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wwr mtd2 bwr mtd2 0011÷0121 installation - operating

1. 0 818 5 SLOVLNOO2 32078 WNINYAL H3TIVISNI SGISNI 4 Saisino EN 03 2011 WWR MTD2 BWR MTD2 SYSTEM CONFIGURATION U System number 0 Parameter configuration Description Menu Gelee Default Pu UOM System type table 1 Mn01 0101 0 0 SYSTEM compensation curves in heating mode Enable SYSTEM compensation curve 0 7 Disabled Mn01 0152 0 12 Enabled SYSTEM compensation curve number Mn01 0159 1 Enable room temperature influence on SYSTEM 0 Disabled Mn01 0163 0 12 Enabled SYSTEM Room Authority Mn01 0164 30 MINIMUM return set point limit for SYSTEM curve Mn01 0165 30 MAXIMUM return set point limit for SYSTEM curve Mn01 0166 48 SYSTEM compensation curves cooling mode Enable SYSTEM compensation curve 0 7 Disabled Mn01 0154 0 12 Enabled Maximum return temperature set point limit in cooling mode Tm1 Mn01 0128 25 Minimum outside temperature corresponding to max return temperature Te1 E Minimum return temperature set point limit in cooling mode Tm2 1 0130 23 Maximum outside temperature corresponding to min return temperature Te2 ind d e Ke Contact HL1 configuration secondary circ
2. Power supply Total power consumption Icc 1 A Fuses 5x20T 250V Mods V Ph Hz ELLI ELA TA L R A FU1 FU3 FU5 FUG BWR 0011ms MTD2 230 50 3 13 14 7 26 4A 1 25 BWR 0025ms MTD2 230 50 4 35 19 4 37 4A 1 25 BWR 0031ms MTD2 230 50 5 47 25 8 44 4A 1 25 BWR 0041ms MTD2 230 50 6 76 35 1 45 4A 1 25 BWR 0025t 0025ts MTD2 400 3N 50 4 10 10 0 35 16 4A 1 25 BWR 0031t 0031ts MTD2 400 3N 50 5 14 11 6 48 22 4A 4A 4A 1 25 BWR 00441t 0041ts MTD2 400 3N 50 7 05 15 8 64 29 4A 1 25A BWR 0061t 0061ts MTD2 400 3N 50 8 58 18 3 75 34 4A 1 25 BWR 00711 0071ts MTD2 400 3N 50 10 9 25 1 95 43 1 25 BWR 0091t 009115 MTD2 400 3N 50 12 0 30 1 111 50 DA 1 25 BWR 01011 010115 MTD2 400 3N 50 14 3 34 3 118 53 1 25 BWR 0121t 012115 MTD2 400 3N 50 17 3 39 3 140 63 1 25 F L I Maximum power input F L A Maximum current input L R A Start up current Maximum values for sizing the protection switches and power supply cables ms ts Unit with single phase three phase peak limiter Fuse 6 3x32T 250V EN 03 2011 WWR MTD2 BWR MTD2 EEJ INSTALLER CONNECTIONS
3. OCH 9 1 11 12 13 21122 23124 25 26 27 28 29 30 33 34 39 40 41142 43 44 45 46 47 48 149150 51 52 53 54 55 56 57 58 INSTALLER TERMINAL BLOCK WWR MTD2 BWR MTD2 EN 03 2011 MAINS POWER SUPPLY CONNECTIONS UA To complete the electrical connections A Before connecting the unit to the power supply make sure that switch QF1 is open suitably padlocked and marked Open the front panel of the unit Fig A B C Fig A Remove the 2 screw caps situated on the unit s top panel then unscrew the 2 screws fixing the top panel without removing them unscrew until the panel can be moved lift the front panel around 10 mm so that the bayonet catches on the screws are released Fig B Slightly turn the front panel forwards Fig C remove the panel from the bottom catches Open the electrical panel as shown in Fig D Use cable gland A for the main electrical power cable and cable gland B for other external cables to be connected by B the installer Fig E Electrical cables must not enter the unit in positions not specifically described in this manual Avoid direct contact with non insulated copper piping and the compressor
4. A lt lt Ge 3aisino gt 1 E Ee T a SS tt it 11 y 11 Y 11 1 A 11 11 11 it 11 11 11 11 INI it 11 INI 3314055309 S31VOIONI T WOLONI 11 pt 11 10H 1 HM w Long x 11 nasa H3 In 5 Sv Wood T a 00 18 1 TROW HIMSNWAAL3AVS T ONY OH ID HOH 3994018 ewe H EE are n ba NWA G HOS SATA 0193738 1 V anwainan imor yaanvanouvean H T umm WLAN 8 OUVISOWHSHL HOLIMS wO G 1 Sv aariddns 9 54 HS13WOWH3HL 1 ammo f LINN D Sue N aonvosunseaua Q STOEWAS JHL OL A3M Water circuit di
5. WWR MTD2 BWR MTD2 EN 03 2011 MAINTENANCE AND SERVICE ALARM TABLE Alarm code Cause Solution nues Humidity probe Ge Ee 125 EES GE sieut NM 126 EE Get ie 127 Humidity probe NET HIG ma e 128 HERE GE PNE 129 e PS Ee The heat pumps be fitted with a single phase or three phase peak limiter to reduce compressor start up current Peak limiter single phase The LED on the peak limiter identifies different operating or alarm conditions based on the sequence of flashes 2 flashes every 5 sec line voltage present correct operation LED on for 5 sec and LED off for 5 sec peak limiter faulty quick flashes for 10 sec line voltage out of range EN 03 2011 WWR MTD2 BWR MTD2 MAINTENANCE AND SERVICE SYSTEM emergency operation If the heat pump is not working correctly or the compressor has shut down emergency operation can be activated Emergency operation involves heating the water using the electric heaters available on the system outlet storage tank The compressor remains off To enable manual operation of system heaters set parame ter 0620 1 manual Description Menu Parameter Default UOM no Type of outlet electric heater oper Mn01 010G 1 ation 0 Supplementary 1 Replacement Enable manual heater operation Mn06 0620 1 Set the parameters following the sequence described in the
6. 30 25 System circuit temperature difference minimum 4 K 3 5 7 9 11 13 15 17 maximum 8 Source outlet temperature Source circuit temperature difference minimum 3 COOLING WWR MTD2 20 18 c 16 System outlet temperature C System circuit temperature difference minimum 4 K maximum 8 K Source outlet temperature C Source circuit temperature difference minimum 3 K 27 30 33 36 39 42 45 48 51 HEATING BWR MTD2 60 55 50 45 40 35 System outlet temperature C 30 System circuit temperature difference minimum 4 K maximum 8 K Source outlet temperature C Source circuit temperature difference minimum 3 K COOLING BWR MTD2 System outlet temperature C System circuit temperature difference minimum 4 K j maximum 8 K 5 36 M 38 46 42 Source temperature difference minimum 5 maximum 8 Source outlet temperature Maximum glycol content 40 WWR MTD2 BWR MTD2 EN 03 2011 PUMP CURVE AVAILABLE PRESSURE HEAD CURVES SYSTEM CIRCUIT WWR MTD2 0011 rve 3 50 Curve 2 30 20 Curve 1 10 0 0 1 Water flow rate m h Available pressure head kPa AVAILABLE PRESSURE HEAD CURVES SYSTEM CIRCUIT WWR 2 XE 0025 90 80 Curve 3 70 Curve 2 60
7. SA2 Remote cooling heating Cooling heating operating mode can be managed from a remote control unit If remote cooling heating changeover is enabled the operat ing mode cannot be changed on the keypad Set the following parameters Description Menu Parameter Value to be UOM no set Enable remote contact Mn01 0100 0 0 remote contact enabled 1 remote contact disabled only from keypad Contact closed Cooling Contact open Heating SA3 Remote system domestic water priority The priority of heat pump operation can be selected using a remote contact Use a switch to select the following functions Contact closed Domestic hot water only Contact open Domestic hot water System Set the following parameters Description Menu Parameter Value to be UOM no set Enable remote contact Mn01 0100 0 0 remote contact enabled 1 remote contact disabled selection from keypad only EN 03 2011 WWR MTD2 BWR MTD2 INSTALLER CONNECTIONS U SA5 Deactivation contact for excess power con sumption The heat pump accepts an external deactivation signal from contact SA5 if a power consumption management system is used to disconnect devices based on set priority thus avoid ing activation of the contactor on the power meter Configure the contact selecting the desired function by set ting parameter 015D Descri
8. D CO CO D D CO CO O DO CO O O It is hereby declared that the site and access to the site where the unit to be operated or serviced is installed has been made safely accessible in compliance with all safety standards specified by Italian law 81 08 in force A supervisor must be present on site to inform workers of residual risks in the workplace WARNING Failure to complete commissioning due to causes not attributable to the unit will require a second visit to be charged to the cus tomer directly by the local service centre Installer s signature Date J WWR MTD2 BWR MTD2 EN 03 2011 Climaveneta Via Sarson 57 c 36061 Bassano del Grappa VI Italy Tel 39 0424 509500 Fax 39 0424 509509 info climaveneta com www climaveneta com Climaveneta France 3 Village d Entreprises ZA de la Couronne des Pr s Avenue de la Mauldre 78680 Epone France Tel 33 0 1 30 95 19 19 Fax 33 0 1 30 95 18 18 info climaveneta fr www climaveneta fr Climaveneta Deutschland Rhenus Platz 2 59439 Holzwickede Germany Tel 49 2301 91222 0 Fax 49 2301 91222 99 info climaveneta de www climaveneta de Climaveneta Espana Top Clima Londres 67 1 4 08036 Barcelona Spain Tel 34 963 195 600 Fax 34 963 615 167 topclima topclima com www climaveneta com Climaveneta Chat Union Refrig Equipment Co Ltd 88 Bai Yun Rd Pudong Xinghuo New dev zone 201419 Shanghai China Tel 008 621 575
9. INSTALLER CONNECTIONS U H Boiler activation delay time 0618 Integration time 0619 System outlet temperature set point Actual water temperature System HP control hysteresis Boiler ON Compressor OFF Once the boiler has been enabled supplementary heating is activated when the integration time set for parameter 0619 is reached and the delay time 0618 has elapsed The delay time is ignored when the unit is first started Example Value 0619 600 C sec Outlet temperature set point 50 C Actual temperature 40 C 50 40 x 60 sec 600 Csec gt Boiler ON Low values of 0619 mean frequent activation of the boiler Too high values of 0619 mean long delays in activating the boiler WWR MTD2 BWR MTD2 EN 03 2011 INSTALLER CONNECTIONS KM4 DHW storage electric heater An electric heater can be managed for heating the DHW storage DHW storage electric heater control The electric heater is activated to reach a temperature value that the heat pump on its own is not able to reach Example Domestic hot water temperature produced with heat pump 0023 55 C Domestic hot water temperature produced with electric heater 0209 65 C The electric heater works so as to increase the DHW stor age temperature from 55 C to 65 C figure 1 Domestic hot water electric heater Description Menu Parameter Value
10. Room relative humidity value to start 1 increasing water outlet temperature set point ZONE LT2 0187 70 Maximum outlet temperature hys Mn01 teresis corresponding to 100 rela tive humidity Enable compensation for room humidity ZONE LT3 0 Disabled 1 Enabled Mn01 0188 012N C Room relative humidity value to start Mn01 increasing water outlet temperature set point ZONE LT2 012P 70 Maximum outlet temperature hys Mn01 teresis corresponding to 100 rela tive humidity 012R C CONTROL AND OPERATING CHARACTERISTICS Automatic mode changeover based on outside a N temperature ex oo In Auto mode the operating mode heating cooling 290 changes automatically avoiding the need for the user to Ing a change the mode manually i 030 Mode changeover is based on the diagram shown the fig P C tA wA 7 The centre zone A corresponds to an area of inactivity as the outside climate conditions mean neither heating nor cooling is required Heatin Coolin ON g g A OFF 0106 16 0108 26 Outside temp 0106 0107 18 0108 0109 24 C Description Menu Parameter Default UOM no Automatic mode changeover set 01 0106 16 C point in HEATING Automatic mode changeover dif Mn01 0107 2 C ferential in HEATING Automatic mode cha
11. Time Time Time Time band 1 band2 band4 CX ni Time Time band 5 band 6 Activating time bands Press the C button The symbol is displayed Time band ACTIVE Deactivating time bands 5 jam IT e 230 Wed Press the button The symbol is no longer displayed Time band DEACTIVATED Once the time bands have been deacti vated check that the room set point is at the required value otherwise turn the knob to select the desired temperature EN 03 2011 WWR MTD2 BWR MTD2 OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER Switching OFF The button disables operation of the pump or the zone valve controlled by the room controller the heat pump is deactivated using the mode button as shown in Selecting the operating mode 721 1 COU 10 30 Wed ZONE fr 1 IJ tehte 050 Wed Press the button for seconds ZONE OFF ACCESSING THE PROGRAMMING LEVELS The room controller has a menu structure divided into levels so as to allow access only to authorised users as shown below Level Password Menu description Menu code User 012 Room unit Mnu00 022 Zone room terminal address setting Addr System
12. 50 40 Curve 1 30 20 10 0 0 1 2 Water flow rate m h Available pressure head kPa AVAILABLE PRESSURE HEAD CURVES SYSTEM CIRCUIT WWR 2 XE 0031 120 100 80 60 40 Available pressure head kPa 20 Curve 1 Curve 2 0 0 1 2 3 Water flow rate m h AVAILABLE PRESSURE HEAD CURVES SYSTEM CIRCUIT WWR 2 XE 0041 120 100 80 60 40 Curve 2 20 Curve 1 0 0 1 2 3 Water flow rate m h Available pressure head kPa The pressure head refers to the values at the fittings EN 03 2011 WWR MTD2 BWR MTD2 8 AVAILABLE PRESSURE HEAD CURVES SYSTEM CIRCUIT WWR 2 0061 120 100 80 60 40 20 Available pressure head kPa 0 0 1 2 3 4 5 Water flow rate m h AVAILABLE PRESSURE HEAD CURVES SYSTEM CIRCUIT WWR MTD2 XE 0071 0091 0101 0121 250 200 150 100 Available pressure head kPa 50 Water flow rate m h SOURCE HEAT EXCHANGER PRESSURE DROP WWR MTD2 XE 0025 T 0011 0031 0041 0061 0071 0091 0101 0121 120 T a 90 v 5 2 60 n D 20 0 0 2 4 6 8 10 12 14 Water flow rate m h The pressure head refers to the values at the fittings WWR MTD2 BWR MTD2 EN 03 2011 PUMP CURVE AVAILABLE PRESSURE HEAD CURVES SYSTEM CIRCUIT BWR MTD
13. Enable compensation curve for zone LT2 07 Disabled 1 Enabled Mn01 0184 Fixed water outlet temperature set point for LT2 in HEATING Mn01 0185 Enable compensation for room humidity ZONE LT2 0 Disabled 1 Enabled Mn01 0186 Room relative humidity value to start increasing water outlet temperature set point ZONE LT2 Mn01 0187 K Maximum outlet temperature hysteresis corresponding to 100 relative humidity Mn01 0188 Zone LT2 compensation curve number Mn01 0189 Enable room temperature influence on LT2 07 Disabled 1 Enabled Mn01 0193 LT2 Room Authority Mn01 0194 MINIMUM outlet set point limit for compensation curve zone LT2 Mn01 0195 MAXIMUM outlet set point limit for compensation curve in zone LT2 Mn01 0196 Electric heater operating mode 0 heat pump only 1 electric heater only 2 heat pump electric heater Mn02 0202 Domestic hot water set point with heater Mn02 0209 Domestic hot water temperature set point for Legionella prevention Mn02 0211 Legionella prevention cycle day MONDAY 0 1 Mn02 0213 Legionella prevention cycle day TUESDAY 0 no 1 yes Mn02 0214 Legionella prevention cycle day WEDNESDAY 0 1 yes Mn02 0215 Legionella prevention cycle day THURSDAY 0 1 yes Mn02 0216 Legionella prevention cycle day FRIDAY 0 1 yes Mn02 0218 Legionella prevention cycle day SATURDAY 0 1 Mn02 0219 Legionella prevention cycle day SUNDAY 0 1 yes Mn02 0220 Legi
14. Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri P Be GROUP OF 7 DAYS GROUP OF 5 DAYS GROUP OF 2 DAYS INDIVIDUAL DAY A Turn the knob A Turn the knob A Turn the knob A Turn the knob B Press the knob to confirm B Press the knob to confirm B Press the knob to confirm B Press the knob to confirm Time band 1 Time band 1 start hours Time band 1 start minutes Time band 1 room temp set point Press the knob to confirm A Turn the knob A Turn the knob A Turn the knob B Press the knob to confirm the B Press the knob to confirm the B Press the knob to confirm hour value minutes value WWR MTD2 BWR MTD2 EN 03 2011 Time band 2 Press the knob to confirm Continue as described from step 8 to step 11 to set the hours minutes and room tem perature set point for the other time bands De Once the time bands have been Press the button twice until set reaching the main display A Turn the knob and select ESC B Press to confirm Main display Press the button to exit programming mode Time band program example Below is an example of a time band program with two temperature levels Comfort 20 Economy 18 and OFF 20 18 KH
15. Parameter Value to be UOM no set Enable the contact as Mn01 015A 3 0 Alarm signal 1 Dehumidifier 3 Secondary circuit pump Dehumidifier A dehumidifier can be activated in radiant panel systems to reduce humidity in cooling mode The contact closes and the dehumidifier is activated when the humidity measured by the probe on the A5 room con troller exceeds the value set for parameter 0172 Configure the contact selecting the desired function by set ting parameter 015A Description Menu Parameter Value to be UOM no set Enable the contact as Mn01 015A 1 0 Alarm signal 1 Dehumidifier 3 Secondary circuit pump WWR MTD2 BWR MTD2 EN 03 2011 1 Storage tank 2 System pump Dehumidifier INSTALLER CONNECTIONS HL2 Compressor ON signal A remote visual signal device can be activated to indicate compressor operation SA1 Remote ON OFF The unit can be switched on off from a remote control unit for example a timer or room thermostat The remote off function stops the compressor fan and pumps while frost protection remains active The unit can be switched on off from contact SA1 only when the unit has been switched on using the mode but ton on the A5 room controller Contact closed Heat pump ON Contact open Heat pump OFF
16. Setting the time and date A ncc 0000 Mon Press the C button for 3 seconds Press the knob 2005 ma sin The hours flash Turn the knob to select the hour value The minutes flash Turn the knob to select the minutes value Press the knob to confirm The day flashes Turn the knob to select the day Press the knob to confirm Press the button to exit Main display Mon Lunedi Tue Martedi Wed Mercoledi Thu Giovedi Fri Venerdi Sat Sabato Sun Domenica WWR MTD2 BWR MTD2 EN 03 2011 OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER Switching ON The button enables operation of the pump or the zone valve controlled by the room controller the heat pump is activated by selecting the operating mode using the mode button as shown below ZONE OFF Press the button for 3 seconds ZONE ON aA L 10 90 Wed The heat pump is not yet operating the mode has to be selected heating cooling auto or domestic hot water production Selecting the operating mode Oo 1030 wa No operating mode selected Heat in OFF Automatic mode changeover P
17. must be installed probe BT9 only to be installed when supplementary Source is available Make sure the components listed above are not lost or mis placed AN The installation user maintenance manual is an integral part of the unit and should therefore be read and kept carefully EC WWR MTD2 BWR MTD2 EN 03 2011 RECEIVING AND HANDLING THE PRODUCT HANDLING UNPACKAGED UNITS When the packaging has been removed Remove the wooden base Fit the vibration damping feet accessories Handle the unit using equipment that is suitable for its weight in compliance with the safety standards in force and subsequent amendments Do not drag the unit as the feet may be damaged or break UNIT IDENTIFICATION UI The heat pump can be identified from PACKAGING LABEL Describes the product identification data Packaging label RATING PLATE mE an Describes the unit technical and performance specifications Shows the serial number used to uniquely identify the unit The serial number is also used to identify the unit s spare de parts Rating plate SE TP with serial number If service is required the following information must be pro vided to the service centre Model serial number year of production AN Installation and maintenance operations are much more difficult if the id
18. 055 66 Fax 008 621 575 057 97 Climaveneta Polska Sp 2 UI Sienkiewicza 13A 05 120 Legionowo Poland Tel 48 22 766 34 55 57 Fax 48 22 784 39 09 info climaveneta pl www climaveneta pl Climaveneta India Climate Technologies P LTD 3487 14th Main HAL 2nd stage Indiranagar Bangalore 560008 India Tel 91 80 42466900 949 Fax 91 80 25203540 sales climaveneta in Climaveneta UK LTD Highlands Road Shirley Solihull West Midlands B90 4NL Tel 44 0 871 663 0664 Fax 44 0 871 663 1664 Freephone 0800 801 819 response climaveneta co uk www climaveneta co uk CLIMAVENETA www climaveneta com COD C01001700E 03
19. 15 3 20 24 8 288 33 41 7 Total power consumption kW 1 73 2 34 2 99 3 62 2 21 2 75 3 71 4 61 5 85 643 7 61 9 5 COP 2 4 4 3 87 4 06 4 18 4 22 4 14 4 35 428 4 5 4 34 4 39 Heat exchanger water flow rate m h 1 19 1 6 2 02 2 54 1 59 1 98 2 65 3 48 4 3 5 01 5 73 7 25 Heat exchanger pressure drop kPa 13 2 19 1 29 4 324 18 8 28 6 352 35 7 37 7 33 45 1 452 Radiant panel cooling Rated cooling capacity kW 7 14 9 83 12 15 1 9 47 12 15 7 21 3 26 9 30 7 34 8 334 Total power consumption kW 1 55 1 95 2 55 3 28 1 84 245 3 31 4 13 523 6 6 97 8 44 EER 3 444 4 9 4 8 4 58 5 28 48 476 52 5 17 5 112 4 97 3 98 EER EN 14511 Heat exchanger water flow rate m h 1 23 1 7 2 07 2 6 1 64 2 07 2 71 3 67 4 63 5 29 6 01 5 75 Heat exchanger pressure drop kPa 14 2 21 3 31 33 9 198 31 2 369 39 8 43 8 369 49 6 284 Hydronic cooling systems Cooling capacity kW 5 17 7 16 8 84 11 3 7 34 8 88 11 8 15 7 198 229 26 334 Total power consumption kW 1 55 1 99 2 58 3 2 1 89 2 43 3 23 4 02 5 06 576 675 844 EER 4 3 47 3 6 3 38 3 53 3 84 3 71 3 69 3 93 3 88 3 95 3 82 3 96 ESEER Heat exchanger water flow rate m h 0 89 1 23 1 52 1 94 1 26 1 53 2 03 2 71 342 3 94 448 5 75 Heat exchanger pressure drop kPa 7 44 11 2 16 8 18 8 11 8 16 9 206 21 6 23 8 20 5 27 6 284 Other data Type of compressor SCROLL ON OFF Num
20. 21 7 21 4 224 19 6 269 274 Radiant panel cooling Rated cooling capacity kW 7 14 9 83 12 15 1 9 47 12 157 21 3 26 9 30 7 348 334 Total power consumption kW 1 55 1 95 2 55 3 28 1 84 245 3 31 4 13 523 6 6 97 8 44 EER 3 4 44 4 9 4 8 4 58 5 28 48 476 52 5 17 5 12 4 97 3 98 EER EN 14511 Heat exchanger water flow rate m h 1 23 1 7 2 07 2 6 1 64 2 07 2 71 3 67 4 63 529 601 5 75 Heat exchanger pressure drop kPa 14 2 21 3 31 33 9 19 8 31 2 369 39 8 43 8 36 9 496 284 Hydronic cooling systems Cooling capacity kW 5 17 7 16 8 84 11 3 7 34 8 88 11 8 157 198 229 26 334 Total power consumption kW 1 55 1 99 2 58 3 2 1 89 2 43 323 4 02 5 06 5 76 6 75 8 44 EER 4 3 47 3 6 3 38 3 53 3 84 3 71 3 69 3 93 3 88 3 95 3 82 3 96 ESEER Heat exchanger water flow rate m h 0 89 1 23 1 52 1 94 1 26 1 53 2 03 2 71 342 3 94 448 5 75 Heat exchanger pressure drop kPa 7 44 11 2 16 8 18 8 11 8 169 20 6 21 6 23 8 20 5 27 6 284 Other data Type of compressor SCROLL ON OFF Number of compressors n 1 1 1 1 1 1 1 1 1 1 1 1 Refrigerant R410A Refrigerant charge kg 1 1 1 15 1 24 1 55 1 15 1 24 1 55 17 2 65 34 3 5 3 7 Oil charge kg 1 1 1 25 1 25 1 24 1 25 1 25 1 24 1 89 2 51 3 25 325 325 Type of system pump Circulating Centrifugal Type of source pump Circulating Centrifugal System and DHW safety valve kPa 600 600 600 600
21. 5 X X X 2 Mn01 6 X X X X 2 Mn01 7 X X X X 2 Mn01 8 X X X X X 2 Mn01 9 X X 2 Mn01 10 X X X 2 Mn01 11 X X X 2 Mn01 12 X X X 3 Mn01 13 X X X X X X 3 Mn01 14 X X X X 3 Configuration 0 does NOT require additional expansion modules Configurations from 1 to 3 require 1 additional N EM1 expansion module Configurations from 4 to 11 require 2 additional N EM1 expansion modules Configurations 12 13 and 14 require 3 additional N EM1 expansion modules The water connection and wiring diagrams for configurations from 1 to 14 are shown on the instruction sheet enclosed with the N EM1 expansion module The parameters required for correct system operation can be set on the A5 room controller supplied with the heat pump The next few pages are divided into the following sections Section 1 WATER CIRCUIT DIAGRAM Section 2 WIRING DIAGRAM Section 3 PARAMETER CONFIGURATION EN 03 2011 WWR MTD2 BWR MTD2 EX o 2s Scu EK 2 o 2 el 070000 SOL Jayem 1
22. A094 End defrost due to maximum time Check connections A095 Temperature probe N THC n 2 Probe faulty or disconnected A096 Address setting error on zone remote terminal Check connections Check address Check connections A097 Temperature probe N THC n 3 Probe faulty or disconnected A098 Address setting error on zone remote terminal Check connections Check address Check connections A099 Temperature probe N THC n 4 Probe faulty or disconnected A100 Address setting error on zone remote terminal Chee Check address Check connections A101 Temperature probe N THC n 5 Probe faulty or disconnected A102 Address setting error on zone remote terminal Check address A Check connections A103 Address setting error on expansion module 1 Check address must be 1 A104 Low temperature zone LT1 temperature probe expansion 1 Probe faulty or disconnected Check connection A109 Low pressure alarm from low pressure switch Check refrigerant circuit pressure Check connections A114 Solar pool module address setting error Check addross A115 Solar pool module general alarm A116 Master unit not connected cascade control A117 Slave unit not connected cascade control A120 Water temperature too high in mixed circuit expansion module expansion module 3 Check connections A121 Temperature probe N THC n 6 Probe faulty or disconnected A122 Address setting error on zone LT3 remote terminal eannaptigns Check address
23. BWR MTD2 KA INSTALLER CONNECTIONS Outside air probe BT11 connection The outside air probe allows the system water temperature set point to be compensated during heating or cooling opera tion Installation instructions The outside air probe must be installed outside of the home not in direct sunlight away from flue gas discharges air outlets or doors and windows on a perimeter wall facing north north west at a minimum height of 2 5 metres above the ground or at most half way up the house Mounting method Open the cover of the sensor Attach a probe to the wall and the correct position as described above For the electrical connections see Connection diagram Re place the cover of the sensor TECHNICAL DATA Sensing element NTC 10Kohm 1 25 C Degree of protection IP65 Perm ambient carriage temperature 50 C 100 C Measuring range 50 C 100 C Materials PA 15 GK Colour RAL 9010 WWR MTD2 BWR MTD2 EN 03 2011 INSTALLER CONNECTIONS A5 room controller connection Installation instructions The room controller must be installed in the best reference position for temperature control Position the room controller as follows around 1 5 metres from the floor in a part of the room that allows the sensor to accurately
24. I Type model HEAT HEAT PUMP PUMP Secondary pump ke Installed Type model a Hot water set point Cold water set point Domestic hot water circuit EN LK PUMP PUMP Storage tank Storage Expansion with coil cylinder vessel eee B Volume I a Type model Coil water volume I gt Coil heat exchange area m SUME Domestic hot water set point WWR MTD2 BWR MTD2 EN 03 2011 INSTALLER OPERATIONS CHECKLIST UI CONCERNING UNIT INSTALLATION OPERATIONS AND SETUP FOR COMMISSIONING HAVE THE FOLLOWING CHECKS BEEN COMPLETED Components installed as described in the paragraph on Water circuit connections YES NO Two pressure gauges with a suitable scale are installed on the inlet and outlet Shut off valves are installed on the heating system circuit and domestic hot water circuit inlet and outlet Two thermometers are installed on the inlet and outlet All pipes insulated with suitable vapour barrier material to prevent formation of condensate and heat loss with control and shut off devices protruding from the insulation Drain valves are installed at the lowest points in the system Automatic or manual air vent valves are installed at the highest points in the system An additional expansion vessel is inst
25. Identify the terminals used for electrical connections on the layout drawing shown in this manual Make the connections as shown in the wiring diagram pro vided in this manual The figures show the power supply connection terminals C for 230V and 400V Replace the covers on the electrical panel and the closing panel Make sure that all the covers removed to make the electri cal connections have been replaced before powering up the unit Position the main switch QF1 outside the unit in the ON position Once the remote terminal has been switched on OFF and init are displayed The room unit is ready to use after a few seconds when init is shown and the clock is displayed Heat pump terminal block U U a e e Qs1 asi 4 See 2 1 1 1 U N U V WN 230V 1Ph 50Hz 400V 3N 50Hz Installer connections Power supply 230V 400V Number of power wires 2 4 Power wire size 6 mmq 6 mmq Earth connection via heat pump terminal block Phase and neutral connection via door lock disconnect Switch E Compliant with standards in force in the place where the unit is installe EN 03 2011 WWR MTD2
