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Kaisai KOX230-12HFN32X Service Manual

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SPLIT TYPE AIR-CONDITIONER
Service Manual
Compact cassette
KCA4U-12HRG32X
KCA4U-18HRG32X
KOX230-12HFN32X
KOX330-18HFN32X

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Summary of Contents for Kaisai KOX230-12HFN32X

  • Page 1 SPLIT TYPE AIR-CONDITIONER Service Manual Compact cassette KCA4U-12HRG32X KOX230-12HFN32X KCA4U-18HRG32X KOX330-18HFN32X...

  • Page 3: Table Of Contents

    Table of Contents §. Safety Precautions Precautions Information servicing §. Model Reference & External Appearance Model Reference External Appearance §. Indoor Unit Indoor Unit - New Compact Four-way Cassette Type §. Outdoor Unit Dimensional Drawings Service Space Capacity Correction Factor for Height Difference Noise Criterion Curves Refrigerant Cycle Diagrams Electrical Wiring Diagrams...
  • Page 4 Table of Contents §. Troubleshooting Safety Caution General Troubleshooting Information Inquiry Outdoor Unit Point Check Function Error Diagnosis and Troubleshooting Without Error Code Quick Maintenance by Error Code Troubleshooting by Error Code Check Procedures Appendix Temperature Sensor Resistance Value Table for T1,T2,T3 and T4 (°C – K) Temperature Sensor Resistance Value Table for TP(for some units) (°C –...

  • Page 5: Safety Precautions

    Safety Precautions Contents Precautions ......................2 Information servicing(For flammable materials) ..........3...

  • Page 6: Precautions

    1. Precautions CAUTION To prevent personal injury, or property or unit damage, • While unpacking be careful of sharp edges around adhere to all precautionary measures and instructions the unit as well as the edges of the fins on the con- denser and evaporator.

  • Page 7: Information Servicing

    2. Information servicing(For to the surrounding space. Prior to work taking place, the area around the equipment is to be surveyed to make sure flammable materials) that there are no flammable hazards or ignition risks. NO SMOKING signs shall be displayed. Checks to the area Ventilated area •...

  • Page 8: Detection Of Flammable Refrigerants

    • that capacitors are discharged: this shall be done in a shall also take into account the effects of aging or safe manner to avoid possibility of sparking continual vibration from sources such as compressors or fans. • that there no live electrical components and wiring are exposed while charging, recovering or purging the 2.13 Detection of flammable refrigerants system;...

  • Page 9: Charging Procedures

    • The refrigerant charge shall be recovered into the • Before attempting the procedure ensure that: correct recovery cylinders. The system shall be flushed • mechanical handling equipment is available, if with OFN to render the unit safe. This process may required, for handling refrigerant cylinders;...
  • Page 10 • Empty recovery cylinders are evacuated and, if are unaware of the procedure taking place possible, cooled before recovery occurs. • The hose must be of sufficient length and diameter • The recovery equipment shall be in good working such that it will extend to at least 3 m beyond the order with a set of instructions concerning the outside of the building equipment that is at hand and shall be suitable for the...

  • Page 11: Model Reference

    Model Reference Contents Model Reference ....................2 External Appearance .....................3...
  • Page 12 Refer to the following table to determine the specific indoor and outdoor unit model number of your purchased equipment. Capacity Indoor Unit Model Universal Outdoor Unit Model Power Supply (Btu/h) KCA4U-12HRG32X KOX230-12HFN32X Compact 1Ph, 220-240V~, Cassette 50Hz KCA4U-18HRG32X KOX330-18HFN32X ...

  • Page 13: External Appearance

    2. External Appearance Indoor Unit Compact Four-way Cassette Outdoor Unit Outdoor Unit  Model Reference ...
  • Page 15 Indoor Unit-New Compact Cassette Contents Feature........................2 Dimensional Drawings ..................4 Part names ......................5 Service Place ......................6 Accessories ......................7 Capacity Tables ......................9 Noise Criterion Curves ..................15 Electrical Characteristics ..................16 Electrical Wiring Diagrams ..................16...

  • Page 16: Feature

    1. Feature Nearly 360° Air Discharge for the Highest Efficiency and Comfort • With near to 360° air discharge deliver even and powerful air flow, you will never be bothered by harsh, cold air draughts. Enjoy a real immersive air in open space. Individual vane control customized Everyone’s Own Comfort •...

  • Page 17: Fresh Air

    Twins/triplet/double twins System with Sync Control • The twins system connects 2 indoor units of the same type and capacity to 1 outdoor unit. • The triplet system connects 3 indoor units of the same type and capacity to 1 outdoor unit. •...

  • Page 18: Dimensional Drawings

    2. Dimensional Drawings  IDU-New Compact Cassette 4 ...

  • Page 19: Part Names

    3. Part names  IDU-New Compact Cassette 5 ...

  • Page 20: Service Place

    4. Service Place Length of A(mm/inch) Length of H(mm/inch) Length of B(mm/inch) 245/9.6 >290/11.4 600/23.6  IDU-New Compact Cassette 6 ...

  • Page 21: Accessories

    5. Accessories The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to in- stall the air conditioner. Improper installation may result in water leakage, electrical shock and fire, or equipment failure. Name Shape Quantity Installation paper template (some...
  • Page 22 Optional accessories: • There are two types of remote controls: wired and wireless. • Select a remote controller based on customer preferences and requirements and install in an appropriate place. • Refer to catalogues and technical literature for guidance on selecting a suitable remote controller. ...

