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Technibel Climatisation GRFMI 708 R7I Service Manual & Test Run Service Manual

2 way v.r.f. dc inverter-a- r410a- outdoor unit
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TEST RUN SERVICE MANUAL
2 WAY V.R.F. DC INVERTER-A- R410A- OUTDOOR UNIT
April 2008

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Summary of Contents for Technibel Climatisation GRFMI 708 R7I

  • Page 1 TEST RUN SERVICE MANUAL 2 WAY V.R.F. DC INVERTER-A- R410A- OUTDOOR UNIT April 2008...
  • Page 2 ** Indoor Unit Types not available Outdoor Units GRFMI DC Inverter units GRFMI 708 R7I, GRFMI 908 R7I, GRFMI 1158 R7I, GRFMI 1308 R7I, GRFMI 1408 R7I Refrigerant R410A is used in the Outdoor units . KFMNC Optional controllers Wired Remote Controller...

  • Page 3: Table Of Contents

    CONTENTS 1. Address Settings (Outdoor Units) ............1-1 1.

  • Page 4: Address Settings

    2-WAY MULTISET VRF SYSTEM Address Settings 1. Address Settings (Outdoor Units) 1. Test Run ............1-2 2.

  • Page 5: Test Run

    2-WAY MULTISET VRF SYSTEM 1. Test Run Address Settings Test Run Procedure Use caution when making the settings. If there are duplicated system addresses setting at Recheck the items to check before the test run. R.C. ADD switch, or if the settings for the Nos. of the indoor units are not consistent, an alarm will occur and the system will not start.

  • Page 6: Settings Of Indoor Unit Control Pcb

    2-WAY MULTISET VRF SYSTEM 2. Settings of Indoor Unit Control PCB Address Settings A. ADD (CN100) OAC (CN105) AP (CN102) MODE (CN101) TERMINAL (2P, black) STOP (CN104) RC (CN006) RUN (CN103) CHK (CN023) TEST (CN022) LED1, 2 R.C. ADD (S002) (D72, D75) (Rotary switch, black) No.

  • Page 7: Auto Address Setting

    2-WAY MULTISET VRF SYSTEM 3. Auto Address Setting Address Settings Auto Address Setting Basic wiring diagram: Example (1) • If link wiring is not used (The inter-unit control wires are not connected to multiple refrigerant systems.) Indoor unit addresses can be set without operating the compressors. No.
  • Page 8 2-WAY MULTISET VRF SYSTEM 3. Auto Address Setting Address Settings Basic wiring diagram: Example (2) • If link wiring is used * When multiple outdoor main units exist, remove the socket that is used to short-circuit the terminal plug (CN003) from all No.
  • Page 9 2-WAY MULTISET VRF SYSTEM 3. Auto Address Setting Address Settings Case 2 G Indoor and outdoor unit power can be turned ON for each system separately. Indoor unit addresses can be set without operating the compressors. Automatic Address Setting from Outdoor Unit 1.
  • Page 10 2-WAY MULTISET VRF SYSTEM 3. Auto Address Setting Address Settings Case 3A Automatic Address Setting in Heating Mode G Indoor and outdoor unit power cannot be turned ON for each system separately. In the following, automatic setting of indoor unit addresses is not possible if the compressors are not operating. Therefore perform this process only after completing all refrigerant tubing work.
  • Page 11 2-WAY MULTISET VRF SYSTEM 3. Auto Address Setting Address Settings Case 3B Automatic Address Setting in Cooling Mode G Indoor and outdoor unit power cannot be turned ON for each system separately. In the following, automatic setting of indoor unit addresses is not possible if the compressors are not operating. Therefore perform this process only after completing all refrigerant tubing work.
  • Page 12 2-WAY MULTISET VRF SYSTEM 3. Auto Address Setting Address Settings Display during automatic address setting G On outdoor main unit PCB * Do not short-circuit the automatic address setting pin (CN100) again while automatic address set- ting is in progress. Doing so will cancel the setting operation and will cause LEDs 1 and 2 to turn OFF.
  • Page 13 2-WAY MULTISET VRF SYSTEM 3. Auto Address Setting Address Settings Checking the indoor unit addresses Use the remote controller to check the indoor unit address. <If 1 indoor unit is connected to 1 remote controller> 1. Press and hold the button and button for 4 seconds or longer.

