MITSUI ENMHP9RP24MI Installation And Owner's Manual
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MITSUI ENMHP9RP24MI Installation And Owner's Manual

MITSUI ENMHP9RP24MI Installation And Owner's Manual

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INSTALLATION
AND OWNER'S MANUAL
M-thermal split
Indoor unit
SMK-60/CGN8
SMK-80/CGN8
EN-IT
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.
MONO HEAT PUMPS
INSTALLATION
AND OWNER'S MANUAL
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Summary of Contents for MITSUI ENMHP9RP24MI

  • Page 1 MONO HEAT PUMPS INSTALLATION AND OWNER’S MANUAL INSTALLATION AND OWNER’S MANUAL M-thermal split Indoor unit SMK-60/CGN8 SMK-80/CGN8 EN-IT IMPORTANT NOTE: Scan the QR code to read the manual Thank you very much for purchasing our product, in other languages Before using your unit , please read this manual carefully and keep it for future reference.

  • Page 2: Table Of Contents

    CONTENTS 1 SAFETY PRECAUTIONS GENERAL INTRODUCTION ACCESSORIES Accessories supplied with the unit Accessories avaliable from supplier BEFORE INSTALLATION IMPORTANT INFORMATION FOR THE REFRIGERANT INSTALLATION SITE Selecting a location in cold climates Selecting a location in direct sunlight INSTALLATION PRECAUTIONS Dimensions Installation requirements Drain hole position Servicing space requirements...
  • Page 3 11 MENU STRUCTURE: OVERVIEW 11.1 Setting parameters 12 FINAL CHECKS AND TEST RUN 12.1 Final checks 12.2 Test run operation(manually) 13 MAINTENANCE AND SERVICE 14 TROUBLESHOOTING General guidelines 14.1 General symptoms 14.2 14.3 Error codes 15 TECHNICAL SPECIFICATIONS General 15.1 15.2 Electrical specifications 16 INFORMATION SERVICING...
  • Page 4 Please remove the hollow plate after installation. NOTE Picture in this manual for reference only, please refer to the actual 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).

  • Page 5: Safety Precautions

    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 reference. 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: General Introduction

    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: Accessories

    In cooling mode, the water flowing temperature 3 ACCESSORIES (TW_out) range in different outdoor temperature(T4) is listed below: 3.1 Accessories supplied with the unit Installation Fittings Name Shape Quantity Installation and owner’s manual(this book) Technical data manual Y-shape filter TW_out 5 11 Operation range by heat pump with possible limitation and Wired controller...

  • Page 10: Before Installation

    4 BEFORE INSTALLATION Before installation Be sure to confirm the model name and the serial 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.

  • Page 11: Installation Site

    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: Selecting A Location In Cold Climates

    In normal condition,refer to the figures below for installation of If you install the unit on a building the unit: 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).

  • Page 13: Installation Precautions

    7 INSTALLATION PRECAUTIONS 7.1 Dimensions (unit:mm) Model 5-16kW 1040 1068 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. In accordance with the foundation drawing in the figure, fix the unit securely 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.

  • Page 14: Drain Hole Position

    7.3 Drain hole position Drain hole 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. 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 opened.
  • 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. A(mm) B1(mm) B2(mm) C(mm) Unit ≥2500 ≥1000 5~9kW ≥300 ≥600 ≥3000 ≥1500 12~16kW...

  • Page 16: Typical Applications

    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) TBH: Domestic hot water tank booster 11.1 User interface 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: Application

    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 unit can be connected to a low voltage room thermostat.
  • Page 19 8.2.2 Mode set control Outdoor FCU1 FCU2 FCUn FHL1 FHL2 FHLn Code Assembly unit Code Assembly unit Main unit Filling valve (Field supply) User interface Drainage valve (Field supply ) Buffer tank (Field supply ) Collector/distributor Automatic air purge valve Bypass valve (Field supply) Drainage valve SV2: 3...
  • Page 20 8.2.3 Double zone control Outdoor RAD.1 ZONE1 RAD.2 RAD.n ZONE2 23.1 23.2 Modbus FHL1 FHL2 FHLn Code Assembly unit Code Assembly unit Drainage valve (Field supply ) Main unit Collector/distributor (Field supply) User interface Buffer tank (Field supply) Mixing station (Field supply) Automatic air purge valve SV3: Mixing valve (Field supply) 23.1...

  • Page 21: Cascade System

    NOTE Drainage valve must be installed at the lowest position of the piping system. 8.3 Cascade system ： （ ） Buffer tank Automatic air purge valve Tbt: Buffer tank upper...
  • Page 22 The space operates in cooling or r manometer heating mode The space only operates in heating mode Auxiliary heating source(Field supply) Automatic air purge valve All slave units can operate in space heating mode. The operation mode and setting temperature are set on the user interface. Due to changes of the outdoor tempearature and the required load indoors, multiple outdoor units may operate at different times.

