Kaisai KHC-22RY3 Instalation Manual
  1. Manuals
  2. Brands
  3. Kaisai Manuals
  4. Heat Pump
  5. KHC-22RY3
  6. Instalation manual

Kaisai KHC-22RY3 Instalation Manual

Mono type heat pump
Hide thumbs
Table of Contents

Advertisement

Quick Links

INSTALATION MANUAL
EN
MONO TYPE HEAT PUMP

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the KHC-22RY3 and is the answer not in the manual?

Questions and answers

Related Manuals for Kaisai KHC-22RY3

Summary of Contents for Kaisai KHC-22RY3

  • Page 1 INSTALATION MANUAL MONO TYPE HEAT PUMP...
  • Page 3 Dla zapewnienia prawidłowej obsługi, zapoznaj się z instrukcją i przechowuj ją do wykorzystania w przyszłości. Thank you very much for purchasing our product, W przypadku zagubienia instrukcji obsługi, skontaktuj się z lokalnym dystrybutorem lub odwiedź stronę www.kaisai.com lub Before using your unit , please read this manual carefully and keep it for future reference.

  • Page 4: Table Of Contents

    CONTENTS SAFETY CONSIDERATIONS GENERAL INFORMATION ACCESSORIES 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 Application 2 Application 3...

  • Page 5: Application

    10.3 Initial start-up at low outdoor ambient temperature Pre-operation checks 10.4 Powering up the unit 10.5 Setting the pump speed 10.6 Field settings 10.7 TEST RUN AND FINAL CHECKS 11.1 Final checks 11.2 Test run operation (manually) MAINTENANCE AND SERVICE TROUBLE SHOOTING 13.1 General guidelines...

  • Page 6: Application

    Wiring diagram: Electric Control System Terminal Block Hydraulic System Refrigerant System NOTE The picture and function described in this manual contain the backup heater components.

  • Page 7: Safety Considerations

    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 8 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 9: General Information

    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 10 If you add the backup heater in the system, the backup heater can increase the heating capacity during cold outdoor Solar kit for domestic hot water tank(field supply) temperatures. The backup heater also serves as a backup in case of malfunctioning and for freeze protection of the outside An optional solar kit can be connected to the unit.

  • Page 11: Accessories

    3 ACCESSORIES Accessories supplied with the unit Shape Quantity Shape Quantity Name Name Installation and owner’s Y-shape filter manual(this book) Water outlet connection pipe Operation manual assembly+rubber stopper Technical data manual Wired controller Thermistor for domestic hot water Adapter for inlet water pipe tank (T5) * +sealing ring Network matching wire***...

  • Page 12: Important Information For The Refrigerant

    5 IMPORTANT INFORMATION FOR THE REFRIGERANT This product has the fluorinated gas, it is forbidden to release to air. Refrigerant type: R32; Volume of GWP: 675. GWP=Global Warming Potential Factory charged refrigerant volume in the unit Model Tonnes CO equivalent Refrigerant/kg 18kW 5.00...

  • Page 13: Selecting A Location In Cold Climates

    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.

  • Page 14: Selecting A Location In Hot Climates

    6.2 Selecting a location in hot climates As the outdoor temperature is measured via the outdoor unit air thermistor, make sure to install the outdoor unit in the shade or a canopy should be constructed to avoild direct sunlight, so that it is not influenced by the sun’s heat, otherwise protection may be possible to the unit.

  • Page 15: Drain Hole Position

    7.3 Drain hole position Drain hole NOTE It's necessary to install an electrical heating belt if water can't drain out in cold weather. 7.4 Servicing space requirements 1） Single unit installation (Wall or obstacle) Air inlet >300 Maintain the electric wire and pipeline Air inlet >600...