  • Page 14: Remote Controller Functions

    2-WAY MULTISET VRF SYSTEM Remote Controller Functions 2. Remote Controller Functions 1. Remote Controller Test Run Settings ........2-2 2.

  • Page 15: Remote Controller Test Run Settings

    2-WAY MULTISET VRF SYSTEM 1. Remote Controller Test Run Settings Remote Controller Functions Wired Remote Controller Test Run Settings 1. Press the remote controller button for 4 seconds or longer. 2. “TEST” appears on the LCD display while the test run is in progress. 3.

  • Page 16: Simple Settings Function

    2-WAY MULTISET VRF SYSTEM 2. Simple Settings Function Remote Controller Functions [Simple Settings Function] • This allows the filter lifetime, operating mode priori- ty change, central control address, and other set- tings to be made for an individual or group-control indoor unit to which the remote controller used for simple settings is connected.
  • Page 17 2-WAY MULTISET VRF SYSTEM 2. Simple Settings Function Remote Controller Functions List of Simple Setting Items 0000 Not displayed 0001 150 hours 0002 2,500 hours Filter sign ON time (filter lifetime) 0003 5,000 hours 0004 10,000 hours 0005 Use the filter clogging sensor. 0000 Standard (setting at time of shipping) Degree of filter fouling...

  • Page 18: Detailed Settings Function

    2-WAY MULTISET VRF SYSTEM 3. Detailed Settings Function Remote Controller Functions • This allows the system address, indoor unit address, and other settings to be made for the indi- vidual or group-control indoor unit to which the remote controller used for detailed settings is con- nected.
  • Page 19 2-WAY MULTISET VRF SYSTEM 3. Detailed Settings Function Remote Controller Functions List of Detailed Setting Items Setting data Item code Item Description escription Description 1-Way Air Discharge 4-Way Air Discharge 2-Way Air Discharge 0000 0001 0002 Semi-Concealed Semi-Concealed Semi-Concealed (CAFM1V) (CAFM) 1-Way Air Discharge Concealed-Duct High...
  • Page 20 2-WAY MULTISET VRF SYSTEM 3. Detailed Settings Function Remote Controller Functions Setting data Item Item code Description 0000 0000 5 minutes Forced thermostat ON (1B) time 0001 4 minutes Cooling discharge temperature shift 0010 Heating discharge temperature shift 0010 0001 0002 Temperature shift for cooling/heating change...
  • Page 21 2-WAY MULTISET VRF SYSTEM 3. Detailed Settings Function Remote Controller Functions Setting data Item Item code Description 0000 No forced operation 0001 Forced operation for 1 minute Automatic drain pump operation 0060 Continuous operation 0000 None Ventilation fan operation 0001 Ventilation fan operated by remote controller. 0000 Not used.
  • Page 22 2-WAY MULTISET VRF SYSTEM 3. Detailed Settings Function Remote Controller Functions Setting data Item Item code Description DC fan tap Purpose operating mode 0000 Standard Standard (setting at time of shipping) High ceiling use High ceiling setting 1 (with standard panel) 0001 For low Ultra long-life filter, oil guard panel, ammonia Fan tap setting...
  • Page 23 2-WAY MULTISET VRF SYSTEM 3. Detailed Settings Function Remote Controller Functions Selecting the DC fan motor tap (when setting with the remote controller) <Procedure> Stop the system before performing these steps. Press and hold the buttons simultaneously for 4 seconds or longer. If group control is in effect, press the button and select the address (unit No.) of the indoor unit to set.
  • Page 24 2-WAY MULTISET VRF SYSTEM 3. Detailed Settings Function Remote Controller Functions Selecting the DC fan motor tap (when setting from the PCB) 4-way cassette type <Procedure> Stop the system before performing these steps. Open the electrical component box cover, then check the indoor unit control PCB. (Fig. 4) Connect the jumper connector (2P: yellow) which was supplied with the accessory to the correct connector pin on the indoor unit control PCB according to the setting number which was confirmed in Table 1 (Table of DC Fan Motor Settings).

