure 10 compressor overload 11_ low pressure 12__ water pump 13 compressor 2
120. reater than 3 0 due to the hysteresis 3 bars the alarm is managed according to the set value Low system start up temperature alarm set point P19 Represents a threshold for the low temperature measured by probe B1 alarm without hysteresis it is reset automatically the alarm relay is not activated and the display shows the message ALt System start up protection for high low temperature P20 If set to 1 this parameter enables the system protection function when starting both at power ON and when switching ON from Standby In chiller mode cooling for values of B1 greater than the set point P19 an alarm is activated and the unit is not started display AHt In heat pump mode heating for values lower than the set point P19 an alarm is activated and the unit is not started display ALt The alarm is reset automatically P20 0 the function is not enabled Low pressure alarm waiting time in heat pump P22 Delay in generating the low pressure alarm in heat pump mode If the pressure remains below 1 bar for the time p22 and the circuit has 2 compressor steps the circuit can operate at part load see P04 This preventive capacity control function remains active until the pressure rises above F08 F09 Low pressure alarm waiting time during defrost P23 Delay in generating the low pressure alarm in heat pump mode during defrost Deactivate compressors in capacity control for HP and LP P24 Decide wh
121. reecooling are reached the controller will behave as follows first the damper is closed for 110 of r28 then the control diagram is changed from Fig 5 b t to Fig 5 b s 3 When starting the controller changing from cooling to heating and vice versa or switching from standby to ON and with favourable of freecooling or freeheating conditions the compressors are not started until the following conditions are satisfied the time r35 has elapsed the sum of the opening times is equal to 2 r28 4 When switching from On gt Standby cooling heating or vice versa the damper will be closed for 110 of r28 5 When switching from On gt Stand by cooling heating or vice versa the control diagram changes back to the one shown in Fig 5 b t Compressor deactivation time r35 Compressor deactivation time when waiting for freecooling heating Damper cycle time r36 Time used to calculate the duty cycle for opening and closing the damper uC SE 030220426 rel 2 1 09 06 2010 55 Example of freecooling ENGLISH ON ork Fig 5 b p Activation Desactivation freecooling ON OFF eo Fig 5 b q Example of freeheating Example of freeheating 100 0 Example of freecooling with the compressors on Fig 5 b t Key to Fig 5 b t 1 damper movement cycle time 2 working set point 3 cycle 4 dead zone r02 4 ae n O Zz Ww
122. ressor 1 high pressure compressor overload low pressure water pump compressor 2 LS de external internal reversing valve 1 and 2 condenser probe flow switch outlet evaporator probe condenser probe 1 and 2 condenser 1 and 2 OOO JO BW IN outlet evaporator probe 1 and 2 antifreeze heater 1 and 2 evaporator 1 and 2 compressor 1 high pressure 1 and 2 compressor overload 1 and 2 low pressure 1 and 2 compressor 3 inlet evaporator probe water pump compressor 2 N O W O IN D A WIN o compressor 4 I n O Zz Ww Key 1 external 2 internal 3 reversing valve 1 and 2 4 condenser probe 5 flow switch 6 outlet evaporator probe 7 condenser probe 1 and 2 8 condenser 1 and 2 9 outlet evaporator probe 1 and 2 O antifreeze heater 1 and 2 1__ evaporator 1 and 2 2 __ compressor 1 3 _ high pressure 1 and 2 4 compressor overload 1 and 2 5 _ low pressure 1 and 2 6 compressor 3 7 __ inlet evaporator probe 8 water pump 9 compressor 2 20 compressor 4 Key 1 condenser fan overload 2 fan 3 condenser probe 4 compressor 1 5 high pressure 6 compressor overload 7 low pressure 8 compressor 2 3 7 3 Two circuits 1 evaporator H02 1 e H21 4 3 8 Air cooled condensing u
123. s active valid for both temperature and pressure control Heating set point differential F17 Differential subtracted from the condenser control set point when low noise is active valid for both temperature and pressure control Unit settings parameters H Unit model H01 Used to select the type of unit being controlled HO1 0 0 air air units 01 1 AIR AIR heat pump 01 2 AIR WATER Chiller 01 3 AIR WATER heat pump 01 4 WATER WATER Chiller H01 5 water water heat pump with rev on gas 0 0 0 0 0 6 water water heat pump with rev on water 7 air cooled condensing unit 8 air cooled condensing unit with reversal on gas circuit 9 water cooled condensing unit 10 water cooled unit condensing with reversal on gas circuit H01 11 cooling only air air unit with electric heating Note Set H21 4 Condenser pump always on if HO2 1 Two condensers Number of condenser fan circuits water condensers H02 This establishes the number of fan circuits present in the configurations with two circuits With one fan circuit HO2 0 the unit may have 1 or 2 refrigerant circuits with one refrigerant circuit the fans are exclusively controlled based on the pressure or temperature read by the sensor in the first circuit with two refrigerant circuits the fans are controlled based on the higher temperature pressure of the two circuits In heat pump mode the output depends on the