  • Page 23: Buffer Tank Volume Requirement

    1. In cascade system, Tbt sensor must be connected to master unit and set Tbt vaild on user interface，otherwise all slave units will not work. 2. If outside circulation pump need to be connected in series in system when the head of internal water pump is not enough, outside circulation pump is suggested to be installed after the balance tank.

  • Page 24: Control Board

    9.2 Control board 9.2.1 Hydraulic module board CN24 CN28 CN23 CN13 CN37 CN15 CN38 CN18 CN21 CN64 CN27 CN25 CN32 CN66 CN33 CN29 CN31 CN35 CN42 CN36 CN22 CN17 14 15 CN11 CN30 Order Port Code Assembly unit Order Port Code Assembly unit Port for communication with the HOME BUS...

  • Page 25: Main Control Board

    9.2.2 Main control board COMM H-SEN CN45 P E Q Code Assembly unit Code Assembly unit Power input port from Main control board (CN1) Reserved(CN42) Port for communication with Inverter module Reserved(CN41) (CN43) Port for high pressure switch (CN18) OUT1 (CN40) Port for low pressure switch (CN17) Port for crankcase heating tape(CN38) Port for high pressure sensor(CN3)
  • Page 26 9.2.3 1-phase for 5-16kW units 1) 5/7/9kW， Inverter module CN10 CN12 CN13 Code Assembly unit Assembly unit Code Compressor connection port U Port for high pressure switch (CN12)（Reserved） Compressor connection port V Port for power supply(CN13) Compressor connection port W Input port L for rectifier bridge(CN501) Input port N for rectifier bridge(CN502) Port for fan(CN32)
  • Page 27 9.2.4 3-phase for 12/14/16 kW units 1) Inverter module CN12 CN16 CN22 CN15 CN39 CN17 CN18 CN19 CN10 Code Assembly unit Assembly unit Code Compressor connection port W (CN19) Power Input port L1 (CN16) Compressor connection port V (CN18) Input port P_in for IPM module (CN1) Compressor connection port U (CN17) Port for communication with main control board (CN43) PED board(CN22)

  • Page 28: Filter Board

    2) Filter board CN204 CN205 CN206 CN30 CN214 CN202 CN203 CN200 CN201 PCB C 3-phase 12/14/16kW Code Assembly unit Code Assembly unit Power filtering output L3’(CN204) Power supply L1(CN202) Power filtering L2’(CN205) Power supply L2(CN201) Power filtering L1’(CN206) Power supply L3(CN200) Power supply N(CN203) Port for voltage detection(CN30) Power supply port for main control board(CN214)

  • Page 29: Water Piping

    9.3 Water piping All piping lengths and distances have been taken into consideration. Requirements 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 the domestic hot water tank is 10m in length.In order to optimize efficiency we recommend installing the 3-way valve and the domestic hot water tank as close as possible to the unit.
  • Page 30 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 31: Water Circuit Connection

    9.3.3 Water circuit connection Water connections must be made correctly in 9.3.4 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.

  • Page 32: Filling Water

    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 needs to be drained clean to avoid the unit and piping system be damaged by freezing. Also the power of the unit needs to be cut off after water in the system is drained off.

  • Page 33: Water Piping Insulation

    9.5 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 34 CN66 CN31 AHS2 1OFF 2OFF 3OFF AHS1 X/HA Y/HB 14 15 16 IBH1 IBH2 C1 C1 CN11 CN30 Main f ( t c i t Description AC/DC Required number of conductors Maximum running current Item Solar energy kit signal cable 200mA User interface cable 200mA...

  • Page 35: Precautions On Wiring Of Power Supply

    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 36 9.6.4 Safety device requirement 1. Select the wire diameters( minimum valve) individually for each unit based on the table 9-1 and table 9-2， where the rated current in table 9-1 means MCA in table 9-2. In case the MCA exceeds 63A, the wire diameters should be selected according to the national wiring regulation.

  • Page 37: Unit Power Supply

    NOTE 9.6.5 Remove the switch box cover 1-phase 5-16kW standard and 3-phase 12-16kW standard Unit 12kW 14kW 16kW 12kW 3-PH 14kW 3-PH 16kW 3-PH Maximum overcurrent protector(MOP)(A) Wiring size(mm L2 L3 UNIT POWER SUPPLY UNIT POWER SUPPLY 1-phase 3-phase The ground fault circuit interrupter must be 1 high-speed type of 30mA(<0.1s). Please use 3-core shielded wire. Stated values are maximum values (see electrical data for exact values).
  • Page 38 Slave unit Master unit X/HAY/HB Please use the shielded wire, and the shield layer must be grounded. H1 H2 H1 H2 H1 H2 ..Master unit Slave unit 1 Slave unit 2 Slave unit x Only the last IDU requires adding the build-out resistor at H1 and H2.
  • Page 39 When connecting to the power supply terminal, use the circular wiring terminal with the insulation casing (see Figure 9.1). Use power cord that conforms to the specifications and connect the power cord firmly. To prevent the cord from being pulled out by external force, make sure it is fixed securely. If circular wiring terminal with the insulation casing cannot be used, please make sure that: •...