  • Page 23: Capacity Tables

    8. Capacity Tables Cooling ID WB 16.0 18.0 19.0 22.0 INDOOR (℃) OUTDOOR AIRFLOW DB(℃) ID DB (CMH) 23.0 25.0 27.0 29.0 23.0 25.0 27.0 29.0 23.0 25.0 27.0 29.0 23.0 25.0 27.0 29.0 (℃) 3.71 3.72 3.72 3.72 3.90 3.96 3.96 3.96...
  • Page 24 3.78 3.78 3.81 3.84 3.96 3.96 3.96 3.96 4.06 4.06 4.06 4.06 4.31 4.31 4.31 4.31 0.71 0.81 0.98 1.00 0.57 0.66 0.74 0.84 0.50 0.59 0.68 0.76 0.34 0.42 0.50 0.58 0.68 0.68 0.68 0.68 0.68 0.68 0.68 0.68 0.68 0.68 0.68...
  • Page 25 ID WB 16.0 18.0 19.0 22.0 INDOOR (℃) OUTDOOR AIRFLOW DB(℃) ID DB (CMH) 23.0 25.0 27.0 29.0 23.0 25.0 27.0 29.0 23.0 25.0 27.0 29.0 23.0 25.0 27.0 29.0 (℃) 5.50 5.50 5.50 5.50 5.78 5.90 5.90 5.90 5.93 5.93 5.93 5.93...
  • Page 26 5.74 5.74 5.74 5.80 6.05 6.05 6.05 6.05 6.20 6.20 6.20 6.20 6.57 6.57 6.57 6.57 0.69 0.76 1.00 1.00 0.55 0.63 0.70 0.98 0.49 0.57 0.64 0.70 0.36 0.42 0.49 0.55 1.08 1.08 1.08 1.08 1.07 1.07 1.07 1.07 1.07 1.07 1.07...
  • Page 27 Heating [SI_Unit] HEATING PERFORMANCE AT INDOOR DRY BULB TEMPERATURE TC:TOTAL CAPACITY IN KILOWATTS (KW) PI:TOTAL POWER IN KILOWATTS (KW) INDOOR OUTDOOR AIRFLOW (CMH) Indoor Conditions (DB °C ) Indoor Conditions (DB °C ) DB(°C ) 16.0 20.0 22.0 24.0 16.0 20.0 22.0 24.0...
  • Page 28 [SI_Unit] HEATING PERFORMANCE AT INDOOR DRY BULB TEMPERATURE TC:TOTAL CAPACITY IN KILOWATTS (KW) PI:TOTAL POWER IN KILOWATTS (KW) INDOOR OUTDOOR AIRFLOW (CMH) Indoor Conditions (DB °C ) Indoor Conditions (DB °C ) DB(°C ) 16.0 20.0 22.0 24.0 16.0 20.0 22.0 24.0 -20.0...

  • Page 29: Noise Criterion Curves

    9. Noise Criterion Curves Indoor Unit 1.4m/4.59ft Notes: -Sound measured at 1.4m/4.59ft away from the noisiest location of the unit. -Data is valid at free field condition -Data is valid at nominal operation condition -Reference acoustic pressure OdB = 20µPa -Sound level will vary depending on a range of factors such as the construction -(acoustic absorption coefficient) of particular room in which the equipment is installed.

  • Page 30: Electrical Characteristics

    10. Electrical Characteristics Capacity (Btu/h) 12k~18k Phase 1-phase Frequency and Voltage 220-240V, 50Hz OUDOOR UNIT POWER Power Wiring (mm 3×1.5 Circuit Breaker/ Fuse (A) 25/20 Weak Electric Signal)(mm Indoor/Outdoor Connecting Wiring Strong Electric Signal(mm 4×1.5 NOTE: Electric auxiliary heating type circuit breaker/fuse need to add more than 10 A. 11.

  • Page 32: Wiring Diagrams

    1 .1 Some connectors introduce: A For remote control (ON-OFF) terminal port CN23 and short connector of JR6 1. Remove the short connector of JR6 when you use ON-OFF function; 2. When remote switch off (OPEN) ;the unit would be off; 3.
  • Page 33 B For ALARM terminal port CN33 1. Provide the terminal port to connect ALARM ,but no voltage of the terminal port , the power from the ALARM system (not from the unit ) 2. Although design voltage can support higher voltage ,but we strongly ask you connect the power less than 24V, current less than 0.5A 3.
  • Page 34 C. For new fresh motor terminal port CN8 1. Connect the fan motor to the port , no need care L/N of the motor ; 2. The output voltage is the power supply; 3. The fresh motor can not excess 200W or 1A , follow the smaller one ; 4.
  • Page 35 1 .2 Micro-Switch Introduce: A. Micro-switch SW1 is for selection of indoor fan stop temperature (TEL0) when it is in anti-cold wind action in heating mode. Range: 24 C, 15 C, 8 C, According to EEROM setting (reserved for special customizing). B.Micro-switch SW2/SW2-1 is for selection of indoor FAN ACTION if room temperature reaches the setponit and the compressor stops.
  • Page 36 C.Micro-switch SW2-2 is for selection of Breezeless function. Range: OFF, ON. D.Micro-switch SW3 is for selection of auto-restart function. Range: Active, inactive SWITCH FOR MODE-PRIOR SETTING STATE COOL HEAT HEAT COOL MODE Factory Setting E. Micro-switch SW5 is for setting mode priority of multi connection. Range: Heat, cool.
  • Page 37 FOR COOLING & HEATING OR COOLING ONLY SWITCH SETTING S TAT E C OOLIN G& C O O L I N G MO DE H EATIN G O N L Y F act o r y S ett i n g G.Micro-switch SW7 is for setting cooling &heating or cooling only.

  • Page 39: Outdoor Unit

    Outdoor Unit Contents Dimensional Drawings ..................2 Service Place ......................10 Capacity Correction Factor for Height Difference ..........11 Noise Criterion Curves ..................12 Refrigerant Cycle Diagrams ................13 Electrical Wiring Diagrams ..................14...

  • Page 40: Dimensional Drawings

    1. Dimensional Drawings Please check the corresponding dimensional drawing according to the panel plate. ODU Model Panel Plate KCA4U-12HRG32X X230 KCA4U-18HRG32X X330  Outdoor Unit 2 ...
  • Page 41 X330 Panel Plate  Outdoor Unit 3 ...
  • Page 42 X230 Panel Plate  Outdoor Unit 4 ...
  • Page 43 X430 Panel Plate  Outdoor Unit 5 ...
  • Page 44 Panel Plate X630  Outdoor Unit 6 ...
  • Page 45 Panel Plate D30  Outdoor Unit 7 ...
  • Page 46 Panel Plate E30  Outdoor Unit 8 ...
  • Page 47 Panel Plate 590  Outdoor Unit 9 ...

  • Page 48: Service Place

    2. Service Place  Outdoor Unit 10 ...

  • Page 49: Capacity Correction Factor For Height Difference

    3. Capacity Correction Factor for Height Difference Capacity(Btu/h) Pipe Length (m) Cooling 0.973 0.948 0.936 Indoor Upper than Outdoor 0.995 0.983 0.958 0.945 Height difference 1.000 0.988 0.963 0.950 H (m) 1.000 0.988 0.963 0.950 Outdoor Upper than Indoor 0.988 0.963 0.950 Heating...

  • Page 50: Noise Criterion Curves

    -Reference acoustic pressure OdB=20µPa -Sound level will vary depending on arrange off actors such as the construction (acoustic absorption coefficient) of particular room in which the equipment is installed. -The operating conditions are assumed to be standard. KOX230-12HFN32X KOX330-18HFN32X  Outdoor Unit 12...