  • Page 25: Remote Controller Servicing Functions

    2-WAY MULTISET VRF SYSTEM 4. Remote Controller Servicing Functions Remote Controller Functions Operation with Press and hold the button Test run forced thermostat for 4 seconds or longer. Sensor Temperature Press and hold th Current operation is temperature display from each maintained.
  • Page 26 4. Remote Controller Servicing Functions Test Run Function Operates the unit with the thermostat forced ON. <Procedure> Press and hold the button for 4 seconds or longer. “Test” appears on the remote controller LCD display (Fig. 5). Start operation. Press the button to return to normal remote controller display.
  • Page 27 2-WAY MULTISET VRF SYSTEM 4. Remote Controller Servicing Functions Remote Controller Functions I Sensor Temperature Display Function (displayed regardless of whether unit is operating or stopped) The procedure below displays the sensor tempera- tures from the remote controller, indoor unit, and out- door unit on the remote controller.

  • Page 28: Trouble Diagnosis

    2-WAY MULTISET VRF SYSTEM Trouble Diagnosis 3. Trouble Diagnosis 1. Contents of Remote Controller Switch Alarm Display ......3-2 2.

  • Page 29: Contents Of Remote Controller Switch Alarm Display

    2-WAY MULTISET VRF SYSTEM 1. Contents of Remote Controller Switch Alarm Display Trouble Diagnosis Blinking: OFF: Wired Wireless remote remote controller control receiver display display Possible cause of malfunction Error in receiving serial communication signal. Remote controller is Serial detecting error signal from (Signal from main indoor unit in case of group control) communication indoor unit.
  • Page 30 1. Contents of Remote Controller Switch Alarm Display Blinking: OFF: Wired Wireless remote remote controller control receiver display display Possible cause of malfunction Compressor 1 (INV) discharge temp. sensor Outdoor unit Thermistor fault Compressor 2 (constant speed) discharge temp. sensor Compressor 3 (constant speed) discharge temp.

  • Page 31: Outdoor Unit Control Pcb Led Display

    2-WAY MULTISET VRF SYSTEM 2. Outdoor Unit Control PCB LED Display Trouble Diagnosis : ON : Blinking : OFF) LED (RED) Display meaning After the power is turned ON (and automatic address setting is not in progress), no communica- tion with the indoor units in that system is possible. (Both ON) After power is turned ON (and automatic address setting is not in progress), 1 or more indoor units are confirmed in that system;...

  • Page 32: Pcb Settings

    2-WAY MULTISET VRF SYSTEM PCB Settings 4. PCB Settings 1. Outdoor Unit Control PCB ..........4-2 4 - 1 4 - 1...

  • Page 33: Outdoor Unit Control Pcb

    2-WAY MULTISET VRF SYSTEM 1. Outdoor Unit Control PCB PCB Settings CR-C1155DXHN8 S002 S003 S004 S005 Alarm LED (LED1, 2) A. ADD (CN100) pin S006 OAC (CN105) pin S010 MODE (CN101) pin AP (CN102) pin S007 STOP (CN104) pin CHK (CN023) pin RUN (CN103) pin EEPROM memory IC (IC018)
  • Page 34 1. Outdoor Unit Control PCB Functions (for CR-CHDXP280B) 2P plug (white): Automatic address setting pin Automatic address setting • Short-circuit this pin for 1 second or longer to automatically set the addresses at the (CN100) indoor units that are connected to that outdoor unit and are within the same system. •...
  • Page 35 2-WAY MULTISET VRF SYSTEM 1. Outdoor Unit Control PCB PCB Settings Terminal plug 3P plug (black): For communications circuit impedance matching • A connecting socket (3P, black) is attached to the terminal plug at the time of shipment from the factory. •...
  • Page 36 1. Outdoor Unit Control PCB Table 1. Setting the System Address [S002: Rotary switch (black), S003: 2P DIP (blue)] S003 setting Outdoor system address S002 setting 1P (10s digit) 2P (20s digit) 1 refrigerant system only Link wiring Table 3. Setting the Number of Outdoor Units Table 2.

