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York IDM030B21E Series Service Manual

Inverter-driven multi-split system heat pump air conditioners
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SERVICE MANUAL
INVERTER-DRIVEN MULTI-SPLIT SYSTEM
HEAT PUMP AIR CONDITIONERS
Service Manual
< Indoor Units >
● Ducted Medium Static (EconoFresh) Type
(H,Y,C)IDM030B21E
(H,Y,C)IDM036B21E
(H,Y,C)IDM048B21E
with EF-456NE
SM-16005

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Summary of Contents for York IDM030B21E Series

  • Page 1 SERVICE MANUAL INVERTER-DRIVEN MULTI-SPLIT SYSTEM HEAT PUMP AIR CONDITIONERS Service Manual < Indoor Units > ● Ducted Medium Static (EconoFresh) Type (H,Y,C)IDM030B21E (H,Y,C)IDM036B21E (H,Y,C)IDM048B21E with EF-456NE SM-16005...
  • Page 3 Important Notice ● Johnson Controls Inc. pursues a policy of continuing improvement in design and performance in its products. As such, Johnson Controls Inc. reserves the right to make changes at any time without prior notice. ● Johnson Controls Inc. cannot anticipate every possible circumstance that might involve a potential hazard.
  • Page 4 Product Inspection upon Arrival 1. Upon receiving this product, inspect it for any damages incurred in transit. Claims for damage, either apparent or concealed, should be filed immediately with the shipping company. 2. Check the model number, electrical characteristics (power supply, voltage, and frequency rating), and any accessories to determine if they agree with the purchase order.
  • Page 5 1. Introduction This Service Manual concentrates on the heat pump air conditioning units. Read this manual carefully before performing service. This manual should be considered as a permanent part of the air conditioning equipment and should remain with the air conditioning equipment. (Transportation/Installation Work) >...
  • Page 6 Take the following precautions to reduce the risk of property damage. ● Be careful that moisture, dust, or variant refrigerant compounds not enter the refrigerant cycle during installation work. Foreign matter could damage internal components or cause blockages. ● If air filters are required on this unit, do not operate the unit without the air filter set in place. If the air filter is not installed, dust may accumulate and breakdown may result.
  • Page 7 Installation Precautions To reduce the risk of serious injury or death, the following installation precautions must be followed. ● When installing the unit into… ◦ A wall: Make sure the wall is strong enough to hold the unit’s weight. It may be necessary to construct a strong wood or metal frame to provide added support.
  • Page 8 Refrigerant Precautions To reduce the risk of serious injury or death, the following refrigerant precautions must be followed. ● As originally manufactured, this unit contains refrigerant installed by Johnson Controls. Johnson Controls uses only refrigerants that have been approved for use in the unit’s intended home country or market.
  • Page 9 Electrical Precautions Take the following precautions to reduce the risk of electric shock, fire or explosion resulting in serious injury or death. ● Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring diagram and these instructions when wiring. Improper connections and inadequate grounding can cause serious injury or death.
  • Page 10 viii SM-16005-rev.2...

  • Page 11: Table Of Contents

    - Table of Contents - 1. Installation ..........................1-1 1.1 Outdoor Unit ............................1-2 1.2 Change-Over Box..........................1-2 1.3 Indoor Unit ............................1-2 1.4 Control Device ..........................1-3 1.4.1 Wired Controller: CIW01 ......................1-3 1.4.2 Simplified Wired Controller: CIS01 ..................1-3 1.4.3 Wireless Controller: CIR01 .....................1-3 1.4.4 Mini Central Controller: CCM01 .....................1-3 1.4.5 Large Central Controller: CCL01....................1-3...
  • Page 12 - Table of Contents - 3. Troubleshooting ........................3-1 3.1 Initial Troubleshooting ........................3-2 3.1.1 Checking Electrical Wiring and Power Supply ...............3-2 3.1.2 Location of Printed Circuit Boards (PCBs) ................3-6 3.1.3 Checking Rotary Switch and DIP Switch Settings ..............3-7 3.1.4 Checking Wired Controller .....................3-9 3.1.5 Checking Using 7-Segment Display ..................3-15 3.1.6 Checking Alarm Code History ....................3-15 3.1.7 Emergency Operation ......................3-15...
  • Page 13 - Table of Contents - 5. External Input/Output and Function Setting ................5-1 5.1 DIP Switch Settings of Outdoor Unit ....................5-2 5.2 High Static Pressure Setting (DSW5-No.5: ON) ................5-2 5.3 External Input/Output and Function Setting Mode for Outdoor Unit ..........5-2 5.4 External Input/Output and Function Setting Mode for Indoor Unit ..........5-3 5.4.1 External Input and Output Settings ..................5-5 5.4.1.1 Remote Control ON/OFF Function ...................5-6...

  • Page 15: Installation

    INSTALLATION 1. Installation SM-16005-rev.2...

  • Page 16: Outdoor Unit

    INSTALLATION 1.1 Outdoor Unit Refer to the Installation Manual for Outdoor Unit. 1.2 Change-Over Box Refer to the Installation Manual for Change-Over Box. 1.3 Indoor Unit Refer to the Installation Manual for Ducted Medium Static (EconoFresh) and EconoFresh Kit. SM-16005-rev.2...

  • Page 17: Control Device

    INSTALLATION 1.4 Control Device 1.4.1 Wired Controller: CIW01 1.4.2 Simplified Wired Controller: CIS01 1.4.3 Wireless Controller: CIR01 1.4.4 Mini Central Controller: CCM01 1.4.5 Large Central Controller: CCL01 1.4.6 Computerized Central Controller Management Software: CCCS01 1.4.7 Computerized Central Controller Software / Operation Ratio for CCCS01 1.4.8 Computerized Central Controller Adapter: CCCA01 1.4.9...

  • Page 18: Optional Parts

    INSTALLATION 1.5 Optional Parts 1.5.1 Optional Air Filter: KW-PP456E 1.5.2 Relay and 3 Pin Connector Kit: PSC-5RA 1.5.3 Remote Sensor: THM-R2A 1.5.4 3P Connector Cable: PCC-1A For more information of the above Optional Parts, please refer to the Installation Manuals for each product. SM-16005-rev.2...

  • Page 19: Operation

    OPERATION 2. Operation SM-16005-rev.2...

  • Page 20: Indoor Unit

    OPERATION 2.1 Indoor Unit Refer to the Operation Manual for Ducted Medium Static (EconoFresh). SM-16005-rev.2...

  • Page 21: Control Device

    OPERATION 2.2 Control Device 2.2.1 Wired Controller: CIW01 2.2.2 Simplified Wired Controller: CIS01 2.2.3 Mini Central Controller: CCM01 2.2.4 Large Central Controller: CCL01 2.2.5 Computerized Central Controller Management Software: CCCS01 2.2.6 Computerized Central Controller Software / Operation Ratio for CCCS01 2.2.7 Infrared (IR) Receiver Kit: CWDIRK01 For more information of the above Control Devices, please refer to the Operation Manuals for each product.

  • Page 23: Troubleshooting

    TROUBLESHOOTING 3. Troubleshooting SM-16005-rev.2...

  • Page 24: Initial Troubleshooting

    TROUBLESHOOTING Initial Troubleshooting 3.1.1 Checking Electrical Wiring and Power Supply Check the following items for any abnormalities in the activation of the system. Check Situation Check Method Is any power supply breaker or Check the voltage (secondary side) of the breaker and also fuse open? check the continuity of the fuse with a tester.
  • Page 25 TROUBLESHOOTING ● For Outdoor Unit Refer to the Service Manual for Outdoor Unit. ● For Indoor Units The electrical wiring capacity of the outdoor unit is according to the “Installation and Maintenance Manual” of the outdoor unit. Setting DIP switches may be required depending on the combinations with the outdoor unit.
  • Page 26 TROUBLESHOOTING NOTICE ● This equipment can be installed with a Ground Fault Circuit Interrupter (GFCI), which is a recognized measure for added protection to a properly grounded unit. Install appropriate sized breakers/ fuses/ overcurrent protection switches, and wiring in accordance with local, state and NEC codes and requirements.
  • Page 27 TROUBLESHOOTING ● Wired Controller Connecting Diagram For Ducted (Medium Static) with EconoFresh Kit: (a) One wired controller per indoor unit Indoor Unit Indoor Unit with EconoFresh Kit with EconoFresh Kit Outdoor Unit Wired Wired Controller Controller NOTE: This unit must be operated with single wired controller only. Failure to do so can affect comfort and control.