  • Page 51: Refrigerant Cycle Diagrams

    (Diameter:ø) (m/ft) Model mm(inch) Additional Refrigerant Liquid Rated Max. Rated Max. KOX230-12HFN32X 9.52(3/8) 6.35(1/4) 5/16.4 25/82 10/32.8 12g/m (0.13oz/ft) KOX330-18HFN32X 12.7(1/2) 6.35(1/4) 5/16.4 30/98.4 20/65.6 For 12k, There is a muffler on the low pressure side only.  Outdoor Unit 13...

  • Page 52: Electrical Wiring Diagrams

    6. Electrical Wiring Diagrams ODU Model ODU Wiring Diagram ODU Main Printed Circuit Board KOX230-12HFN32X 17122000048121 16022000022493 KOX330-18HFN32X 17122000048121  Outdoor Unit 14 ...
  • Page 54 Outdoor unit printed circuit board diagram: 17122000044714, 17122000048121,17122000046453...
  • Page 55 Name Meaning Earth: connect to Ground N_in: connect to N-line (208-230V AC input) CN1A L_in: connect to L-line (208-230V AC input) CN16 S: connect to indoor unit communication HEAT1 CN17 connect to compressor heater, 208-230V AC when is ON 4-WAY CN60 connect to 4 way valve, 208-230V AC when is ON.

  • Page 57: Installation

    Installation Contents Installation Overview Location Selection Indoor Unit Installation Outdoor Unit Installation Drainage Pipe Installation Refrigerant Pipe Installation Vacuum Drying and Leakage Checking Additional Refrigerant Charge Engineering of Insulation Engineering of Electrical Wiring Test Operation...

  • Page 58: Installation Overview

    1. Installation Overview Indoor Unit Indoor Unit Install the indoor unit Install the outdoor unit Install the drainpipe Evacuate the refrigeration system Connect the wires Connect the refrigerant pipes Install the panel Perform a test run (only for cassette type) ...

  • Page 59: Location Selection

    DO NOT install the rows of series like following figure. 2. Location selection 2.1 Unit location selection can refer to installation manual. 2.2 DO NOT install the unit in the following locations: • Where oil drilling or fracking is taking place. •...

  • Page 60: Indoor Unit Installation

    3. Indoor Unit Installation(New Com- Length of A Length of H Length of B pact (mm/inch) (mm/inch) (mm/inch) Cassette Type 3.1 Service space for indoor unit 245/9.6 >290/11.4 600/23.6 2. Drill 4 holes 5cm (2”) deep at the ceiling hook positions in the internal ceiling.
  • Page 61 3.3 Compact Cassette Panel Installation Wall 3.3.1 Remove the front grille 1.Push one side of the grille screw cover then remove the Main body grid screw. 2. Push both of the tabs towards the middle simultaneously to unlock the hook on the grille. 24mm (0.9”) 3.
  • Page 62 2. Adjust the panel by turning it to the direction of arrow Loosen upper nut shown in figure below so that the ceiling opening is completely covered. Gap not allowed 2 Adjust lower nut If the unit is not hung correctly and a gap exists, the unit’s height must be adjusted to ensure proper function.

  • Page 63: Connection Diagram

    Connection diagram For panels without vane control module, the display board CN1 is connected to the main control board CN10, the motor cable is connected to the main control board CN14. For panels with vane control module, the display board CN1 is connected to the main control board CN10, the vane control motor cable is connected to the main control board CN66.

  • Page 64: Outdoor Unit Installation

    4. Outdoor unit installation 2. Connect a drain hose extension (not included) to the drain joint to redirect water from the unit during heating 4.1 Service space for outdoor unit mode. 4.3 Bolt pitch Panel Plate Unit 4.2 Install drain joint(Heat pump unit only) inch 11.93 17.80...
  • Page 65 4.4 Install Outdoor Unit Fix the outdoor unit with anchor bolts(M10) >60cm / 23.6” Fix with bolts Caution Since the gravity center of the unit is not at its physical center, so please be careful when lifting it with a sling. Never hold the inlet of the outdoor unit to prevent it from deforming.

  • Page 66: Drainage Pipe Installation

    For Vertical drainage pipe (The following table is for 5. Drainage Pipe Installation reference) Install the drainage pipe as shown below and take Reference measures against condensation. Improperly installation Allowable value of inner could lead to leakage and eventually wet furniture and maximum water Remark pipe...
  • Page 67 8. Blowhole setting • For the concentrated drainage pipe system, there should design a blowhole at the highest point of main pipe to ensure the condensate water discharge smoothly. • The air outlet shall face down to prevent dirt enter- ing pipe.

  • Page 68: Refrigerant Pipe Installation

    6. Refrigerant Pipe Installation Indoor unit/ Outdoor unit 6.1 Recommended copper pipe thickness Pipe Diameter Thickness(mm) 1/4" (6.35) 3/8" (9.52) 1/2" (12.7) 0.75 6m/20ft (＜36000Btu/h unit) 10m/32.8ft (≥36000Btu/h unit) 5/8" (15.9) 0.75 Indoor unit/ 3/4" (19) Outdoor unit 7/8" (22) 6m/20ft (＜36000Btu/h unit) 10m/32.8ft (≥36000Btu/h unit) 6.2 Maximum length and drop height...
  • Page 69 6.4 Refrigerant Piping with Twins/Triple/ Pipe diameter Flare dimension A (mm/inch) Double Twins Indoor Units Flare shape (inch(mm)) When installing multiple indoor units with a single outdoor 1/4" (6.35) 8.4/0.33 8.7/0.34 unit, ensure that the length of the refrigerant pipe and the drop height between the indoor and outdoor units meet 3/8"...

  • Page 70: Vacuum Drying And Leakage Checking

    A7 Duct&New compact Cassette type: Permitted length(Unit:m) 12k+12k Total piping 18k+18k L+L1+ L2 length 24k+24k 30k+30k Twins Farthest distance from line pipe L1, L2 branch farthest distance from the line L1-L2 pipe branch 12K+12K+12K Total piping L+L1+L2+ length L3+La 18K+18K+18K Piping length Triple Farthest distance...

  • Page 71: Additional Refrigerant Charge

    1 hour. If the indicator of vacuum gauge does not go up, 8. Additional Refrigerant Charge it is qualified. If going up, it indicates that there is moisture • After the vacuum drying process is carried out, the or leak source. additional refrigerant charge process need to be 7.3.2 Special vacuum drying performed.