124. s advanced technological level needs a phase of definition configuration programming commissioning so that it can function at its best for the specific application The lack of such phase of study as indicated in the manual can cause the final product to malfunction of which CAREL can not be held responsible Only qualified personnel can install or carry out technical assistance interventions on the product The final client must use the product only in the manner described in the documentation related to the product itself Without excluding proper compliance with further warnings present in the manual it is stressed that in any case it is necessary for each Product of CAREL To avoid getting the electrical circuits wet Rain humidity and all types of liquids or con densation contain corrosive mineral substances that can damage the electrical circuits In any case the product should be used and stored in environments that respect the range of temperature and humidity specified in the manual Do not install the device in a particularly hot environment Temperatures that are too high can shorten the duration of the electronic devices damaging them and distorting or melting the parts in plastic In any case the product should be used and stored in envi ronments that respect the range of temperature and humidity specified in the manual Do not try to open the device in any way different than that indicated in the manual Do not dr
125. s only activated for warnings that is signals only which have no direct effect on the operation of the unit and the display does not show the alarm symbol bell Compressor N B The alarm relating to the circuit with the fault must not interact with the operation of the other circuit as long as the condenser is not shared in common 58 uC SE 030220426 rel 2 1 09 06 2010 HP1 High pressure circuit 1 The alarm is detected irrespective of the status of the pump and the compressors The compressors corresponding to circuit 1 are immediately stopped ignoring the set protection times the buzzer and alarm relay are activated and the display starts flashing The fans corresponding to the condenser in circuit 1 are activated at maximum speed for 60 s so as to oppose the alarm situation after which they are switched OFF This alarm may also be generated when the high pressure limit is exceeded valid only when the pressure transducer is fitted set by the parameter P18 which to be enabled must be greater than 3 0 bars due to the corresponding hysteresis HP2 High pressure circuit 2 As for HP1 but relating to circuit 2 LP1 Low pressure circuit 1 The alarm depends on P15 P7 and P3 P15 0 PO7 0 the alarm is detected only if the compressors in circuit 1 are ON and after the time P03 from when the compressors started otherwise it is immediate 5 1 PO7 0 the alarm is detected even if the compressors in circuit 1 are of
126. signal error meaning and solution red LED flashing Flat batteries atthe The batteries are flat the copying cannot be carried out beginning of the Replace the battery only on PSOPZKEYO0 copying green LED Flat batteries at The copying operation has been carried out correctly but at flashing the end of the the end of the operation the voltage of the batteries is low copying only on It is advisable to replace the batteries PSOPZKEY00 Alternate red Not compatible The setup of the parameters cannot be copied since the green LED instrument model of the connected parameters is not compatible Such flashing error happens only with the DOWNLOAD function check the orange signal controller code and make the copy only on compatible codes red and green Copying Error in the copied data Repeat the operation ifthe problem LEDs ON error persists check the batteries and the connections of the key red LED always Data transmission The copying operation hasn t been completed because ON error of serious data transmission or copying errors Repeat the operation if the problem persists check the batteries and the connections of the key LEDs OFF Batteries Check the batteries for the PSOPZKEY00 disconnected Power supply not Check the power supply for the PSOPZKEYAO connected Table 7 d Technical specifications Power supply to the Use three 1 5 V 190 mA batteries Duracell D357H or equivale
