Midea M-thermal Mono Series Installation And Owner's Manual
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Midea M-thermal Mono Series Installation And Owner's Manual

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INSTALLATION
AND OWNER'S MANUAL
M-thermal Mono
ATW Heat Pump
IMPORTANT NOTE:
Thank you very much for purchasing our product,
Before using your unit , please read this manual carefully and keep it for future reference.

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  • Page 1 INSTALLATION AND OWNER’S MANUAL M-thermal Mono ATW Heat Pump IMPORTANT NOTE: Thank you very much for purchasing our product, Before using your unit , please read this manual carefully and keep it for future reference.
  • Page 2 CONTENTS SAFETY PRECAUTIONS GENERAL INTRODUCTION ACCESSORIES Accessories supplied with the unit BEFORE INSTALLATION IMPORTANT INFORMATION FOR THE REFRIGERANT INSTALLATION SITE Selecting a location in cold climates Selecting a location in hot climates INSTALLATION PRECAUTIONS Dimensions Installation requirements Drain hole position Servicing space requirements TYPICAL APPLICATIONS Application 1...
  • Page 3 Initial start-up at low outdoor ambient temperature 10.3 Pre-operation checks 10.4 The circulation pump 10.5 Field settings 10.6 TEST RUN AND FINAL CHECKS 11.1 Final checks Test run operation (manually) 11.2 MAINTENANCE AND SERVICE TROUBLE SHOOTING General guidelines 13.1 General symptoms 13.2 13.3 Operation parameter...
  • Page 4 4/6 kW 8/10/12/14/16 kW Internal layout:12~16kW(3-phase) for example Electric Control System 4/6 kW Terminal Block Hydraulic System Refrigerant System 8/10/12/14/16 kW Please remove the hollow plate after installation. Remove the transportation support 12/14/16 kW NOTE The picture and function described in this manual contain the backup heater components. 1-phase 3-phase Unit...
  • Page 5 1 SAFETY PRECAUTIONS The precautions 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. INFORMATION Read these instructions carefully before installation. Keep this manual in a handy for future peference. Improper installation of equipment or accessories may result in electric shock, short-circuit, leakage, fire or other damage to the equipment.
  • Page 6 DANGER Before touching electric terminal parts, turn off power switch. When service panels are removed, live parts can be easily touched by accident. Never leave the unit unattended during installation or servicing when the service panel is removed. Do not touch water pipes during and immediately after operation as the pipes may be hot and could burn your hands.
  • Page 7 Do not install the unit in the following places: - Where there is mist of mineral oil, oil spray or vapors. Plastic parts may deteriorate, and cause them to come loose or water to leak. - Where corrosive gases (such as sulphurous acid gas) are produced. Where corrosion of copper pipes or soldered parts may cause refrigerant to leak.
  • Page 8 2 GENERAL INTRODUCTION These units are used for both heating and cooling applications and domestic hot water tanks.They can be combined with fan coil units, floor heating applications, low temperature high efficiency radiators, domestic hot water tanks and solar kits, which are all field supplied.
  • Page 9 In cooling mode, the water temperature flowing 3 ACCESSORIES (TW_out) range in different outdoor temperature(T4) is listed below: 3.1 Accessories supplied with the unit Installation Fittings Quantity Name Shape Installation and owner’s manual(this book) Operation manual Operation range by heat pump with possible limitation and protection. Technical data manual In heating mode, the water flowing temperature (TW_out) range in different outdoor temperature (T4) is...
  • Page 10 CAUTION To avoid injury, do not touch the air inlet or aluminum fins of the unit. Do not use the grips in the fan grills to avoid damage. The unit is top heavy! Prevent the unit from falling due to improper inclination during handling. ≥1000mm The hook and barycenter of the unit should be on a line...
  • Page 11 CAUTION Frequency of Refrigerant Leakage Checks - For unit that contains fluorinated greenhouse gases in quantities of 5 tonnes of CO equivalent or more,but of less than 50 tonnes of CO equivalent,at least every 12 months, or where a leakage detection system is installed, at least every 24 months.