  • Page 40: Power Supply

    9.6.6 Connection for other components unit 5-16kW See 9.2.1for detailed port description. Port provide the control signal to the load.Two kind of control signal port: Type 1：Dry connector without voltage. Type 2：Port provide the signal with 220V voltage. If the current of load is <0.2A, load can connect to the port directly. If the current of load is >=0.2A, the AC contactor is required to connected for the load.
  • Page 41 Control signal port of hydraulic module: The CN11contains 2) For 3-way valve SV1、SV2 and SV3: terminals for 3-way valve, pump,booster heater , etc. The parts wiring is illustrated below: 1OFF 1OFF 1) For additional heat source control(AHS)： CN11 AHS1 AHS2 CN11 FUSE Power supply...
  • Page 42 3) For outside pump : CN11 CN11 Power supply Power supply 7 5 3 1 7 5 3 1 zone2 pump DHW pipe pump P_d Voltage 220-240VAC Maximum running current(A) Wiring size(mm 0.75 CN11 Control port signal type Type 2 a) Procedure Connect the cable to the appropriate terminals as shown in the picture.
  • Page 43 For tank booster heater(TBH)： 7) For room thermostat: Room thermostat (Low voltage) : "POWER IN" provide the voltage to CN11 the RT. NOTE The room thermostat must low voltage. Power supply Room thermostat (Low voltage): 7 5 3 1 CN24 CN28 NOTE CN23...
  • Page 44 C.2 When unit detect voltage is 12VDC between CL and COM, CN24 CN28 zone2 turn on according to climate temp curve. When unit CN23 detect voltage is 0V between CL and COM, zone2 turn off. CN13 C.3 When HT-COM and CL-COM are detected as 0VDC, unit CN37 turn off.
  • Page 45 10) For smart grid: 9) For remote shut down: The unit has smart grid function, there are two ports on PCB to connect SG signal and EVU signal as following: CN24 CN28 CN23 CN13 CN24 CN28 CN37 CN23 CN15 CN38 CN18 CN21 CN13...

  • Page 46: Start-Up And Configuration

    10 START-UP AND CONFIGURATION 10.3 Failure diagnosis at first installation If nothing is displayed on the user interface, it is The unit should be configured by the installer to match the necessary to check for any of the following installation environment (outdoor climate, installed options, etc.) abnormalities before diagnosing possible error codes.
  • Page 47 10.4.3.2 Wiring CAUTION Do not place the wired remote controller near the lamps, to avoid the remote signal of the controller to be disturbed. (refer to the right X1/HB X/HA Y/HB P Q E1 H1 H2 figure) X2/HA Hydraulic module 10.4.2 Other Precautions Wired Controller 10.4.2.1.

  • Page 48: Field Settings

    Screw hole installed on the Putty Putty three M4X20 Putty Trap Trap Trap Screw hole installed on 86 Electrician box, use two M4X25 Avoid the water enter into the wired remote controller, use trap and putty to seal the connectors of wires during wiring installation.

  • Page 49: Menu Structure: Overview

    11 MENU STRUCTURE : OVERVIEW MENU OPERATION MODE HEAT OPERATION MODE COOL PRESET TEMPERATURE AUTO DOMESTIC HOT WATER(DHW) SCHEDULE PRESET TEMPERATURE OPTIONS PRESET TEMP. CHILD LOCK WEATHER TEMP. SET SERVICE INFORMATION ECO MODE OPERATION PARAMETER FOR SERVICEMAN DOMESTIC HOT WATER(DHW) WLAN SETTING DISINFECT DISINFECT...
  • Page 50 7 OTHER HEATING SOURCE FOR SERVICEMAN 7.1 IBH FUNCTION 1 DHW MODE SETTING 7.2 IBH LOCATE 2 COOL MODE SETTING 7.3 dT1_IBH_ON 3 HEAT MODE SETTING 7.4 t_IBH_DELAY 4 AUTO MODE SETTING 7.5 T4_IBH_ON 1 DHW MODE SETTING 5 TEMP. TYPE SETTING 7.6 P_IBH1 6 ROOM THERMOSTAT 1.1 DHW MODE...