  • Page 16: Typical Applications

    8 TYPICAL APPLICATIONS The application examples given below are for illustration only. 8.1 Application 1 Space heating with a room thermostat connected to the unit. ---- FHL1 FHL2 ---- FHLn Coding Assembly unit Coding Assembly unit Outdoor unit Room thermostat (field supply) Manometer Drain valve (field supply) Pressure relief valve...
  • Page 17 NOTE Make sure to connect the thermostat wires to the correct terminals, method B should be selected (see "For room thermostat" in 9.7.6 connection for other components). To correctly configure the ROOM THERMOSTAT in the FOR SERVICEMAN mode see 10.7 Field settings/ROOM THERMOSTAT. 8.2 Application 2 Space heating without room thermostat connected to the unit.
  • Page 18 Circulation pump operation The circulation pump (1.7) and (10) will operate as long as the unit is on for space heating. The circulation pump (1.7) will operate as long as the unit is on for heating domestic hot water (DHW). Space heating 1) The unit (1) will operate to achieve the target water flow temperature set on the wired controller.
  • Page 19 Coding Assembly unit Coding Assembly unit P_o: Outside circulation pump (field supply) Outdoor unit Manometer Collector / distributor (field supply) Pressure relief valve Domestic hot water tank (field supply) Expansion vessel 12.1 Air purge valve Plate heat exchanger Heat exchanger coil 12.2 Air purge valve Booster heater...
  • Page 20 CAUTION Be sure that the boiler and the integration of the boiler in the system is in accordance with relevant local laws and regula- tions. 8.4.1 Application a Boiler provide heat for space heating only 12.1 12.3 12.2 ---- FHL1 FHL2 ---- FHLn...

  • Page 21: Application

    8.4.3 Application c Boiler provide heat for domestic water heating. The ON/OFF of boiler controlled by unit. 12.1 12.3 12.2 ---- ---- FHL1 FHL2 FHLn Coding Assembly unit Coding Assembly unit Outdoor unit Expansion vessel (field supply) Manometer P_o: Outside circulation pump (field supply) Pressure relief valve Collector / distributor (field supply) Expansion vessel...

  • Page 22: Application

    During heating operation of the unit, the unit will operate to achieve the target water flow temperature set on the user interface. When weather dependent operation is active, the water temperature is determined automatically depending on the outdoor temperature. During heating operation of the boiler, the boiler will operate to achieve the target water flow temperature set on the user interface.
  • Page 23 Coding Assembly unit Coding Assembly unit Outdoor unit Fill valve (field supply) Manometer Balance tank (field supply) Pressure relief valve Air purge valve Expansion vessel Drain valve Plate heat exchanger Expansion vessel (field supply) Air purge valve P_o: Outside circulation pump (field supply) Collector / distributor (field supply) Flow switch Bypass valve (field supply)
  • Page 24 The operation and configuration of the field water circuit is the responsibility of the installer. We only offer a dual set point control function. This function allows two set points to be generated. Depending on the required water temperature (floor heating loops and/or fan coil units are required) the first set point or second set point can be activated.
  • Page 25 8.7 Application 7 The units are installed in parallel and can be used for cooling, heating and hot water. 6 units can be connected in parallel. Please refer to 9.7.5 for the parallel system electrical control system connection diagram. The parallel system can control and view the operation of the entire system only by connecting the master to the wire controller; If the DHW function is required, the water tank can only be connected to the master unit water circuit through a three-way valve, and controlled by the master unit;...

  • Page 26: Overview Of The Unit

    9 OVERVIEW OF THE UNIT 9.1 Disassembling the unit Door 1 To access to the compressor and electrical parts and hydraulic compartment WARNING Switch off all power — i.e. unit power supply — before removing doors 1 . Parts inside the unit may be hot. Push the grill to the left until it stops, then pull its right edge, so you can removed the grill.

  • Page 27: Electronic Control Box

    9.2.2 Hydraulic system diagram 12.2 Tw_in 12.1 Tw_out Coding Assembly unit Explaination Remaining air in the water circuit will be automatically removes Air purge valve air from the water circuit. Expansion vessel Balances water system pressure. (Expansion vessel volume: 8L) Circulation pump Circulates water in the water circuit.
  • Page 28 9.3.1 Main control board of indoor unit CN24 CN21 CN28 CN16 CN32 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 M1 M2 Port for remote switch CN21 POWER...
  • Page 29 9.3.2 Inverter module CN16 CN22 CN15 CN23 CN12 CN13 CN20 CN14 Assembly unit Coding Output port for +15V(CN20) Port for communication with PCB B (CN8) Compressor connection port W Compressor connection port V Compressor connection port U Input port P_out for IPM module Input port P_in for IPM module Input port for high pressure switch (CN23) Power for switching power supply(CN2)
  • Page 30 9.3.3 Main control board of unit CN41 CN26 CN24 CN36 CN21 CN18 CN31 CN29 CN10 CN35 CN11 CN28 CN37 CN20 CN22 CN27 V i n CN30 CN38 CN109 CN107 CN53 Coding Assembly unit Assembly unit Coding Power supply port for PCB B(CN41) Power supply port for hydro-box control board(CN21) Port for IC programming(CN11) Port for other temp.sensor(CN35)
  • Page 31 9.3.3 Filter board CN204 CN205 CN206 CN30 CN214 CN202 CN203 CN200 CN201 CN212 PCB C Coding Assembly unit Coding Assembly unit Power supply L3(L3) Power supply port for main control board(CN30) Power supply L2(L2) Power filtering L1(L1’) Power supply L1(L1) Power filtering L2(L2’) Power supply N(N) Power filtering L3(L3’)

