user manual OF HH8
Contents
1. Remark Parameter 3 Unit with single system Unit with double system Parameter V NO Unit can not restart automatically Unit can restart automatically YES Parameter Unit only with the cooling function C Unit with all the heat pump function H C Unit with auxiliary electrical heating E H C Unit with only heating function produced by heat pump H Parameter 3 NORMAL Water pump is always on S earlier than the compressor and shuti Water pump will start SPECIAL S later than the compressor down Cooling Ambient temperature 35 24j Inter outlet water temperature 12i 7i Heating Ambient temperature 7j 6j Inter outlet water temperature 30j 35j Above information just for your reference Please subject to nameplate on the unit 20 5 4 Installation 4 1 Installation location The units are air cooled Because of this they must be installed outdoors in an area with sufficient clearance to provide free air circulation through the condenser coil Any free air circulation restrictions will reduce the air flow decrease the cooling capacity increase the power input and in certain cases prevent the group from operating by excess condensation pressure Itis prohibited to connect the helicoid fan units to duct networks because of the pressure drops created by such networks In the event that the unit is located in an area exposed to high wind avoid the wind striking the fan surfaces directly Th2. HH8 Domestic Heat Pump Installation and Operation Manual code 20111102 0001 8 Maintenance 8 1 Malfunction table You could determine or remove failures according to the following malfunction table WATER IN Temp Sensor is open or Check or replace the water inlet Short circuit temp Sensor WATER OUT Temp Sensor is open or Check or replace the water Short circuit outlet_ temp Sensor PIPE TEMP 1 Temp Sensor is open or Check or replace the Coil 1temp Short circuit Sensor PIPE TEMP 2 Temp Sensor is open or Check or replace the Coil 2temp Short circuit Sensor AMBIENT TEMP Temp Sensor is open or Check or replace the ambient Short circuit temp Sensor TEMP DIFFERENCE Outlet water Check the flow volume to see PROTECT temperature is too low whether it meets the requirements TOO COOL FAILURE Outlet water Check the flow volume to see temperature is too low whether it meets the requirements Ambient temperature FROSTBITE 1 PROTECT is too low Ambient temperature FROSTBITE 2 PROTECT is too low SYSTEM 1 PROTECT System protection failure Check all the protection devices of of system 1 system 1 System protection failure Check all the protection devices of SYSTEM 2 PROTECT of system 2 system 2 WATER FLOW 1 Water flow volume is not enough Check the flow volume to see the 2 No water in water loop water system is block or not POWER PHASE Power supply connection i SY
3. MODE SELECT OA UNIT STATUS Prg Esc 4 ressi wi MODE SELECT OA UNIT STATUS Prg w Esc 4 MAIN MENU OA PARAMETER TIME Prg w TIMP CURVE Esc 4 MAIN MENU PARAMETER Press Prg TIME TIMP CURVE Pressj Y MAIN MENU OA Press amp PARAMETER lt _ _ TIME Prg y TIMP CURVE Esc WATER IN 17i WATER OUT 25i OA PIPE 1 26 PIPE 2 26 AMBIENT PEMP 23 Prg Ww Press f te Esc 4 Press E8 packito the former interface MODE SELECT OA Press E nit status Prg yw back to the former cco interface 14 6 Electrical connection 6 1 Electrical connection Before starting any electrical connection check that the electrical supply corresponds to the specification indicated on the unit s maker s plate and to the unit s electrical characteristics table Important It is the responsibility of the installer to provide circuit breaker protection corresponding to the machine s capacity refer to the unit electrical characteristics table near to the machine Connection to the electrical network must comply with current electrical standards To carry out electrical connection E Open the inspection panel which allows access to the junction box To remove the inspection panel extract the controller from its support b