127. ssors in cooling When the heating or cooling signal is received first the evaporator pump outlet fan starts always ON and then the compressor after the set times c07 c08 The pump will not be stopped until all the compressors are Off QT ese 22 Cooling heating digital input H06 Establishes whether the cooling heating selection from digital input is enabled see parameters P08 PO9 P10 P11 P12 and P13 The open status places the unit in cooling operation vice versa in heating D IN Open Cooling D IN Closed Heating ON OFF digital input H07 Establishes whether the ON OFF selection from digital input is enabled or disabled If the selection is enabled H07 1 the open status switches the unit Off while in the closed status the unit may be OFF or ON as controlled by the keypad This parameter is not valid for condensing units uC SE network configuration HO8 Establishes the layout of the tLan network 0 uC SE only 1 CSE valve 2 uC SE exp 3 uC2SE exp 2 valves 4 uC2SE exp 1valve Enable keypad H09 Used to disable the modification of the DIRECT and USER parameters from the keypad The value of the parameters can always be displayed The enable disable cooling heating and reset counter functions are also available Values 0 keypad disabled 1 keypad enabled default Serial address H10 Establishes the address of the instrument for th
128. t or due to negligence or other responsibility originating from the installation use or inability of use of the product even if CAREL or its branch offices affiliates have been warned of the possibility of damage Disposal of the product In reference to European Community directive 2002 96 EC issued on 27 January 2003 and the related national legislation please note that 1 we cannot be disposed of as municipal waste and such waste must be collec ted and disposed of separately 2 the public or private waste collection systems defined by local legislation must be used In addition the equipment can be returned to the distributor at the end of its working life when buying new equipment 3 the equipment may contain hazardous substances the improper use or incorrect dispo sal of such may have negative effects on human health and on the environment 4 the symbol crossed out wheeled bin shown on the product or on the packaging and on he instruction sheet indicates that the equipment has been introduced onto the market after 13 August 2005 and that it must be disposed of separately 5 in the event of illegal disposal of electrical and electronic waste the penalties are speci fied by local waste disposal legislation uC SE 030220426 rel 2 1 09 06 2010 ENGLISH I n O Zz Ww 4 uC SE 030220426 rel 2 1 09 06 2010 Content 1 INTRODUCTION li General SSCH OE OM faces atecageessceree meer
129. t on the terminal During defrost automatic changeover is disabled Only when the defrost ends can the operating mode change The same is true for the autostart function in antifreeze see A10 At power on the controller operates in the previous mode if the probe reading is within the hysteresis 24 r07 and 24 r07 otherwise it starts with the new mode Air air units On this type of unit the changeover probe decides both cooling heating mode and the compressor steps and as a consequence parameter RO6 has no meaning when changeover is enabled If the changeover probe reading is out of range the probe alarm is activated and the outputs are deactivated If r07 0 the differential for reversing the cycle is dictated by the first compressor step differential Key 1 changeover 2 changeover probe r23 3 heating 4 cooling Outside temperature set point to stop compressors r25 To avoid energy efficiency lower than electrical heating the compressors are stopped if the outside temperature falls below r25 the differential to start them again is set to 1 degree The heaters can then be activated according to the corresponding set point Setting 25 to 40 default value disabled the function uC SE 030220426 rel 2 1 09 06 2010 53 ENGLISH Example of changeover for air water and water water units 1 rO7 rO7 1 i La ai r04 r24 r02 Fig 5 b Example of changeover for air air un