  • Page 28: Location Of Printed Circuit Boards (Pcbs)

    TROUBLESHOOTING 3.1.2 Location of Printed Circuit Boards (PCBs) (1) Outdoor Unit Refer to the Service Manual for Outdoor Unit. (2) Indoor Unit ● Ducted (Medium Static) with EconoFresh Kit PCB1 PCB2 SM-16005-rev.2...

  • Page 29: Checking Rotary Switch And Dip Switch Settings

    TROUBLESHOOTING 3.1.3 Checking Rotary Switch and DIP Switch Settings The following diagram indicates the factory settings of DSWs on PCBs in the indoor and outdoor units. When simultaneous operation control of multiple units or room thermostat control is operated, the DSW setting will be different as shown below.
  • Page 30 TROUBLESHOOTING (5) Capacity Code Setting (DSW3) No setting is required because of the factory setting. This switch is utilized for setting the capacity code which corresponds to the capacity of the indoor unit. Indoor Unit Capacity (MBH) DSW3 Setting Position 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6...

  • Page 31: Checking Wired Controller

    TROUBLESHOOTING 3.1.4 Checking Wired Controller Wired Controller Model: CIW01 Each “Check Menu” item and its function are explained in the following table. Check Menu Item Function Check 1 Sensor condition of air conditioner are monitored and indicated. Check 2 Sensor data of air conditioner prior to alarm occurrence is indicated. Alarm History Display Previous alarm record (date, time, alarm code) is indicated.
  • Page 32 TROUBLESHOOTING Features of Check Mode 1 Item Data Name Item Data Name Set Temp. Suction Pressure Inlet Air Temp. Control Information Discharge Air Temp. Operating Frequency Liquid Pipe Temp. I.U. Capacity Remote Thermistor Temp. O.U. Code Outdoor Air Temp. System Number (1) Gas Pipe Temp.
  • Page 33 TROUBLESHOOTING (2) Alarm History Display The Alarm History Display is accessed from the Check Menu. (1) Press and hold “Menu” and “ECO” simultaneously for 3 seconds during the normal Check Menu mode. Check 1 The Check Menu is displayed. Check 2 Alarm History Display (2) Select “Alarm History Display”...
  • Page 34 TROUBLESHOOTING (3) I.U./O.U. PCB Check (1) Press and hold “Menu” and “ECO” simultaneously for three seconds during the Check Menu normal mode. I. U./O. U. PCB Check Check Menu is displayed. Self Checking (2) Select “I.U./O.U. PCB Check” from the Check Menu and press “OK”.
  • Page 35 TROUBLESHOOTING (4) Self-Checking Self-Checking checks the wired controller and clears EEPROM (storage cell inside of the wired controller). (1) Press and hold “Menu” and “ECO” simultaneously for three seconds during the normal mode (when Check Menu unit is not operating). I.
  • Page 36 TROUBLESHOOTING (9) No Function This function is not used. 07: No Function Press “OK” to proceed. 08: Transmission Test Self Checking 0 7 : 0 0 0 (10) Communication (Transmission) Circuit Test The wired controller automatically starts to check the communication circuit. (11) Wired Controller Thermistor Test The detected temperature by the wired controller Self Checking...

  • Page 37: Checking Using 7-Segment Display

    TROUBLESHOOTING (5) Contact Information Registration Contact information can be registered from “Contact Information”. (1) Press and hold “Menu” and “Back/Help” simultaneously for at least three seconds during the normal mode (when unit is not operating). The Test Run Menu is displayed. (2) Select “Contact Information”...

  • Page 38: Troubleshooting Procedures

    TROUBLESHOOTING Troubleshooting Procedures l Alarm Code Indication of Wired Controller < CIW01 > (1) Refrigerant Cycle No. (*1) (1) (2) (2) Indoor Unit No. (*1) (3) Alarm Code 01-02 (4) Unit Model Code Alarm Code: (5) Total Number of Indoor Units in the Same System MODEL : F .08 AlarmRst as the Indoor Unit Having Trouble...

  • Page 39: Alarm Code Table

    TROUBLESHOOTING 3.2.1 Alarm Code Table Code Category Content of Abnormality Leading Cause Activation of Float Switch (High Water Level in Activation of Protection Device Indoor Unit Condensate Pan, Problem with Condensate Piping, (Float Switch) Float Switch, or Condensate Pan) Operational Irregularities between Incorrect Wiring, Loose Terminals, Disconnect Wire, Communication Indoor and Outdoor...

  • Page 40: Troubleshooting Using Alarm Codes

    TROUBLESHOOTING 3.2.2 Troubleshooting Using Alarm Codes Alarm Activation of Protection Device (Float Switch) in Indoor Unit Code l The RUN indicator (red) flashes. l The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD.
  • Page 41 TROUBLESHOOTING Action Event Cause Check Item (Turn OFF Main Switch) Clogging of High Drainage Check condensate pan. Remove foreign Activation of Condensate Up-Slope Check drainage by particles clogging Float Switch Level Condensate pouring water. condensate pipe. Piping Check continuity Replace float switch Failure when condensate if faulty.
  • Page 42 TROUBLESHOOTING Alarm Abnormal Communication between Indoor Units and Outdoor Units Code l The RUN indicator (red) flashes. l The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD, and the indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 43 TROUBLESHOOTING O.U. PCB: Outdoor Unit PCB I.U. PCB: Indoor Unit PCB Is voltage between Is LED1 (red) on "L1" and "N" of PCN1 Check Change-Over Change-Over Box on Change-Over Box Box wiring. PCB ON? PCB 208 or 230V? Is the fuse for Change-Over Box Replace fuse.
  • Page 44 TROUBLESHOOTING Action Event Cause Check Item (Turn OFF Main Switch) Measure voltage with Power Failure or No Power Supply Supply power. tester. Remove cause of Check for breakage short circuit. Short Circuit between Wires of insulation. Replace fuse and/or I.U./O.U. PCB if faulty. Remove cause of Measure insulation short circuit to ground.
  • Page 45 TROUBLESHOOTING *1): If the end terminal resistance (DSW10) is set to OFF for H-LINK connection, set the end terminal resistance to ON when CN2 is disconnected. Set the end terminal resistance to OFF when CN2 is reconnected. *2): 12VDC between VCC12 and GND2 5VDC between VCC05 and GND1 12VDC between VCC12 and GND1 15VDC between VCC15 and GND1...
  • Page 46 TROUBLESHOOTING Abnormality of Thermistor for Indoor Unit Inlet Air Temperature Alarm Code (Inlet Air Thermistor) l The RUN indicator (red) flashes. l The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD.
  • Page 47 TROUBLESHOOTING Abnormality of Thermistor for Indoor Unit Outlet Air Temperature Alarm Code (Outlet Air Thermistor) l The RUN indicator (red) flashes. l The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD.
  • Page 48 TROUBLESHOOTING Abnormality of Thermistor for Liquid Refrigerant Pipe Temperature Alarm Code at Indoor Unit Heat Exchanger (Freeze Protection Thermistor) l The RUN indicator (red) flashes. l The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD.
  • Page 49 TROUBLESHOOTING Abnormality of Thermistor for Gas Refrigerant Pipe Temperature Alarm Code at Indoor Unit Heat Exchanger (Gas Pipe Thermistor) l The RUN indicator (red) flashes. l The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD.
  • Page 50 TROUBLESHOOTING Abnormality of Thermistor for Outside Air Temperature Alarm Code (for Ducted (Medium Static) with EconoFresh Kit) l The RUN indicator (red) flashes. l The indoor unit number and the alarm code are displayed on the LCD. The alarm code is displayed on the 7-segment display of the outdoor unit PCB.
  • Page 51 TROUBLESHOOTING Activation of Protection Device for Indoor Fan Motor Alarm Code (for Ducted (Medium Static) with EconoFresh Kit) l The RUN indicator (red) flashes. l The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD.
  • Page 52 TROUBLESHOOTING ● Ducted (Medium Static) with EconoFresh Kit LED1 CN201 (To Fan Motor) PCN201 (To TB1) < Checking for Fan Motor > Remove the connector of the fan motor and measure the resistance value between each of the pins (twice). Check whether the resistance value is over or not according to the Decision Basis shown below.
  • Page 53 TROUBLESHOOTING Alarm Incorrect Capacity Setting of Indoor Unit and Outdoor Unit Code l The RUN indicator (red) flashes. l The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 54 TROUBLESHOOTING Alarm Incorrect Indoor Unit No. Setting Code l The RUN indicator (red) flashes. l The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 55 TROUBLESHOOTING Alarm Incorrect Setting of Unit Model Code Code l The RUN indicator (red) flashes. l The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.