4. u ems DATE 25 03 2011 CLOCK 16 02 A TIMER ON v 08 00 TIMER OFF v 22 30 Prg w Esc 4 ori M Pressi y Fashing DATE 25 03 2011 CLOCK 1602 A TIMER ON v 08 00 t TIMER OFF v 22 30 Prg w Esc 4 Wien press to ri iPress t 16 5 Hydraulic connections 5 2 Connection of the chilled water loop Check before connecting the unit that the installation is leak free and clean Install manually controlled isolating valves not provided with a diameter corresponding to the diameter of the main pipework on the Water Inlet and Outlet connection of the unit without needing to the drain installation Itis also recommended to install valves of the water supply lines and on the return of each terminal treatment unit so to allow work on each appliance without affecting other parts of the installation These valves allow also to adjust the flow arriving at each terminal units Itis important to verify that the pressure in the water supply network is adequate to fill the installation 5 3 Draining Units are equipped with couplings to fill and drain the hydraulic circuit according to standards in force The water should come from a distribution network either to the unit directly or to any other point on the circuit linking the terminal units together 5 4 Terminal insulation In order to proper keep power consumption lox and to comply wit
5. OFF Prg y 13
6. 6 2011 vath Pressj wv i COOL TEMP i MAIN MENU A Lud Press 49 PARAMETER DERO i lt TME Prg vw DEF OUT TIMP CURVE DEF TIME SYSTEM SAVE Esc 4 Next page Pressj a FI Y ashing Flashing COOL TEMP 12i COOL TEMP HEAT TEMP 40i HEAT TEMP DEF CYC 45M D Pressj i DEF CYC DEF IN 7i DEFN DEF OUT 13 Prg w i DEF TIME 8M Ww SYSTEM 4 Ori i SAVE ves Esc Press Ese to save settingy COOL TEMP 15i MAIN MENU A HEAT TEMP 40i OA PARAMETER Press Es joercve 45m TIME Prg y 4 pEFOUT 13 Prg w TIMP CURVE back to the SYSTEM a Esc 4 former SAVE Yes Esc 4 interface 15 6 Usage MAIN MENU A PARAMETER TIME Prg w TIMP CURVE Esc 2 State In ON OFF state you can find the MENU option by pressing the key Prg Pressj to menu interface Pressj if changing unit status Press j press j U of unit Heating mode Pressj Ese Status Heating Qo A back to the gt Wes Inlet water tempi former Y Outlet watertemp Prg W interface Esc 4 16 2011 Yo iYA o ito feck the unit state and i to ret amp SCback to the former interface For example STATUS Heating Qo Na Inlet water tempi Y Outlet water temp Prg v Esc 4 16 2011 Yo YA
7. Chiller 300 ssesssesssss 12 6 3Appearance amp terminal meaning of PROTECT 300 sssssuss 13 7 ELECTRICITY 7 1 The displaying of the wire controller 7 2 How to use wire controller T 3howto choose mode erue eR Rer Rx RE RR anin nak nEn DE 7 4 how to know the current status 0c cece eee e nennen 15 7 5The unit s operation data ssssssssssssee eee 16 8 Maintenance 2 00 occ cece cece cece I IH ene eme ene eese hse ken TE N enn 17 1 Safety precautions 8 Maintenance TAKE CARE Before proceeding with any intervention on the machine you must be sure that the electrical supply is switched off ELECTRICAL POWER MUST BE SWITCHED OFF BEFORE STARTING ANY WORK ON JUNCTION BOXES Servicing and maintaining the units must be carried out by qualified refrigeration technicians The aim of this manual is to provide instructions for installation commissioning operation Repeated triggering of safety and control devices must be thoroughly investigated and corrected before any further re occurrence The simplicity of the cooling circuit isolates it from any problem that might occur during operation Thus no work on the cooling circuit is required providing that the WARNING Take care The installation commissioning and maintenance of these machines should be performed by qualified personnel having a The unit should be handled using lifting and handling equipment app