26. Tm2 Mn01 0138 Maximum outside temperature corresponding to outlet temperature Te2 Mn01 0139 Inside temperature to enable frost protection Mn01 0140 Outside air temperature for frost protection Mn01 0141 Activation of system pump operation at intervals 07 system pump always on 1 system pump operation at intervals SR 0143 System pump operating time in sniffing mode Mn01 0147 System pump off time between one sniffing cycle and the next Mn01 0148 Enable SYSTEM compensation curve 0 Disabled 1 Enabled Mn01 0152 Fixed return water temperature set point in HEATING Mn01 0153 Enable SYSTEM compensation curve 0 Disabled 1 Enabled Mn01 0154 Fixed return water temperature set point in COOLING Mn01 0155 Enable compensation for room humidity SYSTEM 0 Disabled 1 Enabled Mn01 0156 Room relative humidity value to start increasing SYSTEM return water set point Mn01 0157 Maximum return temperature hysteresis corresponding to 100 relative humidity Mn01 0158 SYSTEM compensation curve number Mn01 0159 Enable contact as 0 Alarm signal 17 Dehumidifier 32 Secondary circuit pump Mn01 015A Enable contact as 0 Reduced electricity rate 1 Stop operation due to excess power consumption Mn01 015D Enable compensation curve for zone LT3 07 Disabled 1 Enabled Mn01 015E Enable room temperature influence on SYSTEM 0 7 Disabled 1 Enabled Mn01 0163 SYSTEM Room Authority Mn01 0164 96 Minimum set point limit for SY
27. UOM Enable domestic hot water set point 0 Economy 1 Comfort Mn00 0015 Domestic hot water Economy set point 0022 Domestic hot water Comfort set point 0023 User password Mn00 0036 Enable remote contact 0 remote contact enabled 1 remote contact disabled selection from keypad only Mn01 0100 Automatic mode changeover set point in HEATING Mn01 0106 Automatic mode changeover differential in HEATING Mn01 0107 Automatic mode changeover set point in COOLING Mn01 0108 Ne Automatic mode changeover differential in COOLING Mn01 0109 Type of outlet heater operation 0 Supplementary 1 Replacement Mn01 010G Type of boiler operation 0 Supplementary 1 Replacement Mn01 010H Relationship between plant and ambient 0 Unit work on ambient request 1 Unit work indipendent Mn01 011D Password Installatore Mn01 011G Enable compensation curve for LT3 in HEATING 0 Disabled fixed set point operation 1 Enabled Mn01 011R Enable compensation curve for zone LT3 0 Disabled 1 Enabled Mn01 011T Fixed water outlet temperature set point for LT3 in HEATING Mn01 011U Maximum return set point limit in cooling mode Tm1 Mn01 0128 Outside minimum temperature corresponding to max return temperature Tei Mn01 0129 Zone LT3 compensation curve number Mn01 012A Enable room temperature influence on 0 7 Disabled 17 Enabled Mn01 012D LT3 Room Authority Mn01 012 MINIMUM outlet set point lim
28. ation The water content of the unit must be such as to avoid dis turbing operation of the refrigerant circuits WATER CONNECTIONS Risk of freezing If the unit is used with water temperatures below 4 5 C the risk of the unit freezing must be prevented by using the required percentage of antifreeze see Water circuit data Non freezing solutions must also be used at ambient tem peratures around O C The following are recommended use suitable percentages of antifreeze see Ethylene gly col solutions protect the piping with heating sheaths Ethylene glycol solutions Water and ethylene glycol solutions used as a heat carrier in the place of water reduce the performance of the unit Multiply the performance figures by the values given in the following table A The heat pumps must be fitted with a filling top up sys tem connected to the return line and a drain valve in the lowest part of the system Systems containing antifreeze or covered by specific legislation must be fitted with low loss headers UA empty the system making sure water remains at the lowest points in the circuit or there are closed valves where water may stagnate It is recommended to use non toxic food grade antifreeze compliant with the standards in force in the countries where the unit is used if domestic hot water production is also fea tured The antifreeze used must be corrosion inhibited and com patible with the water
29. chemically flush the plate heat exchanger after every 3 years of operation To perform this operation contact a specialist technician REFRIGERANT GAS CHARGE The chillers are filled with R410A refrigerant gas and tested in the factory In normal conditions there should be no need for the Tech nical Service to intervene to check the refrigerant gas However over time small leaks may develop at the joints leading to loss of refrigerant and draining of the circuit causing the unit to function poorly In this case the leaks of refrigerant must be identified and repaired and the refrigerant circuit recharged Proceed as follows Empty and dry the entire refrigerant circuit using a vacuum pump connected to the low and high pressure tap until the vacuometer reads about 10 Pa Wait a couple of minutes and check that this value does not rise to more than 50 Pa Connect the refrigerant gas cylinder or a filling cylinder to the low pressure line pressure gauge connection Charge the quantity of refrigerant indicated on the unit s rating plate Always check the superheating and subcooling values which should be between 5 and 10 and 4 and 8 After a couple of hours operation check that the liquid indicator indicates a dry circuit dry green DISPOSAL The unit must be disposed of according to the legislation in force in the country concerned Ain the event of partial leaks the circuit must be com pletely e
30. configuration Mnu01 DHW Mnu02 Installer Supplem sources Mnu03 034 Cascade Forced fan Mnu04 Primary and DHW exchanger Mnu06 input output Mnu09 Compressor Mnu05 Source heat exchanger Mnu07 Authorised technical service Defrost Mnu08 Alarm log Mnu11 Serial protocol Mnu12 Procedure for accessing the menu 5 10 90 Wed display Press the 5 buttons together for 3 sec onds Turn the knob and select the password as shown in the table gt WWR MTD2 BWR MTD2 EN 03 2011 OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER A Turn the knob to select the menu Turn the knob and select the parameter to B Press the knob to confirm be set mC Sab 1223 Li Lic 3 Press the knob The parameter value flashes Press the knob to confirm Turn the knob to change the parameter val ue Cort 221 8023 Press the button twice until reaching the Main display main display Press the button to exit programming mode EN 03 2011 WWR MTD2 BWR MTD2 CONTROL AND OPERATING CHARACTERISTICS Temperature control The heating or cooling circuit water temperature is calculat ed by the controller and depends on the following factors A system wate
31. exposing the units to direct sunlight as the pressure inside the refrigerant circuit may reach dangerous values and cause the activation of the safety valves where fitted The units cannot be stacked Packaging dimensions 0011ms 0025 0031ms 0041 5 0025t ts 0031t ts 0041t ts 006105 0071t ts 0091t ts 0101t ts 0121t ts L mm 750 750 750 750 750 750 750 750 750 750 750 750 P mm 920 920 920 920 920 920 920 920 920 920 920 920 H mm 1370 1370 1370 1370 1370 1370 1370 1370 1370 1370 1370 1370 Gross weight kg 208 210 215 225 210 215 225 240 250 255 260 280 REMOVING THE PACKAGING The packaging must be removed by the operator using suit able protective equipment gloves glasses etc Take special care not to damage the unit Observe the local standards in force as regards disposal of the packaging using specialist collection or recycling centres Do not dispose of packaging materials in the environ ment or leave them within reach of children as they may represent a hazard Envelope A located in the compressor compartment contains installation user maintenance manual user manual EC declaration of conformity list of the main components and sub assemblies fitted on the product remote room control unit A5 must be installed DHW storage water temperature probe BT8 outside air temperature probe BT11
32. for for valves not domestic hot water supplied by the heat production pump manufacturer WWR MTD2 BWR MTD2 EN 03 2011 INSTALLER CONNECTIONS Optional connection 2 System outlet electric heater An electric heater installed at the outlet can be activated as a supplementary heater for the system Solution 1 System with heat pump and electric heater with storage tank Position probe BT9 in the storage tank Solution 2 System with heat pump and outlet electric heater WITHOUT storage tank Position probe BT9 on the system outlet pipe Outlet electric heater control A REPLACEMENT The electric heater is activated auto matically only when the heat pump shuts down due to oper ation outside of allowed limits or a malfunction To enable heater activation in REPLACEMENT mode set parameter 0303 1 and 010G 1 Electric heater operation reflects the trend in water outlet temperature as shown on the graph in figure 3 In REPLACEMENT mode the electric heater activation delay time is ignored and the device is activated immediate ly if necessary B SUPPLEMENTARY the electric heater operates in sup plementary heating mode together with the compressor to satisfy the heating load Electric heater operation reflects the trend in water outlet temperature as shown on the graph in figure 3 UA 230V 400V A Se 23
33. outlet temperature in the mixed circuit For systems configured with mixed zones the SYSTEM curve and ZONE curve must be selected The system and zone curve work in cascading the mixed zone curve may therefore not request a higher value than the one supplied by the system curve Maximum room humidity compensation The water temperature set point calculated based on the compensation curve can be compensated according to the maximum relative humidity in the room The water temperature value can increase so as to avoid possible formation of condensate in the radiant cooling sys tems underfloor ceiling wall etc If the relative humidity measured by the A5 room unit A5 exceeds the value set for parameter 0157 0172 0187 the water temperature set point increases until reaching the maximum temperature The maximum water temperature is the set point calculated according to the compensation curve in cooling mode plus the value set for parameter 0158 0173 0188 Enabling room humidity compensation on SYSTEM deviates the calculated heat pump return water temperature set point Enabling room humidity compensation on ZONE LT1 LT2 LT3 deviates the calculated water outlet temperature set point to the system controlled by the mixing valve Outlet temperature hysteresis Value parameter 0158 parameter 0173 parameter 0188 100 UR Room humidity RH Value parameter 0157 Value parameter 0172 Value
34. parameter 0187 WWR MTD2 BWR MTD2 EN 03 2011 Description Men no Parameter Default UOM Enable SYSTEM compensation curve 07 Disabled 1 Enabled Mn01 0154 0 Maximum return temperature set point limit in cooling mode Tm1 Mn01 0128 25 C Minimum outside temperature corresponding to max return temperature Te1 Mn01 0129 23 C Minimum return temperature set point limit in cooling mode Tm2 Mn01 0130 23 C Maximum outside temperature correspond ing to min return temperature Te2 Enable compensation curve zone LT1 0 Disabled 1 Enabled Mn01 Mn01 0131 0169 36 0 C Maximum outlet temperature set point limit in cooling mode Tm1 Mn01 0132 20 C Minimum outside temperature correspond ing to max outlet temperature Te1 Mn01 0133 23 C Minimum outlet temperature set point limit in cooling mode Tm2 Mn01 0134 18 C Maximum outside temperature correspond ing to min outlet temperature Te2 Enable compensation curve zone LT2 0 Disabled 1 Enabled Mn01 Mn01 0135 0184 36 0 C Maximum outlet temperature set point limit in cooling mode Tm1 Mn01 0136 20 C Minimum outside temperature corresponding to max outlet temperature Te1 Mn01 0137 23 C Minimum outlet temperature set point limit in cooli
35. point limit for SYSTEM curve Mn01 0166 48 SYSTEM compensation curves in cooling mode Enable SYSTEM compensation curve 0 Disabled Mn01 0154 0 12 Enabled Maximum return temperature set point limit in cooling mode Tm1 Mn01 0128 25 Minimum outside temperature corresponding to max return temperature Te1 dad dos m k Minimum return temperature set point limit in cooling mode Tm2 Mn01 0130 23 Maximum outside temperature corresponding to min return temperature Te2 SES p EN 03 2011 WWR MTD2 BWR MTD2 TEM CONFIGURATION System number 0 Water circuit diagram 06 0 00 0000 NOLLVYNDIANOD A18Wassv 7g N 5 1VWHSIOSO 3HI OLWOR OUWWOLNY EH al I H 1 gt e 1 es ba l gt egere un Sand Km e 1 SSOTMO IESEL n tI e ec o D4 e EH sov B Il MN CS ARO he ns ne te a a
36. table DOMESTIC HOT WATER emergency operation If the heat pump is not working correctly or the compressor has shut down emergency operation can be activated Emergency operation involves heating the domestic hot water using the electric heater inside the storage tank To enable manual operation of DHW storage heaters set parameter 0202 1 SHUTTING DOWN FOR LONG PERIODS After deactivating the heat pump Disconnect the unit from the power supply Make sure the remote keypad is in the OFF position Place QF1 in the OFF position see wiring diagram Deactivate the indoor terminal units by placing the switch of each unit in the OFF position Close the water valves Att the outside temperature may fall below zero there is the risk of freezing The water circuit MUST BE EMPTIED AND CLOSED if draining after operation in heat pump mode beware that Description Menu Parameter Valoreda UOM no impostare Electric heater operating mode Mn02 0202 1 0 heat pump only 1 7 electric heater only 2 heat pump electric heater the water may be hot or antifreeze must be added in the proportion recommended by the manufacturer It is recommended to use non toxic food grade antifreeze compliant with the standards in force in the countries where the unit is used if domestic hot water production is also featured If the mains switch is turned to off for more than four hours after turnin
37. yes Mn02 0215 Example 1 Legionella prevention cycle day THURSDAY 0 1 yes Mn02 0216 0 Legionella prevention cycle day FRIDAY 0 1 yes Mn02 0218 0 Legionella prevention cycle day SATURDAY 0 1 Mn02 0219 Legionella prevention cycle day SUNDAY 0 1 yes Mn02 0220 Legionella prevention cycle time Mn02 0221 02 Enable Legionella prevention function 0 Not enabled 1 Enabled Mn02 0222 Maximum Legionella prevention function duration Mn02 0225 20 min EN 03 2011 WWR MTD2 BWR MTD2 INSTALLER CONNECTIONS HL1 Configurable contact This contact can be configured for the following functions Alarm signal Secondary circuit pump Dehumidifier Alarm signal A visual or audible signal device can be activated if the unit shuts down due to a malfunction Configure the contact selecting the desired function by set ting parameter 015A Description Menu Parameter Value to be UOM no set Enable the contact as Mn01 015A 0 0 Alarm signal 1 Dehumidifier 3 Secondary circuit pump Secondary circuit pump If the system features a low loss header contact HL1 can be used to activate the circulating pump on the secondary circuit Configure the contact selecting the desired function by set ting parameter 015A Description Menu