  • Page 12 If you install the unit on a building frame, please install a waterproof tray (field supply) (about 100mm, on the underside of the unit) in order to avoid drain water dripping. (See the picture in the right). A(mm) Unit 4~6kW ≥300 8~16kW ≥300...
  • Page 13 7 INSTALLATION PRECAUTIONS 7.1 Dimensions 8/10/12/14/16 kW (unit: mm) 4/6 kW (unit: mm) Model 4/6kW 1295 8/10/12/14/16kW 1385 7.2 Installation requirements Check the strength and level of the installation ground so that the unit may not cause any vibrations or noise during its operation.
  • Page 14 7.3 Drain hole position Drain hole Drain hole 4/6 kW This drain hole is covered by rubber plug. If the small drain hole can not meet the drainage requirements, the big drain hole can be used at the same time. 8/10/12/14/16 kW NOTE It's necessary to install an electrical heating belt if water can't drain out in cold weather even the big drain hole has...
  • Page 15 7.4.2 In case of multiple-row installation (for roof top use, etc.) In case of installing multiple units in lateral connection per row. ≥500mm ≥500mm ＜1/2 H A(mm) B1(mm) B2(mm) C(mm) Unit 4~6kW ≥2500 ≥1000 ≥300 ≥600 8~16kW ≥3000 ≥1500...
  • Page 16 8 TYPICAL APPLICATIONS The application examples given below are for illustration only. 8.1 Application 1 Indoor Outdoor FHL1 FHL2 FHLn 11.2 Modbus 11.1 11.3 Code Assembly unit Code Assembly unit Main unit Domestic hot water tank (Field supply) User interface 11.1 TBH: Domestic hot water tank booster heater (Field supply)
  • Page 17 Space heating The ON/OFF signal and operation mode and temperature setting are set on the user interface. P_o keeps running as long as the unit is ON for space heating, SV1 keeps OFF. Domestic water heating The ON/OFF signal and target tank water temperature (T5S) are set on the user interface. P_o stops running as long as the unit is ON for domestic water heating, SV1 keeps ON.
  • Page 18 8.2 Application 2 ROOM THERMOSTAT Control for Space heating or cooling need to be set on the user interface. It can be set in three ways: MODE SET/ONE ZONE/DOUBLE ZONE. The molobloc can be connected to a high voltage room thermostat and a low voltage room thermostat.
  • Page 19 8.2.2 Mode set control Indoor Outdoor FCU1 FCU2 FCUn FHL1 FHL2 FHLn Coding Assembly unit Coding Assembly unit Main unit Drainage valve (Field supply) User interface Collector/distributor Balance tank (Field supply ) Bypass valve (Field supply) (Field supply) Automatic air purge valve Hydraulic adapter box Drainage valve SV2: 3 - way valve (Field supply）...
  • Page 20 8.2.3 Double zone control Indoor Outdoor RAD.1 ZONE1 RAD.2 RAD.n ZONE2 23.1 23.2 Modbus FHL1 FHL2 FHLn Coding Assembly unit Coding Assembly unit Main unit Collector/distributor (Field supply) User interface Hydraulic adapter box (Optional) Balance tank (Field supply) Mixing station (Field supply) Automatic bleed valve SV3: Mixing valve (Field supply) 23.1...
  • Page 21 The floor heating loops require a lower water temperature in heating mode compared to radiators. To achieve these two set points, a mixing station is used to adapt the water temperature according to requirements of the floor heating loops. The radiators are directly connected to the unit water circuit and the floor heating loops are after the mixing station.
  • Page 22 9.2 Main components 9.2.1 Hydraulic module 4/6 kW with backup heater(optional) 4/6 kW without backup heater 8~16 kW without backup heater 8~16 kW with backup heater(optional) Coding Assembly unit Explaination Remaining air in the water circuit will be automatically removes Air purge valve air from the water circuit.