8. F the unit When the unit is off press the keyj Qi then the unit is turned on and vice versa Mode STATUS Standby A Press Q STATUS Cooling l Tous Inlet water tempi Ys Inlet water tempi y Outlet water tempi Prg wv Y Outlet water tempi 4 16 2011 Y amp r Esc q Pressj Qi 16 2011 TA Standby interface 6 2 2MAIN MENU 1 MODE SELECT you can find the MENU option by pressing the key OFF state In ON Prg Pressi eihen p ress to go to menu interfacej Now you can select the operation mode for the unit by pressing for mode select interface j Press i E8 ce to save your setting and twice for returning back to the former interface the AUX HEATING mode is invalid he at If the unit systemis without electrical t be changed COOL or HEAT mode can heat only or electrical If the unit system is cool Running interface Cooling mode ii STATUS Cooling Press P MAINMENU A Press FIOS PARAMETER TIME Prg w TIMP CURVE pris Inlet water tempi Ys Outlet water tempi Esc 4 16 2011 Vora ICOOL HEAT COOL 3 MODE SELECT OA AUX HEATING OFF ressj UNIT STATUS 4 Prg y Esc 4 ICOOL HEAT neat A Press Ese MODE SELECT OA Pressj Esq ow back to the UNIT STATUS back to the former former Esc q interface Esc 4 interface AUX HEATING
9. STEM PROTECT tailte Check the power supply connection TEMP DIFFERENCE Outlet water Check the flow volume to see ERROR temperature is too low whether it meets the requirements FROSTING COMMUNICATION Communication failure Check the wire connection between FAILURE between remote wire remote wire controller and main board controller and main board 8 2 You can judge and remove the malfunctions according to the malfunction code display on the PROTECT 300 Recover r Display Name Reason Action rores z Refrigerant temp too Unit stops 3 f Refrigerant freezing low from tube outlet and alarm Yes Reduce refrigerant i Unit stops E Refrgerantieakage fupeinicttosiow andalarm Yes Increase refrigerant Low pressure Unit stops Check through the pressure g Low pressure switch action and alarm Yes switch and return system Compressor exhaust Compressor exhaust Unit stops Check through the refrigerant temp too high temp too high and alarm Yes system G Over current Current through Unit stops Check through the power supply on compressor compressor too heavy and alarm Yes for compressor or short circuit B High High pressure Unit stops Check through the pressure Ig pressure switch action and alarm Yes switch and return system 7 Temp sensor before Temp Sensor open Unit stops tube failure or short circuit and alarm Yes Check and renew the sensor Tube outlet temp Temp Sensor open Unit stops B sensor failure or short c
10. TUS Standby Oa MAIN MENU OA Press Es PARAMETER Y Bullcl wet iibi Prg y amp TIME Prg w backtothe TIMP CURVE or 16 2011 Yo YA Esc 4 former interface 18 4 Installation WARNING The grille is intended to protect operators from risks of injury from the exchanger during handling and installation operations However it can create a risk of clogging with frost or ice on heat pump machines installed in cold or mountainous regions and exposed to the elements To avoid such a risk a shelter must be provided or the protective grille can simply be removed 5 Hydraulic connections 5 1 Hydraulic connection In choosing and installing water pipes current local safety rules and precautions must be consulting and respected Recommendations The pipe circuits must be designed with a minimum of bends and by reducing as far as possible the number of changes in height in order to provide the best cost installation and guarantee the best performance The pipe network must include 1 A device to eliminate vibrations e g connecting hoses on all pipes connected to the unit in order to reduce vibration and noise transmission to the building 2 Stop cocks to isolate the hydraulic circuit during maintenance 3 Automatic or manual bleed valves at the highest points on the chilled water circuit 4 An adequate system to maintain water pressure in the circuit expansion tank or pressure regu