130. t set point in freecooling conditions A13 With freecooling active and only when the compressors are off this represents the outlet limit When the compressors are on even if freecooling is active the outlet limit alarm is bypassed and the antifreeze alarm is used Antifreeze alarm set point from EVD A14 With the EVD connected in the tLAN A14 represents the evaporation temperature sent by the EVD below which the antifreeze alarm is activated when the alarm is active the compressors in the circuit affected are switched off while the pump remains on to reduce the possibility of freezing Manual reset or automatic depending on parameter P05 only occurs when the water temperature returns within the operating limits that it exceeds A14 A02 Probe readings parameters B Select probe to be shown on display b00 Sets the probe reading to be displayed 0 probe B1 1 probe B2 2 probe B3 3 probe B4 4 probe B5 5 probe B6 6 probe B7 7 probe B8 8 set point without compensation 9 dynamic set point with possible compensation 10 remote ON OFF digital input status For the list of parameter probe associations see Table 4 d Note probes that are not present cannot be selected Compressor settings parameters c Minimum ON time c01 This establishes the time that the compressor must remain ON for when started even if the stop signal is sent Key 1 signal 2 compressor 3 min ON time interval
131. tarted after the set time from when the unit starts Key 1 inlet fan 2 pump 3 compressor 4 time delay between pump inlet fan and compressor Pump outlet fan air air start delay from compressor OFF c08 In cooling and heating operation if the operation of the pump outlet fan is subject to the controller parameter H05 2 when the compressor is requested to stop the control first stops the compressor and the pump outlet fan If the pump outlet fan is always ON HO5 1 it is only stopped in standby mode Key 1 compressor 2 pump 3 inlet fan 4 time delay between pump inlet fan and compressor Maximum tandem compressor operating time c09 In the case of two compressors in tandem per circuit one compressor should not operate for longer than the time set for c09 while the other compressor in the circuit is OFF This prevents the oil shared in common from migrating over the allowed limit towards the active compressor and consequently avoids damage when inactive compressor next starts FIFO logic due to poor lubrication As a result compressor 1 or 2 in circuit 1 if requested to operate continuously will actually stop OFF after the time c09 and hand over to compressor 2 or 1 that was previously OFF This function always considers the compressor times Any value lower than the time set for c03 will be ignored and the compressors if the above condition is satisfied will switch over after the time c03
132. tep 1 heating step 1 P27 C5 alarm alarm alarm alarm alarm alarm P28 C6 compressor 3 compressor 3 compressor 3 compressor 3 compressor 3 compressor 3 compressore 3 C7 2 step heater P29 2 step heater compressor 4 P29 C8 open freecooling open freecooling open freecooling open freecooling open freecooling open freecooling P30 freeheating freeheating freeheating freeheating C9 reversing valve 2 humidifier ON OFF condenser fan 2 1 step heater heating step 2 humidifier P31 C10 close freecooling close freecooling close freecooling close freecooling close freecooling close freecooling P32 freeheating freeheating freeheating freeheating 46 Parameters P25 to P32 can have the following meanings 0 no function associated with the relay 1 compressor 2 2 Heater 1 3 Reversing valve 1 4 Pump inside fan 5 Open freecooling freeheating 6 Close freecooling freeheating 7 Humidifi er 8 Condenser fan 1 on off 9 Heater 2 0 Alarm 1 Boiler contact 2 compressor 4 3 Reversing valve 2 6 Warning 4 Pump inside fan 2nd evaporator 5 Condenser fan 2 on off 7 Condenser pump Backup uC SE 030220426 rel 2 1 09 06 2010 Capacity control logic H12 Specifies the logic for the activation of the capacity control steps for the compressors and the 4 way reversing valve H12 0 4 way reversing valve and capacity control normally energised H12 1 4 way reversing valv