38. 0V 400V Ru Outlet electric heater operating parameters in REPLACE MENT mode Description Menu Parameter Value to be UOM no set Activation electrical heater Mn03 0300 1 0 Electrical Heater not enabled 1 Electrical Heater enabled Type of outlet electric heater oper Mn01 0106 1 ation 0 Supplementary 1 Replacement Enable boiler Mn03 0301 0 0 Boiler not enabled 1 Boiler enabled Integration time to activate outlet elec Mn06 0617 600 C sec tric heaters Set the parameters following the sequence described in the table Outlet electric heater operating parameters in SUPPLE MENTARY mode Description Menu Parameter Value to be UOM no set Activation electrical heater Mn03 0300 1 0 Electrical Heater not enabled 1 Electrical Heater enabled Type of outlet electric heater oper Mn01 0106 0 ation 0 Supplementary 1 Replacement Enable boiler Mn03 0301 0 0 Boiler not enabled 1 Boiler enabled Electric heater delay time allows the Mn06 0616 60 min heat pump to reach steady operation and thus avoid activating the heater when not needed Integration time to activate outlet elec 0 0617 600 tric heaters Set the parameters following the sequence described in the table EN 03 2011 WWR MTD2 BWR MTD2 8 INSTALLER CONNECTIONS Electric heater a
39. 120 100 80 60 40 2 20 Curve 1 0 1 0 2 3 4 Water flow rate m h Available pressure head kPa AVAILABLE PRESSURE HEAD CURVES SOURCE CIRCUIT BWR MTD2 XE 0031 120 100 80 60 40 Available pressure head kPa 20 Curve 2 Curve 1 0 0 1 2 3 Water flow rate m h AVAILABLE PRESSURE HEAD CURVES SOURCE CIRCUIT BWR MTD2 XE 0041 0061 0071 0091 0101 0121 400 350 300 250 200 150 100 Available pressure head kPa 50 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Water flow rate m h The pressure head refers to the values at the fittings EN 03 2011 WWR MTD2 BWR MTD2 EE CHECKING AND STARTING UP THE UNIT CHECKS BEFORE STARTING THE UNIT the vibration damping feet are fitted inlet filters are fitted on the system suitably sized expansion vessel and safety valve installed on the DHW circuit an expansion vessel is installed if the expansion vessel on the unit is undersized make sure vibration damper joints are installed on water connections a low loss header is installed if the water content is insuffi cient make sure the position of the outside air probe corre sponds to the instructions shown in the manual make sure the position of the room control unit corre sponds to the instructions shown in the manual make sure that the electrical power available is adequate for the unit installed make sure the non r
40. 2 XE 0011 Available pressure head kPa Water flow rate m h AVAILABLE PRESSURE HEAD CURVES SYSTEM CIRCUIT BWR MTD2 XE 0025 90 80 70 60 50 40 30 20 Available pressure head kPa 10 0 Water flow rate m h AVAILABLE PRESSURE HEAD CURVES SYSTEM CIRCUIT BWR MTD2 XE 0031 120 100 80 60 40 20 Available pressure head kPa Water flow rate m h AVAILABLE PRESSURE HEAD CURVES SYSTEM CIRCUIT BWR MTD2 XE 0041 Available pressure head kPa Water flow rate m h The pressure head refers to the values at the fittings EN 03 2011 WWR MTD2 BWR MTD2 8 PUMP CURVE AVAILABLE PRESSURE HEAD CURVES SYSTEM CIRCUIT BWR MTD2 XE 0061 120 4 100 80 40 20 Available pressure head kPa Curve 0 0 1 2 3 4 5 Water flow rate m h AVAILABLE PRESSURE HEAD CURVES SYSTEM CIRCUIT BWR MTD2 XE 0071 0091 0101 0121 250 Available pressure head kPa Water flow rate m h The pressure head refers to the values at the fittings WWR MTD2 BWR MTD2 EN 03 2011 PUMP CURVE AVAILABLE PRESSURE HEAD CURVES SOURCE CIRCUIT BWR MTD2 XE 0011 90 80 Curve 3 70 Curve 2 60 50 40 Curve 1 30 20 10 0 0 1 Water flow rate m h Available pressure head kPa AVAILABLE PRESSURE HEAD CURVES SOURCE CIRCUIT BWR MTD2 XE 0025
41. 600 600 600 600 600 600 600 600 System expansion vessel 2 2 2 2 2 2 2 5 5 5 8 8 Power supply Vlph Hz 230 1 50 400 3 50 Sound power dB A 5 52 53 53 58 53 53 58 59 66 66 70 70 Sound pressure dB A 6 37 38 38 43 38 38 43 44 51 51 55 55 Dimensions Depth mm 845 845 845 845 845 845 845 845 845 845 845 845 Width mm 680 680 680 680 680 680 680 680 680 680 680 680 Height mm 1105 1105 1105 1105 1105 1105 1105 1105 1105 1105 1105 1105 Water connections inlet outlet inch 1 1 1 1 1 1 1 1 1 4 1 1 4 1 1 4 1 1 4 1 1 4 DHW connections inlet outlet inch 1 1 1 1 1 1 1 1 1 4 1 1 4 1 1 4 1 1 4 1 1 4 Operating weight kg 188 190 195 210 190 195 210 225 230 245 250 270 1 System water temperature 30 35 C source water temperature 10 5 2 System water temperature 40 45 C source water temperature 10 5 C 3 System water temperature 23 18 C source water temperature 30 35 C 4 System water temperature 12 7 C source water temperature 30 35 5 Sound power based on measurements performed in accordance with ISO 3744 6 Average sound pressure on reflecting surface Q 2 at a distance of 1 metre from the outside surface of the unit EN 03 2011 WWR MTD2 BWR MTD2 OPERATING LIMITS UIA HEATING WWR MTD2 60 55 cc 50 45 40 35 System outlet temperature C
42. 9 gN 2 o 0 t AndWassv IWWHIOSS SHI OL WOS ha 2 E mg Quvwoinv i 11 e 9956 i aa D 4 5559 hte E Gees H S d 5 TII ez ect ILC pod g Y 1 en gt gt ONINV3TO 413S N f I ol mm a a inar o KH o E SNVW 1 o o 5 ud as rit o c Vota D 5 8 e Jj n 22 Tnm o A ff 53 rit DEST A E CH 5 D I sro A AY E 5 ots 11 dk 11 zt dk 550 ty n o 2 EE E E EE EE 505 sot ne PAY 09 557 ES 585 30 Sos o NU3TIn8 VOINHO3IL JHL NI 999739534 30 vA 593151 148109 H31VM WALSAS TE NYNLIY IHL NO 39VHOJS V TIVISNI o 2 SNOILOANNOO WOWONI o 5 AVM LOH 2 lt a Ie Seen al or T 4 ke e BS 1 SV T 39uvHosia ty o 2 1 HO 00118 SELa TAGOW H
43. INSTALLATION OPERATING SERVICE MANUAL Medium temperature reverse cycle water water heat pump for heating water to 55 and domestic hot water production WWR MTD2 BWR MTD2 0011 0121 LRDES U General warnings 3 Checking and starting up the unit 36 Waiver of liability 3 Description of room controller buttons and 38 display Fundamental safety rules 3 A Operation and functions of the room controller 39 Receiving and handling the product 4 Control and operating characteristics 48 Unit identification 5 A System configuration 53 Description of standard unit 6 Maintenance and service 59 Installation 6 Peak limiter alarm signals 61 Dimensioned drawings 7 A Shutting down for long periods 62 Water connections 8 A Scheduled maintenance 62 Electrical connections 12 Unscheduled maintenance 62 A Installer connections 14 A Disposal 63 Mains power supply connections 15 Useful information 63 Installer connections 16 Listof parameters 64 General technical data 28 Installer operations CHECKLIST 66 Operating limits 30 Pump curve 31 The following symbols are used in this publ
44. STEM curve Mn01 0165 Maximum set point limit for SYSTEM curve Mn01 0166 Enable compensation curve for zone LT1 0 Disabled 1 Enabled Mn01 0167 Enable compensation curve for LT1 in HEATING 0 Disabled fixed set point operation 12 Enabled Mn01 0168 Enable compensation curve for zone LT1 07 Disabled 1 Enabled Mn01 0169 Fixed water outlet temperature set point for LT1 in HEATING Mn01 0170 WWR MTD2 BWR MTD2 EN 03 2011 LIST OF PARAMETERS UI Description Menu Parameter no UOM Enable compensation for room humidity ZONE LT1 07 Disabled 1 Enabled Mn01 0171 Room relative humidity value to start increasing water outlet temperature set point ZONE LT1 Mn01 0172 K Maximum outlet temperature hysteresis corresponding to 100 relative humidity Mn01 0173 Zone LT1 compensation curve number Mn01 0174 Enable room temperature influence on LT1 07 Disabled 1 Enabled Mn01 0178 LT1 Room Authority Mn01 0179 MINIMUM outlet set point limit for compensation curve in zone LT1 Mn01 0180 MAXIMUM outlet set point limit for compensation curve in zone LT1 Mn01 0181 Enable compensation curve for zone LT2 0 Disabled 1 Enabled Mn01 0182 Enable compensation curve for LT2 in HEATING 0 7 Disabled fixed set point operation 12 Enabled Mn01 0183
45. System pump active flashing compressor timer delay 8 Actuator operating fixed compressor active Defrost active Boiler or electric heater active Frost protection active 9 Secondary field 8888 Time menu parameter number display 10 Active time band On indicates active time band WWR MTD2 BWR MTD2 EN 03 2011 OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER Meaning of the symbols Symbol Meaning Press and release Hold for 3 seconds Turn the knob Display During normal operation of the unit the display shows the following information operating mode selected domestic hot water production enabled room temperature hour and minutes day E L z pum 030 Wed Additional information displayed During operation of the unit pressing the knob displays the information described below E 3 IY ni JCILI C LIL 1030 10 909 Wed Wed Press the knob Room temperature set point Press the knob ene JALNA 10 90 Wed Humidity set point Press the knob Outside air temperature Domestic hot water set point Press the knob Press the knob Room humidity Press the knob EN 03 2011 WWR MTD2 BWR MTD2 OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER
46. UMANA ALIJAS 5 Q3TIIHO Q31V3H 3901 5 m M aech iva oona HESS S E E 008 IMH 006 IMH INVI 5 G AAA P9 D S a S SATWA 30103138 P Somme iworwaanvanouvean 2 c CN a gt HALTS EE 15 1 8 HOLIMS 3 5 g 5 5 e e EE E 99 YILINWOWYSHL p S LINN amwAxosuo N aonvosunssaua E E g P n zl SAONVI IlddV S IOHNAS AHL OL 350093 ct ano EI o ki o2o09 S rasa WWR MTD2 BWR MTD2 EN 03 2011 Water circuit diagram not a working drawing SYSTEM CONFIGURATION UI Parameter configuration Description Menu ES Default UOM SYSTEM compensation curves in heating mode Enable SYSTEM compensation curve 0 Disabled Mn01 0152 0 1 Enabled SYSTEM compensation curve number Mn01 0159 1 Enable room temperature influence on SYSTEM 0 7 Disabled Mn01 0163 0 1 Enabled SYSTEM Room Authority Mn01 0164 30 96 MINIMUM return set point limit for SYSTEM curve Mn01 0165 30 MAXIMUM return set
47. Water content in the system Size 0011ms 0025 0031 0041 5 0025t ts 0031t ts 0041t ts 0061t ts 0071t ts 0091045 0101t ts 0121t ts Minimum system water content 1 27 37 44 56 37 44 56 80 100 115 130 170 Expansion vessel size Size 0011ms 0025 0031ms 0041ms 0025 5 0031t ts 100415 0061t ts 0071t ts 100915 0101t ts 0121t ts System expansion vessel volume 1 2 2 2 2 2 2 2 5 5 5 8 8 Safety valve calibration Size 0014 5 0025 0031 0041 0025 5 0031t ts 0041t ts 0061t ts 0071t ts 1009115 0101t ts 0121t ts System safety valve KPa 600 600 600 600 600 600 600 600 600 600 600 600 Utility water circuit connection diagram WWR BWR Factory connections Installer connections 9 1 12 E O 11 16 2 4 B X Y UTILITY RETURN 13 14 1 6 8 5 12 5 2 ER UTILITY OUTLET n t i N _ Y 1 Pressure gauge 5 Flow switch 9 Expansion vessel 13 Differential pressure switch 2 Vibration damper joint 6 Thermometer 10 Wire mesh filter 14 Drain chemical washing valve 3 Shutoff valve 7 Pump 11 Fill top up 15 Unit drain
48. agram not a working drawing WWR MTD2 BWR MTD2 EN 03 2011 2 5 2 HI gt System number 0 Wiring diagram MLOZ ZO SWLO AdM 170000 NOLLVYNSISINOD 1v3H Sv aariddns WoOH 00218 HO 00119 SELa 7IQOW H31VM G3TTIHO Q31V3H 804 SOVYOLS HSN 91 10579 008 00 OMH TION INV L SOVHOLS NOLLONGOYd 3ATVA 80103138 HILL 1v3H 5 Sv JYNLVYIAWIL IAISLNO univ dal Wnidaw S3ONVI adv NI X018 IVNINYAL M3TIOHINOO WOON EI 1 81 N 3AWA 301937198 32018 TVNIWH3 L 21519919 ax 1 ZUR 30018 IVNINH3L Oni19313 KA pos 9018 adisino
49. alled on the system if the standard vessel is insufficient Vibration damper joints are installed on the inlet and outlet water pipes Alow loss header is installed if the water content is insufficient Vibration damper supports are installed on the unit The domestic hot water production system is installed The safety valve is installed and suitably sized D D D DL DL D D D D D D DL D oO DO The domestic hot water expansion vessel is installed and suitably sized Checks as described in the paragraph on Checking and starting up the unit CHECKED Two pressure gauges with a suitable scale are installed on the inlet and outlet The unit is positioned as described in the chapter on Positioning in this manual The filter is installed on the system return inlet as close as possible to the unit and in a position that is easy to access for maintenance REQUIRED component this must be installed before water circulates through the heat exchanger otherwise the warranty will be void The filter is installed on the domestic hot water return inlet as close as possible to the unit and in a position that is easy to access for maintenance REQUIRED component this must be installed before water circulates through the heat exchanger otherwise the warranty will be void Water to water units only The filter is installed on the source return inlet as close as possible to the unit and in a positio
50. ber of compressors n 1 1 1 1 1 1 1 1 1 1 1 1 Refrigerant R410A Refrigerant charge kg 1 1 1 15 1 24 155 1 15 1 24 1 55 1 7 265 3 1 3 5 3 7 Oil charge kg 1 1 1 25 1 25 1 24 1 25 1 25 1 24 1 89 2 51 325 325 325 Type of system pump Circulating Centrifugal Type of source pump Circulating Centrifugal System and DHW safety valve kPa 600 600 600 600 600 600 600 600 600 600 600 600 System expansion vessel 2 2 2 2 2 2 2 5 5 5 8 8 Power supply Viph Hz 230 1 50 400 3 50 Sound power dB A 5 52 53 53 58 53 53 58 59 66 66 70 70 Sound pressure dB A 6 37 38 38 43 38 38 43 44 51 51 55 55 Dimensions Depth mm 845 845 845 845 845 845 845 845 845 845 845 845 Width mm 680 680 680 680 680 680 680 680 680 680 680 680 Height mm 1105 1105 1105 1105 1105 1105 1105 1105 1105 1105 1105 1105 Water connections inlet outlet inch 1 1 1 1 1 1 1 1 1 4 1 1 4 1 1 4 1 1 4 1 1 4 DHW connections inlet outlet inch 1 1 1 1 1 1 1 1 1 4 1 1 4 1 1 4 1 1 4 1 1 4 Operating weight kg 188 190 195 210 190 195 210 225 230 245 250 270 1 System water temperature 30 35 C source water temperature 10 5 2 System water temperature 40 45 C source water temperature 10 5 3 System water temperature 23 18 C source water temperature 30 35 C 4 System water temperature 12 7 source water temperature 30 35 5 So