  • Page 56: Abnormalities Of Devices

    TROUBLESHOOTING 3.2.3 Abnormalities of Devices Other Abnormalities of Devices Abnormalities If there is no abnormality (Alarm Code) indicated on the wired controller, and normal operation is not available, take necessary action according to the following procedures. Action Event Cause Check Item (Turn OFF Main Switch) Disconnected Measure coil...
  • Page 57 TROUBLESHOOTING Other Abnormalities of Devices Abnormalities Action Event Cause Check Item (Turn OFF Main Switch) Check Setting Condition Check Setting Condition of "Thermistor of of "Thermistor of Wired Zone Controller" Wired Controller" with Optional Setting with Optional Setting * Setting and Control * Setting and Control "00": Control by Indoor "00": Control by Indoor...
  • Page 58 TROUBLESHOOTING Other Abnormalities of Devices Abnormalities Action Event Cause Check Item (Turn OFF Main Switch) Failure of Failure of Thermistor Replace or correctly Check Thermistor in Check thermistor in Discharge connect wires Self-Checking mode *2). self-checking mode *2). Air Temp. Disconnected if abnormal.
  • Page 59 TROUBLESHOOTING Other Abnormalities of Devices Abnormalities Action Event Cause Check Item (Turn OFF Main Switch) Indoor Heat Load is Larger Calculate heat load. Use a larger unit. than Cooling Capacity Gas Leakage Correctly charge or Shortage Measure superheat. refrigerant after of Refrigerant repairing gas leakage.
  • Page 60 TROUBLESHOOTING Other Abnormalities of Devices Abnormalities Action Event Cause Check Item (Turn OFF Main Switch) Check clogging of outdoor unit Remove clogging. heat exchanger. Obstacles at inlet or Insufficient outlet of outdoor unit Remove obstacles. Airflow to heat exchanger? Outdoor Unit Heat Secure sufficient Is service space for...
  • Page 61 TROUBLESHOOTING Other Abnormalities of Devices Abnormalities Action Event Cause Check Item (Turn OFF Main Switch) Communication Check indoor unit Failure Repair it according indicating alarm code between to alarm code “03”. “03” on wired controller. I.U. and O.U. Insufficient Check indoor unit Check wired controller Communication Power...
  • Page 62 TROUBLESHOOTING Other Abnormalities of Devices Abnormalities Action Event Cause Check Item (Turn OFF Main Switch) Indoor Heat Load is Larger Use larger unit. Calculate heat load. than Heating Capacity Gas Leakage Correctly charge or Insufficient refrigerant after gas Measure superheat. Refrigerant leakage check and Charge...
  • Page 63 TROUBLESHOOTING Other Abnormalities of Devices Abnormalities Action Event Cause Check Item (Turn OFF Main Switch) Communication Check indoor unit Failure Repair it according indicating alarm code between to alarm code “03”. “03” on wired controller. I.U. and O.U. Insufficient Check indoor unit Check wired controller Communication Power...
  • Page 64 TROUBLESHOOTING Other Abnormalities of Devices Abnormalities Action Event Cause Check Item (Turn OFF Main Switch) Check for filter clogging. Remove clogging. Insufficient Airflow to Check for any obstacles Indoor Unit at inlet or outlet of Remove obstacles. Heat indoor unit. Exchanger Check indoor fan speed.
  • Page 65 TROUBLESHOOTING Other Abnormalities of Devices Abnormalities Action Event Cause Check Item (Turn OFF Main Switch) Foreign Particles Inside Remove foreign Check it by viewing. Fan Casing particles. Indoor Unit Fan Wheel Adjust position of Check it by viewing. Contacts Casing fan wheel.

  • Page 66: Procedures For Checking

    TROUBLESHOOTING Procedures for Checking Refer to the Service Manual for Outdoor Unit. Test Run Turn OFF all the power supply switches. Use a tester and make sure that all the switches are turned OFF. Before the test run, check that the unit is appropriately installed according to the Installation and Maintenance Manual.

  • Page 67: Test Run Using Wired Controller

    TROUBLESHOOTING 3.4.1 Test Run Using Wired Controller (1) Wired Controller (CIW01) Menu Button Menu On/Off (1) Turn ON the power supply of the indoor and outdoor units. Back/Help ECO (2) Set the TEST RUN mode with the wired controller. On/Off Back/Help Button Press and hold the "Menu"...
  • Page 68 TROUBLESHOOTING (4) Press “On/Off” button. Normal The test run operation is started. The operation mode, the airflow volume, the airflow direction and the test run time can be set on the Test Run screen. Select the item by pressing “ ”.

  • Page 69: Checking The Test Run

    TROUBLESHOOTING 3.4.2 Checking the Test Run (1) Indoor and Outdoor Fan Check that the indoor fan and outdoor fan rotate correctly and the airflow is smooth. (2) Power Supply Voltage < Voltage Change > Check the power supply. If the power supply is abnormal, contact the electric Initial Voltage power company.

  • Page 71: Maintenance

    MAINTENANCE 4. Maintenance SM-16005-rev.2...

  • Page 72: Maintenance Of Outdoor Unit

    MAINTENANCE 4.1 Maintenance of Outdoor Unit Refer to the Service Manual for Outdoor Unit. SM-16005-rev.2...

  • Page 73: Maintenance Of Indoor Unit

    MAINTENANCE 4.2 Maintenance of Indoor Unit Use the specified non-flammable refrigerant (R410A) to the outdoor unit in the refrigerant cycle. Do not charge the unit with materials other than R410A, such as hydrocarbon refrigerants (propane, etc.), oxygen, flammable gases (acetylene, etc.) or poisonous gases when installing, maintaining and moving the unit.

  • Page 74: Removing Fan And Fan Motor

    MAINTENANCE TURN OFF all POWER supply switches. 4.2.2 Removing Fan and Fan Motor The indoor fan and the fan motor can be removed only from the bottom side. (1) Remove the electrical box cover according to Section 4.2.1 “Removing PCB”. (2) Disconnect the connector for the fan motor located on the PCB2.
  • Page 75 MAINTENANCE TURN OFF all POWER supply switches. (4) After removing the rear lower cover, the fan assembly can be seen. Remove the wiring for the motor secured by the cable clamp of the fan mounting plate. (5) Remove four M4 screws securing each casing onto the fan mounting plate and move the fan casing slightly.
  • Page 76 MAINTENANCE TURN OFF all POWER supply switches. (7) Push the hooks at both sides of the fan casing and remove the lower part of the fan casing. Tool None Hook Fan Casing (8) Loosen the screws securing the fan motor shaft and the fan runner using the hexagonal wrench (for M6 screw) and remove the fan runner.

  • Page 77: Removing Condensate Pump

    MAINTENANCE TURN OFF all POWER supply switches. 4.2.3 Removing Condensate Pump (1) Remove the electrical box cover according to Section 4.2.1 “Removing PCB”. (2) Disconnect the connector for the condensate pump located on the PCB1. Then remove the wiring. (3) The condensate pump is mounted on the service cover. Remove four M4 screws securing the service cover and pull slightly forward.