  • Page 37: Self-Diagnostics Function Table

    2-WAY MULTISET VRF SYSTEM Self-Diagnostics Function Table 5. Self-Diagnostics Function Table 1. Self-Diagnostics Function Table ......... . 5-2 5 - 1...
  • Page 38 2-WAY MULTISET VRF SYSTEM 1. Self-Diagnostics Function Table Self-Diagnostics Function Table Self-Diagnostics Function Table • Causes and corrections in instances when automatic address setting cannot be started Trouble Cause and correction The power LED (D53) on the outdoor unit control PCB does not turn ON. Check for any errors in the power wiring to the outdoor unit, and check for a missing phase.
  • Page 39 2-WAY MULTISET VRF SYSTEM 1. Self-Diagnostics Function Table Self-Diagnostics Function Table Check items Check that the indoor unit power is turned ON. Check that the inter-unit control wiring is connected correctly. (Check that there are no open circuits, short circuits, terminal plugs, incorrect wiring to the remote controller terminals, or similar problems.) Check that the remote controller wiring is connected correctly.
  • Page 40 1. Self-Diagnostics Function Table • The outdoor unit maintenance remote controller can be used to check the alarm display. The number of times that LED 1 and 2 blink on the outdoor unit control PCB can be used to check the alarm displa (Refer to “Checking the LED 1 and 2 Alarm Display on the Outdoor Unit Control PCB.”) Alarm code Alarm meaning...

  • Page 41: Service Checker

    2-WAY MULTISET VRF SYSTEM Service Checker 6. Service Checker 1. Outdoor Unit Maintenance Remote Controller ......6-2 6 - 1...

  • Page 42: Outdoor Unit Maintenance Remote Controller (Acc-Ch80U1)

    2-WAY MULTISET VRF SYSTEM 1. OUTDOOR UNIT MAINTENANCE REMOTE CONTROLLER Service Checker 1-1. Overview About the outdoor unit maintenance remote controller The outdoor unit utilizes non-volatile memory (EEPROM) on its PCB. This allows EEPROM data to replace the setting switches that were present on previous PCBs.
  • Page 43 2-WAY MULTISET VRF SYSTEM 1. OUTDOOR UNIT MAINTENANCE REMOTE CONTROLLER Service Checker I Temperature monitor Displays the temperature from each indoor/outdoor sensor. I Outdoor unit alarm history monitor Displays the outdoor unit alarm history. I Setting the outdoor unit EEPROM data Settings mode 1 and settings mode 2 can be used to make outdoor unit EEPROM data settings.
  • Page 44 2-WAY MULTISET VRF SYSTEM 1. OUTDOOR UNIT MAINTENANCE REMOTE CONTROLLER Service Checker Display (functions) ● The item codes can be changed with the buttons. Item code Item Remarks Outdoor unit alarm Alarm code display No. of connected indoor units Quantity Unit Nos.
  • Page 45 2-WAY MULTISET VRF SYSTEM 1. OUTDOOR UNIT MAINTENANCE REMOTE CONTROLLER Service Checker XX-YY R.C. Displays the outdoor unit sub-bus address which is currently selected. XX = Outdoor unit system address (1 – 30) YY = Outdoor unit address (1 – 4) The locations where are displayed as shown on Fig.
  • Page 46 2-WAY MULTISET VRF SYSTEM 1. OUTDOOR UNIT MAINTENANCE REMOTE CONTROLLER Service Checker Concerning the 7-segment 4-digit display of remote controller timer time The unit Nos. of connected units are indicated by four 7-segment digits and a colon. Display of unit Nos. 1 Meaning of colon 1 –...
  • Page 47 2-WAY MULTISET VRF SYSTEM 1. OUTDOOR UNIT MAINTENANCE REMOTE CONTROLLER Service Checker 1-4. Monitoring Operations Display the indoor unit and outdoor unit sensor temperatures. <Operating procedure> Press and hold the (CHECK) and (CL) buttons simultaneously for 4 seconds or longer to engage temperature monitor mode. During temperature monitoring, “Service Monitor”...
  • Page 48 2-WAY MULTISET VRF SYSTEM 1. OUTDOOR UNIT MAINTENANCE REMOTE CONTROLLER Service Checker 1-5. Outdoor Unit Alarm History Monitor Recalls and displays the outdoor unit alarm history. This is for the outdoor unit only. Indoor unit alarms • cannot be recalled. The indoor unit alarm history can be viewed on the •...
  • Page 49 2-WAY MULTISET VRF SYSTEM 1. OUTDOOR UNIT MAINTENANCE REMOTE CONTROLLER Service Checker 1-6. Setting the outdoor unit EEPROM data This function is used to make the outdoor unit EEP- ROM data settings. Setting mode 1 Press the (CHECK) button and the (VENTILATION) button simultaneously for 4 seconds or longer.
  • Page 50 2-WAY MULTISET VRF SYSTEM 1. OUTDOOR UNIT MAINTENANCE REMOTE CONTROLLER Service Checker Setting mode 2 Press the (CHECK) button, (SET) button and the (CL) button simultaneously for 4 seconds or longer. Press the temperature setting buttons to change the item code. The item codes and setting data are shown in the table below.

