mundoclima MUENR-H12 Installation & Owner'S Manual Download

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CL25640 a CL25648

MUENR-H12 / MUENR-H12T

www.mundoclima.com

English

MINI CHILLER INVERTER H12

Installation & Owner's manual

and information requirements

Summary of Contents for MUENR-H12

Page 1: ...CL25640 a CL25648 MUENR H12 MUENR H12T www mundoclima com English MINI CHILLER INVERTER H12 Installation Owner s manual and information requirements ...

Page 2: ...ement 8 1 8 2 8 3 8 4 Main components Control board Water piping Filling water Water piping insulation Field wiring 9 1 9 2 9 3 9 4 9 5 9 6 Dimensions Installation requirements Drain hole position Servicing space requirements 7 1 7 2 7 3 7 4 7 02 1 SAFETY PRECAUTIONS ACCESSORIES GENERAL INTRODUCTION BEFORE INSTALLATION IMPORTANT INFORMATION FOR THE REFRIGERANT INSTALLATION SITE INSTALLATION PRECAU...

Page 3: ...5 46 12 FINAL CHECKS AND TEST RUN 44 13 MAINTENANCE AND SERVICE 14 TROUBLESHOOTING 14 1 14 2 General guidelines General symptoms 47 46 14 3 Error codes 49 51 15 TECHNICAL SPECIFICATIONS 15 1 15 2 General Electrical specifications 51 51 11 1 Setting parameters 41 16 INFORMATION SERVICING 52 ...

Page 4: ...tual product The backup heater can be customized outside the unit in accordance with demands which contains 3kW 1 phase 4 5kW 1 phase 4 5kW 3 phase 6kW 3 phase and 9kW 3 phase Please refer to the INSTALLATION OWNER S MANUAL of the backup heater for details The backup heater optional and heat pump are independently powered ...

Page 5: ...listed here are divided into the following types They are quite important so be sure to follow them carefully Meanings of DANGER WARNING CAUTION and NOTE symbols Indicates an imminently hazardous situation which if not avoided will result in death or serious injury DANGER Indicates a potentially hazardous situation which if not avoided could result in death or serious injury WARNING CAUTION Indica...

Page 6: ... fire Make sure all wiring is secure Use the specified wires and ensure that terminal connections or wires are protected from water and other adverse external forces Incomplete connection or affixing may cause a fire When wiring the power supply form the wires so that the front panel can be securely fastened If the front panel is not in place there could be overheating of the terminals electric sh...

Page 7: ... Children should not play with the unit Cleaning and user maintenance should not be done by children without supervision Children should be supervised to ensure that they do not play with the appliance If the supply cord is damaged it must be replaced by the manufaturer or its service agent or a similarly qualified person DISPOSAL Do not dispose this product as unsorted municipal waste Collection ...

Page 8: ...water Heating mode Outlet water Cooling mode Ambient temperature Water pressure 15 65 C 5 25 C 25 43 C 0 1 0 3MPa Water flow 5kW 7kW 0 40 1 25m3 h 0 40 1 65m3 h 9kW 0 40 2 10m3 h 12kW 0 70 2 50m3 h 14kW 0 70 2 75m3 h 16kW 0 70 3 00m3 h NOTE The relationship between capacity Load and ambient temperature 05 Maximum length of communication wirings between the unit and the controller is 50m Power cord...

Page 9: ...ial number of the unit Transport Due to relatively large dimensions and heavy weight the unit should only be hoised by lifting tools with slings please refer to the following picture 4 BEFORE INSTALLATION C A Model A A 1 phase 5 7 9kW B C 1 phase 12 14 16kW 3 phase 12 14 16kW 350 355 285 540 390 255 500 400 275 Installation and owner s manual this book Quantity Technical data manual Y shape filter...

Page 10: ... months or where a leakage detection system is installed at least every six months Strong winds of 5 m sec or more blowing against the unit s air outlet causes a short circuit suction of discharge air and this may have the following consequences Deterioration of the operational capacity Frequent frost acceleration in heating operation Disruption of operation due to rise of high pressure When a str...

Page 11: ...res below for installation of the unit any one is OK Turn the air outlet side toward the building s wall fence or screen Make sure there is enough space to install the unit Set the outlet side at a right angle to the direction of the wind B mm 1000 1500 Unit 5 9kW 12 16kW Prepare a water drainage channel around the foundation to drain waste water from around the unit If water does not easily drain...