  • Page 32: Water Piping

    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 Determine the calculated pre-pressure (Pg) for the calculate the pre-pressure of the expansion vessel: corresponding maximum water volume using the Pg(bar)=(H(m)/10+0.3) bar graph below. the expansion vessel equipped in the unit should adjust the pre- pressure also. Check that the total water volume in the entire water circuit is lower than this value.
  • Page 35 9.4.4 Water circuit anti-freeze protection WARNING Ice formation can cause damage to the hydraulic system. Due to the presence of glycol, corrosion of the system is As the outdoor unit may be exposed to sub-zero possible. Uninhibited glycol will turn acidic under the temperatures, care must be taken to prevent freezing of influence of oxygen.

  • Page 36: Adding Water

    INFORMATION 2. Freeze protection by freeze protection valves ▪ Protection against bursting: the glycol will prevent About freeze protection valves the piping from bursting, but NOT the liquid inside the When no glycol is added to the water, you can use piping from freezing.

  • Page 37: Water Piping Insulation

    NOTE During filling, it might not be possible to remove all air in the system. Remaining air will be removed through the automatic air purge valves during the first operating hours of the system. Topping up the water afterwards might be required.
  • Page 38 Coding Assembly unit Coding Assembly unit Outdoor unit P_d: DHW pump (field supply) Solar energy kit (field supply) SV2: 3-way valve (field supply) SV1: 3-way valve for domestic hot User interface water tank (field supply) Domestic hot water tank Room thermostat (field supply) Boiler (field supply) Booster heater P_s: Solar pump (field supply)
  • Page 39 NOTE Please use H07RN-F for the power wire, all the cable are connected 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 40 9.7.4 Specifications of standard wiring components Door 1: compressor compartment and electrical parts: XT1 BLACK BLACK BROWN BROWN GRAY GRAY BLUE BLUE OUTOOOR UNIT POWER SUPPLY 18kW 22kW 26kW 30kW Unit Maximum overcurrent protector(MOP) Wiring size(mm Stated values are maximum values (see electrical data for exact values). POWER SUPPLY NOTE 380VAC~3N...
  • Page 41 9.7.6 Connection for other components P_c P_o P_s P_d ASH1 ASH2 1OFF 2OFF IBH1 N 3ON DFT2 DFT1 3OFF CN11 CN30 Code Code Print Print Connect to Connect to Solar energy input ① signal Wired controller ① Room thermostat input ②...
  • Page 42 2) For room thermostat a. type 1(RT1) (High voltage) HEAT COOL POWER POWER POWER IN POWER IN Method C Method A Method B b. type 2(RT1) (Low voltage): in main control board of hydraulic module CN31 CL COM CL COM CL COM COOL HEAT...
  • Page 43 B.1 When unit detect voltage is 230VAC between H and N, unit turn on. B.2 When unit detect voltage is 0VAC between H and N, unit turn off. NOTE When ROOM THERMOSTAT is set to YES, the indoor temperature sensor Ta can’t be set to valid, unit running only according to T1.
  • Page 44 Voltage 220-240VAC Procedure Maximum running current(A) Connect the cable to the appropriate terminals as shown in the picture. Wiring size(mm 0.75 Fix the cable reliably. Control port signal type Type 2 5) For tank booster heater: Voltage 220-240VAC Maximum running current(A) TANK BOOST HEATER Wiring size(mm 0.75...
  • Page 45 10) For defrosting signal output: DFT2 DFT2 Voltage 220-240VAC Maximum running current(A) Wiring size(mm 0.75 FUSE Control port signal type Type 1 DEFROSTING PROMPT SIGNAL 11) For wired controller: COMMUNICATION “PLEASE USE SHIELDED WIRE AND EARTH THE WIRE.” MODBUS Wire type 5 wire shielded cable NOTE Wire section(mm...