  • Page 72: Engineering Of Insulation

    Additional Refrigerant Charge for Twins/ A6 Duct-30k (L1+L2+L-5)*24+780 Triple/Double Twins System A7 DUCT-30k (L1+L2+L-5)*24-240 Twins Triple A7 Duct-9k/12k (L1+L2+L3)*12+(L+La-5)*24-180 A7 Duct-18k (L1+L2+L3)*12+(L+La-5)*24-180 New compact (L1+L2+L3)*12+(L+La-5)*24+570 Cassette-12k New compact (L1+L2+L3)*12+(L+La-5)*24+500 Cassette-18k Double Twins Triple: (L1+L2+L3+L4)*12+(L+La+ A7 Duct-9k/12k Lb-5)*24-240 New compact (L1+L2+L3+L4)*12+(L+La+ Outdoor unit Indoor unit Lb-5)*24+660...
  • Page 73 4. Installation highlights of insulation construction Engineering of Electrical Wring • Gas pipe and liquid pipe shall be insulated sepa- 1. Highlights of electrical wiring installation rately, if the gas pipe and liquid pipe were insulated together; it will decrease the performance of air •...

  • Page 74: Test Operation

    2. Wiring for Twins/Triple/Double Twins System 11. Test Operation Air Condition Link-Circuit 1. The test operation must be carried out after the entire installation has been completed. INDOOR UNIT INDOOR UNIT INDOOR UNIT INDOOR UNIT L N S L N S L N S L N S 2.

  • Page 75: Drainage Test

    b. Make sure there is no vibration or abnormal noise during operation. c. Ensure the wind, noise, and water generated by the unit do not disturb your neighbors or pose a safety hazard. 4. Drainage Test a. Ensure the drainpipe flow smoothly. New buildings should perform this test before finishing the ceiling.

  • Page 77: Maintenance

    Maintenance Contents First Time Installation Check .................2 Refrigerant Recharge ....................4 Re-Installation .......................5 Indoor Unit ....................5 Outdoor Unit ....................7...

  • Page 78: First Time Installation Check

    1. First Time Installation Check Air and moisture trapped in the refrigerant system affects To prevent air and moisture from affecting the air the performance of the air conditioner by: conditioner’s performance, the indoor unit, as well as the pipes between the indoor and outdoor unit, must be be •...
  • Page 79 Procedure: • If the pressure successfully reaches -0.1 MPa Tighten the flare nuts of the indoor and outdoor (14.5 Psi), fully close the Handle Lo valve, then units, and confirm that both the 2- and 3-way valves cease vacuum pump operations. are closed.

  • Page 80: Refrigerant Recharge

    2. Refrigerant Recharge mA A Procedure: Close both 2- and 3-way valves. 3-way valves. Slightly connect the Handle Lo charge hose to the Operate the air conditioner in cooling mode to charge 3-way service port. the system with liquid refrigerant. Connect the charge hose to the valve at the bottom When the electronic scale displays the correct of the cylinder.

  • Page 81: Re-Installation

    3. Re-Installation Indoor Unit Collecting the refrigerant into the outdoor unit Procedure: Confirm that the 2- and 3-way valves are opened. Close the 3-way valve so that the gauge rests between 0.3 MPa (43.5 Psi) and 0.5 MPa (72.5 Psi). Connect the charge hose with the push pin of Handle Lo to the 3-way valve’s gas service port.
  • Page 82 Air purging with vacuum pump Procedure: • If the pressure successfully reaches -0.1 MPa Tighten the flare nuts of the indoor and outdoor (14.5 Psi), fully close the Handle Lo valve, then units, and confirm that both the 2- and 3-way valves cease vacuum pump operations.

  • Page 83: Outdoor Unit

    Outdoor Unit Evacuation for the whole system Procedure: Wait for 5 minutes then check whether the gauge Confirm that the 2- and 3-way valves are opened. needle moves after turning off the vacuum pump. If Connect the vacuum pump to the 3-way valve’s the gauge needle moves backward, check whether service port.

  • Page 84: Refrigerant Charging

    Refrigerant charging mA A Procedure: Close both 2- and 3-way valves. Fully open the Handle Lo manifold valve, 2- and 3-way valves. Slightly connect the Handle Lo charge hose to the 3-way service port. Operate the air conditioner in cooling mode to charge the system with liquid refrigerant.
  • Page 85 Product Features Contents Display Function ....................2 Safety Features ......................3 Basic Functions .......................4 Table ......................4 Abbreviation ....................5 Fan Mode ......................5 Cooling Mode ....................5 Heating Mode(Heat Pump Units) ..............6 Auto-mode ....................8 Drying Mode ....................8 Forced Operation Function ................8 Timer Function ....................9 3.10 Sleep Function ....................9 3.11 Auto-Restart Function ..................9 Optional Functions ....................10 Remote Controller Functions ................11...

  • Page 86: Display Function

    1. Display Function New 4-way Cassette Type, 1-way Cassette Type &New Compact Cassette Type Electric heating indicator Alarm indicator ( some models) When wireless control LED display feature is activated ( some models) Timer PRE-DEF indicator indicator (pre-heating/defrost) Operation indicator ...

  • Page 87: Safety Features

    2. Safety Features Compressor three-minute delay at restart Compressor functions are delayed for up to ten seconds upon the first startup of the unit, and are delayed for up to three minutes upon subsequent unit restarts. Automatic shutoff based on discharge temperature If the compressor discharge temperature exceeds a certain level for nine seconds, the compressor ceases operation.

  • Page 88: Basic Functions

    3. Basic Functions Table Cooling Mode&Heating mode Heating Mode Functions Outdoor Fan Control Defrosting Mode Anti-cold Air Function Case 1: Compressor Cases Case 2:T4 Case 1 Case 2 Case 1 Case 2 Frequency and T4 Model Functions Auto mode Cases Case 1 Case 2 Case 3...

  • Page 89: Abbreviation

    Abbreviation 120 minutes. • If the following conditions are satisfied, the Unit element abbreviations compressor ceases operation. • Calculated frequency(fb) is less than minimum limit Abbreviation Element frequency(FminC). Indoor room temperature • Compressor runs at FminC more than 10 minutes. Coil temperature of evaporator •...

  • Page 90: Heating Mode(Heat Pump Units)

    • For different outdoor units, the fan speeds are Note: HDIFTEMP2 is EEPROM setting parameter. It is different. 2°C(35.6°F) usually. Case 2: • If one of the following conditions is satisfied, not judge protective time. • The outdoor unit will be run at different fan speed according to T4.

  • Page 91: Outdoor Fan Control

    • Rise curve • T3 rises above 10°C/50°F.. • When T1-Tsc is higher than -1.5°C/-2.7°F,, fan The following conditions apply only to certain models, speed reduces to 80%(High); see table in section 3.1 for details. • When T1-Tsc is higher than 0°C/0°F, fan speed Case 1: reduces to 60%(Medium);...