  • Page 23 9.3 Electronic control box Inverter module control board(PCB A) Main control board Main control board of hydraulic module of heat pump sysem(PCB B) 4/6kW Inverter module control board(PCB A) Main control board Main control board of hydraulic module of heat pump sysem(PCB B) 8/10kW Note:The picture is for reference only, please refer to the actual product.
  • Page 24 Main control board of hydraulic module Inverter module control board(PCB A) Main control board of heat pump sysem(PCB B) 12/14/16kW(1-phase) Main control board of hydraulic module Inverter module control board(PCB A) Main control board of heat pump sysem(PCB B) Filter board(PCB C)(at back of the PCB B,only for 3 phase unit) 12/14/16kW(3-phase) 9.3.1 Main control board of hydraulic module...
  • Page 25 CN24 CN28 CN16 CN21 CN13 CN15 CN29 CN18 CN25 CN42 CN40 DIS1 CN31 CN41 CN22 CN35 CN36 CN17 CN11 CN30 Order Port Code Assembly unit Order Port Code Assembly unit POWER M1 M2 Port for remote switch CN21 Port for power supply CN36 Port for temperature board T1 T2...
  • Page 26 9.3.2 1-phase for 4-16kW units 1) PCB A， 4-10kW，Inverter module Remarks: for 4-6kw, two capacitors CN20 Coding Assembly unit Assembly unit Coding Compressor connection port U Reserved(CN302) Compressor connection port V Port for communication with PCB B(CN32) Compressor connection port W Input port N for rectifier bridge(CN502) Output port for +12V/9V(CN20) Input port L for rectifier bridge(CN501)
  • Page 27 2) PCB B, Main control board of heat pump system CN10 CN27 CN11 CN22 CN24 CN17 CN26 CN28 CN13 CN55 CN18 CN14 CN7 CN5 CN6 CN16 CN19 CN21 CN29 CN33 CN2 CN30 CN36 CN37 CN38 CN20 26 25 24 Coding Assembly unit Coding Assembly unit...
  • Page 28 9.3.4 3-phase for 12/14/16 kW units 1) PCB A， Inverter module CN16 CN22 CN15 CN23 CN17 CN18 CN20 CN19 Coding Assembly unit Assembly unit Coding Output port for +15V(CN20) Input port P_in for IPM module (CN1) Compressor connection port W (CN19) Port for communication with PCB B (CN8) PED board(CN22) Compressor connection port V (CN18)
  • Page 29 2) PCB B, Main control board of heat pump system CN41 CN26 CN24 CN36 CN21 CN18 CN31 CN29 CN10 CN35 CN11 CN28 CN20 CN37 CN27 V i n CN22 CN30 CN38 CN53 CN109 Coding Assembly unit Assembly unit Coding Port for temp.sensor Tp(CN8) Port for ground wire(CN38) Port for outdoor ambient temp.
  • Page 30 3) PCB C, filter board CN204 CN205 CN206 CN30 CN213 CN214 CN202 CN211 CN203 CN200 CN201 CN212 PCB C 3-phase 12/14/16kW Coding Assembly unit Coding Assembly unit Power supply L2(CN201) Power filtering L3(L3’) Power supply L3(CN200) Power filtering L2(L2’) Power supply N(CN203) Power filtering L1(L1’) Power supply port of 310VDC(CN212) Power supply port for main control board(CN30)
  • Page 31 9.3.5 Controls parts for backup heater(Optional) 1-phase 4/6kW with backup heater(1-phase 3kW) 1-phase 8-16kW with backup heater(1-phase 3kW) 1-phase 8-16kW with backup heater(3-phase 9kW) 1-phase 12-16kW with backup heater(1-phase 3kW) 1-phase 12-16kW with backup heater(3-phase 9kW) Coding Assembly unit Coding Assembly unit Auto thermal protector Backup heater contactor KM2...
  • Page 32 9.4 Water piping All piping lengths and distances have been taken into consideration. Requirements Valve The maximum allowed thermistor cable length is 20m. This is the maximum allowable distance between the domestic hot water tank and the unit (only for installations with a domestic hot water tank).The thermistor cable supplied with Thermistor cable length minus 2m the domestic hot water tank is 10m in length.In order to optimize efficiency we...