11. e arrows show the direction of air circulation through the unit refer to diagram opposite 4 2 Fitting the unit After installation all sides of the unit must be accessible for regular maintenance operations Removal of Panel 1 provides access to the electrical junction box the compressor and the cooling circuit Note Panel 1 is removable independently of the other panels and enables the unit to be run maintaining its normal operating characteristics To disengage the panel after removal extract the controller and its support bracket When siting the unit take care to leave sufficient free space all around it for carrying out maintenance The minimum free distances are shown and must be adhered to both for ensuring correction operation and for providing access 500mm 500mm 400mm 4 400mm 800mm 4 n l aos lt i j i 200mm 6 6 Usage 6 2 6 Keyboard locking To avoid any faulty operations by others please lock the keyboard after finishing settings In the ON OFF state pressj amp il the screen shows the keylock symbol as blow Under such condition you cannot change any settings on the unit In the locking state press j i till the keylock symbol dismissed and now you can make any modifications to the unit by pressing the key board Keylock symbol STATUS Standby 4 Oa andy A REUS Inlet water tempi Long press Y Outlet water tempi Prg y Aoo l Y Outlet water t
12. empi Prg wv STATUS Standby Ys Inlet water tempi 16 1 2011 sm ESC Ge f l 16 2011_ Ye Esc e Xs Note When the keyboard is locked before power supply is cut the keyboard will be unlocked automatically as you reset the unit when itis power on 2 7 Malfunction If there is something wrong with the unit the system will display malfunction code according to the fault reasons Refer to malfunction table for any code meanings ALARM Oa WATER IN Prg y A Esc 4 There is something wrong with the temperature sensor of inlet water 19 6 Usage 6 2 5 TEMP CURVE You can check temperature curves of water inlet water outlet coil 1 coil 2 coil 3 and coil 4 At main interface press j Prgo enter menu interface then press i j to Ac this interface Choose parameters and press ji i Select TEMP CURVE and i to check it sc STATUS Standby Qo A MAIN MENU A Press Prg PARAMETER res nlet water temp p Outlet water temp Prg W TIME Prg Y TIMP CURVE D 46 2011 ve Esc 4 Esc q Pressi V i OA MAINMENU A Press 49 PARAMETER Prg yw _ TIME Prg v TIMP CURVE Esc 4 Esc 4 OUTTEMP 255i A Pressj Ese OA Brg gt P y back to the owe Esc former Esc 4 interface Press ESQback to the former interface y STA
13. er to prevent the ingress of impurities which could clog the evaporator EXPANSION The Manufacturer s warranty will not apply if the installation The capillary expansion device requires no specific maintenance recommendations listed in this manual are not followed PUMP The pump requires no specific maintenance 2 23 7 1 0 Port 6 2 Connection of PCB illustration LTEALEUL EU LLLI LI LJ a A 2 oW 2 Y a T R N PROTECT OUTW INW HIGH GND ow __ GND INW CMP J HiGH __ G6ND L ow __ GND L svs __ GND L v L stcr LL 6ND O Connections explanation No Ls imone ono anseres Cx owe one enses pacienten s meno nene remonen CMP1 Exhausting temp Of compressor1 OUTW1 Tube temp Of system 1 INW1 Tube temp Of system 1 m Te np OF and 22 2 Description 2 1 DIMENSIONS Models HH8 Front view Top view 1115 Electric wire hole Water outlet 1 inch Water inlet g 1 inch lt Pressure gauge Drainage aK 172 inch 2 Description 2 2 INSPECTION AND STORAGE On receiving the equipment all the elements should be checked with the packing list to ensure that no items are missing All units should be carefully inspected on receipt for any possible damage In the event of shipping damage inform the shipping company and lodge a complaint by registered
14. evaporator before starting the unit It acts both in the event of partial blockage starting to take in ice and in the event of a drop in water flow due to pump failure This is the machine s main protection device 5 7 Hydraulic module The hydraulic module requires no special maintenance Fitting a mesh filter accessory on the unit inlet is strongly advised referto 5 1 Comment Ensure that all of the various components are protected against freezing caused by the outside temperature In the event of any accidental power failure ensure that account is taken of ice protection requirements WARNING In all air conditioning installations with chilled water distribution the entire network must be dimensioned to provide a volume of 15 litres per kW of installed capacity 10 6 Usage 6 2 3 Parameter setting In OFF state you could enter into the option selection interface by pressing the key Prg i Press Wto find out the Parameter option then pressi t go to parameter setting Choose the value you want to change by pressing the key j and the number stands for the value will be flashing Modify the value by using the key A increase ori Wdecrease Press j jonce toE8G your setting and twice for returning back to the former interface For example STATUS Standby Oa P MAIN MENU OA Tis Inlet water tempi LM PARAMETER Outlet water tempi Prg W TIME Prg vy TIMP CURVE Esc 4 Esc 4 1