51. cal data at maximum conditions allowed full load WWR MTD2 Power supply Total power consumption Icc A 1 Fuses 5x20T 250V Mosel V Ph Hz E CETT LRA FU1 FU3 FUS FU6 WWR 0011ms MTD2 230 50 2 93 13 8 26 4A 4A 4A 1 25 WWR 0025ms MTD2 230 50 3 94 17 4 37 4A 4A 4A 1 25 WWR 0031ms MTD2 230 50 5 06 23 8 44 4A 4A 4A 1 25 WWR 0041ms MTD2 230 50 6 06 31 3 45 4A 1 25A WWR 0025t 0025ts MTD2 400 3N 50 3 69 8 35 16 4A 4A 4A 1 25 WWR 00311 0031ts MTD2 400 3N 50 4 73 9 6 48 22 4A 4A 4A 1 25 WWR 0044t 0041ts MTD2 400 3N 50 6 35 12 64 29 4A 1 25 WWR 0061t 0061ts MTD2 400 3N 50 7 74 14 3 75 34 4A 1 25 WWR 007 1t 0071ts MTD2 400 3N 50 9 76 20 95 43 DA 1 25A WWR 0091t 0091ts MTD2 400 3N 50 10 94 25 111 50 1 25 WWR 0101t 0101ts MTD2 400 3N 50 12 79 27 1 118 53 DA 1 25 WWR 0121t 0121ts MTD2 400 3N 50 15 79 32 1 140 63 1 25 F L I Maximum power input F L A Maximum current input L R A Start up current Maximum values for sizing the protection switches and power supply cables ms ts Unit with single phase three phase peak limiter Fuse 6 3x32T 250V WWR MTD2 BWR MTD2 EN 03 2011 ELECTRICAL CONNECTIONS UA Electrical data at maximum conditions allowed full load BWR MTD2
52. circuit components Freezing point 0 5 10 15 20 25 Percentage of ethylene glycol by weight 0 1296 2096 2896 3596 40 cPf 1 0 985 0 98 0 974 0 97 0 965 cQ 1 1 02 1 04 1 075 1 11 1 14 cdp 1 1 07 1 11 1 18 1 22 1 24 cPf cooling capacity correction factor cQ flow rate correction factor pressure drop correction factor Water quality The water used in the system and domestic hot water cir cuits must comply with the following characteristics Fouling factors The performance data given refer to conditions with clean evaporator plates fouling factor 1 For different fouling factors multiply the figures in the perfor mance tables by the coefficient given in the following table PH 6 8 Electrical conductivity less than 200 mV cm 25 Chlorine ions less than 50 ppm Sulphuric acid ions less than 50 ppm Total iron less than 0 3 ppm Alkalinity M less than 50 ppm Total hardness less than 50 ppm Sulphur ions none Ammonia ions none Silicon ions less than 30 ppm Fouling factors Evaporator m C W f1 fk1 fx1 4 4 x 10 0 86 10 0 96 0 99 0 99 1 72 10 0 93 0 98 0 98 capacity correction factor fk1 compressor power input correction factor fx1 total power input correction factor EN 03 2011 WWR MTD2 BWR MTD2 EJI WATER CONNECTIONS
53. ctivation delay time 0616 Integration time 0617 System water control set point Actual water temperature System HP control hysteresis Heater ON Compressor OFF Once the heater is enabled supplementary heating is activated when the integration time set for parameter 0617 is reached and the delay time 0616 has elapsed The delay time is ignored when the unit is first started Example Value 0617 600 C sec Outlet temperature set point 50 Actual temperature 40 50 40 x 60 sec 600 Csec gt Electric heater ON Low values of 0617 mean frequent activation of the heater Too high values of 0617 mean long delays in activating the heater EZ WWR MTD2 BWR MTD2 EN 03 2011 INSTALLER CONNECTIONS KM2 Boiler A boiler can be used as a supplementary or replacement heat source for the system Solution 1 System with heat pump and boiler with storage tank Solution 2 System with heat pump and boiler without storage tank Boiler control A REPLACEMENT The boiler is activated automatically only when the heat pump shuts down due to operation out side of allowed limits or a malfunction To enable boiler activation in REPLACEMENT mode set parameter 030671 and 010H 1 Boiler operation reflects the trend in water temperature as shown on the graph in figure 3 In REPLACEMENT mode the activation delay time is ignored and the boiler is activated immediately if neces
54. e body Never perform any cleaning operations before having disconnected the unit from the mains power supply Do not modify safety or control devices without authori sation and instructions from the manufacturer Do not pull detach or twist the electrical cables coming from the unit even when disconnected from the mains electricity supply Do not open doors or panels providing access to the internal parts of the unit without first ensuring that the switch QF1 is in the OFF position see the wiring dia gram Do not introduce pointed objects through the air intake and outlet grills Do not dispose of abandon or leave within reach of children packaging materials cardboard staples plastic bags etc as they may represent a hazard Respect safety distances between the unit and other equipment or structures Guarantee adequate space for access to the unit for maintenance and or service opera tions Power supply the cross section of the electrical cables must be adequate for the power of the unit and the pow er supply voltage must correspond with the value indicat ed on the respective units All units must be earthed in conformity with legislation in force in the country con cerned Terminals 6 7 9 10 11 12 13 21 22 23 24 may be live even after the unit is disconnected Make sure power is not connected before proceeding Water connections should be carried out as indicated in the instructions to guarantee correct
55. e domestic hot water set point Press the knob to confirm WWR MTD2 BWR MTD2 EN 03 2011 OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER e Press the button twice until reaching the main display Main display EN 03 2011 WWR MTD2 BWR MTD2 F OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER Programming the time bands The room controller can customise on off times for each zone in the system based on six time bands The six time bands are identified by the following symbols selected by turning the knob pw p E E m dil f Phe A Ja hk A Time band 1 Time band 2 Time band 3 Time band 4 Time band 5 Time band 6 The time bands on systems with multiple zones each of which is managed by its own room controller maximum 6 must be programmed on each room controller For installations with heap pump connected directly to the system without storage tanks and secondary pumps parameter 011D must be set to 0 This means that heat pump operation will be managed based on the time bands Press the C button for 5 seconds Turn the knob Press to confirm The time bands can be programmed by selecting the days in preset groups or for each individual day H H GEL CLO set Ke set JL ILL 0845
56. ed on the fixed return set 1 Fixed set point in heating DISABLED point defined by parameters 0153 Heating and 0155 cool Fixed retum water temperature Mn01 0153 40 ing set point in HEATING Enable return set point in Mn01 0154 0 COOLING 07 Fixed set point in cooling ENABLED 17 Fixed set point in cooling DISABLED Fixed return water temperature Mn01 0155 12 S set point in COOLING FROST PROTECTION Frost protection based on system water temperature The frost protection function is active even if the controller is in standby To prevent the water freezing and damaging the plate heat exchanger the microprocessor shuts down the compressor and activates the system heat exchanger heater if the temperature measured by the heat exchanger outlet temperature probe is than 4 C The frost prevention temperature set point can only be modified by an authorised service centre and only after verifying that the water circuit contains antifreeze Tripping of this alarm shuts down the compressor but not the pump which remains active To reset normal operation the water outlet temperature must rise to more than 7 on the system side Reset is automatic Frost protection based on inside temperature Heat pump TC Frost protection on the heating circuit is always active even when the heat pump is off QN The heat pump and or supplementary sources of heat out let heater or boiler are activated if the room temperature falls below the value se
57. entification plates or anything else need ed to clearly identify the product are tampered with removed or missing NOMENCLATURE WWR MTD2 BWR MTD2 ooi m 2 S peak limiter Power supply voltage m 230V 50Hz 1ph t 400V 3N 50Hz size Model EN 03 2011 WWR MTD2 BWR MTD2 EJI DESCRIPTION OF THE UNIT The reverse cycle water water units for groundwater and The units are CE marked as established by the EU direc brine water units for geothermal loops operate with R410A tives including the latest amendments and the correspond refrigerant fluid and are suitable for indoor installation ing approximated national legislation They are factory tested and on site installation is limited to water and electrical connections 1 e E 12 1 Electrical panel 2 4 wayreversing valve 13 _ 11 3 Scroll compressor 4 Low pressure switch 4 5 High pressure switch 6 es S 6 Heat exchanger source z 14 7 Heat exchanger system 7 8 Liquid indicator 9 Thermostatic valve 3 10 Filter 2 11 Expansion vessel 12 System pump 9 13 Source pump BWR version D modulating valve WWR version 5 14 High low pressure transducer 10 Z 2 8 VERSIONS AVAILABLE WWR MTD2 5 i e TN Reverse cycle water water heat pump with domestic hot water production sam w Built in water pump as
58. er 1106 7 alarm activation year EN 03 2011 WWR MTD2 BWR MTD2 BJ MAINTENANCE AND SERVICE ALARM TABLE Alarm code Cause Solution A001 BT1 System heat exchanger water inlet temperature probe Probe faulty or disconnected A002 BT2 System heat exchanger water outlet temperature probe Probe faulty or disconnected A003 BT8 DHW storage temperature probe Probe faulty or disconnected A004 BT7 Transfer heat exchanger water outlet temperature probe Probe faulty or disconnected A005 BT9 Storage tank temperature probe Probe faulty or disconnected A006 BT11 Outside air temperature probe Probe faulty or disconnected A007 BP1 High pressure transducer Transducer faulty or disconnected Check connection nete High pressure switch Check refrigerant circuit pressure A014 High pressure measured by transducer BP1 A019 Difference between low and high pressure in refrigerant circuit too low refrigerant Circuit pressure Check refrigerant charge A022 Operation outside of limits Make sure outside air temperature and water tempera ture set point are inside the specified operating limits Make sure the filter is clean A023 Source differential pressure switch flow switch activated Make sure the system is filled with water Check water flow rate Verifica pulizia filtri A025 Differential press
59. es make sure that these do not contain stones sand rust scale or any foreign objects that may damage the system wash the system with clean water Water connection dimensions Electrical connection input System water inlet E oo 59 K 2G 58 99 System water outlet Water connections dimensions 0011ms 0025ms 0031 0041 0025t ts 0031t ts 0041tts 0061t ts 0071tts 0091t ts 0101t ts 0121t ts Water connections IN OUT 1 1 1 1 1 1 1 1 1 4 1 1 4 1 1 4 1 1 4 1 1 4 Domestic hot water connections IN OUT 1 1 1 1 1 1 1 4 1 1 4 1 1 4 1 1 4 1 1 4 Components Required components 1 Two outlet flow switches on both circuits in system and Source sections Both flow switches must be calibrated by the installer to 70 of rated flow compulsory 2 An inlet filter compulsory as close as possible to the unit and positioned to allow easy access for scheduled maintenance both on the system circuit and domestic Source circuit The following recommended components should be installed for correct installation of the unit Two pressure gauges with a suitable scale inlet and outlet Two vibration damper joints inlet and outlet Shut off valves at the inlet and outlet Two thermometers inlet and outlet All the pipes must be insulated with suitable material to preven
60. eturn valve is installed on the DHW circuit PREPARING FOR FIRST START UP The unit must be started up for the first time by the Techni cal Service Before starting up the unit make sure that the unit has been properly installed as described in this manual All safety conditions have been respected The unit is adequately fixed to the surface it rests on Clearances have been respected Water connections have been carried out as indicated in the instruction manual All water connections are tight Make sure the water circuit has been washed and drained The water circuit is filled and vented Make sure there is no air in the system If necessary vent the system using the vent valve If venting after operation in heat pump mode be careful as the water may be hot The water valves are open Electrical connections have been carried out correctly Voltage is within a tolerance of 1096 of the rated voltage for the unit Make sure that unbalance between phases is less than 3 for three phase units The unit is correctly earthed All electrical connections are tight make sure that the outside air and water temperature are within the unit operating limits shown in this manual Before starting up power up the unit for at least two hours by switching QF1 and QS1 to ON see the wiring diagram to allow the oil in the compressor sump to heat up STARTING UP FOR THE FIRST TIME Before star
61. f installing multiple units the clearances must be doubled WWR MTD2 BWR MTD2 EN 03 2011 DIMENSIONED DRAWINGS DISTANCE BETWEEN SUPPORT FEET 70 100 100 100 310 90 500 90 Source water inlet Source water outlet System water inlet System water outlet Safety valve discharge H 700 Electrical connection input ooo 1139 0011 0121 1105 600 CLEARANCE 600 600 Weight distribution 0011ms 0025ms 0031 5 0041ms 0025t ts 0031tts 0041t ts 0061t ts 0071t ts 0091t ts 010105 0121t ts WA rear R kg 37 38 39 42 38 39 42 44 46 47 48 52 W2 rear L kg 44 45 47 58 45 47 53 57 60 61 62 68 W3 front L kg 50 50 51 54 50 51 54 57 60 61 63 67 WA front R kg 57 57 58 61 57 58 61 67 74 76 77 83 total in operation kg 188 190 195 10 190 195 210 225 240 245 250 270 total for transport kg 208 210 215 225 210 215 225 240 250 255 260 280 EN 03 2011 WWR MTD2 BWR MTD2 WATER CONNECTIONS Warnings The choice and installation of components is the responsi bility of the installer who should follow good working prac tice and current legislation Before connecting the pip
62. g it on and before reactivating the unit leave the power on but the unit deactivated for at least two hours to preheat the oil in the compressor sump SCHEDULED MAINTENANCE Never perform any cleaning operations before having disconnected the unit from the mains power supply Make sure power is not connected before proceeding Control maintenance is fundamental to maintain the efficien cy of the unit both in terms of operation and energy con sumption The Technical Service maintenance plan must be observed with an annual service which includes the following opera tions and checks Filling of the water circuit Presence of air bubbles in the water circuit Efficiency of safety devices Power supply voltage Electrical power input Tightness of electrical and water connections IKE WWR MTD2 BWR MTD2 EN 03 2011 Condition of the compressor contactor Efficiency of the plate heat exchanger resistor Verification of operating pressure superheating and sub cooling Efficiency of the compressor heater Cleaning of water filters For BWR check freezing point of the glycol solution on the Source side For units installed near the sea the intervals between main tenance should be halved UNSCHEDULED MAINTENANCE Never perform any cleaning operations before having disconnected the unit from the mains power supply Make sure power is not connected before proceeding CHEMICAL WASHING It is recommended to