Page 12: ...urely by means of foundation bolts Prepare four sets each of Φ10 Expansion bolts nuts and washers which are readily available in the market Screw in the foundation bolts until their length is 20 mm from the foundation surface 7 2 Installation requirements unit mm Concrete basement h 100mm Rubber shocking proof mat 100 80 Φ10 Expansion bolt Solid ground or roofing This drain hole is covered by rubb...

Page 13: ...Servicing space requirements 7 4 1 In case of stacked installation It s necessary to install an electrical heating belt if water can t drain out in cold weather even the big drain hole has opened NOTE A A mm 1000 1500 Unit 5 9kW 12 16kW 1 In case obstacles exist in front of the air outlet side 2 In case obstacles exist in front of the air inlet side 500mm 500mm B2 A C B1 400mm 500mm 10 400mm 500mm...

Page 14: ...ll be turned on automatically if initial water temperature is too low or target water temperature is too high at low ambient temperature P_o keeps running as long as the AHS is ON 2 When the AHS is set valid M1M2 can be set to be valid on the user interface In heating mode AHS will be turned on if MIM2 dry contact closes 10 2 Modbus 9 10 8 7 14 Space heating 11 Code 1 2 3 3 1 3 2 3 3 4 5 6 Assembl...

Page 15: ...supply 19 Collector distributor Field supply 4 1 Automatic air purge valve 4 2 Drainage valve 5 P_o Outside circulation pump Field supply RT Low voltage room thermostat Field supply 10 Expansion vessel Field supply FHL 1 n Floor heating loop Field supply 12 Filter Accessory Modbus 15 16 14 12 14 2 16 Space heating One zone control the unit ON OFF is controlled by the room thermostat operation mode...

Page 16: ...e circulation pump and valve operation 1 When the system is in cooling mode SV2 keeps OFF P_o starts running 2 When the system is in heating mode SV2 keeps ON P_o starts running 4 4 2 4 1 10 Outdoor 1 FCU1 FCUn FCU2 FHL1 FHL2 FHLn 19 19 20 5 22 M Indoor RT 2 17 15 16 14 12 14 16 Code Assembly unit Code Assembly unit 1 Main unit 2 User interface 16 4 Buffer tank Field supply 19 4 1 Automatic air pu...

Page 17: ...door Tw2 23 23 123 2 5 RAD 1 RAD 2 RAD n ZONE1 ZONE2 RT 2 Modbus 15 16 14 12 14 16 1 1 Zone1 can operate in cooling mode or heating mode while zone2 can only operate in heating mode Operation mode and water temperature are set on the user interface the unit ON OFF is controlled by the room thermostat While installing the system only H L terminals need to be connected for the thermostat in zone1 on...

Page 18: ... Filling valve Field supply P_o Outside circulation pump Field supply Expansion vessel Field supply T1 Total water flow termperature sensor Optional Filter Accessory Check valve Field supply Shut off valve Field supply Code 10 11 12 12 1 12 2 13 Assembly unit Collector distributor Field supply Bypass valve Field supply Mixing station Field supply SV3 Mixing valve Field supply Water manonmeter Fiel...

Page 19: ... mode 4 If Hd malfunction occurs please refer to 14 3 Error codes 2 2 SV2 SV3 P_O T1 TW2 Tbt AHS interface are only connected to corresponding terminals on main board of master unit Space heating All units can operate in space heating mode The operation mode and setting temperature are set on the user interface 2 Due to changes of the outdoor temperature and the required load indoors multiple outd...

Page 20: ...rcuit 5 1 TW out 5 2 Tw in 5 3 T2 5 4 T2B Detects water flow rate to protect compressor and water pump in the event of insufficient water flow Circulates water in the water circuit Transfer heat from the refrigerant to the water Prevents excessive water pressure by opening at 3 bar and discharging water from the water circuit 9 1 Main components 9 1 1 Hydraulic module 1 2 3 4 5 1 5 2 5 3 5 4 6 7 8...

Page 21: ...or room thermostat Control port for room thermostat cooling mode Port for smart grid photovoltaic signal Port for smart grid grid signal Control port for internal backup heater 1 Port for SV3 3 way valve Control port for internal backup heater 1 27 28 Port for anti freeze electric heating tape internal Port for anti freeze electric heating tape internal 29 CN21 POWER CN5 GND CN28 PUMP CN25 DEBUG C...