15. g to the table below 7 Unit Model HH8 Parameter Meaning Default Remarks kW 74 7 Cooling Capacity 0 COOL TEMP Set value for cooling BE Adjusted Btu h 24200 HEAT TEMP Set value for heating tio Adjusted Heating Capacity t aa u 2 DEF CYC Turnround of dehumidifying MINES Adjusted Cooling Power Input kW 25 under heating mode frost Heating Power Input kW 2 0 DEF IN Defrosting start temperature Vo Adjusted Running Current Cooling Heating A 10 9 8 7 Power Supply 230V 50Hz 4 DEF OUT Terms of exit defrost TEN Adjusted Compressor Quantity 1 under heating model Compressor Rotary 5 DEF TIME Time of exit defrost MINA Adjusted Fan Quantity 1 under heating mode Fan Power Input Ww 120 6 SYSTEM System quantity MY Adjusted Fan rotate speed RPM 850 z x 7 Noise dB A 56 SAVE Automatic restarting NO YES Adjusted Water Pump input zm 03 8 TYPE Model cooling only heat pump r Water head m 8 auxiliary electrical heating hot water C H Adjusted Water Connection inch 1 9 PUMP Water pump model NORMAL Adjusted a a Volum meh 1A Water Pressure Drop kPa 17 Capacity Of Water Storage L 23 22 2 Unit Net Dimensions L W H mm See the drawing of the units Note Parameter 7 i Unit Shipping Dimensions L W H mm See package label modified by the professionals Net Weight kg See nameplate Shipping Weight kg See package label
16. h standards in force all chilled water pipes must be insulated For appropriate insulation with a conductivity of 0 04 W mK a radial thickness of 25 to 30 mm is required 5 5 Starting operation The installation being finished the water circuit should be filled until the service pressure is reached which should not exceed 2 5 bar Check that the air purge valves are open Air in the circuit should be completely expelled for proper operation Once the hydraulic circuit is correctly filled the filling valve should be closed 5 Hydraulic connections WARNING Itis not the manufacturerjs policy to issue recommendations relating to water treatment The user or the owner is responsible for contacting a specialised water treatment enterprise However water treatment is a very critical subject and special consideration should be given to it to ensure that water treatment is properly carried out to avoid problems linking to fluid circulation A clogged hydraulic circuit will systematically lead to premature wear in the machinejs components WARNING Take care not to damage the hydraulic connections by over tightening A second wrench is required to compensate for tightening torque The use of a counter wrench is necessary for tightening the valves 5 6 Safety differential pressostat A safety differential pressostat is fitted as standard on the water inlet pipe into the evaporator in order to ensure adequate water flow to the
17. ircuit and alarm Yes Check and renew the sensor g Exhaust temp Temp Sensor open Unit stops sensor failure or short circuit and alarm Yes Check and renew the sensor Power supply Wrong connection Unit stops E wrong connection or lack of connection and alarm Yes Check the connections Contents Pages 1 SAFETY PRECAUTIONS lUe uL E 2 2 DESCRIPTION 2 JM DIMENSION Streit ertt union te daaw ees nep EE ME REEEM Ed Ed uen enn 3 2 2 nspector and storage o ree teta eec tru oed iere rns edad 4 2 3 Handling the unit 3 TECHNICAL DATA 3 1 Electrical specifications 2 0 0 0 cc cece ence ec eee ee cece ee eeeeeeeee teeeeeeeeeaneees 5 4 INSTALLATION 4 1 Installation location sss 6 4 2 Fitting the unit Lehm LETT 6 5 HYDRAULIC CONNECTIONS 5 1 Hydraulic connections 1 cece M meme 6 5 2 Connection of the chilled water loop 0 0ceceeeececeeeeeeeeeeeeeeeeeees 9 5 3 Drainning ar 9 5 4 Treminal insulation 9 5 5 Starting operation 2 2 cc cece cece cece ee ee eee eee Ea e TRIER aT REEK 9 5 6 Saffety differencial pressostat sssssssssse rene nnn 10 5 7 Hydraulic mod ule recorrer nat days eet re de DR RETE ENTE ERES 10 6 ELECTRICAL CONNECTION 6 1 Electrical connection orte tiere Ease aeo ee REI EEEE EA 11 6 2 Appearance amp terminal meaning of