  • Page 33 Before continuing installation of the unit, check the following: The maximum water pressure ≤ 3 bar. The maximum water temperature ≤ 70°C according to safety device setting. Always use materials that are compatible with the water used in the system and with the materials used in the unit. Ensure that components installed in the field piping can withstand the water pressure and temperature.
  • Page 34 9.4.3 Water circuit connection Water connections must made correctly 9.4.4 Water circuit anti-freeze protection accordance with labels on the outdoor unit, with respect All internal hydronic parts are insulated to reduce heat to the water inlet and water outlet. loss. Insulation must also be added to the field piping. CAUTION Be careful not to deform the unit’s piping by In event of a power failure, the above features would not...
  • Page 35 CAUTION When the unit is not running for a long time, make sure the unit is powered on all the time. If you want to cut off the power, the water in the system pipe needs to be drained clean, avoid the unit and pipeline system be damaged by freezing.
  • Page 36 9.6 Water piping insulation The complete water circuit including all piping, water piping must be insulated to prevent condensation during cooling operation and reduction of the heating and cooling capacity as well as prevention of freezing of the outside water piping during winter. The insulation material should at least of B1 fire resistance rating and complies with all applicable legislation.
  • Page 37 AHS1 AHS2 1OFF 2OFF DFT2 DFT1 IBH1 3OFF CN11 CN30 25 T Outdoor Indoor Description AC/DC Required number of conductors Maximum running current Item Solar energy kit signal cable 200mA 200mA User interface cable Room thermostat cable 200mA(a) Solar pump control cable 200mA(a) Outside circulation pump control cable 200mA(a)
  • Page 38 NOTE Please use H07RN-F for the power wire, all the cable are connect to high voltage except for thermistor cable and cable for user interface. Equipment must be grounded. All high-voltage external load, if it is metal or a grounded port, must be grounded. All external load current is needed less than 0.2A, if the single load current is greater than 0.2A, the load must be controlled through AC contactor.
  • Page 39 Field wiring guidelines Most field wiring on the unit is to be made on the terminal block inside the switch box. To gain access to the terminal block, remove the switch box service panel (door 2). WARNING Switch off all power including the unit power supply and backup heater and domestic hot water tank power supply (if applicable) before removing the switch box service panel.
  • Page 40 Table 9-1 Rated current Nominal cross-sectional area (mm ) of appliance:（A） Flexible cords Cable for fixed wiring 0.5 and 0.75 and 2.5 ≤ 0.75 and 1 and 2.5 > ≤ and 1.5 and 2.5 > ≤ 10 and 1.5 and 2.5 1.5 and 4 >...
  • Page 41 NOTE MCA : Max. Circuit Amps. (A) TOCA : Total Over-current Amps. (A) MFA : Max. Fuse Amps. (A) MSC : Max. Starting Amps. (A) RLA : In nominal cooling or heating test condition，the input Amps of compressor where MAX. Hz can operate Rated Load Amps.
  • Page 42 Stated values are maximum values (see electrical data for exact values). 9.7.6 Connection for other components Uint 4-16kW P_c P_o P_s P_d 1OFF AHS1 AHS2 2OFF IBH1 N 3ON 3OFF DFT2 DFT1 CN11 CN30 Code Code Print Print Connect to Connect to Solar energy input ①...
  • Page 43 25 26 1 2 3 4 5 29 30 31 32 6 7 8 9 10 CN11 CN30 25 26 27 28 1 2 3 4 5 29 30 31 32 6 7 8 9 10 CN11 CN30 Power supply 7 5 3 1 Contactor (TBH)
  • Page 44 5) For Pumpc and DHW pipe pump : 25 26 27 28 1 2 3 4 5 29 30 31 32 6 7 8 9 10 CN11 CN30 25 26 27 28 1 2 3 4 5 Power supply 29 30 31 32 6 7 8 9 10 7 5 3 1 CN11...