  • Page 78: Removing Float Switch

    MAINTENANCE TURN OFF all POWER supply switches. 4.2.4 Removing Float Switch (1) Remove the electrical box cover according to Section 4.2.1 “Removing PCB”. (2) Disconnect the connector for the float switch located on the PCB1. Then remove the wiring. (3) Pull the service cover slightly forward according to Section 4.2.3 “Removing Condensate Pump”. Tool Phillips Screwdriver, Wrench Condensate Connection Service Cover...

  • Page 79: Removing Electronic Expansion Valve Coil

    MAINTENANCE TURN OFF all POWER supply switches. 4.2.5 Removing Electronic Expansion Valve Coil (1) Remove the electrical box cover according to Section 4.2.1 “Removing PCB”. (2) Disconnect the connector for the expansion valve coil located on the PCB1. Then remove the wiring. (3) Pull the service cover slightly forward according to Section 4.2.3 “Removing Condensate Pump”.

  • Page 80: Removing Thermistors For Liquid Pipe And Gas Pipe

    MAINTENANCE TURN OFF all POWER supply switches. 4.2.6 Removing Thermistors for Liquid Pipe and Gas Pipe (1) Remove the electrical box cover according to Section 4.2.1 “Removing PCB”. (2) Disconnect the connector for the liquid pipe (THM3) and gas pipe (THM5) located on the PCB1. Then remove the wiring.

  • Page 81: Removing Condensate Pan

    MAINTENANCE TURN OFF all POWER supply switches. 4.2.7 Removing Condensate Pan (1) Remove the rear lower cover according to Section 4.2.2 “Removing Fan and Fan Motor”. (2) Remove the nine M4 screws securing the front lower cover at the heat exchanger side and remove this cover.

  • Page 82: Main Parts

    MAINTENANCE (Main Parts) 4.3 Main Parts 4.3.1 for Outdoor Unit Refer to the Service Manual for Outdoor Unit. 4.3.2 for Change-Over Box Refer to the Service Manual for Outdoor Unit. 4-12 SM-16005-rev.2...

  • Page 83: For Indoor Units

    MAINTENANCE (Main Parts) 4.3.3 for Indoor Units 4.3.3.1 Printed Circuit Board ● Ducted (Medium Static) with EconoFresh Kit Arrangement of Connectors and Check Points for Control PCB1 (PI114) PCN6 PCN7 VCC12 VCC05 GND1 VCC17 CN19 THM2 THM3 THM1 THM4 THM5 CN14 CN17 CN11 Arrangement of Connectors and Check Points for Power PCB2 (PI117) CN201 CN202 CN203...

  • Page 84: Fan Motor

    MAINTENANCE (Main Parts) 4.3.3.2 Fan Motor ● Ducted (Medium Static) with EconoFresh Kit Rotating Direction 22-13/16 (580) 9-7/16 (239.3) 4 (101.3) 9-7/16 (239.4) 3-15/16 (100) (10) 3-15/16 (100) (10) 4-5/8 (118) View from V 8 7 6 5 4 3 2 1 Black White Yellow Blue (Vm) (GND)

  • Page 85: Thermistor

    MAINTENANCE (Main Parts) 4.3.3.3 Thermistor (1) Position of Thermistor ● Ducted (Medium Static) with EconoFresh Kit Air Inlet Air Inlet (Outdoor Air) (Indoor Air) Outdoor Air Thermistor (THM4) Inlet Air Thermistor (THM1) Gas Pipe Thermistor (THM5) Liquid Pipe Thermistor (THM3) Air Outlet Outlet Air Thermistor (THM2) 4-15 SM-16005-rev.2...
  • Page 86 MAINTENANCE (Main Parts) (2) Thermistor for Indoor Suction Air Temperature (For Room Temperature Control) The room temperature is controlled by the thermistor for indoor suction air temperature detecting the temperature at the suction air Thermistor Resistance inlet of the indoor unit. The setting temperature is indicated on the LCD of the wired controller by number.

  • Page 87: Electronic Expansion Valve

    MAINTENANCE (Main Parts) 4.3.3.4 Electronic Expansion Valve Micro-Computer Pulse Signal 2-Phase Permanent Magnetic Pulse Motor Control 0 to 2,000 Pulse by 1 Pulse Refrigerant Flow Control Precise Control Unit: inch (mm) φ1-9/16 (40) Electronic Expansion φ15/16 Valve Coil (24.4) Model: PAM-MD12HS φ7/8 (21.85) φ7/8...
  • Page 88 MAINTENANCE (Main Parts) Specifications Items Specifications Type PAM Type Refrigerant Used R410A Working Temperature Range F to 158 F (-30 C to 70 Mounting Direction Drive Shaft in Vertical Direction, Motor Upside and 90 in Four Directions Flow Direction Reversible Drive Method 4-Phase Pulse Motor Method Rated Voltage...

  • Page 89: External Input/Output And Function Setting

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5. External Input/Output and Function Setting SM-16005-rev.2...

  • Page 90: Dip Switch Settings Of Outdoor Unit

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.1 DIP Switch Settings of Outdoor Unit Refer to the Service Manual for Outdoor Unit. 5.2 High Static Pressure Setting (DSW5-No.5: ON) Refer to the Service Manual for Outdoor Unit. 5.3 External Input/Output and Function Setting Mode for Outdoor Unit Refer to the Service Manual for Outdoor Unit.

  • Page 91: External Input/Output And Function Setting Mode For Indoor Unit

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.4 External Input/Output and Function Setting Mode for Indoor Unit ● Setting Method from Wired Controller The function selection and the input/output setting can be set from the test run menu. < Normal Mode Display > < Test Run Menu Display > Test Run Menu Meeting Room FLTR Test Run MODE SPEED LOUV. TEMP Function Selection COOL Thermistor Selection Input/Output LOUV. Adj. Elevating Grille Setting Menu Sel.
  • Page 92 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING ● Function Selection and Input/Output Setting 1. Press and hold “Menu” and “Back/Help” simultaneously Test Run Menu for at least three seconds during the normal mode (when Test Run unit is not operated). The Test Run menu is displayed. Function Selection Thermistor Selection Input/Output 2. Select “Function Selection” or “Input/Output” from the Test Run menu and press “OK”. Elevating Grille Setting Sel. Entr Back Rtrn 3. Select the indoor unit by pressing “ ” and touch Function Selection “OK”. (This screen is NOT displayed when the number of an indoor unit connected with the controller is 01-01 "1". In this case, "4" is displayed.) 01-02...

  • Page 93: External Input And Output Settings

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.4.1 External Input and Output Settings On the Indoor Unit Printed Circuit Board (PCB), there are two input terminals (CN3) to receive external signals and three output terminals (CN7, CN8 ) to send signals out. Functions shown in these tables are available when setting input and output terminals. Input and Output Number Display and Connectors Input Number Display Factory Setting Port Setting Input/Output Indication Setting Item Indication Input 1 CN3 1-2 Remote ON/OFF 1 (Level) Input 2 CN3 2-3 Prohibiting Remote Control after Manual Stoppage Output 1 CN7 1-2 Operation Output 2 CN7 1-3 Alarm Output 3 1-2 Thermo-ON for Heating Input and Output Settings and Display Codes...