133. the antifreeze heaters In the air air units HO1 0 it only represents the set point for the heating heaters In heat pump mode H1 5 10 this represents the set point for the antifreeze heater and the antifreeze probe becomes B3 B7 Antifreeze heater auxiliary heater differential in heating A09 Represents the differential for the activation deactivation of the antifreeze heater in defrost auxiliary heater in heating The differential is the same for both heaters Automatic start for antifreeze A10 This parameter is valid when the unit is in standby The operating mode switchover delay times are ignored A10 0 function not enabled A10 1 Auxiliary heater and pump are ON at the same time based to the respective set points A04 or A08 according to the settings of the antifreeze or auxiliary heaters the exception is when H01 1 in cooling in which case not even the pump will be activated Each circuit in the case of two evaporators will be controlled based on its own probe B2 B6 A10 2 pump and auxiliary heater ON independently based on the respective set point A04 or AO8 If the temperature falls below the antifreeze alarm set point A01 the unit is started in heating mode controlling the steps compressors based on the set point A01 and differential A02 in proportional mode Each circuit when there are 2 evaporators will be controlled using its own probe B2 B6 A10 2 pump and support heaters activated together based
134. the cooling time bands are ignored The second set point from external contact input has priority over the second cooling set point from external contact and heating set point from time band Start hours for low noise in cooling t14 Start hours for low noise in cooling Start minutes for low noise in cooling t15 Start minutes for low noise in cooling End hours for low noise in cooling t16 End hours for low noise in cooling End minutes for low noise in cooling t17 End minutes for low noise in cooling Start hours for low noise in heating t18 Start hours for low noise in heating Start minutes for low noise in heating t19 Start minutes for low noise in heating End hours for low noise in heating t20 End hours for low noise in heating End minutes for low noise in heating t21 End minutes for low noise in heating uC SE 030220426 rel 2 1 09 06 2010 57 6 TABLE OF ALARMS se Key to the table of alarms n if the probe is set for the compensation function in the event of probe faults the unit continues to oper
135. the two circuits start defrosting independently each according to their own temperature or pressure probe reading only if H2 1 d15 1 the two circuits start defrosting when both have reached the start defrost conditions d15 2 the two circuits start defrosting when at least one of the two has reached the defrost conditions d14 0 d14 d14 2 d15 0 OK OK OK d15 1 OK OK OK d15 2 Not possible OK Not possible Tab 5 b Forced ventilation time at end defrost d16 If the parameter F13 2 as soon as the end defrost temperature or pressure is reached the fans are activated at maximum speed for the set time before the change in operating mode Only at the end of this time will the cycle switch back to heat pump mode with the normal management of the fans Defrost with compressors OFF Fan Defrost d17 This function allows the outside temperature to be exploited when sufficient to defrost the condenser outdoor evaporator In these conditions the unit rather than reverse the cycle simply turns OFF the compressors and activates the fans at maximum speed The start and end defrost conditions remain unchanged as does the use of any auxiliary heaters The parameter has the following settings d17 0 function disabled d17 gt 0 function enabled with relative set point which represents the minimum defrost temperature set by the manufacturer Above the set point the unit performs the Fan Defrost uOSE
136. this procedure the compressor protection times are ignored and consequently the compressor is stopped and subsequently restarted immediately If d12 0 the compressor is not stopped and the reversing valve is switched immediately Waiting time after defrost delay in switching from cooling to heating d13 At the end of the defrost cycle the unit stops the compressor for a time d13 selectable from 0 to 3 minutes When the compressor stops the four way valves is switched reversing of the cycle after a time equal to d13 2 this waiting time allows the pressure to balance and the outdoor coil to drip In this procedure the compressor protection times are ignored and consequently the compressor is stopped and subsequently restarted immediately If d13 0 the compressor is not stopped and the reversing valve is switched immediately End defrost with two gas circuits 1 fan circuit d14 This parameter is used to select in units with two refrigerant circuits and one fan circuit the end defrost mode d14 0 default the two circuits end the defrost independently each according to their own temperature or pressure probe reading only if H2 1 d14 1 when both the circuits have reached the defrost condition d14 2 when one of the two circuits has reached the end defrost condition Start defrost with 2 circuits d15 This parameter is used to select whether to defrost the two circuits together or separately d15 0 default