  • Page 92: Auto-Mode

    Auto-mode Drying mode • This mode can be selected with the remote controller • In drying mode, AC operates the same as auto fan in and the temperature setting can be adjusted between cooling mode. 16°C~30°C. • All protections are activated and operate the same as Case 1: they do that in cooling mode.

  • Page 93: Sleep Function

    3.10 Sleep function • The sleep function is available in cooling, heating, or auto mode. • The operational process for sleep mode is as follows: • When cooling, the temperature rises 1°C/1.8°F (to not higher than 30°C/86°F) every hour. After 2 hours, the temperature stops rising and the indoor fan is fixed at low speed.

  • Page 94: Optional Functions

    4. Optional Functions Electrical energy consumption control function (Optional) 8°C Heating(Heat pump units) Press the “Gear” button on remote controller to enter the In heating mode, the temperature can be set to as low energy efficient mode in a sequence of following: as 8°C, preventing the indoor area from freezing if unoccupied during severe cold weather.

  • Page 95: Remote Controller Functions

    5. Remote Controller Functions Infrared Wireless Remote Controller (Standard for some units) 5.1.1 RG10B(B2)/BGEF Remote Controller Specifications Model RG10B(B2)/BGEF Rated Voltage 3.0V (Dry batteries R03/LR03×2) Reaching Distance Environment Temperature Range -5°C~60°C(23°F~140°F) Buttons and Functions MODE ON/OFF Turns the unit on or o ff. Scrolls through operation modes as follows: AUTO ...
  • Page 96 Remote LCD Screen Indicators Active clean/Self clean feature display Fresh feature display Sleep mode display Follow me feature display Wireless control feature display Low battery detection display(If flashes) Lights up when r emote sends signal to indoor unit Displays the curr ent mode, including: ECO display...
  • Page 97 (Standard for some units) 5.1. RG10L3(2HS)/BGEFU1 Remote Controller Specifications Model RG10L3(2HS)/BGEFU1 Rated Voltage 3.0V (Dry batteries R03/LR03×2) Reaching Distance Environment Temperature Range -5°C~60°C(23°F~140°F) Buttons and Functions ON/OFF MODE Turns the unit on or o ff. Scrolls through operation modes as follows: AUTO  COOL  TEMP Increases temperate in DRY ...
  • Page 98 Remote LCD Screen Indicators Active clean feature display Not applicable for this unit Fresh feature display Breeze Away display Sleep mode display Not applicable for this unit Follow me feature display Not applicable for this unit Wireless control feature display ECO intelligent eye display Low battery detection display(If flashes) Displays the curr ent...

  • Page 99: Lcd Wired Remote Controller

    LCD Wired Remote Controller 5.2.1 LCD Wired Remote Controller KJR-12B/DP(T) The KJR-12B/DP(T) wired remote controller is standard for Duct type and is optional for some types. i) Buttons and Functions MODE BUTTON ON/OFF BUTTON ・ Used to start/stop the air ・...

  • Page 100: Installation

    iii) Installation • Dimensions 120mm 21mm 13.1mm (4.7”) (0.8”) (0.5”) 19.5mm (0.7”) 51.1mm (2”) 120mm 85.5mm (4.7”) (3.3”) 50mm (1.9”) • Wiring diagram Refer to the following diagram to wire the wall-mounted remote control to the indoor unit. Wire Joint, 5p Infrared Pipe 5-Core Shield Cable Indoor Unit Display Board...
  • Page 101 Putty Trap Putty Putty Trap Trap Note: DO NOT allow water to enter the remote control. Use the trap and putty to seal the wires. • For exposed mounting, cut holes on four of the sides according to the picture below. Cut three holes Cut one holes for wire outlet...

  • Page 102: Lcd Wired Remote Controller

    5.2. LCD Wired Remote Controller KJR-120X/TFBG-E(Optional) The KJR-120X/TFBG-E wired remote controller is optional for some types. i) Buttons and Functions 1. POWER button 6. TIMER button Turn on of turn off the unit. To set timer on and timer off time of one day 7. FAN SPEED button MODE button Used to select the fan speed.
  • Page 103 ii) LCD Screen 1 Operation mode indication 8 Room temperature indication 2 Fan speed indication 9 Rotating indication 3 Temperature display 10 Follow Me function indication 4 Lock indication 11 Left-right swing indication 5 °C / °F indication (some models) 6 Main unit and secondary unit 12 Clock display indication...
  • Page 104 iii) Installation • Dimensions 20mm 120mm 46mm 60mm 3) Connection • Wire with the indoor unit: 60mm Wiring hole HA HB • 1: Indoor Unit. • 2: Notch the part for the wiring to pass through with a nipper tool. •...
  • Page 105 For some models: The wired controller connects to terminal board, terminal board connects to main control board. Main control board Terminal board CN40 ENC1 HA HB HA HB Wired controller 4) Address setting Unit1 Unit2 Unit16 HA HB HA HB HA HB HA HB Wired controller...

  • Page 106: Centralized Controller

    Centralized Controller 1) Connection For Light commercial air conditioner with XYE port, it can be directly connected to Centralized Controller (CCM03, CCM09). 2) Address setting When setting the address, please make sure the unit is powered off. The address can be set from 0 to 63 by the switch. Turn on the unit, then the address will be effective.

  • Page 107: Troubleshooting

    Troubleshooting Contents Safety Caution .......................3 General Troubleshooting ..................4 Information Inquiry ....................6 Error Diagnosis and Troubleshooting Without Error Code .........9 Remote maintenance ..................9 Field maintenance ..................10 Quick Maintenance by Error Code ..............15 Troubleshooting by Error Code ................16 EH 00/EH 0A / EC 51 (EEPROM parameter error Diagnosis and Solution) ..16 EL 01 (Indoor and outdoor unit communication error Diagnosis and Solution) 17 EH 03 / EH 31/EH 32/EC 07 (Fan speed is operating outside of the normal range Diagnosis and Solution) ................19...
  • Page 108 Troubleshooting Contents PC 04 (Inverter Compressor Drive Error Diagnosis and Solution) ....27 6.10 PC 03 (High Pressure Protection or low Pressure Protection Diagnosis and Solution) ......................28 6.11 PC 02 (Top temperature protection of compressor or High temperature protection of IPM module Diagnosis and Solution) ........31 6.12 PC 0L (Low ambient temperature protection) ..........32 6.13 EC 0d (Outdoor unit malfunction Diagnosis and Solution) ......32 6.14 EH 0b (Communication error between display board and main board Diagnosis...