  • Page 45 Method C （Double zone control） Hydraulic Module is connected with two room thermostat, while user interface FOR SERVICEMAN set ROOM THERMOSTAT to DOUBLE ZONE: C.1 When unit detect voltage is 230VAC between H and L1 ,zone1 turns on.When unit detect voltage is 0VAC between H and L1, zone1 turns off.
  • Page 46 C.2 When unit detect voltage is 12VDC between CL and COM, 8) For additional heat source control： 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.
  • Page 47 Voltage 220-240VAC Maximum running current(A) Wiring size(mm 0.75 11) For smart grid: Control port signal type Type 1 The unit has smart grid function, there are two ports on PCB to connect SG signal and EVU signal as following: 10) For outside circulation pump P_o: CN24 CN28 CN16...
  • Page 48 10 START-UP AND CONFIGURATION The unit should be configured by the installer to match the installation environment (outdoor climate, installed options, etc.) and user expertise. CAUTION It is important that all information in this chapter is read sequentially by the installer and that the system is configured as applicable.
  • Page 49 Temperature curves for cooling mode - 10≤ T4＜15 15≤ T4＜22 22≤ T4＜30 30≤ T4 1- T1S 2- T1S 3- T1S 4- T1S 5- T1S 6- T1S 7- T1S 8- T1S - 10≤ T4＜15 15≤ T4＜22 22≤ T4＜30 30≤ T4 1- T1S 2- T1S 3- T1S 4- T1S...
  • Page 50 Factory Factory Factory ON=1 OFF=0 ON=1 OFF=0 ON=1 OFF=0 switch switch switch defaluts defaluts defaluts 0/0=3kW IBH(One-stage Start pumpo after Start pumpo after control) Reserved Reserved six hours will six hours will 0/1=6kW IBH(Two-stage be invalid be valid OFF/OFF control) 1/1=9kW IBH(Three-stage Reserved Reserved without TBH...
  • Page 51 10.5 The circulation pump The relationships between the head and the water flow rated,the PMW Return and the water flow rated are shown in the graph below. 4-10kW (Pump maintains maximum output) Flow rate （ m /h） Water resistance(KPa) 2.87 29.1 2.71 34.2...
  • Page 52 CAUTION If the valves are at the incorrect position, the circulation pump will be damaged. DANGER If it's necessary to check the running status of the pump when unit power on, please do not touch the internal electronic control box components to avoid electric shock. Failure diagnosis at first installation If nothing is displayed on the user interface, it is necessary to check for any of the following abnormalities before diagnosing possible error codes.
  • Page 53 About FOR SERVICEMAN 10.6.1 DHW MODE SETTING DHW = domestic hot water "FOR SERVICEMAN" is designed for the installer to set the parameters. Go to MENU> FOR SERVICEMAN> 1.DHW MODE SETTING. Press OK. The following pages will be Setting the composition of equipment. displayed: Setting the parameters.
  • Page 54 10.6.5 TEMP. TYPE SETTING 2 COOL MODE SETTING About TEMP. TYPE SETTING 2.1 COOL MODE 2.2 t_T4_FRESH_C 2.0HRS The TEMP. TYPE SETTING is used for selecting whether 2.3 T4CMAX 43°C the water flow temperature or room temperature is used 2.4 T4CMIN 20°C to control the ON/OFF of the heat pump.
  • Page 55 10.6.7 Other HEATING SOURCE In this case, the setting value of zone 1 is T1S,the setting value of zone 2 is T1S2. The OTHER HEATING SOURCE is used to set the parameters of the backup heater, additional heating If you set DOUBLE ZONE and ROOM TEMP. to YES, sources and solar energy kit.
  • Page 56 9 SERVICE CALL If YES is selected, the following pages will be displayed: PHONE NO. 33512345678 MOBILE NO. 8613929145152 11 TEST RUN 11.1 POINT CHECK 11.2 AIR PURGE 11.3 CIRCULATION PUMP RUNNING CONFIRM ADJUST 11.4 COOL MODE RUNNING 11.5 HEAT MODE RUNNING The number displayed on the user interface is the phone ENTER number of your local dealer.