63. ication and inside the unit U User Important Danger high temperatures l Installer 2 Prohibition A Assistance Danger voltage Eurovent certification program EUROVENT 23 CERTIFIED PERFORMANCE fs Aide a a ae www eurovent certification com The manufacturer reserves the right to modify the data in this manual without warning WWR MTD2 BWR MTD2 EN 03 2011 GENERAL WARNINGS UI appliances have been designed to chill and or heat water and must be used in applications compatible with their performance characteristics these appliances are designed for residential or similar applications Incorrect installation regulation and maintenance or improper use absolve the manufacturer from all liability whether contractual or otherwise for damage to people animals or things Only those applications specifically indicated in this list are permitted Read this manual carefully All work must be carried out by qualified personnel in conformity with legislation in force in the country concerned The warranty is void if the above instructions are not respected and if the unit is started up for the first time without the presence of personnel authorised by the Company where specified in the supply contract who should draw up a start up report The documents supplied with the unit must be con signed to the owner who
64. it for compensation curve zone LT3 Mn01 012F MAXIMUM outlet set point limit for compensation curve in zone LT3 Mn01 012G Maximum outlet temperature set point limit cooling mode Tm1 Mn01 012H Minimum outside temperature corresponding to max outlet temperature Te1 Mn01 012J Minimum outlet set point limit in cooling mode 2 Mn01 012L Minimum outside temperature corresponding to min outlet temperature Te2 Mn01 012M Enable compensation for room humidity ZONE 0 Disabled 1 Enabled Mn01 012N Room relative humidity value to start increasing water outlet temperature set point ZONE LT3 Mn01 012P 96 Maximum outlet temperature hysteresis corresponding to 100 relative humidity Mn01 012R Minimum return set point limit in cooling mode 2 Mn01 0130 Maximum outside temperature corresponding to return temperature Te2 Mn01 0131 Maximum outlet temperature set point limit cooling mode Tm1 Mn01 0132 Minimum outside temperature corresponding to max outlet temperature Te1 Mn01 0133 Minimum outlet temperature set point limit in cooling mode Tm2 Mn01 0134 Maximum outside temperature corresponding to outlet temperature Te2 Mn01 0135 Maximum outlet temperature set point limit cooling mode Tm1 Mn01 0136 Minimum outside temperature corresponding to max outlet temperature Te1 Mn01 0137 Minimum outlet temperature set point limit in cooling mode
65. ke sure that the electrical wires are inside to ensure correct fastening click on Dimensions of A5 room controller figure 8 YV5 Accessory 3 way valve for domestic hot water pro duction The 3 way valve installed outside of the unit deviates the flow of hot water produced by the unit to the DHW storage tank During domestic hot water production the cooling heating demand is not satisfied Wire the three way valve supplied as an accessory by Man ufacturer following the instructions shown in the figure The valve is also fitted with a limit switch The limit switch contact is either closed or open based on the position of the valve Limit switch red and green wires Auxiliary contact closed Valve open Auxiliary contact open Valve closed If not supplied by Manufacturer the 3 way valve for domes tic hot water production should have the following character istics Voltage 230V AC 50 60 Hz Opening closing time 10s Delta P 500 kPa Fluid temperature 0 to 90 C Use three way valves with pressure drop below 20 kPa For further details see the chapter Operating characteris tics If three way valves with a travel time greater than 10 sec onds are used modify the setting of parameter 0231 Description Menu Parameter Default Value to be set UOM no Three way Mn02 0231 12 Set the travel time sec travel time
66. limit for 1 0181 45 C compensation curve in zone LT1 MINIMUM outlet set point limit for Mn01 0195 23 compensation curve in zone LT2 MAXIMUM outlet set point limit for MnO1 0196 45 compensation curve in zone LT2 MINIMUM outlet set point limit for Mn01 012F 23 compensation curve in zone LT3 MAXIMUM outlet set point limit for MnO1 012G 45 C compensation curve in zone LT3 EN 03 2011 WWR MTD2 BWR MTD2 FJ CONTROL AND OPERATING CHARACTERISTIC Water outlet set point compensation diagram in COOL ING The compensation curve in cooling mode can be modified to allow correct heat pump operation depending on the cooling system used radiant panels fan coils Points T1 and T2 correspond to two outside temperature values that respectively identify the maximum and minimum System outlet temperature Outlet set point Tm1 Tm2 he Te1 Te2 Outside temp The compensation curves in COOLING are divided into SYSTEM curve determines the set point for heat pump operation and any high temperature zones The set point calculated refers to the heat pump return water tempera ture The water outlet temperature is usually 5 lower than the return temperature This temperature difference may change depending on the flow rate and the type of System Make sure that the temperature difference is with in the limits required by the manufacturer ZONE curve determines the water
67. measure the room temper ature away from cold air flows sunlight or other sources of heat leave enough space above the room controller to allow assembly and removal where necessary If the room controller is removed from its base it discon nects from the power supply and consequently is no longer operating Installation procedure Assembly Separate the front from the rear of the terminal using a screwdriver r 1 Disconnect the 4 pin connector from the front part 2 Remove the cover A1 unscrewing the screw A2 3 Fix the controller support to the wall using the holes A3 4 Support hole size and spacing in figure 5 Make the electrical connections as shown in the figure 6 also see the wiring diagram UA H H of 2 D A5 room controller terminal block Number of wires 5 shielded Power supply wire size 0 5 mm Maximum distance 500m 4 Higiene sp E EN 03 2011 WWR MTD2 BWR MTD2 INSTALLER CONNECTIONS Close the cover A1 and secure it with the screw A2 Plug in the 4 pin connector figure 7 Replace the terminal starting with the lower tabs applying a hinge movement Ma
68. mptied before being recharged The R410A refrigerant must only be charged in the liq uid state Operating conditions other than rated conditions may produce considerably different values Tightness testing or identification of leaks must only be carried out using R410A refrigerant gas checking with a suitable leak detector The refrigerant circuit must not be charged with a refrigerant other than that indicated on the rating plate and in this manual The use of a different refrigerant may cause serious damage to the compressor Oxygen acetylene or other flammable or poisonous gas es must never be used in the refrigerant circuit as they may cause explosion or poisoning Oils other than those indicated must not be used The use of different oil may cause serious damage to the compressor USEFUL INFORMATION For information on technical assistance and obtaining spare parts contact CLIMAVENETA S P A AFTER SALES DEPARTMENT RESIDENTIAL BUSINESS Via Duca d Aosta 121 31031 Mignagola di Carbonera TV ITALY Tel 39 0424 509500 Fax 39 0424 509563 www climaveneta com info climaveneta com EN 03 2011 WWR MTD2 BWR MTD2 LIST OF PARAMETERS UI Description Menu Parameter no
69. n Before filling check that the system drain valve is closed Open all system and terminal air vents Open system shut off valves Start filling by slowly opening the system water fill valve outside the unit When water begins to leak out of the terminal air vent valves close them and continue filling until the pressure gauge indicates a pressure of 1 5 bar and 2 bars It is recommended that this operation be repeated after the unit has been operating for a number of hours The pressure in the system should be checked regularly and if it drops below 1 bar the water content should be topped up Check the tightness of the joints EN 03 2011 WWR MTD2 BWR MTD2 ELECTRICAL CONNECTIONS Ap The heat pumps must be installed downstream of a switch QF1 see wiring diagram as required by the stan dards in force in the country where the unit is installed Con nection to the mains power supply and the connection of the flow switch to the corresponding terminals must be per formed by authorised personnel in compliance with the stan dards in force For all electrical work refer to the electrical wiring diagrams in this manual It is also recommended to check that The characteristics of the mains electricity supply are ade quate for the power ratings indicated in the electrical spec ifications below also bearing in mind the possible use of other equipment at the same time Power to the u
70. n that is easy to access for maintenance REQUIRED component this must be installed before water circulates through the heat exchanger otherwise the warranty will be void The flow switch is installed on the unit s outlet to the heating system circuit and is electrically connected REQUIRED component this must be installed before water circulates through the heat exchanger otherwise the warranty will be void Water to water units only The flow switch is installed unit s outlet to the source circuit and is electrically connected REQUIRED component this must be installed before water circulates through the heat exchanger otherwise the warranty will be void EN 03 2011 WWR MTD2 BWR MTD2 INSTALLER OPERATIONS CHECKLIST UIA Checks as described in the paragraph on Checking and starting up the unit The connection pipes are suitably supported so that these do not weigh on the appliance Correct sizing of the expansion vessel has been verified according to the system water content and the expected operating temperature The position of the outside air temperature probe complies with the information provided in the installation manual The position of the room controllers installed complies with the information provided in the installation manual The position of the DHW storage tank probe complies with the information provided in the installation manual Units with heat recovery only The non return valve is fitted on the domes
71. nfluence in HEATING The compensation curve determines the heating water tem perature this may then be corrected based on the difference between the desired room set point and the actual room tem perature The correction made to the water temperature depends on the Room Authority coefficient The higher the value of the Room Authority the higher the correction to the system water temperature and vice versa This allows the water temperature to adapt quickly to changes in the conditions inside the room The function can only be ENABLED if the A5 room controller is positioned in the room and used to measure the reference temperature Set authority values for the SYSTEM equal to or greater than those for zones LT1 LT2 LT3 Enabling room temperature influence on SYSTEM deviates the calculated heat pump return water temperature set point Enabling room temperature influence on ZONE LT1 172 LT3 deviates the calculated water outlet temperature set point to the system controlled by the mixing valve C System water temperature limits in HEATING These define the temperature limits minimum and maxi mum that can be requested from the circuit and never exceeded In the figure the minimum limit is 30 and the maximum is 40 Between 30 and 40 the water temperature will be able to vary based on the trend in outside temperature For systems configured with mixed zones the limits for the SYSTEM curve and ZONE curve m
72. ng mode Tm2 Mn01 0138 18 C Maximum outside temperature correspond ing to min outlet temperature Te2 Enable compensation curve zone LT3 07 Disabled 1 Enabled Mn01 Mn01 0139 36 0 C Maximum outlet temperature set point limit in cooling mode Tm1 Mn01 012H 20 C Minimum outside temperature corresponding to max outlet temperature Te1 Mn01 012J 23 C Minimum outlet temperature set point limit in cooling mode Tm2 Mn01 012L 18 C Maximum outside temperature correspond ing to min outlet temperature Te2 Mn01 012M 36 C Description Menu Pa rameter no UOM U M Enable compensation for room Mn01 humidity SYSTEM 07 Disabled 17 Enabled 0156 Room relative humidity value to start Mn01 increasing SYSTEM water return temperature set point 0157 70 Maximum return temperature hys Mn01 teresis corresponding to 100 rela tive humidity Enable compensation for room humidity ZONE LT1 07 Disabled 17 Enabled Mn01 0158 0171 C Room relative humidity value to start 1 increasing water outlet temperature set point ZONE LT1 0172 70 Maximum outlet temperature hys Mn01 teresis corresponding to 100 rela tive humidity Enable compensation for room humidity ZONE LT2 0 Disabled 1 Enabled Mn01 0173 0186 C
73. ngeover set 1 0108 24 point COOLING Automatic mode changeover dif 1 0109 2 ferential COOLING System pump operation When reaching the system water set point the compressor stops and the system pump is activated periodically so as to minimise energy consumption Pump operating time can be selected using parameter 0147 while the interval between one sniffing cycle and the next is set using parameter 0148 Intermittent activation of system pump operation can be selected using parameter 0143 0 system pump always on to 1 system pump activated at intervals In systems with fan coils the time between one sniffing cycle and the next should be reduced in order to avoid cool ing excessive of the water and if the system water content is equal to the minimum value shown in the paragraph on water connections parameter 0143 should be set to 0 EN 03 2011 WWR MTD2 BWR MTD2 5 CONTROL AND OPERATING CHARACTERISTICS UI operation with fixed set point Description Menu Parameter Default UOM System water set point compensation using the compensa Enable return set point in 1 0155 0 tion curves can be disabled HEATING To enable fixed set point operation set parameter 0152 0 0 Fixed set point in heating and 0154 0 ENABLED The heat pump will operate bas
