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19

NOTE

1.

A single switch can be used to supply power to units on the same system. However, branch switches and 
branch circuit breakers must be selected carefully. 

2.

Do not ground the equipment on gas pipes, water pipes, lightning rods or telephone ground wires. 
Improper grounding could result in electric shock.

8-3 CONTROL BY 2 REMOTE CONTROLLERS (CONTROLLING 1 INDOOR UNIT BY 

2 REMOTE CONTROLLERS)

When using 2 remote controllers, one must be set to “MAIN” and the other to “SUB”.

MAIN/SUB CHANGEOVER

(1)

Insert a  

 screwdriver into the recess between the 

upper and lower part of remote controller, and 
working from the 2 positions, pry off the upper part.
The remote controller PC board is attached to the upper 
part of the remote controller. 

(Refer to Fig. 28)

(2)

Turn the 

MAIN/SUB changeover

 switch on one of the 

two remote controller PC boards to “S”. 
(Leave the switch of the other remote controller set to 
“M”.)  

(Refer to Fig. 29)

Wiring Method 

(See ‘‘7.ELECTRIC WIRING WORK’’)

(3)

Remove the service lid.

(4) Add remote control 2 (slave) to the terminal block 

(6P) for remote controller (P

1

, P

2

) in the electric 

parts box. 
(There is no polarity.) (Refer to Fig. 26 and section 
7-3 for the wiring size.)

8-4 COMPUTERISED CONTROL (FORCED OFF AND ON/OFF OPERATION) 

(1)

Wire specifications and how to perform wiring 

Connect the input from outside to terminals T1 and T2 of the terminal block (6P).

Wire specification

Sheathed vinyl cord or cable (2 wire)

Gauge

AWG18-16

Length

Max. 328 ft.

External terminal

Contact that can ensure the minimum 
applicable load of 15V DC, 10 mA.

Upper part of 
remote controller

Lower part of 
remote controller

Insert the screwdriver here 
and gently work off the 
upper part of the remote controller.

Fig. 28

S

M

S

S

M

Remote 
controller 
PC board

(Factory setting)

(Only one remote 
controller needs 
to be changed if 
factory settings 
have remained 
untouched.)

Fig. 29

Input A

Fig. 30

F2

T1

T2

FORCED
OFF

01_EN_3PN07521-1.fm  Page 19  Monday, June 19, 2006  5:05 PM

Содержание FXAQ07MVJU

Страница 1: ...4MVJU INSTALLATION MANUAL 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 SYSTEM Invert...

Страница 2: ...n how to operate the unit and keep it maintained Also inform customers that they should store this installation manual along with the operation manual for future reference This air conditioner comes u...

Страница 3: ...ater leakage electric shocks or fire Be sure to use only the specified accessories and parts for installation work Failure to use the specified parts may result in water leakage electric shocks fire o...

Страница 4: ...electrical parts can cause malfunctions smoke or fire Please instruct the customer to keep the area around the unit clean NOTE Install the indoor and outdoor units power supply wiring and connecting...

Страница 5: ...r is suitable for installation in a commercial and light industrial environment If installed as a household appliance it could cause electromagnetic interference WARNING Entrust installation to the pl...

Страница 6: ...s the air passage Where condensate can be properly drained Items to be checked If not properly done what is likely to occur Check Are the indoor and outdoor unit fixed firmly The units may drop vibrat...

Страница 7: ...fore proceeding with the installation Also reinforce the place to prevent vibration and noise before installing The installation pitch can be found on the paper pattern for installation 3 so refer to...

Страница 8: ...at least a 3 1 2 gap between the ceiling and the main unit b Temporarily attach the installation panel 1 at the temporary securing position on the paper pattern for installation 3 and use a level to m...

Страница 9: ...and back left piping Remove the front grill Refer to Fig 7 How to remove the front grill Remove the front grill as described below when securing the indoor unit with screws or when attaching Optional...

Страница 10: ...e refrigerant piping to the wall 7 Pass power supply wiring and ground wiring threaded through conduit For connecting the con duit to the unit see 8 1 HOW TO CONNECT WIRINGS and remote controller wiri...

Страница 11: ...p to approximately 250 F so use insulation which is sufficiently resistant Also in cases where the temperature and humidity of the refrigerant piping sections might exceed 86 F or RH80 reinforce the r...

Страница 12: ...nt to leak Use the flare nut included with the unit Refer to Table 1 for tightening torque Table 1 Not recommended but in case of emergency You must use a torque wrench but if you are obliged to insta...

Страница 13: ...ould be set to 2 9 psi with a pressure reducing valve if brazing while inserting nitrogen into the piping Refer to Fig 14 After checking for gas leaks be sure to insulate the pipe connections using th...

Страница 14: ...eter of drain piping which adapts to the capacity of the unit connected 2 Make sure the drain works properly After drain work is complete perform a drain check by opening the front panel removing the...

Страница 15: ...it for the size of power supply wiring connected to the outdoor unit the capacity of the circuit breaker and switch and wiring instructions Be sure to ground the air conditioner DANGER Do not ground u...

Страница 16: ...22 Transmission wiring and remote controller wiring Unscrew and remove the service lid Thread the remote controller wiring and transmission wiring through the included insulating tube long 7 and secur...

Страница 17: ...oller wiring and transmission wiring between the units and other electrical wir ing do not pass through the same locations outside the unit separating them by at least 5 otherwise elec trical noise ex...

Страница 18: ...e terminal screws 3 Do not connect wires of different gauge to the same ground terminal Looseness in the connection may lessen protection 4 Keep transmission wiring at least 5 away from power supply w...

Страница 19: ...D OUT D F1 F2 F1 F2 Control box P1 P2 P1 P2 F1 F2 T1 T2 P1 P2 F1 F2 T1 T2 P1 P2 F1 F2 T1 T2 P1 P2 F1 F2 T1 T2 P1 P2 P1 P2 Outdoor unit No 2 System Indoor unit A Indoor unit B Indoor unit C Most downst...

Страница 20: ...other remote controller set to M Refer to Fig 29 Wiring Method See 7 ELECTRIC WIRING WORK 3 Remove the service lid 4 Add remote control 2 slave to the terminal block 6P for remote controller P1 P2 in...

Страница 21: ...NO and SECOND CODE NO Refer to the installation manual attached to the remote controller The Field Settings included with the remote controller lists the order of the settings and method of oper ation...

Страница 22: ...onding trouble is provided in the installation manual of the outdoor unit If any of the items in Table 5 are displayed there may be a problem with the wiring or power so check the wiring again Table 5...

Страница 23: ...0609 HT 3PN07521 1 EM04A013B 00_CV_3PN07521 1 fm Page 2 Monday June 19 2006 2 30 PM...

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