18. lating valve 5 Thermometers and pressure gauges installed on the exchanger inlet and outlet They will facilitate regular checks and maintenance 6 To avoid any risk of foreign bodies entering the system and to maintain optimum performance it is strongly advised to install the water filter accessory on the machinejs inlet WARNING The evaporator is equipped with a heating mattress automatically controlled by the main controller to prevent any ice intake during periods of low outside temperature When the unit is not running in the winter it is necessary to leave the power supply connected for this protection system to function The water filter stop cock assembly is to be connected to the machine inlet taking care to keep the water filter mesh towards the bottom 6 Usage Flashing Flashing 25 04 2011 25 04 2012 16 02 i 16 02 A v 08 00 wv 08 00 TIMER OFF v 22 30 j TIMER OFF v 22 30 Prg w Esc 4 MAINMENU QA GLOCK 102 PARAMETER Press Esp MENS DER TIME Prg vw Prg w TIMP CURVE NA ETE Sn former interface Press E8 pack to Means that the unit turns the former interface on at 22 00 automatically Means that the unit shuts STATUS Standby Oa down at 23 00 automatically i Inlet water tempi Wes Outlet water temp Prg y 162034 Esc Note When thereisa shows in Time on and Time off op
19. letter with acknowledgement of receipt The manufacturer is not liable for physical damage to the unit after acceptance WARNING The sharp edges and surfaces of the coils can cause injury Avoid contact with them 2 3 HANDLING THE UNIT Take care to avoid any sharp movements during the unloading and moving of the unit Do not push or pull it by any other means than its base Place a safety wedge between the unit base and the fork lift truck to avoid damaging the unit s structure and casing Wedge required along the entire length of the unit 7 1 0 Port 7 1 Connection of PCB illustration HEAT PUMP FAN YVAL VAL L AC N AC N AC YCOMP _ O I COMP _ A N C t r re m L SENSOR C KYOUT E mDOUT LL GND C NET LL GND Civ L KYIN LL MDIN LL GND LL WATER L GND LL FROST LL GND Ld svs C GND L 1v E iInwt LLL SENSOR C outwt LL SENSOR C PIPE PiPE Connections explanation Auxiliary electrical heating 220VAC Fan motor 220VAC 6 COMP2 Compressorofsystem2 220VAC 8 ACL Po ACN Neutrals 11 MDoUTGND Mode Ambient temp input Temp Of fan coil2 input Temp Of fan coil11 input Water out temp output Water in temp output 21 L SENSOR L RooMT LL SENSOR 6 Usage 3 Technical data 6 3 Parametentabie 3 1 ELECTRICAL SPECIFICATION Please set the parameters accordin
20. lly and completely drained of water Take care When the unit is being connected ensure that no impurities are introduced into the pipe supplied work and the water circuits FAN BEARINGS Take care The fan bearings are of thejgreased for lifejtype These bearings require no WARNING greasing However check every 6 months that there is no abnormal wear on these Amesh filter must be provided on the hydraulic pump and in exchanger water inlets moving parts The unit must be EARTHED to avoid any risks caused by insulation defects ELECTRICAL TERMINALS WARNING However check the screw terminal block every 6 months No wiring must come in contact with the heat source or the fan rotating parts CONDENSER COILS The condenser coils do not require any special maintenance except when they are clogged by paper or any other foreign bodies In corrosive atmospheres provide for suitable protection Cleaning is by washing with detergent and water at low pressure and then rinsing with clean water WARNING Preparation for shutting down the unit for a prolonged period if the installation does not contain glycol the evaporator and the chilled water pipes need to be carefully and completely drained of water EVAPORATOR The direct expansion evaporator comprises a tube in tube exchanger These evaporators require no specific maintenance but a mesh filter mesh 1 mm must be fitted on the evaporator chilled water inlet in ord