137. tial is set at 2 Cand the alarm is reset automatically the warning relay is activated signal only and the message Ht is shown When starting the system this alarm is ignored for the time P17 If the system start up protection is enabled see parameter P20 and the alarm is activated the time P17 is ignored and the alarm has no hysteresis uC SE 030220426 rel 2 1 09 06 2010 the high and low pressure alarms are managed in the same way both for the transducers and the pressure switches digital input if the unit is in standby the count 3 times in one hour is reset ENGLISH note 1 if P08 is set to 10 the change in state considers the times d12 and d13 and respects the compressor protection times both from the digital input and the keypad note 2 if the digital input is used to switch the unit ON OFF or change the operating mode these functions are disabled on the keypad note 3 ID5 for the condensing unit with reverse cycle has the function of cooling heating changeover 49 ae n UO Zz Ww 50 High temperature alarm delay on power up P17 High temperature alarm delay when the control is switched on power ON from the remote ON OFF contact or from the keypad High pressure alarm from transducer set point P18 Sets the value beyond which the high pressure alarm is generated Each circuit will be managed by its own transducer P18 0 the function is disabled For all other values g
138. ting conditions are not present 6 only if the freecooling conditions are not present 7 always r41 Minimum damper opening F 0 100 1 0 120 327 Integer R W r42 Freecooling operating threshold with compressors disabled U A07 1760 C F 10 1 50 g 81 R W 181 Analog r43 Heater set point F 0 3 1 0 121 328 Integer 0 A4 A8 and A11 absolute values R W 1 A4 absolute value A8 and A11 values relative to the set point 2 A4 value relative to the set point A8 and A11 absolute values 3 A4 A8 and A11 values relative to the set point r44 Inactivity time in Freecooling control F 0 240 1 5 5 123 330 Integer R W Table 4 k uC SE 030220426 rel 2 1 09 06 2010 31 4 3 12 Timer setting parameters t display parameter and description default min max U M variat def visibility supervis Modbus variabile I indicat evel variable ype n 01 RTC hours U 0 23 h 0 W 129 R W 1336 nteger D 02 RTC minutes U 0 59 min 0 W 130 R W 1337 nteger 03 RTC day U 1 31 g 1 W 131 R W 1338 nteger U 04 RTC month U 1 12 mesi 1 W 132 R W 1339 nteger 2
139. to memory on the E2P DIC 1 difference between outside exchanger temperature B3 and outside temperature B4 this implies the configuration of a dedicated probe optional setting It is calculated whenever condenser fan 1 runs at maximum speed for 30s irrespective of the status of the compressors DTC 2 calculated only when there are 2 condensers difference between outside exchanger temperature B7 and outside temperature B4 this implies the configuration of a dedicated probe optional setting It is calculated whenever condenser fan 2 runs at maximum speed for 30s irrespective of the status of the compressors With proportional inlet control the dynamic set point STD and the corresponding proportional band are adapted according to the DTE With outlet control and dynamic logic that is dead zone and activation deactivation times the dead zone has a dynamic value In this case too control will be optimised according to the actual DTE measured Minimum DTE value allowed H17 Even if there is not danger involved beyond the limit a warning is sent dEL to check the water flow rate which is perhaps too high or low condenser efficiency Maximum DTE value allowed H18 Maximum value allowed for DTE above the limit the evaporator risks freezing the anomalous behaviour is signalled by dEH Maximum DTC value allowed H19 Maximum value allowed for DTC above this value the condenser may be dirt
140. ture probe evaporator 1 and 2 outlet evaporator probe 1 and 2 antifreeze heater 1 and 2 compressor 1 high pressure 1 and 2 compressor overload 1 and 2 low pressure 1 and 2 inlet evaporator probe compressor 2 water pump reversing valve 1 and 2 compressor 3 compressor 4 ENGLISH Vlo NIANA J Ro BIN ID MN A Ww IN o Fig 3 d b 3 4 3 two circuits 1 condenser fan circuit A m condenser fan overload fan condenser probe 1 and 2 flow switch outlet temperature probe evaporator 1 and 2 outlet evaporator probe 1 and 2 antifreeze heater 1 and 2 compressor 1 hih pressure 1 and 2 compressor overload 1 and 2 low pressure 1 and 2 inlet evaporator probe compressor 2 water pump reversing valve 1 and 2 compressor 3 compressor 4 Oo JW IN SINAVA wIN o Fig 3 d c uOSE 030220426 rel 2 1 09 06 2010 15 I n O Zz Ww 1 2 3 4 5 6 7 8 Key water condensing temperature probe condensator flow switch outlet evaporator probe evaporator antifreeze heater inlet evaporator probe compressor 1 high pressure compressor overload low pressure water pump compressor 2 water condensing temperature probe 1and2 condensator 1 and 2 flow switch outlet evaporato