  • Page 57 When in air purge mode, SV1 will open, SV2 will close. During HEAT MODE test running, the default target outlet 60s later the pump in the unit (PUMPI) will operate for water temperature is 35°C. The IBH (internal backup 10min during which the flow switch will not work. After the heater) will turn on after the compressor runs for 10 min.
  • Page 58 Go to MENU> FOR SERVICEMAN> 12.SPECIAL During preheating for floor, all the buttons except OK are FUNCTION. invalid. If you want to turn off the preheating for floor, please press OK. Before floor heating, if a large amount of water remains on the floor, the floor may be warped or even rupture during The following page will be displayed: floor heating operation, in order to protect the floor, floor...
  • Page 59 When the cursor is on OPERATE FLOOR DRYING,use Go to MENU> FOR SERVICEMAN>13.AUTO RESTART to scroll to YES and press OK. The following page will be displayed: 13 AUTO RESTART 12.2 FLOOR DRYING UP 13.1 COOL/HEAT MODE DO YOU WANT TO TURN OFF THE 13.2 DHW MODE FLOOR DRYING UP FUNCTION? ADJUST...
  • Page 60 10.6.16 Setting parameters The parameters related to this chapter are shown in the table below. Setting Order number Code State Default Minumum Maximum Unit interval DHW MODE Enable or disable the DHW mode:0=NON,1=YES DISINFECT Enable or disable the disinfect mode:0=NON,1=YES DHW PRIORITY Enable or disable the DHW priority mode:0=NON,1=YES DHW PUMP...
  • Page 61 HEAT MODE Enable or disable the heating mode The refresh time of climate related curves for heating t_T4_FRESH_H hours mode The maximum ambient operating temperature for heating T4HMAX ℃ mode The minimum ambient operating temperature for heating T4HMIN ℃ mode dT1SH The temperature difference for starting the unit (T1) ℃...
  • Page 62 12.4 t_DRYUP The day for w arming up during floor drying up The continue days in high temperature during floor 12.5 t_HIGHPEAK drying up The day of dropping temperature during floor drying 12.6 t_DRYD The target peak temperature of w ater flow during 12.7 T_DRYPEAK °C...
  • Page 63 11 TEST RUN AND FINAL The following checks must be performed at least once a year by qualified person. CHECKS Water pressure Check the water pressure, if it is below 1 bar,fill water The installer is obliged to verify correct operation of unit to the system.
  • Page 64 13 TROUBLE SHOOTING This section provides useful information for diagnosing and correcting certain troubles which may occur in the unit. This troubleshooting and related corrective actions may only be carried out by your local technician. 13.1 General guidelines Before starting the troubleshooting procedure, carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring.
  • Page 65 Symptom 3: Pump is making noise (cavitation) POSSIBLE CAUSES CORRECTIVE ACTION There is air in the system. Purge air. • Check the water pressure. The water pressure must be > 1 bar (water is cold). • Check that the expansion vessel is not broken. Water pressure at pump •...
  • Page 66 Symptom 8: DHW mode can’t change to Heat mode immediately POSSIBLE CAUSES CORRECTIVE ACTION • Set "t_DHWHP_MAX" to minimum value, the suggested value is 60min. • If circulating pump out of unit is not controlled by unit, try to Heat exchanger for space connect it to the unit.
  • Page 67 OPERATION PARAMETER OPERATION PARAMETER OPERATION PARAMETER FAN SPEED 600R/MIN TW_O PLATE W-OUTLET TEMP. 35°C T3 OUTDOOR EXCHARGE TEMP. 5°C IDU TARGET FREQUENCY 46Hz TW_I PLATE W-INLET TEMP. 30°C T4 OUTDOOR AIR TEMP. 5°C FREQUENCY LIMITED TYPE T2 PLATE F-OUT TEMP. 35°C TF MODULE TEMP.