  • Page 94: Remote Control On/Off Function

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.4.1.1 Remote Control ON/OFF Function This function provides a control to stop and start the system automatically from a remote place. Four methods are available by using each signal from a building management system. (1) Remote ON/OFF 1 (Level Signal Input) [ Input Setting: Code (03) ] This is an ON/OFF function from a remote place by using level signals (ON/OFF). An example of basic wiring and time chart is shown below. NOTE: When the unit is started by the remote ON/OFF switch, Indoor Unit PCB the fan speed is subject to the mode memorized in the wired controller. SS3: Remote ON/OFF Power Supply...
  • Page 95 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (2) Remote ON/OFF 2 (Pulse Signal Input) [ Input Setting: Code (04) ] This is an ON/OFF function from a remote place by using pulse signals. An example of a basic wiring and time chart is shown below. Indoor Unit PCB NOTES: The pulse range is 200ms or more. Power Supply Control Circuit 3P Connector Wiring Diagram Example of Remote ON/OFF 2 Example: Operation Input is set to terminals 2 and 3 of CN3. Stoppage Input is set to terminals 1 and 2 of CN3.
  • Page 96 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (3) Remote ON/OFF 3 (Pulse Signal Input) [ Input Setting: Code (05) ] The setting for Remote ON/OFF 3 shall be the same as that for Remote ON/OFF 2. By using the signal from a building management system, the indoor units can be stopped. If a signal is input during the stoppage of the indoor units, the unit remains unchanged. An example of basic wiring and time chart is shown below. NOTE: Indoor Unit PCB The pulse range is 200ms or more. Power Supply Control Circuit 3P Connector Wiring Diagram Example of Remote ON/OFF 3 (Example: Stoppage Input is set to terminals 1 and 2 of CN3.) Signal to terminals 1 &...
  • Page 97 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (4) Forbidding Remote Control after Manual (Forced) Stoppage (Level Signal Input) [ Input Setting: Code (06) ] By using the signal from a building management system, the indoor units can be stopped and the individual commands from the wired controller are canceled. An example of basic wiring and time chart is shown below. Indoor Unit PCB SS3: Forced Stoppage Sw. Power Supply 3P Connector Wiring Diagram Example Example: Forbidding Remote Control after Manual (Forced) Stoppage is set to terminals 2 and 3 of CN3. Signal to terminals 2 &...
  • Page 98 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING Table 5.1 Specifications on Required Components for (1) to (4) Functions Component Manufacturer or Specifications Remarks OMRON Mini Power Relay Auxiliary Relay (X1, X2) Model: MY1F/2F or Equivalent Voltage 220V Changeover Switch (SS2, SS3) Manual Type Optional Part PCC-1A Five Cords with 3P Connector Cord (Connectable to JST Connector XARP-3), 12V Connectors as One Set Low Voltage AWG22 (0.3mm less than 12V Cord (Indoor) 220V Class AWG20 or AWG18 (0.5 to 0.75mm Low Voltage AWG20 or AWG18 (0.5 to 0.75mm less than 12V Cord (Outdoor) 220V Class AWG14 (2mm NOTE: 1. Make the wires CN3 as short as possible. Do not install the wires with the 220V power line. Install them more than 12 in. (30cm) away from each other. (Intersecting them is acceptable.) If the wires are installed along the power line, comply with the following points to prevent noise. a. Pass either of the low voltage wire and 220V power line through a metal conduit tube and ground one end. b. Use a shielded wire for a low voltage wire and ground one end. The maximum wiring length is 230 ft. (70m). 2. When using this function, it is recommended that safety devices such as an electric leakage breaker or smoke detector, etc., be used because this is an unattended function.

  • Page 99: Power Supply On/Off 1 (Automatic Operation When Power Supply Is On)

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.4.1.2 Power Supply ON/OFF 1 (Automatic Operation When Power Supply Is ON) This function is utilized to run/stop the unit by turning ON/OFF the power supply. When this function is utilized in the condition that there is no person to operate the unit, monitor the system for disaster prevention. When using this function, refer to operation for Wired Controller item (30) “Power Supply ON/ OFF (Automatic Operation When Power Supply Is ON) (d1) for the setting. NOTE: 1. The unit is stopped even when the power supply is turned ON/OFF due to power failure. If power failure occurs during the stoppage of the unit, the operation is restarted after the power supply is restored. 2. Wired Controller is required for this function. 3. When the communication cable is not used in the twin, triple and quad combinations for simultaneous operation, set this function only to the main indoor unit. 5.4.1.3 Power Supply ON/OFF 2 (Restarting Function After Power Failure) This function is utilized to restart the unit operation automatically when the power supply is restored after the power failure over 2 seconds. In case of a power failure for 2 seconds or less, the system resumes normal operation after a 3-minute compressor delay. When this function is utilized in the condition that there is no person to operate the unit, monitor the system for disaster prevention. NOTE: 1. If power failure occurs during the stoppage of the unit, the unit remains stopped after the power supply is restored. 2. Wired Controller is required to be connected for setting this function. 3. When the communication cable is not used in the twin, triple and quad combinations for simultaneous operation, set this function only to the main indoor unit. 5-11 SM-16005-rev.2...

  • Page 100: Control By Field-Supplied Room Thermostat [ Input Setting: Code (01) (For Cooling), Code (02) (For Heating) ]

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.4.1.4 Control by Field-Supplied Room Thermostat [ Input Setting: Code (01) (for Cooling), Code (02) (for Heating) ] In a case where a field-supplied room thermostat is used instead of the inlet thermistor of the indoor unit in order to run/stop the compressor, connect wires as shown below. 3P Connector Thermostat NOTE: The contact capacity of a thermostat shall be DC12V and several mA. Select a thermostat which makes and breaks the Temperature contact with this capacity. Increase Indoor Unit PCB Field-Supplied Room Thermostat Example: Room Thermostat Input (for Cooling) is set to terminals 2 and 3 of CN3...

  • Page 101: Remote Cooling/Heating Change [ Input Setting: Code (07) ]

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.4.1.5 Remote Cooling/Heating Change [ Input Setting: Code (07) ] The cooling or heating operation mode can be changed by giving a contact signal from the outside to the unit. Set this function to CN3 with a wired controller according to Section 5.4.2.1 “Function Selection Item.” This function detects ON to OFF transition and OFF to ON transition. Of the commands by this signal and a wired controller, the command given later is preferentially executed. An example of basic wiring and time chart is shown below. Indoor Unit PCB HEAT COOL Power Supply 3P Connector Wiring Diagram Example (Example: Remote Cooling/Heating Change is set to terminals 1 and 2 of CN3.) Heat Signal to terminals 1 & 2 of CN3 Cool Control by Wired Controller (Heat) Control by Wired Controller (Cool)

  • Page 102: Picking Up Operation Signal

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.4.1.6 Picking Up Operation Signal Up to 3 of the following 7 signals can be picked up by setting this function to CN7 and CN8 according to the following figures. Make sure to use a field-supplied remote control adopter PSC-5RA for picking up signals. The wiring length shall be 230 ft. (70m) or less. The settings for picking up signals (1), (2) and (4) are already set at the factory. NOTE: 1. Output terminal (CN8) is no longer available for indoor unit produced in February 2018 or later. (1) Picking Up Operation Signal [ Output Setting: Code (01) ] This function is utilized to pick up an operation signal that has nothing to do with the compressor stoppage by a thermistor. An example of basic wiring is shown below. The contact of the auxiliary relay “RYa” is closed when this operation signal is given. This function enables the signal check during remote control operation and an interlock of the fan for air inlet, etc. The contact of the auxiliary relay “RYa” is opened while the protection devices are activated. Indoor Unit PCB CN7 Connector Auxiliary Relay 3 P Connector Picking Up Operation Signal (Example: Operation Output is set to terminals 1 and 2 of CN7.) (2) Picking Up Alarm Signal [ Output Setting: Code (02) ] This signal is utilized to pick up an alarm signal while safety devices are activated. However, this function is not available during abnormal communication of the wired controller. An example of basic...
  • Page 103 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (3) Picking Up Cooling Operation Signal [ Output Setting: Code (03) ] This function is utilized to pick up a cooling operation signal that has nothing to do with the compressor stoppage by a thermistor. An example of basic wiring is shown below. The contact of the auxiliary relay “RYa” is closed when this operation signal is given. Indoor Unit PCB CN7 Connector Auxiliary Relay 3 P Connector Picking Up Operation Signal (Example: Cooling Operation Output is set to terminals 1 and 3 of CN7.) (4) Picking Up Cooling Thermo-ON Signal [ Output Setting: Code (04) ] This function is utilized to pick up a thermo-ON signal during the cooling operation. An example of basic wiring is shown below. The contact of the auxiliary relay “RYa” is closed during thermo-ON in cooling operation. Indoor Unit PCB CN7 Connector Auxiliary Relay...
  • Page 104 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (6) Picking Up Heating Thermo-ON Signal [ Output Setting: Code (06) ] This function is utilized to pick up a thermo-ON signal during the heating operation. An example of basic wiring is shown below. The contact of the auxiliary relay “RYa” is closed during thermo-ON in heating operation. Use this function for operation of a circulator or a humidifier. Indoor Unit PCB Connector Auxiliary Relay 3 P Connector Picking Up Operation Signal (Example: Heating Thermo-ON Output is set to terminals 1 and 2 of CN8 NOTE: 1. Output terminal (CN8) is no longer available for indoor unit produced in February 2018 or later. (7) Picking Up Total Heat Exchanger Signal [ Output Setting: Code (07) ] This function is utilized to pick up a total heat exchanger signal during the ventilation mode selected with a wired controller. An example of basic wiring is shown below. Indoor Unit PCB CN7 Connector Auxiliary Relay...