74. nit must be turned on only after installa tion work plumbing and electrical has been completed electrical connections must be carried out by quali fied personnel in accordance with legislation in force in the country concerned Respect instructions for connecting phase neutral and earth conductors The power line should be fitted upstream with a suitable device to protect against short circuits and leakage to earth isolating the installation from other equipment AN Voltage must be within a tolerance of 10 of the rated power supply voltage for the unit for three phase units the unbalance between the phases must not exceed 3 If these parameters are not respected contact the elec tricity supply company For electrical connections use double insulation cable in conformity with legislation in force in the country con cerned thermal overload switch and a lockable mains dis connect switch in compliance with the CEI EN stan dards contact opening of at least 3mm with ade quate switching and residual current protection capacity based on the electrical data table shown below must be installed as near as possible to the appliance Avan efficient earth connection is obligatory The manufacturer cannot be held liable for any damage caused by the failure to correctly earth the unit In the case of three phase units ensure the phases are connected correctly Do not use water pipes to earth the unit Electri
75. onella prevention cycle time Mn02 0221 h Enable Legionella prevention function 0 Not enabled 1 Enabled Mn02 0222 Legionella prevention function with 0 heat pump only 1 electric heater only 2 heat pump electric heater Mn02 0223 Maximum Legionella prevention function duration Mn02 0225 min Minimum heat pump operating time for system Mn02 0226 Maximum heat pump operating time to reach domestic hot water set point Mn02 0227 Three way valve travel time for domestic hot water production Mn02 0231 sec Enable electric heater 0 Heater not enabled 1 Heater enabled 0300 Enable boiler 0 Boiler not enabled 1 Boiler enabled Mn03 0301 Activation for low outside air temperature 0 Function not enabled 1 Function enabled Mn03 0303 Outside air temperature to enable electric heater Mn03 0304 Activation for low outside air temperature 0 Function not enabled 1 Function enabled 0306 Outside air temperature to enable boiler Mn03 0307 d wel mn Electric heater activation delay time un Mn06 0616 min allows the heat pump to reach steady operation and thus avoid activating the heater when not needed Integration time to activate outlet electric heaters Mn06 0617 Gries e eg Sa steady operation and thus avoid activating the boiler when not needed 0619 min Integration time to activate boiler Mn06 0619 Enable manual heater operation Mn06 0620 BT1 Heat exchanger
76. oom controller mode z um gm um 71 1 126 A5 room controller 5 mode CQ EN 03 2011 WWR MTD2 BWR MTD2 DESCRIPTION OR ROOM CONTROLLER BUTTONS AND DISPLAY BUTTONS e OT c WES J DISPLAY 1 Y R DOC mn IC B es M 19 9 BT NO Description 1 Temperature and humidity probe 2 Domestic hot water DHW production button ON OFF button 3 ESC button in parameter programming mode Knob 4 Turning scroll room temperature values parameters and menus Pressing Confirm settings 5 Select operating mode button 6 Set time bands button 7 Backlit display a e i EE Description Function 1 Operating mode Heating Cooling automatic mode changeover based on outside air temperature Domestic hot water production enabled 2 Main field Room temperature humidity room set point parameter val ue display 3 Temperature unit of measure 4 Set point On indicates room set point programming 5 Relative humidity 6 Time band Indicates the type of active time band 7 Day of the week error message
77. operation of the unit Add glycol to the water circuit if the unit is not used during the winter or the circuit is not emptied Handle the unit with the utmost care see weight distrib ution table to avoid damage EN 03 2011 WWR MTD2 BWR MTD2 EJI RECEIVING AND HANDLING THE PRODUCT VISUAL INSPECTION When the items are consigned by the carrier make sure that the goods delivered correspond to the description on the delivery note comparing this against the data on the packaging label make sure the packaging and the unit are intact If damage or missing components are noted indicate this on the delivery note A formal complaint should be sent via fax or registered post to the After Sales Department within eight days from the date of receipt of the items HANDLING PACKAGED UNITS The unit should always be handled by qualified personnel using equipment adequate for the weight of the unit in com pliance with the safety standards in force and subsequent amendments Lifting by forklift 1 Insert the forks under the long side of base opening the forks as fare as possible Lifting by crane 2 Use slings with hooks suitable for the weight being lifted Secure the hook to the lifting bracket fixed to the unit use always four equal length slings as shown in the figure to ensure the weight is balanced STORING THE UNITS The units must be stored sheltered from direct sunlight rain wind or sand Avoid
78. ption Menu Parameter Value to be UOM no set Enable the contact as Mn01 015D 1 0 Reduced electricity rate 1 Stop operation due to excess power consumption Contact closed heat pump operation not allowed Contact open heat pump operation allowed 5 Reduced electricity rate contact Forced refilling of the reserve storage tanks can be activat ed based on different electricity rates during the day During reduced rate periods the heat pump can be forced on so as to heat the domestic hot water or system storage tank where fitted Configure the contact selecting the desired function by set ting parameter 015D Description Menu Parameter Value to be UOM no set Enable the contact as Mn01 015D 0 0 Reduced electricity rate 1 Stop operation due to excess power consumption Enable the set point as Mn00 0015 0 0 Economy 1 Comfort Set the value of the domestic hot 0022 Example water ECONOMY set point 47 Set the value of the domestic hot 00 0023 Example water COMFORT set point 50 Contact closed forced operation during the reduced rate period Contact open heat pump operation at full electricity rate During operation at reduced electricity rate contact closed the domestic hot water set point is 50 as shown in the example with the contact open it s 47 This allows ope
79. r set point compensation in heating or cool ing see paragraph B room temperature influence see paragraph C minimum and maximum heating water temperature limit see paragraph D room temperature set point A System water temperature set point compensation The water temperature set point in heating or cooling is cal culated based on the outside temperature trend according to settable curves Water set point compensation diagram in HEATING The compensation curve in heating mode can be modified to allow correct heat pump operation depending on the heat ing system used radiant panels radiators fan coils Example Selecting heating curve 1 4 with an outside air temperature of 5 C gives a water temperature of 55 C A heating curve that is too high gives an excessive outlet temperature a curve that is too low may mean the desired room temperature is not reached The curve can be set separately for each zone depending on the type of room terminal The following compensation curves are recommended Type of terminal Compensation curve number Radiant panels 0 25 0 7 Fan coils 0 9 1 1 Radiators 1 2 1 5 The compensation curves in HEATING are divided into SYSTEM curve determines the set point for heat pump ope ration and any high temperature zones The set point calcu lated refers to the heat pump return water temperature The water outlet temperature is usually 5 C higher than the retu
80. ration at a higher temperature within the unit s operating limits exploiting the lower electricity cost WWR MTD2 BWR MTD2 EN 03 2011 INSTALLER CONNECTIONS F3 System flow switch System flow switch connection compulsory component F5 Source flow switch Source flow switch connection required component BT8 Domestic hot water storage temperature probe The domestic hot water temperature inside the storage tank is measured using probe 8 UA EN 03 2011 WWR MTD2 BWR MTD2 GENERAL TECHNICAL DATA D WWR MTD2 Rif 0011ms 0025ms 0031ms 0041ms 0025t ts 0031t ts 0041t ts 0061t ts 0071t ts 0091t ts 0101t ts 0121t ts Radiant panel heating Rated heating capacity kW 7 23 9 66 12 1 15 3 9 85 12 1 15 9 211 26 2 305 35 43 8 Total power consumption kW 1 35 1 78 2 3 2 86 1 7 2 17 2 88 3 68 4 62 5 18 6 04 7 63 5 14 5 39 5 26 5 28 5 76 55 5 48 5 7 5 7 5 87 5 83 5 76 14511 Heat exchanger rated water flow rate m h 1 25 1 67 2 1 2 65 1 71 2 09 2 76 3 66 4 54 5 28 6 06 7 58 Heat exchanger pressure drop kPa 14 7 20 7 32 352 21 5 31 6 38 1 39 5 42 36 7 50 4 49 4 Hydronic systems heating Heating capacity kW 6 83 9 23 11 6 14 6 9 17 11 4
81. ress the mode button AUTOMATIC mode changeover selected Lj LJ 030 Cooling Press the mode button COOLING mode selected Press the mode button HEATING mode selected AUTO automatic mode changeover based on the outside air temperature Selecting the room temperature set point Turn the knob The room temperature set point is displayed Turn the knob to change the room temperature set point Wait a few seconds for confirmation The display shows the room tem perature EN 03 2011 WWR MTD2 BWR MTD2 EN OPERATION AND FUNCTIONS OF THE ROOM CONTROLLER Domestic hot water production Domestic hot water production not enabled Press the Domestic hot water production enabled The symbol is displayed Selecting the domestic hot water set point The domestic hot water temperature is measured by the probe installed inside the DHW storage tank X3 sec Press thei buttons together for 3 seconds Turn the knob and select the value of para meter 012 Press the knob Turn the knob to select th
82. rn temperature This temperature difference may change depending on the flow rate and the type of system Make sure that the temperature difference is within the limits required by the manufacturer ZONE curve determines the water outlet temperature in the mixed circuit For systems configured with mixed zones the SYSTEM curve and ZONE curve must be selected The system and zone curve work in cascading the mixed zone curve may therefore not request a higher value than the one supplied by the system curve WWR MTD2 BWR MTD2 EN 03 2011 100 2 2 2 90 18 1 6 14 12 8 60 1 8 50 0 8 3 40 06 0 4 304 0 2 20 10 20 15 10 5 0 5 10 15 20 25 30 Outside air temp Description Menu Parameter Default UOM no Enable SYSTEM compensation Mn01 0152 0 curve 0 Disabled 1 Enabled SYSTEM compensation curve Mn01 0159 0 8 number Enable compensation curve zone Mn01 0167 0 LT1 0 Disabled 1 Enabled Compensation curve number zone LT1 Mn01 0174 0 7 Enable compensation curve zone Mn01 0182 0 LT2 0 Disabled 17 Enabled Compensation curve number zone LT2 Mn01 0189 0 7 Enable compensation curve zone Mn01 015E 0 LT3 0 Disabled 1 Enabled Compensation curve number zone LT3 01 012A 0 7 CONTROL AND OPERATING CHARACTERISTICS B Room temperature i
83. sary B SUPPLEMENTARY the boiler operates in supplemen tary heating mode together with the compressor to satisfy the heating load Boiler operation reflects the trend in water temperature as shown on the graph in figure 3 Boiler Boiler operating parameters in REPLACEMENT mode Description Menu Parameter Value to be UOM no set Enable electric heater Mn03 0300 0 0 Heater not enabled 1 Heater enabled Activation Boiler Mn03 0301 1 0 Boiler not enabled 1 Boiler enabled Type of boiler operation Mn01 010H 1 0 Supplementary 1 Replacemen Integration time to activate boiler Mn06 0619 600 C sec Set the parameters following the sequence described in the table Boiler operating parameters in SUPPLEMENTARY mode Description Menu Parameter Value to be UOM no set Enable electric heater Mn03 0300 0 0 Heater not enabled 1 Heater enabled Activation Boiler 0301 1 0 Boiler not enabled 1 Boiler enabled Type of boiler operation Mn01 010H 0 0 Supplementary 1 Replacemen Boiler activation delay time 0618 60 allows the heat pump to reach steady operation and thus avoid activating the boiler when not needed Integration time to activate boiler Mn06 0619 600 C sec Set the parameters following the sequence described in the table EN 03 2011 WWR MTD2 BWR MTD2 88
84. sembly for the system and two way modulating valve for the source lt WWR MTD2 s D e EN Reverse cycle water water heat pump with domestic hot water production me MOT WATER Built in water pump assembly for the system and two way modulating valve for the source BWR MTD2 Reverse cycle ground source heat pump with domestic hot water production Built in water pump assembly for the system and source BWR MTD2 s Reverse cycle ground source heat pump with domestic hot water production Built in water pump assembly for the system and source INSTALLATION D CHOICE OF INSTALLATION SITE POSITIONING Before installing the unit agree with the customer the site Install the vibration damping feet accessories where it will be installed taking the following points into con Check the unit supports and weights before positioning sideration Make sure that the unit is level adjust the height of the check that the support surface is adequate to support the support feet if necessary weight of the unit Use the flexible joints supplied for the water connections respect safety distances between the unit and other equip Make sure there is easy access to the water circuit and ment or structures so that the fan air intake and outlet are electrical parts not blocked in any way Follow the instructions shown in the chapter on DIMEN SIONED DRAWINGS to allow room for maintenance oper ations Unit for indoor installation I