  • Page 68 13.4 Error codes When a safety device is activated, an error code(which does’t include external failure) will be displayed on the user interface. A list of all errors and corrective actions can be found in the table below. Reset the safety by turning the unit OFF and back ON. In case this procedure for resetting the safety is not successful, contact your local dealer.
  • Page 69 ERROR MALFUNCTION FAILURE CAUSE CODE OR PROTECTION AND CORRECTIVE ACTION "1.Check the resistance of the sensor. 2.The Tsolar sensor connector is loosen,reconnect it. Solar 3.The Tsolar sensor connector is wet or there is water temp.sensor(Tsolar) fault in,remove the water ,make the connector dry.Add waterproof adhesive.
  • Page 70 ERROR MALFUNCTION FAILURE CAUSE CODE OR PROTECTION AND CORRECTIVE ACTION 1.wire doesn’t connect between hyraulic module parallel. connect the wire. 2.Communication wire sequence is not right. Reconnect the Communication fault between wire in the right sequence. hydraulic module parallel 3. Whether there is a high magnetic field or high power interfere, such as lifts, large power transformers, etc..
  • Page 71 ERROR MALFUNCTION FAILURE CAUSE CODE OR PROTECTION AND CORRECTIVE ACTION Phase loss or neutral wire and 1.Check the power supply cables should be conneted stable,aviod phase loss. live wire are connected 2.Check whether the sequence of neutral wire and live wire are reversely(only for three phase connected reversely.
  • Page 72 1. Strong wind or typhoon below toward to the fan, to make the fan running in the opposite direction. Change the unit direction or make shelter to avoid typhoon below to the fan. The DC fan failure 2.fan motor is broken, change a new fan motor. 1.
  • Page 73 Heating mode, DHW mode: 1. The water flow is low; water temp is high, whether there is air in the water system. Release the air. 2. Water pressure is lower than 0.1Mpa, charge the water to let the pressure in the range of 0.15~0.2Mpa. 3.
  • Page 74 1. Power supply voltage of the unit is low, increase the power voltage to the required range. 2. The space between the units is too narrow for heat exchange. Increase the space between the units. 3. Heat exchanger is dirty or something is block on the surface. Clean the heat exchanger or remove the obstruction.
  • Page 75 Module protection DC generatrix low voltage protection Heat pump syserm high pressure protection DC generatrix high voltage protection Heat pump syserm high pressure protection 1. Check the Heat pump system pressure; 2. Check the phase resistance of compressor; 3. Check the U、V、W power line connection sequence between the inventer board and the compressor;...
  • Page 76 14 TECHNICAL SPECIFICATIONS 14.1 General 1-phase 1-phase 1-phase 3-phase 4/6 kW 8/10 kW 12/14/16 kW 12/14/16 kW Nominal capacity Refer to the Technical Data Dimensions HxWxD 792×1295×429mm 945×1385×526mm 945×1385×526mm 945×1385×526mm Weight (without backup heater) Net weight 121kg 144kg 98kg 160kg Gross weight 121kg 148kg...
  • Page 77 15 INFORMATION SERVICING 1) Checks to the area Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minmised. For repair to the refrigerating system, the following precautions shall be complied with prior to conducting work on the system.
  • Page 78 10) Repairs to sealed components a) During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior to any removal of sealed covers, etc. If it is absolutely necessary to have an electrical supply to equipment during servicing, then a permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation.
  • Page 79 16) Charging procedures In addition to conventional charging procedures, the following requirements shall be followed: Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as possible to minimize the amount of refrigerant contained in them. Cylinders shall be kept upright.
  • Page 80 ANNEX A: Refrigerant cycle Outlet Inlet Cooling Heating Description Description Item Item Refrigerant inlet (liquid pipe) temperature sensor Compressor Refrigerant outlet (gas pipe) temperature sensor 4-Way Valve Water outlet temperature sensor Gas-liquid separator Water Inlet temperature sensor Air side heat exchanger Air purge valve Electronic expansion Valve Expansion vessel...