Page 22: ...1 15 16 17 Port for low pressure switch CN17 Port for communication with ammeter CN22 Port for 4 way valve CN36 Port for the heating tape of drainage outlet CN35 9 28 20 22 21 23 11 12 13 18 15 14 16 17 19 26 25 24 27 1 2 10 3 4 5 8 7 6 Reserved CN42 Reserved CN41 Port for crankcase heating tape CN38 Same as ITEM 12 CN45 PQE Port for communication with outdoor unit CN20 Reserved Port for point che...

Page 23: ...on with main control board CN10 Input port L for rectifier bridge CN501 Input port N for rectifier bridge CN502 Port for power supply CN13 Port for high pressure switch CN12 Reserved CN12 CN13 10 CN12 1 2 3 4 Assembly unit Assembly unit Code Code 5 6 7 8 9 10 Port for fan CN32 Compressor connection port U Compressor connection port V Compressor connection port W Port for communication with main co...

Page 24: ...bly unit Code Code 8 Power Input port L3 CN15 Power Input port L1 CN16 Power Input port L2 CN7 Input port P_in for IPM module CN1 9 10 11 13 12 Port for communication with main control board CN43 Port for voltage detection CN39 Port for communication with DC FAN CN3 PED board CN22 Port for high pressure switch CN12 Compressor connection port V CN18 Compressor connection port W CN19 Compressor conn...

Page 25: ...pply L1 CN202 Power supply N CN203 Power ﬁltering L1 CN206 Power ﬁltering L2 CN205 Power ﬁltering output L3 CN204 9 10 Port for ground wire PE1 Power supply port for main control board CN214 Port for voltage detection CN30 PCB C 3 phase 12 14 16kW PE1 CN202 CN201 CN200 CN203 CN204 CN205 CN206 CN214 CN30 3 4 5 9 8 6 7 10 2 1 ...

Page 26: ...losed water system Application in an open water circuit can lead to excessive corrosion of the water piping Example 5 4 4 2 4 1 10 FHL1 FHL2 FHLn 19 20 Indoor Outdoor 1 15 16 14 12 14 Modbus 16 2 Assembly unit Code Assembly unit Main unit 15 Shut off valve Field supply User interface accessory Filling valve Field supply Buffer tank Automatic air purge valve Field supply 19 Drainage valve Field sup...

Page 27: ...the following The units are equipped with an expansion vessel of 5L that has a default pre pressure of 1 5 bar To assure proper operation of the unit the pre pressure of the expansion vessel might need to be adjusted 1 Check that the total water volume in the installation excluding the internal water volume of the unit is at least 40L The expansion vessel volume can follow the figure below 2 Expan...

Page 28: ... the water circuit could lead to malfunction of the backup electric heater 9 4 Filling water NOTE Never use Zn coated parts in the water circuit Excessive corrosion of these parts may occur as copper piping is used in the unit s internal water circuit When using a 3 way valve in the water circuit Preferably choose a ball type 3 way valve to guarantee full separation between the domestic hot water ...

Page 29: ...f the capacitor due to high frequency waves Never install a phase advancing capacitor as it could lead to an accident The illustration below gives an overview of the required field wiring between several parts of the installation Secure the electrical wiring with cable ties as shown in figure so that it does not come in contact with the piping particularly on the high pressure side Make sure no ex...

Page 30: ... AC 2 200mA a 3 AC 200mA a 4 Outside circulation pump control cable AC 2 200mA a t i n u y l b m e s s A e d o C t i n u y l b m e s s A e d o C t i n u Main A y l p p u s d l e i f e v l a v y a w 3 2 V S H e c a f r e t n i r e s U C r o t c a t n o C K o P_d P_s 1 3 4 H 25 RT D A K CN11 CN30 1 A 2 B 3 X HA 4 Y HB 5 E 6 P 7 Q 8 E 9 H1 10 H2 1 AHS1 2 AHS2 3 4 TBH 5 6 1ON 7 1OFF 8 P_o 9 10 11 C1 1...

Page 31: ...ach the front cover securely Follow the electric wiring diagram for electrical wiring works the electric wiring diagrams are located on the rear side of door 2 Install the wires and fix the cover firmly so that the cover may be fit in properly Use the correct screwdriver to tighten the terminal screws Small screwdrivers can damage the screw head and prevent appropriate tightening Over tightening t...

