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Summary of Contents for Daikin FHQ24MVJU
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Page 1: Installation Manual
INSTALLATION MANUAL SPLIT SYSTEM Air Conditioners MODEL Ceiling suspended type FHQ24MVJU FHQ30MVJU FHQ36MVJU FHQ42MVJU Read these instructions carefully before installation. Keep this manual in a handy place for future reference. This manual should be left with the equipment owner. -
Page 2: Table Of Contents
SPLIT SYSTEM Air Conditioners Installation manual CONTENTS • Refrigerant gas is heavier than air and displaces oxygen. A massive leak could lead to oxygen depletion, espe- 1. SAFETY CONSIDERATIONS ..........2 cially in basements, and an asphyxiation hazard could 2. BEFORE INSTALLATION..........3 occur leading to serious injury or death. -
Page 3: Before Installation
• Before touching electrical parts, turn off the unit. • In a domestic environment this product may cause radio • Do not touch the switch with wet fingers. interference in which case the user may be required to Touching a switch with wet fingers can cause electric shock. take adequate measures. -
Page 4: Selecting Installation Site
2-1 ACCESSORIES Is the unit safely grounded? It may result in electric shock. Check the following accessories are included with your unit. Is wiring size according to The unit may malfunction or specifications? the components burn out. (2) Metal (3) Washer for Name (1) Drain pipe (4) Clamp... -
Page 5: Preparations Before Installation
(2) Make holes for suspension bolts, refrigerant and drain ∗ ∗ pipe, and wire. 1 3/16 or more 1 3/16 or more • Refer to the paper pattern for installation. • Select the location for each of holes and open the holes in the ceiling. -
Page 6: Indoor Unit Installation
NOTE (ii) If it raises too much, a hook stops catching • Use a hole-in anchor for existing ceilings, and a sunken insert, and falling out. Protection net sunken anchor or other field supplied parts for new ceilings to reinforce the ceiling to bear the weight of the unit. Adjust clear- Hook ance from the ceiling before proceeding further. -
Page 7: Refrigerant Piping Work
(5) When hanging the indoor unit main body, be sure to • Before refrigerant pipe work, check which type of refrig- use a level or a plastic tube with water in it to make sure erant is used. the drain piping is set either level or slightly tilted, in Proper operation is not possible if the types of refriger- order to ensure proper drainage. - Page 8 Table 3 Procedure for thermal insulation of gas-side pipe Pipe size Recommended arm length of tool Further tightening angle (in.) (in.) Insulation pipe cover Wind around the for gas pipe (6) φ3/8 60 to 90 degrees Approx. 7 7/8 pipe, beginning at Flare nut connection the base.
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Page 9: Drain Piping Work
Good Top plate Tilt down Wrong Do not lift Make sure there is no slack Top penetration lid Make sure it is not in the water This hole not using it. Cut out Fig. 18 (A figure from an inside bottom) Fig. -
Page 10: Electric Wiring Work
Insert the conduit for power supply wire in the conduit hole, Units Power supply Fan motor and fix it with the lock nut. Voltage Model Volts MCA MFA range FHQ24MVJU Lock nut FHQ30MVJU Max. 253V 60 208-230V Min. 187V FHQ36MVJU FHQ42MVJU Conduit hole MCA : Min. - Page 11 • Use the specified electric wire. Connect the wire securely to Refer to Fig. 27 the terminal. Lock the wire down without applying excessive Power supply Remote controller wire force to the terminal. (Tightening torque: 0.97 ft lbf ±10%) teminal block (2P) Transmission and transmission wire Control box...
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Page 12: Attaching The Suction Grille, The Decoration Panels And The Protection Net
1. When using 1 remote controller for 1 indoor unit. (Normal operation) Decoration panel Power supply 208-230V Outdoor unit 60Hz Control box IN/D OUT/D (ii) Protection net Hook (ii) Indoor unit Remote controller Hook 2. When using 2 remote controllers for 1 indoor unit. (ii) Power supply 208-230V... -
Page 13: Test Operation
11-2 2 remote controllers control Wire specification Sheathed vinyl wire or cable (2 wires) (Controlling 1 indoor unit by 2 remote controllers) Gauge AWG 18-16 • When using 2 remote controllers, one must be set to “MAIN” Length Max. 328 ft. and the other to “SUB”. - Page 14 If nothing is displayed in the remote controller, check the follow- Order Operation ing items before attempting a diagnosis based on the malfunc- Open gas side stop valve. tion code, as they might be a cause. • Disconnected or incorrect wiring (between power supply and Open liquid side stop valve.
- Page 15 Instantaneous overcurrent (outdoor) Possible earth fault or short circuit in the compressor motor. Electric thermal (outdoor) Possible electrical overload in the compressor or cut line in the compressor motor. Stall prevention (outdoor) Compressor possibly locked. Transmission malfunction between the outdoor control units’...
- Page 16 3PN06240-2E EM04A051B (0510)
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