141. um time at the start of the differential for the activation of the compressors l l Activation delay at upper limit of r07 if r06 4 ib a ia 1 Fo oo r09 The value set is used in the control algorithm see timed outlet temperature control as the i temperature minimum time at the end of the differential for the activation of the compressors Lal r03 r03 r12 Activation time cooling dead zone comp act The activation time is not a set parameter but rather the combination of two set parameters that Fig 5 be EEE is r08 and r09 When the temperature leaves the dead zone the activation time is equal to r08 while at the end of the differential r02 the activation time is equal to r09 Inside the differential r02 the activation time varies linearly between r08 and r09 This means that as the temperature moves away from the set point the times are reduced and the esponse of the process becomes more dynamic Deactivation delay at upper limit of r12 if r06 4 r10 The value set is used in the control algorithm see timed outlet temperature control as the maximum time at the set point for the deactivation of the compressors Deactivation delay at lower limit of r12 if r06 4 r11 The value set for this parameter is used in the control algorithm see timed outlet temperature control as the minimum time at the end of the deactivation differential for the deactivation of the compressors uC SE 030220426 rel 2 1
142. ure the configuration will be lost The buzzer and the alarm relay are not activated If the occurs when starting the unit EPb the controller will not operate ESP communication error with expansion card If the controller loses communication with the expansion card the entire system will be stopped to avoid adversely affecting the unit The alarm relay is activated and the display will show the message with the red LED on steady EL1 2 warning zero crossing error circuit 1 2 If the controller detects errors in the power supply control may be lost over the fan speed In this case the display will show a warning and the fans will be controlled at maximum speed The alarm is reset automatically so as to not affect the operation of the unit If the expansion card is used the warning relay is activate dF 1 2 warning end defrost circuit 1 2 due to maximum time If the defrost ends after the maximum time when end defrost by temperature or from external contact has been selected the unit displays the text dF1 for circuit 1 or dF2 for circuit 2 The message is cancelled using the delete alarm procedure or when the next correct defrost cycle is completed The buzzer and the alarm relay are not activated If the expansion card is used he warning relay is activated if used A1 antifreeze alarm outlet limit circuit 1 The alarm is only detected in water chillers H01 2 3 4 5 or 6 by the evaporator water outlet probe B2 B6 or
143. y chiller or dirty frozen heat pump uOSE 030220426 rel 2 1 09 06 2010 47 ENGLISH ae n UO Zz Ww Part load in low pressure parz LP 1 bar 15 bar 2 bar F08 F09 pressure Fig 5 b b 48 Function of the second pump H21 This parameter defines how the output dedicated to the second pump must be managed H21 0 the second pump is disabled H21 1 the second pump is used only as a backup If the flow switch and corresponding alarm are activated the pumps are switched over if the alarm passes a warning is shown on the display and the warning relay is activated while the unit continues to operate with the Backup pump When the next alarm is activated the pumps will be switched over ifthe alarm remains active even with the second pump on for longer than the time set for P1 the generic alarm is generated and the unit is switched OFF H21 2 the second pump represents a backup pump The two pumps are never used at the same time but each 24 hours are switched over In the event of flow alarms the logic is the same as for setting 1 After being switched over due to the flow alarm the 24 hour timer is set to zero H21 3 the second pump is used as an ON OFF device in the same way as the condenser fan which in this case is not present in ON OFF mode with the same settings in fact in this case the pump replaces the fan including the symbol H21 4 the second pump is used for the condenser but is

User manual - Oasis Heat Pumps

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