Page 32: ...25 2 5 and 4 2 5 and 6 25 and 32 4 and 6 4 and 10 32 and 50 6 and 10 6 and 16 50 and 63 10 and 16 10 and 25 1 phase 5 16kW standard and 3 phase 12 16kW standard 9 6 5 Remove the switch box cover NOTE Unit 5kW 7kW 9kW 12kW 14kW 16kW 12kW 3 PH 14kW 3 PH 16kW 3 PH Maximum overcurrent protector MOP A 18 18 18 30 30 30 14 14 14 Wiring size mm 2 4 0 4 0 4 0 6 0 6 0 6 0 2 5 2 5 2 5 MCA Minimum Circuit Am...

Page 33: ...iagram 3N Master unit Slave unit 1 H1 H2 Slave unit 2 H1 H2 Slave unit x H1 H2 Build out resistor Only the last IDU requires adding the build out resistor at H1 and H2 L1 L2 L3 N Fuse L1 L2 L3 N Fuse L1 L2 L3 N Fuse L1 L2 L3 N The cascade system electrical control system connection diagram 1N ON OFF SW9 Slave unit Master unit ON OFF SW9 Slave unit Master unit X HAX HB X HAX HB 1 The cascade functi...

Page 34: ...ring terminal with the insulation casing see Figure 9 1 If circular wiring terminal with the insulation casing cannot be used please make sure that Do not connect two power cords with different diameters to the same power supply terminal may cause overheating of wires due to loose wiring See Figure 9 2 Use power cord that conforms to the specifications and connect the power cord firmly To prevent ...

Page 35: ... CN11 Control signal port of hydraulic module The CN11contains terminals for 3 way valve pump booster heater etc The parts wiring is illustrated below This part only applies to Basic For Customized cause there is an interval backup heater in the unit the hydraulic module should not be connected to any additional heat source WARNING 1 For additional heat source control AHS KM1 FUSE Power supply 7 5...

Page 36: ...tside circulation pump P_o KM3 Power supply 7 5 3 1 A1 A2 2 4 6 8 10 21 CN11 P_0 C1 a Procedure Connect the cable to the appropriate terminals as shown in the picture Fix the cable reliably Control port signal type Voltage Maximum running current A Wiring size mm2 Type 2 220 240VAC 0 2 0 75 KM6 Power supply 7 5 3 1 A1 A2 2 4 6 8 24 23 CN11 P_x C1 4 For alarm or Defrost run P_x Alarm or Defrost a P...

Page 37: ...ol 7 12 11 10 9 18 8 7 5 23 22 24 1 2 13 3 4 6 20 14 15 17 19 16 21 6 8 9 10 5 4 3 2 1 CN4 CN22 CN5 CN13 CN15 CN18 CN28 S2 CN21 S1 S3 CN11 CN17 CN30 CN25 CN29 CN42 CN6 CN8 CN32 SW9 CN24 CN36 CN35 CN31 CN38 CN37 CN23 CN33 CN27 CN64 CL COM HT CN19 The unit only sends an ON OFF signal to the heater IBH2 cannot be wired independently NOTE Control port signal type Voltage Maximum running current A Wiri...

Page 38: ...dure Connect the cable to the appropriate terminals as shown in the picture Fix the cable with cable ties to the cable tie mountings to ensure stress relief C 2 When unit detect voltage is 12VDC between CL and COM zone2 turn on according to climate temp curve When unit detect voltage is 0V between CL and COM zone2 turn off C 3 When HT COM and CL COM are detected as 0VDC unit turn off C 4 when HT C...

Page 39: ... or E0 as an error code there is a possibility that there is air in the system or the water level in the system is less than the required minimum If the error code E2 is displayed on the user interface check the wiring between the user interface and unit More error code and failure causes can be found in 14 3 Error codes 10 START UP AND CONFIGURATION The unit should be configured by the installer ...

Page 40: ...ons 10 4 2 1 Installation location Do not install the unit in a place with much oil steam sulfide gas Otherwise the product may deform and fail 10 4 2 2 Preparation before installation 1 Check whether the following assemblies are complete 1 3 2 1 2 For Mounting on the Wall Name Qty Remarks Wired Controller Installation and Owner s Manual Plastic bolt 3 For mounting on the Wall Plastic expansion pi...

