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14

CAUTION

Be sure to attach the sealing material and putty (field supplied) to hole of wiring to prevent the infiltration 
of water as well as any insects and other small creatures from outside. Otherwise a short-circuit may 
occur inside the electric parts box.
When clamping the wirings, be sure no pressure is applied to the wire connections by using the included 
clamp to make appropriate clamps. Also, when wiring, make sure the lid on the control box fits snugly by 
arranging the wirings neatly and attaching the service lid firmly. When attaching the service lid, make sure 
no wirings get caught in the edges. Pass wiring through the wiring through holes to prevent damage to 
them. 
Make sure the remote controller wiring, and transmission wire the wiring between the units, and other elec-
trical wiring do not pass through the same locations outside the machine, separating them by at least 
50mm, otherwise electrical noise (external static) could cause mistaken operation or breakage.
Use only specified wire and tightly connect wires to terminals. Be careful wires do not place external stress 
on terminals. Keep wiring in neat order and so as not to obstruct other equipment such as popping open the 
service cover. Make sure the cover closes tight. Incomplete connections could result in overheating, and in 
worse case, electric shock or fire.

[ PRECAUTIONS ]

1.

Use round crimp-style terminals for connecting wires to the power supply terminal board.

(Refer to Fig. 21)

If unavailable, observe the following points when wiring.

Do not connect wires of different gauge to the same power supply terminal.
(Looseness in the connection may cause overheating.)

When connecting wires of the same gauge, connect them according to Fig. 22.

Use the specified electric wire. Connect the wire securely to the terminal. Lock the wire down without 
applying excessive force to the terminal. (Tightening torque: 131N·cm ±10 %)

2. Tightening torque for the terminal screws.

Use the correct screwdriver for tightening the terminal screws. If the blade of screwdriver is too small, the 
head of the screw might be damaged, and the screw will not be properly tightened.

If the terminal screws are tightened too hard, screws might be damaged.

Refer to the table below for the tightening torque of the terminal screws.

3.

Do not connect wires of different gauge to the same ground terminal. Looseness in the connection may 
deteriorate protection.

4.

Keep transmission wiring at least 50mm away from power supply wiring. The equipment may malfunction 
if subjected to electrical (external) noise.

5.

For remote controller wiring, refer to the “INSTALLATION MANUAL OF REMOTE CONTROLLER” 
attached to the remote controller.

6. Never connect power supply wiring to the terminal block for remote controller. A mistake of the 

sort could damage the entire system.

Terminal

Size

Tightening torque

Remote controller, Transmission wiring and 
Forced off terminal block (6P)

M3.5

0.79 – 0.97N·m

Power supply and Ground terminal block (3P)

M4

1.18 – 1.44N·m

Electric wire

Round crimp-style terminal

Attach insulation sleeve

Fig. 21

01_EN_3P156215-10P.fm  Page 14  Wednesday, April 2, 2008  11:47 AM

Summary of Contents for VRV FXAQ20MAVE

Page 1: ...EREIT AUF LIRE SOIGNEUSEMENT CES INSTRUCTIONS AVANT L INSTALLATION CONSERVER CE MANUEL A PORTEE DE MAIN POUR REFERENCE ULTERIEURE LEA CUIDADOSAMENTE ESTAS INSTRUCCIONES ANTES DE INSTALAR GUARDE ESTE M...

Page 2: ...ento s normativo s desde que estes sejam utilizados de acordo com as nossas instru es overholder f lgende standard er eller andet andre retningsgivende dokument er forudsat at disse anvendes i henhold...

Page 3: ...VE FXMQ125MFV1 FXMQ200MFV1 FXMQ250MFV1 FXAQ20MHV1 FXAQ25MHV1 FXAQ32MHV1 FXAQ40MHV1 FXAQ50MHV1 BEVQ50MVE FXLQ20MHV1 FXLQ25MHV1 FXLQ32MHV1 FXLQ40MHV1 FXLQ50MHV1 FXMQ40MAVE FXMQ50MAVE FXMQ63MAVE FXMQ80MA...

Page 4: ...work Do not try to install the machine yourself Improper installation may result in water leakage electric shocks or fire Perform installation work in accordance with this installation manual Imprope...

Page 5: ...ence or noise Depending on the radio waves a distance of 1 meter may not be sufficient enough to eliminate the noise Remote controller wireless kit transmitting distance can result shorter than expect...

Page 6: ...may malfunction Where the air contains high levels of salt such as that near the ocean and where voltage fluctuates greatly such as that in factories Also in vehicles or vessels When selecting install...

Page 7: ...e units may drop vibrate or make noise Is the gas leak test finished It may result in insufficient cooling Is the unit fully insulated Condensate water may drip Does drainage flow smoothly Condensate...

Page 8: ...port the full weight of the unit and reinforce it with boards and beams etc if needed before proceeding with the installation Also reinforce the place to prevent vibration and noise before installing...

Page 9: ...er side for a total of 8 screws 20 32 type 9 screws 40 63 type of the recommended installation cleat position on the included paper pattern for installation 3 If using bolts attach using a M8 M10 bolt...

Page 10: ...he direction of the arrows 4 Making sure not to catch the horizontal flaps remove the front grill by pulling in the direction of the arrow Remove the drain plug the insulation tubing and the drain hos...

Page 11: ...pply ground wirings that is on the other side of the power supply ground wirings Then fix them securely on the refrigerant pipe Seal the piping through hole with putty corking material 9 Push on both...

Page 12: ...not the same CAUTION Use a pipe cutter and flare suitable for the type of refrigerant Apply ester oil or ether oil around the flare section before connecting To prevent dust moisture or other foreign...

Page 13: ...g after having carried out nitrogen substitution NOTE 1 or while inserting nitrogen into the refrigerant piping NOTE 2 Once this is done connect the indoor unit with a flared or a flanged connection N...

Page 14: ...cted to the indoor unit i e for embedded piping etc use a commercially available hard vinyl chloride pipe joint nominal diameter 13mm Refer to Fig 18 Insulating tubing tape Insulating tubing tape Loca...

Page 15: ...may cause a malfunction A circuit breaker capable of shutting down power supply to the entire system must be installed Refer to the installation manual attached to the outdoor unit for the size of po...

Page 16: ...ring using the included clamp small 5 and then firmly secure using the included clamp small 5 according to the figure Refer to Fig 20 Model Power supply wiring Remote controller wiring Transmission wi...

Page 17: ...er supply terminal board Refer to Fig 21 If unavailable observe the following points when wiring Do not connect wires of different gauge to the same power supply terminal Looseness in the connection m...

Page 18: ...P2 F1 F2 T1 T2 LN LN P1 P2 P1 P2 F1 F2 T1 T2 L N Outdoor unit No 1 System Indoor unit A Indoor unit B Indoor unit C Most downstream Indoor unit Power supply 220 240V 50Hz or 220V 60Hz Power supply 22...

Page 19: ...heses 9 1 SETTING AIR FILTER SIGN Remoto controllers are equiped with liquid crystal display air filter sighs to display the time to clean air filters Change the SECOND CODE NO according to Table 3 de...

Page 20: ...to the terminal block 6P for remote controller P1 P2 in the control box There is no polarity Refer to Fig 24 and section 7 3 for the wiring size 9 4 COMPUTERISED CONTROL FORCED OFF AND ON OFF OPERATI...

Page 21: ...ller will flash when an malfunction occurs Check the malfunction code on the liquid crystal display to identify the point of trouble An explanation of malfunction codes and the corresponding trouble i...

Page 22: ...0804 HT 3P156215 10P EM08A049...

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