  • Page 109: Safety Caution

    1. Safety Caution WARNING Be sure to turn off all power supplies or disconnect all wires to avoid electric shock. While checking indoor/outdoor PCB, please equip oneself with antistatic gloves or wrist strap to avoid damage to the board. WARNING Electricity remains in capacitors even when the power supply is off.

  • Page 110: General Troubleshooting

    2. General Troubleshooting Error Display (Indoor Unit) When the indoor unit encounters a recognized error, the operation lamp will flash in a corresponding series, the timer lamp may turn on or begin flashing, and an error code will be displayed. These error codes are described in the following table: Operation Timer...

  • Page 111: Error Display On Two Way Communication Wired Controller

    7 times FLASH IPM malfunction or IGBT over-strong current protection TS25 PC 00 2 times FLASH Over voltage or over low voltage protection TS26 PC 01 Top temperature protection of compressor or High temperature 3 times FLASH TS31 PC 02 protection of IPM module 5 times FLASH...

  • Page 112: Information Inquiry

    3. Information Inquiry • To enter engineer mode, in power-on or standby mode, and in non-locked state, press the key combination “ON/OFF + Air Speed” for 7s: • After entering the engineer mode, the remote control will display icons of “Auto, Cool, Dry, Heat”, and the Battery icon;...
  • Page 113 rror code of engineer mode Display Error Information EH 00/EH 0A Indoor unit EEPROM parameter error Indoor / outdoor unit communication error EL 01 Communication error between indoor unit and indoor external fan module EH A Parameters error of indoor external fan EH 30 Upper indoor fan speed is operating outside of the normal range(for new console type) EH 31...
  • Page 114 IPM malfunction or IGBT over-strong current protection PC 00 Over low voltage protection PC 10 Over voltage protection PC 11 DC voltage protection PC 12 Top temperature protection of compressor or High temperature protection of IPM module pc 02 Communication error between outdoor main chip and compressor driven chip PC 40 Current Input detection protection Pc 41...

  • Page 115: Error Diagnosis And Troubleshooting Without Error Code

    4. Error Diagnosis and Troubleshooting Without Error Code WARNING Be sure to turn off unit before any maintenance to prevent damage or injury. Remote maintenance SUGGESTION: When troubles occur, please check the following points with customers before field maintenance. Problem Solution Unit will not start TS11 - TS12...

  • Page 116: Field Maintenance

    Field maintenance Problem Solution Unit will not start TS13 - TS14 Compressor will not start but fans run TS13 - TS14 Compressor and condenser (outdoor) fan will not start TS13 - TS14 Evaporator (indoor) fan will not start TS13 - TS14 Condenser (Outdoor) fan will not start TS13 - TS14 Unit runs, but shortly stops...
  • Page 117 1.Remote Maintenance Electrical Circuit Refrigerant Circuit Possible causes of trouble Unit will not start ☆ ☆ ☆ ☆ The power switch is on but fans will not start ☆ ☆ ☆ The temperature on the display board cannot be set ☆...
  • Page 118 1.Remote Maintenance Others Possible causes of trouble Unit will not start The power switch is on but fans will not start ☆ The temperature on the display board cannot be set Unit is on but the wind is not cold(hot) Unit runs, but shortly stops The unit starts up and stops frequently ☆...
  • Page 119 2.Field Maintenance Refrigerant Circuit Others Possible causes of trouble Unit will not start Compressor will not start but fans run ☆ Compressor and condenser (outdoor) fan will not start Evaporator (indoor) fan will not start Condenser (Outdoor) fan will not start Unit runs, but shortly stops ☆...
  • Page 120 2.Field Maintenance Electrical Circuit Possible causes of trouble Unit will not start ☆ ☆ ☆ ☆ ☆ ☆ Compressor will not start but fans run ☆ ☆ ☆ ☆ ☆ Compressor and condenser (outdoor) fan will not start ☆ ☆ ☆...

  • Page 121: Quick Maintenance By Error Code

    5. Quick Maintenance by Error Code If you do not have the time to test which specific parts are faulty, you can directly change the required parts according the error code. You can find the parts to replace by error code in the following table. Error Code Part requiring replacement...

  • Page 122: Troubleshooting By Error Code

    6. Troubleshooting by Error Code EH 00/ EH 0A / EC 51 (EEPROM Parameter Error Diagnosis and Solution) Description: Indoor or outdoor PCB main chip does not receive feedback from EEPROM chip. Recommended parts to prepare: • Indoor PCB • Outdoor PCB Troubleshooting and repair: Shut off the power supply and turn it on 2 minutes later.

  • Page 123: El 01 (Indoor And Outdoor Unit Communication Error Diagnosis And Solution)

    EL 01 (Indoor and Outdoor Unit Communication Error Diagnosis and Solution) Description: Indoor unit can not communicate with outdoor unit Recommended parts to prepare: • Indoor PCB • Outdoor PCB • Reactor Troubleshooting and repair: Power off, then restart the unit after 2 minutes.
  • Page 124 Remarks: • Use a multimeter to test the DC voltage between 2 port(or S or L2 port) and 3 port(or N or S port) of outdoor unit. The red pin of multimeter connects with 2 port(or S or L2 port) while the black pin is for 3 port(or N or S port) . •...

  • Page 125: Eh 03 / Eh 31/Eh 32/Ec

    EH 03 / EH 31/EH 32/ EC 07 (Fan Speed Is Operating Outside of Normal Range Diagnosis and Solution) Description: When indoor / outdoor fan speed keeps too low or too high for a certain time, the unit ceases operation and the LED displays the failure.
  • Page 126 Index: 1. Indoor or Outdoor DC Fan Motor(control chip is in fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must has problems and need to be replaced. Color Signal Voltage...
  • Page 127 Signal Voltage +15V 0~6V 0~15V 3. Outdoor DC Fan Motor (control chip is in outdoor PCB) Release the UVW connector. Measure the resistance of U-V, U-W, V-W. If the resistance is not equal to each other, the fan motor must has problems and need to be replaced. otherwise the PCB must has problems and need to be replaced. ...

  • Page 128: Eh 60/Eh 61/Ec 53/Ec 52/Ec 54 (Open Circuit Or Short Circuit Of Temperature Sensor Diagnosis And Solution)

    EH 60/EH 61/EC 53/EC 52/EC 54 (Open Circuit or Short Circuit of Temperature Sensor Diagnosis and Solution) Description: If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure. Recommended parts to prepare: • Connection wires •...