85. should keep them carefully for future consultation in the event of maintenance or service All repair or maintenance work must be carried out by the Company s Technical Service or qualified personnel following the instructions in this manual The air conditioner must under no circumstances be modified or tampered with as this may create situations of risk Failure to observe this condition absolves the manufacturer of all liability for resulting damage WAIVER OF LIABILITY UI This publication is the sole property of the Manufacturer Any reproduction or disclosure of such is strictly prohibited without the written authorisation of the Manufacturer This document has been prepared with maximum care and attention paid to the content shown Nonetheless the Man ufacturer waives all liability deriving from the use of such document Read this document carefully All work must be performed components selected and materials used in complete accor dance with the legislation in force in material in the country concerned and considering the operating conditions and intended uses of the system by qualified personnel FUNDAMENTAL SAFETY RULES UI When operating equipment involving the use of electricity and water number of fundamental safety rules must be observed namely The unit must not be used by children or by unfit per sons without suitable supervision Do not touch the unit with bare feet or with wet or damp parts of th
86. t for parameter 0140 to prevent the pipes inside the home from freezing Description Menu Parameter Default UOM Ke Inside temperature to enable frost Mn01 0140 14 protection T Inside temperature Frost protection based on outside air temperature System and DHW Frost protection on the heating and domestic hot water cir cuits based on outside air temperature is always active ON even when the heat pump is off The system and domestic hot water pumps are activated when the outside air temperature falls below the value set for parameter 0141 Description Menu Parameter Default UOM no OFF Outside temperature to enable Mn01 0141 4 C Outside air T frost protection 0141 Outside temperature to enable frost protection WWR MTD2 BWR MTD2 EN 03 2011 SYSTEM CONFIGURATION U controllore della pompa di calore permette la configurazione di 15 differenti tipologie di impianto selezionabili impostando il parametro 0101 La tabella seguente riporta gli impianti configurabili Menu Parameter Mixedzone Mixed zone 2 Mixedzone3 e 1 coils zone 2 fan zone 3 fan coils expansion radiators radiators radiators lation module m Mn01 0 X 0 Mn01 1 X X 1 Mn01 2 X 1 Mn01 3 X X 1 Mn01 4 X X X 2 Mn01
87. t the formation of condensate and heat loss The insulating material must be a vapour barrier Make sure that the control and shut off devices protrude from the insulation 6 Atthe lowest points in the system install drain valves for easy emptying 7 Atthe highest points in the system install automatic or manual air vent valves 8 The unit is fitted as standard with an expansion vessel make sure this is correctly sized for the water content of the system and the expected operating temperature oth erwise install an additional expansion vessel WWR MTD2 BWR MTD2 EN 03 2011 9 The connection piping should be supported in such a way as to avoid it weighing on the unit Failure to install the flow switches will mean the heat exchangers are not protected in the event of no flow of liquid The Manufacturer cannot be held liable for any damage to the unit and or the system following the fail ure to install these devices or the filter The correct operation of the components that help ensure the safety of the appliance and the system should be checked regularly make sure the filters are clean check operation of the flow switches installed Make sure that the frost protection heaters on the heat exchanger are powered when the unit is OFF Water flow to the heat pump must conform to the values shown in the section on General Technical Data The flow of water must be maintained constant during oper
88. tic hot water circuit All safety conditions have been respected The unit is fixed to the surface it rests on Water connections have been carried out as indicated in the installation manual All water connections are tight All electrical connections are tight Make sure the water circuit has been washed and drained There is no air in the system vent if necessary The valves on the water circuit are open Electrical connections have been carried out correctly Voltage is within a tolerance of 10 of the rated voltage for the unit Unbalance between phases is less than 2 for three phase units Maintenance clearances comply with the specifications in the Installation manual under the section on POSITIONING Power supply electrical complies with the data on the rating plate and specified in the Installation manual under the section on MAINS POWER SUPPLY CONNECTION The system water content complies with the specifications in the Installation manual under the section on WATER CONNECTIONS Suitable water flow rate for operation of the entire unit is guaranteed as specified in the Installation manual under the section on WATER CONNECTIONS Air to water units only The system has been protected with antifreeze respecting the quantities shown in the Installation manual under the section on WATER CONNECTIONS The DHW storage tank has been fitted with an electric heater for Legionella prevention CHECKED
89. ting the unit Make sure the switch QF1 is in the OFF position Fig 1 Make sure the contact of the on off device SA1 see the wiring diagram is open if featured Make sure the A5 room controller is off Position the main unit switch QS1 in the ON position Fig 2 Move switch QF1 outside the unit to ON Fig 3 WWR MTD2 BWR MTD2 EN 03 2011 N ON 0 OFF CHECKING AND STARTING UP THE UNIT Once having powered up the heat pump the display on the room control unit shows this message 1 Followed by 2 Wait a few minutes the unit is ready to operate when the display shows 3 Before starting up power up the unit for at least two hours with the compressor off so as to allow the oil in the compressor sump to heat up When commissioning the heat pump the user must config ure the type of system See the chapter System configuration check the applica tion diagrams that the control unit is able to manage Set the current date and time on the A5 room controller Configure the type of system and the number of A5 room controllers See the chapter System configuration Switch on the unit by pressing button 3 Select the required operating mode by pressing button 5 Select the required room temperature by turning knob 4 For further information on the operation and functions of the room controller see Operation and functions of the r
90. to be UOM no set Electric heater operating mode Mn02 0202 2 0 Heat pump only 1 Electric heater only 2 Heat pump Electric heater Domestic hot water temperature 00 0023 Example Set point with heat pump 55 Domestic hot water temperature Mn02 0209 Example C set point with heater 65 0209 0023 Compressor Heater Legionella prevention function with electric heater The Legionella prevention function ensures the elimination of the Legionella bacteria that reside in domestic water stor age tanks The temperature and duration of the Legionella prevention cycles are typically 2 minutes gt 70 C 4 minutes gt 65 C 60 minutes gt 60 To enable the Legionella prevention function set 0222 1 Description Menu Parameter no Value to be set UOM Domestic hot water heating 0 heat pump only 1 electric heater only 2 heat pump electric heater Mn02 0202 2 Legionella prevention function with 0 heat pump only 1 electric heater only 2 heat pump electric heater Mn02 0223 Domestic hot water temperature set point for Legionella prevention Mn02 0211 Example 65 Legionella prevention cycle day MONDAY 0 1 yes Mn02 0213 0 Legionella prevention cycle day TUESDAY 0 1 yes Mn02 0214 0 Legionella prevention cycle day WEDNESDAY 0 1
91. uit pump Enable contact HL1 HIGH TEMPERATURE ZONE The contact closes and the pump or motor driven shut off valve Mn01 015A 0 3 is activated obligatory values for the present configuration WWR MTD2 BWR MTD2 EN 03 2011 MAINTENANCE AND SERVICE Alarm signals When an alarm is activated the symbol comes one Ir13 UU Wed Displaying alarms Press the and mode buttons for 3 sec onds Turn the knob Display the alarm codes Press the knob to confirm Resolve the problem and then reset the alarms using the procedure described in Resetting alarms Resetting alarms Press the and mode buttons for 3 sec onds Turn the knob Select ES ALN Press the knob to confirm Alarms reset Alarm log The alarm log can only be displayed using the service key pad Contact an authorised service centre The room controller can display the most recently activated alarm code from Mn11 parameter 1100 no of alarms saved in the log visible only with service keypad parameter 11017 code of last alarm activated parameter 1102 7 alarm activation hour parameter 1103 alarm activation minutes parameter 1104 alarm activation day parameter 1105 alarm activation month paramet
92. und power based on measurements performed in accordance with ISO 3744 6 Average sound pressure on reflecting surface Q 2 at a distance of 1 metre from the outside surface of the unit WWR MTD2 BWR MTD2 EN 03 2011 GENERAL TECHNICAL DATA BWR MTD2 Rif 0011ms 0025ms 0031ms 0041ms 0025t ts 0031t ts 0041t ts 0061t ts 0071t ts 0091t ts 0101t ts 0121t ts Radiant panel heating Rated heating capacity kW 5 46 7 42 9 37 11 9 7 61 9 26 12 4 162 20 1 23 3 269 32 5 Total power consumption kW 1 31 1 77 2 27 2 77 1 69 2 09 2 79 35 443 4 93 5 78 9 02 COP 1 4 23 4 11 4 07 4 25 447 443 443 4 63 4 57 4 76 4 64 3 61 COP EN 14511 Heat exchanger rated water flow rate m h 1 32 1 6 2 15 2 81 348 4 04 4 66 5 64 Heat exchanger pressure drop kPa 12 9 18 6 23 23 2 24 6 21 5 29 8 274 Hydronic systems heating Heating capacity kW 5 23 7 21 9 11 11 5 7 13 8 84 12 15 5 19 1 222 25 5 32 5 Total power consumption kW 1 69 2 33 2 97 3 55 2 21 2 66 3 65 441 5 64 622 7 35 9 02 COP 2 3 06 3 13 3 03 3 19 323 3 26 3 24 3 52 341 3 58 3 45 3 61 Heat exchanger water flow rate m h 0 909 1 25 1 58 2 1 24 1 54 2 08 2 69 3 31 3 86 4 43 5 64 Heat exchanger pressure drop kPa 7 75 11 6 18 2 20 11 4 17 1
93. ure switch system flow switch F3 activated Verifica flusso acqua Verifica presenza aria nell impianto A030 Compressor operating hours reached Scheduled maintenance A033 System pump operating hours reached Scheduled maintenance A034 Domestic hot water pump operating hours reached Scheduled maintenance A035 Mixed zone pump operating hours reached Scheduled maintenance A036 Fan operating hours reached Scheduled maintenance A038 System heat exchanger frost prevention alarm Scheduled maintenance A041 DHW storage temperature too high A042 Inside frost prevention alarm A045 Outside air temperature probe EE e Faulty probes replace terminal A047 A048 A049 A050 Thermostatic valve driver Contact service centre A051 A052 A053 A054 Legionella prevention alarm Check connections A055 Temperature probe N THC n 1 Probe faulty or disconnected A Check connections A056 Address setting error on remote terminal supplied with the unit Check address Check connections A057 Address setting error on expansion module 2 Check address must be 1 A058 Temperature probe in low temperature zone LT2 expansion 2 Probe faulty or disconnected p Check connections A063 Address setting error on expansion module 3 Check address must be 2 A064 Temperature probe in low temperature zone LT3 expansion 3 Probe faulty or disconnected A075 Water temperature too high in mixed circuit expansion module 1 A077 Water temperature too high in mixed circuit expansion module 2
94. ust be selected Example referred to compensation curve 1 0 10 25 50 75 99 System or zone water temperature deviation 5 2 5 2 45 1 05 0 0 5 1 1 5 2 DT Room temperature Room set point Description Menu Parameter Default UOM no Enable room temperature influ Mn01 0163 0 ence on SYSTEM 0 Disabled 1 Enabled SYSTEM Room Authority Mn01 0164 30 Enable Room temperature influ Mn01 0178 0 ence on LT1 07 Disabled 1 Enabled LT1 Room Authority Mn01 0179 30 Enable Room temperature influ Mn01 0193 0 ence on LT2 07 Disabled 1 Enabled LT2 Room Authority Mn01 0194 30 Enable Room temperature influ Mn01 012D 0 ence on LT3 0 Disabled 17 Enabled LT3 Room Authority Mn01 012bE 30 Outlet set point with room temp 20 100 90 80 _ 70 2 60 2 50 5 3 40 PETS 30 20 10 20 15 10 5 0 5 0 15 20 25 30 Outside temp Description Menu Parameter Valore di UOM no MINIMUM outlet set point limit for 1 0165 30 C SYSTEM curve MAXIMUM outlet set point limit for MnO1 0166 48 C SYSTEM curve MINIMUM outlet set point limit for 1 0180 23 C compensation curve in zone LT1 MAXIMUM outlet set point
95. valve 4 Calibrating valve 8 Safety valve 12 Temperature sensor 16 System vent Heat exchange circuit water connection diagram WWR Factory connections Installer connections 1 6 B4 9 14 3 F X 4 SSC WELL WATER 11 12 INLET 3 WELL WATER 10 5 SH OUTLET IT bed x Led Y i 1 Pressure gauge 5 Thermometer 9 Fill top up 13 Unit drain valve 2 Vibration damper joint 6 Pump 10 Temperature sensor 14 System vent 3 Shut off valve 7 Flow regulation valve 11 Differential pressure switch 4 Flow switch 8 Wire mesh filter 12 Drain chemical washing valve WWR MTD2 BWR MTD2 EN 03 2011 WATER CONNECTIONS Heat exchange circuit water connection diagram BWR Factory connections Installer connections 1 E 11 16 2 4 cl i GROUND SOURCE 13 14 LOOP RETURN 8 6 GROUND SOURCE 12 5 LOOP OUTLET NR F SR R Y 13 14 1 Pressure gauge 5 Flow switch 9 Expansion vessel 13 Differential pressure switch 2 Vibration damper joint 6 Thermometer 10 Wire mesh filter 14 Drain chemical washing valve 3 Shutoff valve 7 Pump 11 Fill top up 15 Unit drain valve 4 Calibrating valve 8 Safety valve 12 Temperature sensor 16 System vent FILLING THE SYSTEM Before starting to fill place the unit mains ANThe system must be filled to a pressure of between 1 Switch QF1 in the OFF positio
96. water inlet temperature probe Mn09 0900 BT2 Heat exchanger water outlet temperature probe Mn09 0901 BT8 Domestic hot water probe Mn09 0902 BT7 Unit control air temperature probe Mn09 0903 BT9 Storage tank probe Mn09 0904 BT11 Outside air temperature probe for set point management Mn09 0905 1 Condenser evaporator control pressure transducer Mn09 0906 bar EN 03 2011 WWR MTD2 BWR MTD2 INSTALLER OPERATIONS CHECKLIST UI Installer Type of application Street City town Unit model installed Is there a system design YES NOU Installation date Systems included Winter heating AT radiators Winter heating MT fan coil Winter heating BT radiant panels Mark the type of system installed and describe the components in the corresponding tables Heating system circuit Postcode ZIP code Designer number Province State Serial number If YES has the system been developed completely in accordance with the design YESU NOU Summer cooling DHW production Solar thermal installed Storage tank Additional expansion vessel Volume

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wwr mtd2 bwr mtd2 0011÷0121 installation - operating