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Fujitsu 9370083002 Installation Instruction Sheet

Cassette type (vrf system)
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Refrigerant
R407C&R22
INSTALLATION INSTRUCTION SHEET
(PART NO. 9370083002)
This air conditioner uses R407C and R22.
CONTENTS .................................................................... 1
SAFTY PRECAUTIONS .................................................. 1
STANDARD PARTS ........................................................ 2
SELECTING THE MOUNTING POSITION ..................... 2
INSTALLATION PROCEDURE ....................................... 3
1. INDOOR UNIT INSTALLATION .................................. 3
2. INSTALLING DRAIN PIPE .......................................... 3
3. CONNECTION PIPE REQUIREMENT ....................... 4
For authorized service personnel only.
This mark indicates procedures which, if improperly performed, might lead to the death or serious injury of
WARNING!
the user.
This mark indicates procedures which, if improperly performed, might possibly result in personal harm to the
CAUTION!
user, or damage to property.
1 For the air conditioner to operate satisfactorily, install it as outlined in this installation instruction sheet.
2 Connect the indoor unit and outdoor unit with the air conditioner piping and cords available from our stand-
ard parts. This installation instruction sheet describes the correct connections using the installation set
available from our standard parts.
3 Installation work must be performed in accordance with national wiring standards by authorized personnel
only.
4 If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in contact with
a flame, it produces a toxic gas.
5 Do not turn on the power until all installation work is complete.
6 When installing or moving the air conditioner, use care not to charge it with the wrong refrigerant (such as
R407C or R22).
Observe the following precautions when using R407C refrigerant.
Do not use mineral oil on flared part.
Prevent mineral oil from getting into the system as this would reduce the lifetime of the unit.
Never use piping which has been used for previous installations. Only use parts that are delivered with the
unit.
• Be careful not to scratch the air conditioner when handling it.
• After installation, explain correct operation to the customer, using the operating manual.
• Let the customer keep this installation instruction sheet because it is used when the air conditioner is
serviced or moved.
Cassette Type (VRF System)
Page
4. CONNECTING THE PIPING ....................................... 4
6. ELECTRICAL REQUIREMENT ................................... 6
7. ELCTRICAL WIRING .................................................. 6
8. CIRCUIT BOARD SETTING . ..................................... 8
9. GRILLE INSTALLATION ........................................... 10
10. TEST OPERATION ................................................. 13
11. AN ERROR DISPLAY .............................................. 14
WARNING
CAUTION
Page
En-1

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  Summary of Contents for Fujitsu 9370083002

  • Page 1: Table Of Contents

    Refrigerant Cassette Type (VRF System) R407C&R22 INSTALLATION INSTRUCTION SHEET (PART NO. 9370083002) This air conditioner uses R407C and R22. Page Page CONTENTS ..............1 4. CONNECTING THE PIPING ........4 SAFTY PRECAUTIONS ..........1 5. INSTALLING THE COUPLER HEAT INSULATION ..5 6.
  • Page 2: Standard Parts

    STANDARD PARTS The following installation parts are supplied. Use them as required. INDOOR UNIT ACCESSORIES GRILLE ACCESSORIES Name and Shape Q’ty Name and Shape Q’ty Name and Shape Q’ty Bolt Coupler heat Template insulation Washer Special nut A Binder (large flange) Blower cover insulation Special nut B (small flange)
  • Page 3: Installation Procedure

    INSTALLATION PROCEDURE Install the air conditioner as follows. 1. INDOOR UNIT INSTALLATION (1) Make the holes for installing in the ceiling. (Fig. 4) (2) Install the hanging bolts (M10), refer to the position in Fig. 3. (3) Install special nut A, then special nut B onto the hanging bolt (Fig. 4). (4) Raise the body and mount its hooks onto the hanging bolt between the special nuts.
  • Page 4: Connection Pipe Requirement