  • Page 51: Setting Parameters

    11.1 Setting parameters The parameters related to this chapter are shown in the table below. Order Unit Code State Default number 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 PUMP_D Enable or disable the DHW pump mode:0=NON,1=YES DHW PRIORITY TIME SET Enable or disable the DHW priority time set:0=NON,1=YES...
  • Page 52 Order Code State Default Unit number The maximum ambient operating temperature for heating °C T4HMAX mode The minimum ambient operating temperature for heating °C T4HMIN mode The temperature difference between T1 and T1S(the dT1SH °C set water temperature) for starting the heat pump The temperature difference between actual room dTSH temperature Ta and the set room temperature Tas for...
  • Page 53 Order Code State Default Unit number 7.14 GAS_COST Price of gas 0.85 €/m 7.15 ELE_COST 0.20 Price of electricity €/kWh 7.16 MAX_SETHEATER Maximum setting temperature of additional heating source °C 7.17 MIN_SETHEATER Minimum setting temperature of additional heating source °C The voltage corresponding to the maximum setting 7.18 MAX_SIGHEATER...
  • Page 54 Order Code State Default Unit number Define the function of the M1M2 switch：0= REMOTE 15.1 M1M2 ON/OFF,1= TBH ON/OFF,2= AHS ON/OFF Enable or disable the SMART GRID：0=NON,1=YES 15.2 SMART GRID Control options of Port T1T2：0=NON,1=RT/Ta_PCB 15.3 T1T2 15.4 Enable or disable the Tbt：0=NON,1=YES 15.5 P_X PORT Select the function of P_X PORT:0=DEFORST,1=ALARM...

  • Page 55: Final Checks And Test Run

    11 TEST RUN 12 FINAL CHECKS AND TEST RUN The installer is obliged to verify correct operation of unit after installation. 12.1 Final checks ON/OFF Before switching on the unit, read following recommendations: When the installation and parameter setting are Press ▼...

  • Page 56: Maintenance And Service

    11 TEST RUN Press to scroll the cursor to YES and press . The test run will turn off. TEST RUN IS ON. COOL MODE IS ON. 11 TEST RUN(AIR PURGE) LEAVING WATER TEMPERATURE IS 15°C. AIR PURGE PUMPI OUTPUT AIR PURGE RUNNING TIME 20min CONFIRM...

  • Page 57: Troubleshooting

    The following checks must be performed at least once a year by qualified person. Water pressure -Check the water pressure, if it is below 1 bar,fill water to the system. Water filter -Clean the water filter. Water pressure relief valve -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.

  • Page 58: General Symptoms

    14.2 General symptoms Symptom 1: The unit is turned on but the unit is not heating or cooling as expected CORRECTIVE ACTION POSSIBLE CAUSES Check the parameters (T4HMAX, T4HMIN in heating mode; T4CMAX, T4CMIN The temperature setting is not correct. in cooling mode;...
  • Page 59 Symptom 6: Space heating capacity shortage at low outdoor temperatures POSSIBLE CAUSES CORRECTIVE ACTION • Check if that the "OTHER HEATING SOURCE/ IBH FUNCTION" is enabled. • Check whether or not the thermal protector of the backup heater has been Backup heater operation is not activated.

  • Page 60: Error Codes

    14.3 Error codes A series of error codes and corresponding meaning can be found in the table below. Reset the unit by turning the unit ON or OFF. If Resetting the unit is invalid, contact your local dealer. UPPER UNIT ERROR MALFUNCTION UPPER UNIT...
  • Page 61 UPPER UNIT ERROR MALFUNCTION DISPLAY No. CODE OR PROTECTION High temperature protection of air side heat exchanger temperature(T3). High temperature protection of inverter module DC bus low voltage protection Inverter or compressor protection DC bus low voltage protection. DC bus high voltage protection Current sampling error of PFC circuit...

  • Page 62: Technical Specifications

    15 TECHNICAL SPECIFICATIONS 15.1 General 1-phase 1-phase 3-phase Model 5/7/9 kW 12/14/16 kW 12/14/16 kW Nominal capacity Refer to the Technical Data Dimensions HxWxD 865×1040×410mm 865×1040×410mm 865×1040×410mm Packing Dimensions 970×1190×560mm 970×1190×560mm 970×1190×560mm HxWxD Weight Net weight 87kg 106kg 120kg Gross weight 103kg 122kg 136kg...

  • Page 63: Information Servicing

    16 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 64 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 65 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 66: Water Outlet

    Water outlet Water inlet ⑨ ⑩ ⑨ ④ ③ ⑦ ② ⑥ ⑧ ① ⑤ Cooling Heating Description Description Item Item Compressor Plate heat exchanger Discharge temperature sensor Gas refrigerant temperature sensor High pressure switch Pressure sensor 4-way valve Suction temperature sensor Ambient temperature sensor Low pressure switch Air side heat exchanger...
  • Page 67 ANNEX B: To install the E-heating tape at the drainage outlet (by client) Connect the heating tape wire at the drainage outlet to the wire joint XT3. To the heating tape of drainage outlet 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.
  • Page 68 NOTES...

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