  • Page 46: Start-Up And Configuration

    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 47: Dip Switch Settings Overview

    3.The automatic setting curve for heating mode The automatic setting curve is the ninth curve,the ninth curve can be set as following: T1S (T1S2) T1SETH1 T1SETH2 T4H1 T4H2 State:In the setting the wired controller, if T4H2<T4H1, then exchange their value; if T1SETH1<T1SETH2, then exchange their value.

  • Page 48: Initial Start-Up At Low Outdoor Ambient Temperature

    WARNING Switch off the power supply before opening the switch box service panel and making any changes to the DIP switch settings. Operate the switches with an insulated stick (such as a closed ball-point pen) to avoid electrostaric damage to the components.

  • Page 49: Powering Up The Unit

    10.5 Powering up the unit When power to the unit is turned on, "1%~99%" is displayed on the user interface during initialization. During this process the user interface cannot be operated. 10.6 Setting the pump speed The pump speed can be selected by adjusting the red knob on the pump. The notch point indicates pump speed.
  • Page 50 Code no. Fault Cause Remedy Mains undervoltage Power supply too low on mains Check mains voltage. side Mains overvoltage Power supply too high on Check mains voltage. mains side The pump is driven in reverse Check flow, install non-return Turbine operation (the fluid flows through the valves if necessary pump from the pressure to the...

  • Page 51: Field Settings

    10.7 Field settings The unit shall be configured by the installer to match the installation environment (outdoor climate, installed options, etc.) and user demand. A number of field settings are available. These settings are accessible and programmable through “FOR SERVICEMAN” in user interface. Powering on the unit When power on the unit, "1%~99%"...
  • Page 52 10.7.1 DHW MODE SETTING 2 COOL MODE SETTING 2.11 T4C2 25°C DHW = domestic hot water 2.12 ZONE1 C-EMISSION Go to MENU> FOR SERVICEMAN> 1.DHW MODE 2.13 ZONE2 C-EMISSION SETTING. Press OK. The following pages will be displayed: DHW MODE SETTING ADJUST 1.1 DHW MODE 10.7.3 HEAT MODE SETTING...
  • Page 53 If you only set WATER FLOW TEMP. to YES, or only set ROOM TEMP. to YES, The following pages will be displayed. only WATER FLOW TEMP. YES only ROOM TEMP. YES If you set WATER FLOW TEMP. and ROOM TEMP. to YES, meanwhile set DOUBLE ZONE to NON or YES, the following pages will be displayed.
  • Page 54 NOTE 9 SERVICE CALL SETTING PHONE NO. 0000000000000 MOBILE NO. 0000000000000 ROOM THERMOSTAT = NON, no room thermo- stat. ROOM THERMOSTAT = MODE SET, the wiring of room thermostat should follow method A. CONFIRM ADJUST ROOM THERMOSTAT=ONE ZONE, the wiring of Press ▼...
  • Page 55 Go to MENU> FOR SERVICEMAN> 11.TEST RUN. If you select AIR PURGE and OK is pressed, the following Press OK. The following page will be displayed: page will be displayed : 11 TEST RUN 11 TEST RUN Active the settings and Test run is on.
  • Page 56 Go to MENU> FOR SERVICEMAN> 12.SPECIAL FUNC- 11 TEST RUN TION. Test run is on. Heat mode is on. Before floor heating, if a large amount of water remains on Leaving water temperature is the floor, the floor may be warped or even rupture during 15°C.
  • Page 57 During preheating for floor, all the buttons except OK are 12.2 FLOOR DRYING UP invalid. If you want to turn off the preheating for floor, DO YOU WANT TO TURN OFF THE please press OK. The following page will be displayed: FLOOR DRYING UP FUNCTION? 12.1 PREHEATING FOR FLOOR Do you want to turn off the preheating...
  • Page 58 The AUTO RESTART function reapplies the user interface After setting the address, you need to press the “UNLOCK” key settings at the time of the power supply failure. If this function to confirm. is disabled, when power returns after a power supply failure, The address “FF”...
  • Page 59 10.7.16 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 60 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 61 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 62: Test Run And Final Checks

    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 63: Trouble Shooting

    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 64 Symptom 3: Pump is making noise (cavitation) POSSIBLE CAUSES CORRECTIVE ACTION There is air in the system. Purge air. • Check on the manometer that there is sufficient water pressure. The water pressure must be > 1 bar (water is cold). •...