    3. CONNECTION PIPE REQUIREMENT (1) Connected to outdoor unit Table 1 unit : mm Capacity of Suction Discharge Liquid Pipe outdoor unit Gas Pipe Gas Pipe ø28.58 (1.2) ø19.05 (1.0) ø12.7 (0.8) ( ) : thickness (2) Connected between two immediately adjacent refrigerant branch kits Table 2 unit : mm Total capacity...
  • Page 5: Installing The Coupler Heat Insulation

    2. CONNECTION PIPES When the flare nut is tightened properly by your hand, hold the Fig. 8 body side coupling with a separate spanner, then tighten with a torque wrench (Fig. 8, Table 5). Holding spanner Fig. 7 Body side Indoor unit Liquid pipe Gas pipe...
  • Page 6: Electrical Requirement

    6. ELECTRICAL REQUIREMENT Table 6 Maximum Power supply H07RN-F or equivalent cord (mm Minimum Shield cord Maximum 1.25 Transmission (LONWORKS cord (mm Minimum 0.75 compatible part) Maximum 1.25 Sheathed vinyl cord or Remote control cable cord (mm Minimum 0.75 Fuse capacity (A) 7.
  • Page 7 Fig. 11 RB unit cord (Heat recovery model only) Terminal board Remote controller Transmission cord Power supply cord Remote control cord Note that the arrangement Refrigerant branch unit of the terminal board may (Heat recovery model only) vary from model to model. 380-415 V 3ø...
  • Page 8: Circuit Board Setting

    8. CIRCUIT BOARD SETTING Set the switch on the circuit board. (1) Indoor unit addresses Rotary switch (SW5) - - - Factory setting “0” When connecting multiple indoor units to one refrigerant system, set the address at SW5 in sequence from 0. (2) Refrigerant circuit address Rotary switch (SW7) - - - Factory setting “0”...
  • Page 9 (3) Remote controller address Rotary switch (SW9) - - - Factory setting “0” When connecting multiple indoor units to one standard wired remote controller, set the address at SW9 in sequence from 0. Fig. 12 Example If 4 indoor units are connected. Indoor unit Indoor unit Indoor unit...
  • Page 10: Grille Installation

    9. GRILLE INSTALLATION 1. INSTALLING BLOWER COVER INSULATION (IN CASE OF 2 OR 3 OUTLET DIRECTION) • Install the blower cover insulation only when the outlet direction Fig. 13 is changed to 2 or 3 direction. Example • Two blower cover insulations are packed with the grille assem- 3 direction bly.
  • Page 11 Installing the grille assembly to the body Install the grille assembly to the body with the four bolts and washers. (1) Lightly tighten the bolts shown in “B” of Fig. 15. Hang the panel. (2) Tighten the other bolts. (3) Tighten all bolts securely. (4) Connect the connector in accordance with part A detail view.
  • Page 12 REMOVING THE INTAKE GRILLE (1) Slide the two grille stoppers inward, then open the intake grille. (2) Remove the grille hook screws, then open the intake grille. (Fig. 19) (3) Open the intake grille so that it is at an angle of 20° to 40°, then remove the grille. Fig.
  • Page 13: Test Operation

    10. TEST OPERATION Supply power to the crankcase heater for 12 hours prior to the start of operation in the winter. The following is the procedure for the test operation. 1. TEST OPERATION USING CIRCUIT BOARD (OUTDOOR UNIT) Refer to the Installation Instruction Sheet for the outdoor unit if the circuit board for the outdoor unit is to be used for the test operation. 2.
  • Page 14: An Error Display

    (2) Standard wireless remote controller Fig. 22 • Press the remote control unit test run button while the air condi- tioner is running. • At the end of test running, press the remote control unit start- stop button (Fig. 22). Operation can be checked by lighting and flashing of the display START/STOP button section OPERATION and TIMER lamps.
  • Page 15 Table 10 Error display Error contents OPERATION TIMER VERTICAL lamp lamp SWING lamp Blinks Blinks Goes off Model information abnormal Blinks Blinks Blinks Power supply frequency abnormal Pulses Blinks Goes off Room temperature thermistor error 2times Pulses Pulses Blinks Indoor unit heat exchanger thermistor (inlet) error 3times 1time Pulses...