  • Page 81 ANNEX B: Electrically controlled wiring diagram 1-phase 4/6/8/10kW HEAT1-2 HEAT1-1 BROWN HEAT1-2 CN18 BLUE HEAT1-1 BLUE BLUE HEAT2 HEAT2 CN16 CN19 HEAT3 HEAT3 HEAT4 CN21 HEAT4 EEV1 CN33 E H2 H1 CN30 E Y X CN36 CN37 CN38 CN32...
  • Page 82 Annex C: Electrically controlled wiring diagram 1-phase 12/14/16kW HEAT1-2 HEAT1-1 HEAT1-2 CN18 HEAT1-1 BLUE BLUE HEAT2 CN16 HEAT2 CN19 HEAT3 HEAT3 HEAT4 CN21 HEAT4 EEV1 CN33 E H2 H1 CN30 E Y X CN36 CN37 CN38 CN19 CN23...
  • Page 83 Annex D: Electrically controlled wiring diagram 3-phase 12/14/16kW...
  • Page 84 Annex E: Electrically controlled wiring diagram 1-phase 4/6/8/10kW +1-phase 3kW backup heater HEAT1-2 HEAT1-1 BROWN HEAT1-2 CN18 BLUE HEAT1-1 BLUE BLUE HEAT2 HEAT2 CN16 CN19 HEAT3 HEAT3 HEAT4 CN21 HEAT4 EEV1 CN33 E H2 H1 CN30 E Y X CN36 CN37 CN38 CN32...
  • Page 85 Annex F: Electrically controlled wiring diagram 1-phase 12/14/16kW +1-phase 3kW backup heater HEAT1-2 HEAT1-1 CN18 HEAT1-2 HEAT1-1 BLUE BLUE HEAT2 CN16 HEAT2 HEAT3 CN19 HEAT3 HEAT4 CN21 HEAT4 EEV1 CN33 E H2 H1 CN30 E Y X CN36 CN37 CN38 CN19 CN23...
  • Page 86 Annex G: Electrically controlled wiring diagram 3-phase 12/14/16kW +1-phase 3kW backup heater...
  • Page 87 Annex H: Electrically controlled wiring diagram 1-phase 8/10kW +3-phase 9kW backup heater HEAT1-2 HEAT1-1 BROWN HEAT1-2 CN18 BLUE HEAT1-1 BLUE BLUE HEAT2 HEAT2 CN16 CN19 HEAT3 HEAT3 HEAT4 CN21 HEAT4 EEV1 CN33 E H2 H1 CN30 E Y X CN36 CN37 CN38 CN32...
  • Page 88 Annex I: Electrically controlled wiring diagram 1-phase 12/14/16kW +3-phase 9kW backup heater HEAT1-2 HEAT1-1 HEAT1-2 CN18 HEAT1-1 BLUE BLUE HEAT2 HEAT2 CN16 CN19 HEAT3 HEAT3 HEAT4 HEAT4 CN21 EEV1 CN33 E H2 H1 E Y X CN30 CN36 CN37 CN38 CN19 CN23 BLACK...
  • Page 89 Annex J: Electrically controlled wiring diagram 3-phase 12/14/16kW +3-phase 9kW backup heater...
  • Page 90 ANNEX K: To install the E-heating tape at the drainage outlet (by client) Connect the wireCeating tape at the drainage outlet to the wire joint XT3. To the heating tape of drainage outlet 4/6kW 8/10kW To the heating tape of drainage outlet...
  • Page 91 ANNEX K: To the heating 12/14/16kW(1-phase) tape of drainage outlet 12/14/16kW(3-phase) To the heating tape of drainage outlet NOTE: 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 volatge 230VAC.
  • Page 92 NOTE...
  • Page 94 It + Fr + Es + Pt Pl + Tu + Ro + Ru De + Nl Manuals inn various languages...
  • Page 95 规格：A4 材料：封面、封底为105g铜版纸 内页为100g双胶纸，黑白打印...

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