  • Page 129: El 0C (Refrigerant Leakage Detection Diagnosis And Solution)

    EL 0C (Refrigerant Leakage Detection Diagnosis and Solution) Description: Define the evaporator coil temperature T2 of the compressor just starts running as Tcool. In the beginning 5 minutes after the compressor starts up, if T2 < Tcool-1°C(1.8°F) does not keep continuous 4 seconds and compressor running frequency higher than 50Hz does not keep for 3 minutes, and this situation happens 3 times, the display area will show “EL 0C”...

  • Page 130: Eh 0E(Water-Level Alarm Malfunction Diagnosis And Solution)

    EH 0E(Water-Level Alarm Malfunction Diagnosis and Solution) Description: If the sampling voltage is not 5V, the LED displays the failure code. Recommended parts to prepare: • Connection wires • Water-level switch • Water pump • Indoor PCB Shut off the power supply and Shut off the power supply and turn it on 2 minutes later.

  • Page 131: Pc 00(Ipm Malfunction Or Igbt Over-Strong Current Protection Diagnosis And Solution)

    PC 00(IPM malfunction or IGBT over-strong current protection Diagnosis and Solution) Description: When the voltage signal the IPM sends to the compressor drive chip is abnormal, the display LED shows “PC 00” and the AC turn off. Recommended parts to prepare: •...

  • Page 132: Pc 01(Over Voltage Or Too Low Voltage Protection Diagnosis And Solution)

    PC 01(Over voltage or too low voltage protection Diagnosis and Solution) Description: Abnormal increases or decreases in voltage are detected by checking the specified voltage detection circuit. Recommended parts to prepare: • Power supply wires • IPM module board • PCB •...

  • Page 133: Pc 04(Inverter Compressor Drive Error Diagnosis And Solution)

    PC 04(Inverter compressor drive error Diagnosis and Solution) Description: An abnormal inverter compressor drive is detected by a special detection circuit, including communication signal detection, voltage detection, compressor rotation speed signal detection and so on. Recommended parts to prepare: • Connection wires •...

  • Page 134: Pc 03(High Pressure Protection Or Low Pressure Protection Diagnosis And Solution)

    6.10 PC 03(High pressure protection or Low Pressure Protection Diagnosis and Solution) Description: Outdoor pressure switch cut off the system because high pressure is higher than 4.4 MPa or outdoor pressure switch cut off the system because low pressure is lower than 0.13 MPa, the LED displays the failure code. Recommended parts to prepare: •...
  • Page 135 High pressure protection High pressure protection Are the high pressure switch Are the high pressure switch Connect high pressure switch and Connect high pressure switch and and main control boar wired and main control boar wired mian control board mian control board correctly? correctly? Is the high pressure...
  • Page 136 Low pressure protection Low pressure protection Are the low pressure protector Are the low pressure protector Reconnect the low pressure protector Reconnect the low pressure protector and main control board wired and main control board wired and main control board and main control board properly? properly?

  • Page 137: Pc 02(Top Temperature Protection Of Compressor Or High Temperature Protection Of Ipm Module Diagnosis And Solution)

    6.11 PC 02(Top temperature protection of compressor or High temperature protection of IPM module diagnosis and solution) Description: For some models with overload protection, If the sampling voltage is not 5V, the LED will display the failure. If the temperature of IPM module is higher than a certain value, the LED displays the failure code. Recommended parts to prepare: •...

  • Page 138: Pc 0L (Low Ambient Temperature Protection)

    Check the fastening screws on the PCB and IPM radiator. Replace the outdoor Are they fixed tightly? control PCB. Tighten the screws and apply silicon grease. 6.12 PC 0L (Low ambient temperature protection) Description: It is a protection function. When compressor is off, outdoor ambient temperature(T4) is lower than -35 for 10s, the AC will stop and display the failure code.

  • Page 139: Eh 0B(Communication Error Between Display Board And Main Board Diagnosis And Solution)

    6.14 EH 0b(Communication error between display board and main board diagnosis and solution) Description: Indoor PCB does not receive feedback from the display board. Recommended parts to prepare: • Communication wire • Indoor PCB • Display board Troubleshooting and repair: Power off, then restart the unit 2 minutes later Is it still displaying the error code?

  • Page 140: Eh B3 (Communication Error Between Wired Controller And Indoor Unit Diagnosis And Solution)

    6.15 EH b3 (Communication error between wired controller and indoor unit Diagnosis and Solution Description: If Indoor PCB does not receive feedback from wired controller, the error displays on the wired controller Recommended parts to prepare: • Connection wires • Indoor PCB •...

  • Page 141: Eh Ba

    6.16 EH bA(Communication malfunction between external fan module and indoor unit)/ EH 3A(External fan DC bus voltage is too low protection)/ EH 3b(External fan DC bus voltage is too high fault) diagnosis and solution Description: Indoor unit does not receive the feedback from external fan module during 150 seconds. or Indoor unit receives abnormal increases or decreases in voltage from external fan module.

  • Page 142: Fh 07(Communication Malfunction Between Indoor Unit And Auto-Lifting Panel)

    6.17 FH 07(Communication malfunction between indoor unit and auto-lifting panel) diagnosis and solution Description: Indoor PCB does not get the feedback from the PCB of auto-lifting panel. Recommended parts to prepare: • Connection wires • PCB of auto-lifting panel • Indoor PCB Troubleshooting and repair: Communication failure between indoor unit and...

  • Page 143: Check Procedures

    8. Check Procedures 8.1 Temperature Sensor Check WARNING Be sure to turn off all power supplies or disconnect all wires to avoid electric shock. Operate after compressor and coil have returned to normal temperature in case of injury. 1. Disconnect the temperature sensor from PCB (Refer to Chapter 5&6. Indoor&Outdoor Unit Disassembly). 2.
  • Page 144 Resistance KSN98D64UFZ3 KSN140D21UFZ KTM240D43UKT KTM240D57UMT Value Blue-Red Blue-Black 2.7Ω 1.28Ω 1.03Ω 0.62Ω Red-Black KTQ420D1UMU ATQ420D1SN5A1 Resistance KTF250D22UMT KTF310D43UMT KSN140D58UFZ EAPQ420D1UMUA Value ATF235D22TMT ATF310D43TMT EAPQ440D1UMUA KTQ420D41SN5A1 Blue-Red Blue-Black 0.75Ω 1.86Ω 0.65Ω 0.37Ω Red-Black Resistance Value ATM150D23TFZ ATH307CDRC8DUL KSK103D33UEZ3 KTM240D46UKT2 ASN140D35TFZ Blue-Red Blue-Black 1.72Ω...