  • Page 105: Function Setting

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.4.2 Function Setting 5.4.2.1 Function Selection Item ● for Ducted (Medium Static) with EconoFresh Kit Individual Setting No. Items Optional Function Contents Setting Condition Standard (Set Temp. +7 F (+4 Cancellation of Heating Removal (Set Temp.) ○ Temperature Compensation Set Temp. +3 F (+2 C) (*1) due to Uneven Heat Load Set Temp. +5 F (+3 Set Temp. +2 F (+1 Circulator Function during Not Available ○ Heating Thermo-OFF Available Not Prepared Not Used (Use as 00 conditions) Standard 1,200 hrs (Factory-Setting) 100 hrs...
  • Page 106 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING Individual Setting No. Items Optional Function Contents Setting Condition Not Prepared Not Used (Use as 00 conditions) Not Prepared Not Used (Use as 00 conditions) Standard (7-Step Operation) Cold Draft Prevention ○ Change of Louver Swing Angle (5 Steps: lower 2 steps cut off) High Ceiling (higher 2 steps cut off) Not Available ○ Power Supply ON/OFF 1 Available Not Prepared Not Used Not Available ○ Power Supply ON/OFF 2 Available Prevention for Cooling Discharge Air Not Available ○...
  • Page 107 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING Individual Setting No. Items Optional Function Contents Setting Condition No Function OFF Timer by 1 hr OFF Timer by 2 hrs • • Automatic OFF Timer Setting • • OFF Timer by 23 hrs × OFF Timer by 24 hrs * Do not set the functions “0C”~“0F” OFF Timer by 30 min. when 2 (two) wired controllers are OFF Timer by 90 min. used in the same controller group OFF Timer by 40 min. OFF Timer by 45 min. Do not set them when OFF Timer by 50 min. two wired controllers are used. OFF Timer by 55 min. Main ×...
  • Page 108 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING Individual Setting No. Items Optional Function Contents Setting Condition F (19 F (20 F (21 F (22 F (23 Cooling Lower Limit for Setting × F (24 Temperature (*3) F (25 F (26 F (27 F (28 F (29 F (30 F (29 F (28 F (27 F (26 F (25 Heating Upper Limit for Setting × F (24 Temperature (*4) F (23 F (22 F (21 F (20 F (19...
  • Page 109 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING Individual Setting No. Items Optional Function Contents Setting Condition Not Prepared Not Used (Use as 00 conditions) Not Prepared Not Used (Use as 00 conditions) Not Prepared Not Used (Use as 00 conditions) Not Prepared Not Used (Use as 00 conditions) Not Prepared Not Used (Use as 00 conditions) Not Prepared Not Used (Use as 00 conditions) Auxiliary Heater OFF at Defrosting Heater ON ○ Operation Heater OFF Not Prepared Not Used (Use as 00 conditions) Not Prepared Not Used (Use as 00 conditions)
  • Page 110 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING Individual Setting No. Items Optional Function Contents Setting Condition F (2.5 F (3.0 Ambient Temperature Restriction F (3.5 ○ Setpoint Compensation (*11) F (0.5 (for Auxiliary Heater Setting) F (1.0 F (1.5 F (2.0 Not Prepared Not Used Not Prepared Not Used Not Prepared Not Used Not Prepared Not Used Not Prepared Not Used Not Prepared...
  • Page 111 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING *1): The “02” setting may not be available according to the type of indoor unit. *2): In case that the set temperature is changed and the temperature is kept for a specific time set by “F4”, it automatically changes to the temperature set by “F5” or “F6.” (In case that the set temperature of “F5” and “F6” is out of range, the upper or lower limit temperature is applied.) *3): Applicable to fan, cooling and dry operation modes. *4): Applicable to heating operation mode. *5): Operation is stopped by pressing the “ ” (On/Off) button for 3 seconds. *6): The sensor value at “C8” is indicated. When the thermistor for wired controller is used, the average value of the thermistor for wired controller and the thermistor for indoor inlet is indicated. *7): When the unit is restarted by the wired controller, the temperature automatically changes to the setting temperature of “F5” or “F6”. *8): Make sure to enable the EconoFresh Pressure Mode (optional function C5) on the wired controller before operation. Otherwise, the airflow volume becomes insufficient and this unit will not operate effectively. EconoFresh Pressure Mode is “01”. (Optional function C5 on the wired controller is set to “00” by default) *9): If the Damper Minimum Setting (optional function d7) of this indoor unit is set to higher step then this will affect the air outlet temperature of other standard indoor units. *10): Airflow volume must be at lower limit for All Fresh operation. *11): Be sure to use only the "00" setting condition when combining optional function settings, "q4" and "q5," with a water source unit. The water source unit detects entering water temperature instead of outdoor ambient temperature. This setting does not function. NOTES: 1. Wait at least 3 minutes from initial power ON to change the optional setting. 2. When changing “CF” setting (“Change of Louver Swing Angle”), restore the power supply or test the louver swing a couple of times in the auto swing mode to validate the setting.