21. racket W Thread the power supply cable through the cable guide provided on the unit WARNING On site wiring must be carried out in accordance with the wiring diagram affixed to the unit s junction box The power cables for general power supply to the unit must have a copper core and be dimensioned in accordance with current IEC standards The unit must be earthed via a terminal block provided inside the junction box The supply voltage must not vary by more than 10 Imbalance between the phases must not be greater than 3 All the connections are made on screw terminals The wires should be stripped back 10 mm E Power supply 11 6 Usage 6 1 Function of wire controller a N AIR COOLED WATER CHILLER Prg wv HEAT PUMPCONTROL Esc Key Key name Key function ON OFF Press this key to turn on or turn off the unit In ON OFFstate press this key to enter into menu Menu interface Function Enter next interface Function Y Change parameter value The number stands for the value will be flashing if it is changeable Press this key to select the upward option or increase the parameter value Press this key to select the downward option or decrease the parameter value Function Return to the former interface Function Y Save the settings when they are finished 12 6 Usage 6 2 Usage of wire controller 6 2 1 Turn ON OF
22. ropriate to the unit s size and weight unit operates satisfactorily However it is advisable to carry out a certain number of preventive operations in order to maintain the unit in optimum working order good knowledge of standards and local regulations as well as experience of this type of equipment Take care Itis forbidden to start any work on the electrical components without switching off the electrical supply to the unit These operations essentially consist of standard checks checking operating temperature settings checking voltages and currents checking water flow and temperatures etc and should be carried out every 6 months and after the unit has been out of service for prolonged period during the winter WARNING Any wiring produced on site must comply with local electrical regulations Take care Itis forbidden to start any work on the electrical components if water or high humidity is present on the installation site PREPARATION FOR SHUTTING DOWN THE UNIT FOR A PROLONGED PERIOD WARNING Ensure that the electrical supply corresponds to the specification indicated on the unit s maker s plate before proceeding with the connection in accordance with the wiring diagram The following recommendations should be taken intoconsideration After stopping the compressor stop the circulation pump If the installation does not contain glycol the evaporator and the chilled water pipes need to be carefu
23. tion as shown above it means that the unit will not turn on or shut down automatically When there is a clock icon shown as blow it means that the timer restart or shutdown is set STATUS Standby Qo A ti Inlet water temp y Outlet water temp Prg W 16 5 2004 4 Esc 4 The unit will turns on or shuts down automatically 17 6 Usage 6 2 4 Time setting press OFF state In the ON Press and you will see the Timer option choose the Timer option i down Press to choose they value that you need tq modify er is flaggipgi o save the setting i e to enter into the time setting interface jPress e d the target numb i increase orj r Status Standby Way Inlet water tempi Y Outlet water tempi 16 2011 Yo Y Oa Prg y Esc 4 Press Prg TIME 24 03 2011 16 02 v 08 00 TIMER OFF v 22 30 OA Prg vw Esc 4 Pressj t ce DATE 24 03 2011 CLOCK 16 02 TIMER ON v 08 00 TIMER OFF v 22 30 OA Prg w Esc 4 D Pressj A Flashing 25 04 2011 16 02 v 08 00 TIMER OFF v 22 30 Pressi s v i decgpegee Press for changing the value jto return to former interface without any modification MAIN MENU OA PARAMETER Prg y TIMP CURVE Esc R Pressj vV MAIN MENU OA PARAMETER TIME Prg w TIMP CURVE Press ef PME Esc 4 i
Download Pdf Manuals
Related Search