  • Page 51: Trouble Diagnosis

    2-WAY MULTISET VRF SYSTEM Trouble Diagnosis 7. Trouble Diagnosis 1.2-WAY VRF DCI Alarm Codes ..........7-2 2.
  • Page 52 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis W-2WAY MULTISET Trouble Diagnosis Alarm code Alarm meaning Page Outdoor unit failed to receive serial communication signals from indoor unit. Automatic address setting start is prohibited. Automatic address setting alarm (too few units) Automatic address setting alarm (too many units) No indoor units at automatic address setting.
  • Page 53 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis E06 alarm E06 Alarm Alarm code Alarm meaning Outdoor unit failed to receive serial communication signals from indoor unit. Alarm conditions Outdoor unit failed to receive serial communication signals from indoor unit. Probable cause (1) The indoor unit power was cut OFF after initial communications were completed.
  • Page 54 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis E16 Alarm Alarm code Alarm meaning Automatic address setting alarm (too many units) Alarm conditions • The number of indoor units was too many when automatic address setting was performed. •...
  • Page 55 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis E25 Alarm Alarm code Alarm meaning Outdoor unit address setting failure (duplication) Alarm conditions Communication by the outdoor unit main/sub control wiring was received that contained the same address as that unit 5 times or more within 3 minutes. Probable cause The unit number is set incorrectly.
  • Page 56 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis F04, F05, F22 Alarm Alarm code F04, F05, F22 Alarm meaning Compressor 1 discharge temperature sensor (DISCH1) trouble, compressor 2 discharge temperature sensor (DISCH2) trouble, Compressor 3 discharge temperature sensor (DISCH3) trouble. Alarm conditions (1) Discharge temp.
  • Page 57 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis (3) Leakage from the discharge tube check valve Trouble: Although the other compressor is operating and this compressor is stopped, the discharge temperature of this compressor rises together with the temperature of the other compressor.
  • Page 58 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis Alarm meaning Outdoor air temperature sensor (AIR TEMP) trouble Alarm conditions (1) A/D step is 10 steps or less (short circuit). (2) A/D step is 1014 steps or more (open circuit) Probable cause (1) Sensor malfunction (including connector) (2) PCB malfunction...
  • Page 59 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis F31 Alarm Alarm code Alarm meaning Outdoor unit non-volatile memory (EEPROM) trouble Alarm conditions (1) Non-volatile memory is not present when power initialization occurs. (2) Read values do not match after writing to non-volatile memory is complete. Probable cause (1) Memory was not inserted after the PCB was replaced.
  • Page 60 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis H06 Alarm Alarm code Alarm meaning Abnormal low-pressure drop Alarm conditions A pre-trip occurs during the unit’s operation when the low-pressure sensor installed at constant low-pressure parts detects a pressure of 0.05 MPa or less continuously for 2 minutes, or an instantaneous pressure of 0.02 MPa or less.
  • Page 61 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis H11, H12, H21, H22 Alarm Alarm code H11, H12, H21, H22 H11: Compressor 2 (constant speed) overcurrent alarm Alarm meaning H12: Compressor 2 (constant speed) lock current alarm H21: Compressor 3 (constant speed) overcurrent alarm H22: Compressor 3 (constant speed) lock current alarm Alarm conditions...