  • Page 145: Ipm Continuity Check

    8.3 IPM Continuity Check WARNING Electricity remains in capacitors even when the power supply is off. Ensure the capacitors are fully discharged before troubleshooting. 1. Turn off outdoor unit and disconnect power supply. 2. Discharge electrolytic capacitors and ensure all energy-storage unit has been discharged. 3.
  • Page 146 Note: The picture and the value are only for reference, actual condition and specific value may vary. 8.4 Normal voltage of P and N 208-240V(1-phase,3-phase) 380-415V(3-phase) In standby around 310VDC around 530VDC In operation >310VDC >450VDC Troubleshooting  ...
  • Page 147 8.5 4-way Valve Check(Heat pump units) 1. Power on, use a digital tester to measure the voltage, when the unit operates in cooling, it is 0V. When the unit operates in heating, it is about 230VAC. If the value of the voltage is not in the range, the PCB must have problems and need to be replaced. 2 Turn off the power, use a digital tester to measure the resistance.
  • Page 148 8.6 EEV Check(for some models) WARNING Electricity remains in capacitors even when the power supply is off. Ensure the capacitors are fully discharged before troubleshooting. 1. Disconnect the connector from outdoor PCB. 2. Measure the resistance value of each winding using a multi-meter. 3.
  • Page 149 Appendix Contents Temperature Sensor Resistance Value Table for T1, T2, T3, and T4 (°C – K) ..2 Temperature Sensor Resistance Value Table for TP (for some units)(°C --K) ..3 iii) Pressure On Service Port ..................4...
  • Page 150 i) Temperature Sensor Resistance Value Table for T1,T2,T3 and T4 (°C – K) °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249 0.61148 101.517 11.5 2.19073 0.59386 96.3423 10.9731...
  • Page 151 ii) Temperature Sensor Resistance Value Table for TP(for some units) (°C --K) °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm...

  • Page 152: Pressure On Service Port

    iii) Pressure On Service Port Cooling chart(R410A): ODU(DB) °F(°C) 0(-17) 5(-15) 95 (35) (-9.44) (7.22) (23.89) (29.44) (40.56) (46.11) (48.89) IDU(DB/WB) 70/59 (21.11/15) 10.1 10.6 75/63 (23.89/17.22) 10.7 11.2 80/67 (26.67/19.44) 11.2 11.9 90/73 (32.22/22.78) 10.5 10.3 10.0 10.6 12.4 13.0 70/59 (21.11/15) 75/63 (23.89/17.22)
  • Page 153 Heating chart(R410A): ODU(DB/WB) 57/53 47/43 37/33 27/23 17/13 (-8.33/- 0/-2 -17/-18 °F(°C) (13.89/11.67) (8.33/6.11) (2.78/0.56) (-2.78/-5) 10.56) (-17/-19) (-27/-28) IDU(DB) 55(12.78) 30.3 28.5 25.3 22.8 20.8 18.5 16.5 65(18.33) 32.5 30.0 26.6 25.4 23.3 20.5 19.0 75(23.89) 33.8 31.5 27.8 26.3 24.9 21.5...
  • Page 154 Cooling chart(R22): ODU(DB) °F(°C) 0(-17) 5(-15) 95 (35) (-9.44) (7.22) (23.89) (29.44) (40.56) (46.11) (48.89) IDU(DB/WB) 70/59 (21.11/15) 75/63 (23.89/17.22) 80/67 (26.67/19.44) 90/73 (32.22/22.78) 70/59 (21.11/15) 75/63 (23.89/17.22) 80/67 (26.67/19.44) 90/73 (32.22/22.78) 70/59 (21.11/15) 0.40 0.41 0.46 0.50 0.51 0.49 0.51 0.54 0.63...
  • Page 155 Heating chart(R22): ODU(DB/WB) 57/53 47/43 37/33 27/23 17/13 (-8.33/- 0/-2 -17/-18 °F(°C) (13.89/11.67) (8.33/6.11) (2.78/0.56) (-2.78/-5) 10.56) (-17/-19) (-27/-28) IDU(DB) 55(12.78) 18.9 17.8 15.8 14.3 13.0 11.6 10.3 65(18.33) 20.3 18.8 16.6 15.9 14.6 12.8 11.9 75(23.89) 21.1 19.7 17.3 16.4 15.6 13.4...
  • Page 156 Cooling chart(R32): ODU(DB) °F(°C) 0(-17) 5(-15) 95 (35) (-9.44) (7.22) (23.89) (29.44) (40.56) (46.11) (48.89) IDU(DB/WB) 70/59 (21.11/15) 10.3 10.8 75/63 (23.89/17.22) 10.9 11.4 80/67 (26.67/19.44) 11.4 12.1 90/73 (32.22/22.78) 10.7 10.5 10.2 10.8 12.6 13.3 70/59 (21.11/15) 75/63 (23.89/17.22) 80/67 (26.67/19.44) 90/73 (32.22/22.78) 70/59 (21.11/15)
  • Page 157 Heating chart(R32): ODU(DB/WB) 57/53 47/43 37/33 27/23 17/13 (-8.33/- 0/-2 -17/-18 °F(°C) (13.89/11.67) (8.33/6.11) (2.78/0.56) (-2.78/-5) 10.56) (-17/-19) (-27/-28) IDU(DB) 55(12.78) 30.9 29.1 25.8 23.3 21.2 18.9 16.8 65(18.33) 33.2 30.6 27.1 25.9 23.8 20.9 19.4 75(23.89) 34.5 32.1 28.4 26.8 25.4 21.9...
  • Page 158 System Pressure Table-R22 Pressure Temperature Pressure Temperature °C °F °C °F 14.5 -41.091 -41.964 1600 41.748 107.146 21.75 -32.077 -25.739 1650 16.5 239.25 43.029 109.452 -25.177 -13.319 1700 246.5 44.281 111.706 36.25 -19.508 -3.114 1750 17.5 253.75 45.506 113.911 43.5 -14.654 5.623 1800...
  • Page 159 System Pressure Table-R410A Pressure Temperature Pressure Temperature °C °F °C °F 14.5 -51.623 -60.921 2350 23.5 340.75 38.817 101.871 21.75 -43.327 -45.989 2400 39.68 103.424 -36.992 -34.586 2450 24.5 355.25 40.531 104.956 36.25 -31.795 -25.231 2500 362.5 41.368 106.462 43.5 -27.351 -17.232 2550...
  • Page 160 System Pressure Table-R32 Pressure Temperature Pressure Temperature °C °F °C °F 14.5 -51.909 -61.436 1850 18.5 268.25 28.425 83.165 21.75 -43.635 -46.543 1900 275.5 29.447 85.005 -37.323 -35.181 1950 19.5 282.75 30.448 86.806 36.25 -32.15 -25.87 2000 31.431 88.576 43.5 -27.731 -17.916 2050...
  • Page 162 kaisai.com...

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