  • Page 112: Description Of Function Selection Item

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.4.2.2 Description of Function Selection Item (1) Cancellation of Heating Temperature Compensation due to Uneven Heat Load (b1) This function is utilized when the setting temperature of the wired controller and the inlet air temperature of the indoor unit are required to be equal. This is useful when the inlet air thermistor is relocated to the outside of the indoor unit. Setting Temperature for Room Temperature Control during Heating Setting Condition Actual Control Temperature 00 (Standard) Wired Controller Setting Temperature (Indicated Value) +7 F (+4 Wired Controller Setting Temperature (Indicated Value) Wired Controller Setting Temperature (Indicated Value) +3 F (+2 Wired Controller Setting Temperature (Indicated Value) +5 F (+3 Wired Controller Setting Temperature (Indicated Value) +2 F (+1 NOTE: The maximum setting temperature after correction is as follows. Inverter Multi Unit: 94 F (34 (2) Circulator Function during Heating Thermo-OFF (b2) In the standard factory setting, the air flow volume changes to “LOW” automatically to prevent a cold...
  • Page 113 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (7) Fixing of Operation as Exclusive Cooling Unit (b7) This function is utilized when exclusive cooling operation is required. This function invalidates the heating operation and the automatic COOL/HEAT operation, as the operation of exclusive cooling unit. (8) Automatic COOL/HEAT Operation (b8) This function is utilized to change cooling and heating operation automatically (the same operation mode for indoor units in the same refrigerant cycle). This function is invalid when the outdoor unit is cooling-only model or the function of “Fixing of Operation as Exclusive Cooling Unit” is valid. NOTES: ● This function is not available for all fresh mode and gas sensor mode. ● Depending on the operation range the compressor may stop and this unit switches to fan mode during heating or cooling operation. ● Function (36) "Damper Minimum Opening (d7)" should be set to "00" for this function. Higher step may increase the load and affect the air outlet temperature of other standard indoor units. (9) Fixing of Fan Speed (b9) This function is utilized to fix the fan speed. When this function is valid, the fan speed can not be changed by the wired controller. (10) Not Prepared (bA) (11) Cooling Temperature Compensation due to Uneven Heat Load (bb) This function is utilized to provide the longer cooling operation time than the standard.
  • Page 114 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (22) Thermistor of Wired Controller (C8) This function is utilized to control the unit by the built-in thermistor of the wired controller (wired controller thermistor) instead of the inlet air thermistor. Set this function at “01” or “02” when utilizing this function. However, even if this function is set at “01” or “02”, if the detecting temperature is abnormal due to the failure of the thermistor of the wired controller, etc., the control is changed to the inlet air thermistor of the indoor unit automatically. Selected Thermistor Setting Controlled Indoor Temp. Indoor Suction Thermistor Thermistor of Wired Controller Thermistor of Wired Controller Average Value of Indoor Suction Thermistor and Thermistor of Wired Controller (23) Not Prepared (C9) (24) Not Prepared (CA) (25) Selection of Forced Stoppage Logic (Cb) This function is utilized to select the logic of the contact for forced stoppage signal input.
  • Page 115 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (32) Power Supply ON/OFF 2 (Restarting Function After Power Failure) (d3) This function is utilized to restart the unit operation automatically when the power supply is restored after a power failure of over 2 seconds. In case of power failure for 2 seconds or less, the standard unit retains all the operational functions and restarts the operation automatically. (The compressor restarts operation after 3 minutes guard in addition to power failure time for up to 2 seconds.) When this function is utilized in the condition that there is no person to operate the unit, monitor the system for potential unit failure. NOTES: 1. If power failure occurs during the stoppage of the unit, the unit remains stopped after the power supply is restored. 2. When the compressor does not reach the fixed temperature, the system may not restart automatically after turning on the power supply by hot-start control. *Hot-start Control: The control program that does not operate the compressor even after the power is turned ON if the compressor does not reach the fixed temperature. (33) Prevention for Cooling Discharge Air Temperature Decrease (d4) This function is utilized to prevent discharge air temperature decrease during the cooling operation by controlling Thermo-ON/OFF according to the discharge air temperature.
  • Page 116 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (38) Enthalpy Sensor (E2) This function selects the enthalpy sensor input. (39) Not Prepared (E3) (40) CO Gas Sensor (E4) This function selects the CO gas sensor input. (41) Not Prepared (E5) (42) Indoor Fan Operation Time After Cooling Operation Stoppage (E6) This function is utilized to prevent condensation upon cooling operation stoppage by “SLOW” indoor fan operation to dry. “SLOW” operation (for 60 minutes or 120 minutes by setting) continues even when the cooling operation is stopped. (43) Not Prepared (E7) (44) Fan Operation Control during Heating Thermo-OFF (E8) This function is utilized to prevent the perception of cold draft by reducing the indoor fan speed during heating Thermo-OFF.
  • Page 117 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (52) Not Prepared (F0) (53) Automatic OFF Timer Setting (F1) This function is utilized to set the OFF timer function automatically when the unit is operated by the wired controller. During the operation with the automatic OFF timer setting function, the cancellation of the OFF timer and the changing of the setting period for OFF timer can not be performed. However, the OFF timer function is canceled when the unit is stopped. When the unit is operated again after stoppage, the setting period for OFF timer is set by the optional setting. The setting condition and the setting period for OFF timer are shown below. < Example for CIW01 > Setting Condition Setting Period for OFF Timer Invalid 1 hour 2 hours 23 hours 24 hours 30 minutes 90 minutes 40 minutes 45 minutes 50 minutes 55 minutes NOTES: 1. This function is not available when the unit is controlled by the centralized controller, the remote control connecting with Central Controllers.
  • Page 118 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (55) Automatic Reset of Setting Temperature (F3) This function is utilized to economize the operation. When this function is valid, in the case that the set temperature is not changed for certain period of time by the function (56) “Automatic Reset Time (F4)”, the set temperature automatically returns to (57/58) “Automatic Reset Temperature for Cooling/ Heating (F5/F6)” as following conditions. It is effective to optimize the setting temperature and provide energy saving. However, the setting temperature is not automatically reset in the case that “Automatic COOL/HEAT Operation” mode, or “Prohibiting Operation by Wired Controller” is set by the centralized controller. Setting Return to (57) Automatic Reset Temperature Change Temperature for Cooling N Operation Mode * COOL * DRY * FAN (56) Automatic Reset Time N Operation Mode Setting Return to (58) Automatic Reset...
  • Page 119 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (58) Automatic Reset Temperature for Heating (F6) This function is utilized to set the automatic reset temperature for HEAT operation. The setting conditions and the automatic reset temperature for heating are as follows: Setting Condition Setting Temperature for Automatic Reset 62 (17) F (17 64 (18) F (18 66 (19) F (19 68 (20) F (20 70 (21) F (21 C) (Factory-Setting) 72 (22) F (22 74 (23) F (23 76 (24) F (24 77 (25) F (25 78 (26) F (26 80 (27) F (27 82 (28) F (28 84 (29) F (29...
  • Page 120 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (64) Cooling Lower Limit for Setting Temperature (FC) This function is utilized to limit the lowest setting temperature for FAN/COOL/DRY operations. When this function is valid, it provides the appropriate cooling operation and energy saving. The setting conditions and the minimum setting temperature for cooling are as follows: <Example> Setting Temperature at Wired Controller Factory-Setting: "00" Temperature Setting: Available (Lower Limit 66+0=66 F (19+0=19 Setting Condition: "06" Temperature Setting Temperature Setting (Lower Limit 66+11=77 F (19+6=25 : Not Available : Available...
  • Page 121 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (66) Not Prepared (FE) (67) Not Prepared (FF) (68) Not Prepared (H1) (69) Indication of Hot Start (H2) When this function is set as “No Indication” (01), “HOT-ST” is not indicated on the wired controller. (70) Not Prepared (H3) (71) Not Prepared (H4) (72) Not Prepared (J1) (73) Not Prepared (J2) (74) Run Indicator Color (J3) This function is utilized to set the run indicator color.
  • Page 122 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (93) Not Prepared (L1) (94) Not Prepared (L2) (95) Not Prepared (L3) (96) Not Prepared (L4) (97) Not Prepared (L5) (98) Not Prepared (L6) (99) Not Prepared (L7) (100) Not Prepared (L8) (101) Auxiliary Heater OFF at Defrost Operation (L9) This function is utilized to activate/deactivate heater during defrost operation when heater operation is enabled.
  • Page 123 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (116) Auxiliary Heater Setting (q1) This function is utilized to activate/deactivate auxiliary heater operation. When this function is valid, the “auxiliary heater” signal is output from indoor unit PCB connector depending on indoor and outdoor temperature. NOTES: ● “Auxiliary heater” signal does not output during Test Run. ● Fan delay will start for 120 seconds when the unit is turned OFF from the wired controller or during defrost operation (when optional function L9 on the wired controller is set to "01"). ● Fan delay will not start when an alarm has occurred. ● Airflow volume of indoor unit is restricted to HIGH or HIGH2 during the auxiliary heater ON is output. ● In case the auxiliary heater is connected and the setting is enabled, during following instances the auxiliary heater alone without heat pump may operate in heating mode. During Defrosting Operation Low Ambient Temperature (117) Auxiliary Heater ON Compensation (for Auxiliary Heater Setting) (q2) This function is utilized to change the indoor temperature condition to activate auxiliary heater. This function is invalid when the function of "Auxiliary Heater Setting" is invalid. Setting Condition Actual Control Temperature 00 (Standard) Wired Controller Setting Temperature (Indicated Value) -3 F (-1.5 Wired Controller Setting Temperature (Indicated Value) -3 F (-2 Wired Controller Setting Temperature (Indicated Value) -4...
  • Page 124 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (120) Ambient Temperature Restriction Setpoint Compensation (for Auxiliary Heater Setting) (q5) This function is utilized to change the outdoor ambient temperature condition to change operation from auxiliary heater only to Thermo-ON with auxiliary heater. This function is invalid when the function of "Auxiliary Heater Setting" is invalid. Setting Condition Actual Control Temperature 00 (Standard) (q4) + 4 F (2.5 (q4) + 5 F (3.0 (q4) + 6 F (3.5 (q4) + 1 F (0.5 (q4) + 2 F (1.0 (q4) + 3 F (1.5 (q4) + 3 F (2.0 NOTE: Be sure to use only the "00" setting condition when combining this "q5" function with a water source unit. (121) Not Prepared (q6) (122) Not Prepared (q7) (123) Not Prepared (q8) (124) Not Prepared (q9)
  • Page 125 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (131) Setback Temperature Compensation (During card key removal, setpoint is setbacked) (r3) This function is utilized to change the indoor temperature condition to Thermo-ON/OFF. In case the setback operation is enabled and the card key is removed, setpoint is compensated and fan operate at “LOW” speed. NOTES: ● This function is not available for all fresh mode and gas sensor mode. ● Depending on the operation range the compressor may stop and this unit switches to fan mode during heating or cooling operation. ● Function (36) "Damper Minimum Opening (d7)" should be set to "00" for this function. Higher step may increase the load and affect the air outlet temperature of other standard indoor units. By default, Cooling: Setpoint +4 (+2.5 Heating: Setpoint -4 (-2.5 When the external signal is detected (card key is inserted), return to the original setting temperature. Compensation for setback operation can be changed as shown in the table below. Setting Condition Actual Control Temperature 00 (Standard) Wired Controller Setting Temperature (Indicated Value) +4 F (2.5 Wired Controller Setting Temperature (Indicated Value) +5 F (3.0 Wired Controller Setting Temperature (Indicated Value) +6 F (3.5 Wired Controller Setting Temperature (Indicated Value) +7...