  • Page 62 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis H13, H23 Alarm Alarm code H13, H23 Alarm meaning Compressor 2 CT sensor (CT2) disconnected or short-circuit; Compressor 3 CT sensor (CT3) disconnected or short-circuit. Alarm conditions The current is still 1.5 A or less when 2 seconds or longer has elapsed after output from that compressor started.
  • Page 63 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis H31 Alarm Alarm code Alarm meaning HIC trouble alarm Alarm conditions This alarm occurs when the microcomputer identifies a trouble signal (indicating abnormal HIC temperature or other trouble) from the HIC. The HIC judges the current and temperature, and outputs the trouble signal.
  • Page 64 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis L06 Alarm Alarm code Alarm meaning Duplicated indoor unit priority (alarm at non-priority indoor units and outdoor unit) Alarm conditions Multiple indoor units set as the priority unit were detected in the system. Probable cause More than one indoor unit is set as the priority unit in the system.
  • Page 65 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis P03, P17, P18 Alarm Alarm code P03, P17, P18 Alarm meaning Compressor 1 discharge temperature trouble; Compressor 2 discharge temperature trouble; Compressor 3 discharge temperature trouble Alarm conditions Pre-trip stop at 106°C or higher This alarm occurs when the pre-trip counter reaches 4.
  • Page 66 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis P04 Alarm Alarm code Alarm meaning High-pressure switch activated. Alarm conditions When the electrical circuit of the high-pressure switch is activated, then depending on the pressure, the terminals may be short-circuited. If the pressure is 3.20 MPa or higher, the terminals will be short-circuited.
  • Page 67 2-WAY MULTISET VRF SYSTEM 1. 2WAY VRF DCI Alarm Codes Trouble Diagnosis P05 Alarm Alarm code Alarm meaning Reverse phase (or missing phase) detected Alarm conditions This alarm occurs when a reverse phase or missing phase is detected in the L1-L2-L3-N phases. Probable cause Reverse phase or missing phase in the L1-L2-L3-N phases Check...
  • Page 68 1. 2WAY VRF DCI Alarm Codes Alarm Codes P22 Alarm Alarm code Alarm meaning Fan motor trouble Alarm conditions Fan motor start failure, fan motor Hall IC input failure Probable cause Possible causes are a Hall IC input circuit failure and a fan HIC failure. Check Check the fan motor wiring, the Hall IC wiring, and the connector connections.

  • Page 69: Blinking (Inspection) Display On The Remote Controller

    2-WAY MULTISET VRF SYSTEM 2. Blinking (Inspection) Display on the Remote Controller Trouble Diagnosis Currently the blinking inspection display can be displayed only on the wired remote CAUTION controller and system remote controller. Blinking inspection display (1) (Automatic backup) Alarm code (Blinking inspection display) Alarm meaning...
  • Page 70 2. Blinking (Inspection) Display on the Remote Controller Blinking inspection display (2) (compressor magnet SW seizing detection) Alarm code (Blinking inspection display) Alarm meaning Compressor magnet SW seizing detected Status: The compressor and outdoor unit fan motor continue to run even though all indoor units within that refrigerant tubing system are stopped.
  • Page 71 R.D. 28 Reyrieux BP 131-01601 Tré voux CEDEX France Té l. 04.74.00.92.92 - Fax 04.74.00.42.00 R.C.S. Bourg-en-Bresse B 759 200 728...

This manual is also suitable for:

Grfmi 908 r7iGrfmi 1158 r7iGrfmi 1408 r7iGrfmi 1308 r7i

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