Page 41: ...back cover on the 86 electrician box and use one M4X20 screws for fixing on the wall 4 Adjust the length of two plastic screw bars in the accessory to be standard length from the electrical box screw bar to the wall Make sure while installing the screw bar to the wall making it as flat as the wall 5 Use cross head screws to fix the wired controller bottom cover in the wall through the screw bar Ma...

Page 42: ...ING COOL MODE SETTING HEAT MODE SETTING AUTO MODE SETTING TEMP TYPE SETTING ROOM THERMOSTAT OTHER HEATING SOURCE HOLIDAY AWAY SETTING SERVICE CALL RESTORE FACTORY SETTINGS TEST RUN SPECIAL FUNCTION AUTO RESTART POWER INPUT LIMITATION INPUT DEFINE CASCADE SET HMI ADDRESS SET COMMON SET OPERATION PARAMETER SCHEDULE TIMER WEEKLY SCHEDULE SCHEDULE CHECK CANCEL TIMER OPERATION MODE HEAT COOL AUTO PRESE...

Page 43: ...O RESTART 13 1 COOL HEAT MODE 3 HEAT MODE SETTING 3 1 HEAT MODE 3 2 t_T4_FRESH_H 3 3 T4HMAX 3 4 T4HMIN 3 5 dT1SH 3 6 dTSH 3 7 t_INTERVAL_H 3 8 T1SetH1 3 9 T1SetH2 3 10 T4H1 3 11 T4H2 3 12 ZONE1 H EMISSION 3 13 ZONE2 H EMISSION 3 14 FORCE DEFROST 10 RESTORE FACTORY SETTINGS 14 POWER INPUT LIMITATION 14 1 POWER INPUT LIMITATION 15 INPUT DEFINE 15 1 M1M2 15 2 SMART GRID 15 3 T1T2 15 4 Tbt 15 5 P_X PO...

Page 44: ... mode 7 ZONE1 H EMISSION 1 ZONE2 H EMISSION 2 FORCE DEFROST 0 T4AUTOCMIN The minimum operating ambient temperature for cooling in auto mode 25 T4AUTOHMAX The maximum operating ambient temperature for heating in auto mode 17 WATER FLOW TEMP Enable or disable the WATER FLOW TEMP 0 NON 1 YES 1 ROOM TEMP Enable or disable the ROOM TEMP 0 NON 1 YES 0 DOUBLE ZONE Enable or disable the ROOM THERMOSTAT DO...

Page 45: ...d IBH LOCATE The installation location of IBH PIPE LOOP 0 0 dT1_IBH_ON 5 P_IBH2 Power input of IBH2 0 AHS FUNCTION 0 AHS_PUMPI CONTROL 0 dT1_AHS_ON 5 30 T4_IBH_ON 5 P_IBH1 Power input of IBH1 0 t_AHS_DELAY The time that the compressor has run before starting the additional heating source 30 T4_AHS_ON 5 EnSWITCHPDC 0 ROOM THERMOSTAT 0 7 1 7 2 7 3 7 7 7 8 7 9 7 10 7 4 7 5 7 6 7 11 7 12 7 13 6 1 6 2 ...

Page 46: ...t1_ANTILOCK SV The valve anti lock interval time t2_ANTILOCK SV RUN The valve anti lock running time Ta_adj The corrected value of Ta inside wired controller F PIPE LENGTH Select the total length of the liquid pipe F PIPE LENGTH 0 F PIPE LENGTH 10m 1 F PIPE LENGTH 10m PUMP_I SILENT OUTPUT The pump_I max output limitation 2 24 60 24 30 2 0 100 min h s h s C START DATE The start date of floor drying...

Page 47: ... water and air is expelled otherwise the pump or backup heater optional may be broken CAUTION OK ENTER 11 TEST RUN 11 1 POINT CHECK 11 2 AIR PURGE 11 3 CIRCULATED PUMP RUNNING 11 4 COOL MODE RUNNING 11 5 HEAT MODE RUNNING When circulation pump running is turned on all running components will stop 60 seconds later the SV2 will be on 60 seconds later PUMPI will operate 30s later if the flow switch c...