  • Page 126: Functions From Wired Controller

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.5 Functions from Wired Controller The functions are available from the wired controller CIW01 as follows. Regarding setting procedure, refer to the “Operation Manual” for the Wired Controller. 5.5.1 Power Saving Function NOTE: The following functions (1)~(3) cannot be operated at the same time. (1) Outdoor Unit Capacity Control The demand function setting can be controlled from wired controller. Select from “Peak Cut Control” and “Moderate Control” according to the situation. “Peak Cut Control” Function The peak cut control reduces the power consumption range when it exceeds the value of the power saving setting. without Power Saving Power Saving Setting Set Value It can be selected from Maximum Capacity Operation 100%, 90%, 80%, 70%, 60%, 50%, and 40% in Power Saving Set Value Range...
  • Page 127 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (2) Rotation Control Function The rotation control switches multiple indoor unit operating mode to FAN mode (Thermo-OFF) in order one by one. Order of Fan Operation Cooling Operation Operation* Indoor Unit 1 Order of Fan Operation The indoor unit fan Cooling Cooling operation is Operation Operation* Operation performed in rotation by Indoor Unit 2 indoor unit address Nos.

  • Page 128: Schedule Function

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.5.2 Schedule Function (1) Power Saving Schedule Function The power saving schedule function is utilized to set the power saving schedule on indoor unit capacity control and intermittent control up to five settings a day each day of the week. The display of Noise Reduction Schedule is the same. (2) Operation Noise Reduction Schedule Function The operation noise reduction schedule function is utilized to set the operation noise reduction schedule up to five settings a day each day of the week. NOTE: The operation noise reduction setting may decreases the Cooling/Heating capacity. For detail, refer to Section “Sound Reduced Function” in the "Service Manual" for the outdoor unit. 5.5.3 Indication Function (1) Power Consumption Display Function...

  • Page 129: Comfort Function

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.5.4 Comfort Function Following functions are not available depending on connected outdoor unit. (1) Quick Function Do not use the Quick Function when using the Ducted (EconoFresh). When it is used, the thermal load of heat source in the room may significantly increase depending on the outdoor temperature conditions. Configure according to the outdoor temperature condition. (2) Power Up Setting If the cooling/heating capacity seems insufficient during the normal operation, set this function. By setting this function, the target frequency and upper limit of the compressor are set higher as follows. Power Up Mode Setting Condition Compressor Frequency for Cooling Operation Compressor Frequency for Heating Operation Upper Limit Target Frequency Upper Limit Target Frequency 0 (Default Setting) Default Setting +20% Default Setting +20% Default Setting +20% Default Setting +20% Default Setting +20% Default Setting +20% Default Setting +20% Default Setting +20% NOTE: The upper limit and target frequency of the compressor are same as Function Setting “Hc” or “Hh”. 5-41 SM-16005-rev.2...

  • Page 131: Field Work Instructions

    FIELD WORK INSTRUCTIONS 6. Field Work Instructions SM-16005-rev.2...

  • Page 132: Caution For Refrigerant Leakage

    FIELD WORK INSTRUCTIONS Refer to Section 3 “Troubleshooting” when dealing with problems or difficulties. If you cannot solve the problem, contact your distributor or contractor. 6.1 Caution for Refrigerant Leakage ● Special Attention Regarding Refrigerant Gas Leakage Make sure that the entire VRF system meets ASHRAE Standard 15 or, any local codes, regarding Safety. The ASHRAE Standard 15-2013 provides safeguards for life, limb, health, property, and prescribes safety requirements.

  • Page 133: Modifications Of Charging Refrigerants Other Than Those Specified By Johnson Controls

    FIELD WORK INSTRUCTIONS 6.2 Modifications of Charging Refrigerants Other than Those Specified by Johnson Controls DANGER Johnson Controls’ air conditioners are designed and manufactured based on using specified refrigerants. The applicable refrigerants are specified for each unit’s models. Using any refrigerants besides the specified refrigerants may cause mechanical problems, malfunction, and failure, and in the worst case, it endangers safety seriously and may cause a fire or an explosion.

  • Page 134: Maintenance Work

    FIELD WORK INSTRUCTIONS 6.3 Maintenance Work (1) For Outdoor Unit and Indoor Unit (a) Fan and Fan Motor • Lubrication - All fan motors are pre-lubricated and sealed at the factory. Therefore, no lubricating maintenance is required. • Sound and Vibration - Inspect for abnormal sounds or vibration. •...

  • Page 135: Service And Maintenance Record By 7-Segment Display

    FIELD WORK INSTRUCTIONS 6.4 Service and Maintenance Record by 7-Segment Display Refer to the Service Manual for Outdoor Unit. SM-16005-rev.2...

  • Page 136: Service And Maintenance Record By Wired Controller

    FIELD WORK INSTRUCTIONS 6.5 Service and Maintenance Record by Wired Controller Data Sheet for Checking by Wired Controller I.U.: Indoor Unit, O.U.: Outdoor Unit, Comp.: Compressor Time I.U. Model I.U. Serial No. I.U. No. / Alarm Code Check Check Mode Mode 1 •...
  • Page 137 FIELD WORK INSTRUCTIONS P Compressor Condition Indication (Reference) Comp. Current Accumulated Operation Time of Comp. Q Sensor Condition Indication Motion Sensor Response Rate Radiation Sensor Temp. Motion Sensor1 Response Rate Motion Sensor2 Response Rate Motion Sensor3 Response Rate Motion Sensor4 Response Rate Setting Temp.

  • Page 138: Service And Maintenance Record

    FIELD WORK INSTRUCTIONS 6.6 Service and Maintenance Record Service and Maintenance Record Check Item Action Judgment Is service space sufficient? YES or NO Short Circuit of Discharged Air? YES or NO Any Heat Influence? YES or NO Is ground wiring connected? YES or NO Refrigeration Piping GOOD or NOT GOOD...

  • Page 139: Saturation Curve For Refrigerant

    FIELD WORK INSTRUCTIONS 6.7 Saturation Curve for Refrigerant R410A ‐50 ‐25 Saturation Temperature (Liquid) [ SM-16005-rev.2...

  • Page 140: Mollier Chart For R410A

    FIELD WORK INSTRUCTIONS 6.8 Mollier Chart for R410A 6-10 SM-16005-rev.2...

  • Page 141: Service Parts List

    SERVICE PARTS LIST 7. Service Parts List SM-16005-rev.2...
  • Page 142 SERVICE PARTS LIST Refer to the Service Parts List for Ducted Medium Static (EconoFresh). SM-16005-rev.2...
  • Page 144 © 2016 Johnson Controls, Inc. SM-16005-rev.2 Code No. LIT-12012293 Revised February 2019...

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