  • Page 65: Operation Parameter

    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 66: Error Codes

    OPERATION PARAMETER OPERATION PARAMETER OPERATION PARAMETER FAN SPEED 600R/MIN TW_O PLATE W-OUTLET TEMP. 35°C T3 OUTDOOR EXCHARGE TEMP. 5°C T4 OUTDOOR AIR TEMP. 5°C IDU TARGET FREQUENCY 46Hz TW_I PLATE W-INLET TEMP. 30°C T2 PLATE F-OUT TEMP. 35°C TF MODULE TEMP. 55°C FREQUENCY LIMITED TYPE SUPPLY VOLTAGE...
  • Page 67 ERROR MALFUNCTION FAILURE CAUSE CODE OR PROTECTION AND CORRECTIVE ACTION 1. Check the resistance of the sensor The condenser outlet 2. The T3 sensor connector is loosen. Reconnect it. 3.The T3 sensor connector is wet or there is water in. remove refrigerant temperature sensor the water, make the connector dry.
  • Page 68 ERROR MALFUNCTION FAILURE CAUSE CODE OR PROTECTION AND CORRECTIVE ACTION 1.Check the resistance of the sensor. 2.The Tbt12 sensor connector is loosen,reconnect it. The balance tank low 3.The Tbt2 sensor connector is wet or there is water in,remove temp.sensor(Tbt2) fault the water ,make the connector dry.Add waterproof adhesive.
  • Page 69 ERROR MALFUNCTION FAILURE CAUSE CODE OR PROTECTION AND CORRECTIVE ACTION 1.wire doesn’t connect between main control board PCB B and main control board of indoor unit. connect the wire. Communication fault between main control board of hydraulic 2. Whether there is a high magnetic field or high power interfere, such module and main control board PCB B.
  • Page 70 ERROR MALFUNCTION FAILURE CAUSE CODE OR PROTECTION AND CORRECTIVE ACTION 1.Check the resistance of the sensor. 2. The Tw2 sensor connector is loosen. Reconnect it. Zone 2 water flow temp. sensor 3.The Tw2 sensor connector is wet or there is water in. (Tw2) fault.
  • Page 71 ERROR MALFUNCTION FAILURE CAUSE CODE OR PROTECTION AND CORRECTIVE ACTION 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.
  • Page 72 ERROR MALFUNCTION FAILURE CAUSE CODE OR PROTECTION AND CORRECTIVE ACTION 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.
  • Page 73 ERROR MALFUNCTION FAILURE CAUSE CODE OR PROTECTION AND CORRECTIVE ACTION DC compressor inverter module fault DC bus low voltage protection (from inverter module mostly when compressor running) DC bus high voltage protection 1. Check the Heat pump system pressure; from DC driver 2.

  • Page 74: Technical Specifications

    14 TECHNICAL SPECIFICATIONS 18kW 22kW 26kW 30kW Unit 380-415V 3N ～ 50Hz Power supply 10.6kW 13.8kW 14.5kW 12.5kW Rated input 21.6A 22.8A 16.8A 19.6A Rated Current Refer to the technical data Norminal capacity 1129x1558x528 Dimensions (W×H×D)[mm] 1220x1735x565 Packing (W×H×D)[mm] Plate heat exchanger Heat exchanger Electric heater 3.5L...

  • Page 75: Information Servicing

    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 76 b) Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not altered in such a way that the level of protection is affected. This shall include damage to cables, excessive number of connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc.
  • Page 77 Extreme care shall be taken not to overfill the refrigeration system. Prior to recharging the system it shall be pressure tested with OFN. The system shall be leak tested on completion of charging but prior to commissioning. A follow up leak test shall be carried out prior to leaving the site. 17) Decommissioning Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail.
  • Page 78 ANNEX A: Refrigerant cycle ANNEX A: Refrigerant cycle Cooling Heating Description Description Description Description Item Item Item Item Refrigerant inlet (liquid pipe) temp. sensor Refrigerant inlet (liquid pipe) temp. sensor Compressor Compressor Refrigerant outlet (gas pipe) temp. sensor Refrigerant outlet (gas pipe) temp. sensor 4-Way Valve 4-Way Valve Water outlet temp.
  • Page 79 16125300002403 V.C...
  • Page 80 kaisai.com...

This manual is also suitable for:

Khc-30ry3

Table of Contents