Page 48: ... THE TEST RUN AIR PURGE FUNCTION NO YES 11 TEST RUN AIR PURGE CONFIRM AIR PURGE PUMPI OUTPUT 70 AIR PURGE RUNNING TIME 20min ENTER EXIT 11 TEST RUN AIR PURGE AIR PURGE PUMPI OUTPUT 70 AIR PURGE RUNNING TIME 20min BACK Press to adjust the parameters click ENTER to send the setting parameters the following pages will be displayed AIR PURGE WATER FLOWRATE AIR PURGE WATER PRESSURE bar CONFIRM Press BA...

Page 49: ... removing product for 24 hours Unit switch box Carry out a thorough visual inspection of the switch box and look for obvious defects such as loose connections or defective wiring Check for correct operation of contactors with an ohm meter All contacts of these contactors must be in open position Use of glycol Refer to 9 3 4 Water circuit anti freeze protection Document the glycol concentration and...

Page 50: ...leaks POSSIBLE CAUSES CORRECTIVE ACTION Dirt is blocking the water pressure relief valve outlet Check for correct operation of the pressure relief valve by turning the black knob on the valve counter clockwise If you do not hear a clacking sound contact your local dealer In case the water keeps running out of the unit close both the water inlet and outlet shut off valves first and then contact you...

Page 51: ...IVE ACTION Backup heater operation is not activated Check if that the OTHER HEATING SOURCE IBH FUNCTION is enabled Check whether or not the thermal protector of the backup heater has been activated Check if booster heater is running the backup heater and booster heater can t operate simultaneously ...

Page 52: ...ow 7 Solar temp sensor Tsolar malfunction Buffer tank upper temp sensor Tbt malfunction The DC fan malfunction Pressure sensor malfunction Low pressure protection in cooling mode 10 times H6 in 2 hours Inverter module board EE prom malfunction Low pressure switch protection Compressor overcurrent protection High pressure switch protection Phase loss or neutral wire and live wire are connected reve...

Page 53: ... not repaired in time the water pump and pipeline systerm may be damaged by freezing so E0 and Hb malfunction must be repaired in time UPPER UNIT DISPLAY No 33 65 116 134 136 138 139 121 High temperature protection of inverter module 135 DC bus low voltage protection 141 137 106 Inverter or compressor protection Current sampling error of PFC circuit Rotating stall protection EXV1 fault T4 sensor o...

Page 54: ...acity Dimensions HxWxD Net weight Gross weight Water inlet outlet Water drain Volume Maximum working pressure MWP Type Pressure relief valve water circuit Heating Cooling Heating Cooling 5L 8 bar 1 phase 5 7 9 kW 865 1040 410mm 87kg 103kg G1 BSP Hose nipple Water cooled 3 bar 15 65 C 5 25 C 25 35 C 5 43 C 1 phase 12 14 16 kW 865 1040 410mm 106kg 122kg G5 4 BSP Water cooled 3 phase 12 14 16 kW 865 ...

Page 55: ... shall be displayed 7 Ventilated area Ensure that the area is in the open or that it it adequately ventilated before breaking into the system or conducting any hot work A degree of ventilation shall continue during the period that the work is carried out The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere 8 Checks to the refrigerat...

Page 56: ...t flammable refrigerants but the sensitivity may not be adequate or may need re calibration Detection equipment shall be calibrated in a refrigerant free area Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed and th...

Page 57: ...n accordance with the manufacturer s instructions Storage of packed unsold equipment Storage package protection should be constructed such that mechanical damage to the equipment inside the package will not cause a leak of the refrigerant charge The maximum number of pieces of equipment permitted to be stored together will be determined by local regulations 17 Decommissioning Before carrying out t...

Page 58: ...4 way valve 17 Suction temperature sensor 5 Ambient temperature sensor 18 Low pressure switch 6 Air side heat exchanger 19 Outlet water temperature sensor 7 DC_FAN 20 Inlet water temperature sensor 8 Air side heat exchanger temperature sensor 21 Expansion vessel Water pump 10 Capillary 23 Pressure relief valve 11 Electronic expansion valve 24 Automatic air purge valve 12 Liquid refrigerant tempera...

Page 59: ...ent Connect the heating tape wire at the drainage outlet to the wire joint XT3 The picture is for reference only please refer to the actual product The power of the E heating tape shall not exceed 40W 200mA supply voltage 230VAC XT3 To the heating tape of drainage outlet ...

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