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3

2-2 ACCESSORIES

Check the following accessories are included with your unit.

2-3 OPTIONAL ACCESSORIES

• This indoor unit requires one of the operation remote controls 

listed below.

FOR THE FOLLOWING ITEMS, TAKE SPECIAL 
CARE DURING CONSTRUCTION AND CHECK 
AFTER INSTALLATION IS FINISHED.

a. Items to be checked after completion of work

Also review the “SAFETY CONSIDERATIONS”.

b. Items to be checked at time of delivery

3.

SELECTING INSTALLATION SITE 

CAUTION

• When moving the unit while removing it from the packing case, 

be sure to lift it by the four hanger brackets. Avoid putting any 
pressure on other parts especially the refrigerant piping.

• If you think the humidity inside the ceiling might exceed 86°F 

and RH80%, reinforce the insulation on the unit body.
Use glass wool or polyethylene foam as insulation so that the 
thickness is more than 1/2 in. and fits inside the ceiling opening.

(1) Select an installation site where the following condi-

tions are fulfilled and that meets with your customer’s 
approval.

• Where optimum air distribution can be ensured.
• Where nothing blocks air passage.
• Where condensate can be properly drained.
• Where the ceiling is strong enough to bear the indoor unit 

weight.

• Where the false ceiling is not noticeably on an incline.
• Where sufficient clearance for maintenance and service 

can be ensured. 

(Refer to Fig. 1)

• Where piping between indoor and outdoor units is possi-

ble within the allowable limit. (Refer to the installation 
manual for the outdoor unit.)

Name

Metal 

clamp (1)

Drain hose 

(2)

Insulation for fitting

Sealing pad

Quantity

1 pc.

1 pc.

1 each

1 each

Shape

for liquid pipe (3)

for gas pipe (4)

Large (5)

mid. (6)

Name

Screws for duct 

flanges (7)

Washer for hanger 

bracket (8)

Clamp

Washer fixing 

plate (11)

Quantity

1 set

8 pcs.

1 set

4 pcs.

Shape

Large (9)

8 pcs.

small (10)

4 pcs.

Name

Conduit mounting 

plate

Screw for conduit 

mounting plate

Insulation tube

Quantity

1 pc.

2 pcs.

1 pc.

Shape

Name

Sealing material (12)

Air filter (13)

(Other)

• Operation manual
• Installation manual

Quantity

2 pcs.

1 pc.

Shape

Remote controller

Wired type

BRC1C71

Wireless type

BRC4C82

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, 
vibrate or make noise.

Is the gas leak test fin-
ished? 

It may result in insufficient 
cooling.

Is the unit fully insulated?

Condensate may drip.

24 pcs.

Does drainage flow 
smoothly?

Condensate may drip.

Does the power supply 
voltage correspond to that 
shown on the name plate?

The unit may malfunction or 
the components burn out.

Are wiring and piping cor-
rect?

The unit may malfunction or 
the components burn out.

Is the unit safely 
grounded?

Imcomplete grounding may 
result in electric shocks.

Is wiring size according to 
specifications?

The unit may malfunction or 
the components burn out.

Is something blocking the 
air outlet or inlet of either 
the indoor or outdoor units?

It may result in insufficient 
cooling.

Are refrigerant piping 
length and additional refrig-
erant charge noted down?

The refrigerant charge in 
the system is not clear.

Items to be checked

Check

Did you explain about operations while showing the 
operation manual to your customer?

Did you hand the operation manual and warranty over to 
your customer?

Did you explain about the way of maintaining and cleaning 
local procurements (air filter, grille (both air outlet and suc-
tion grille), etc.) to your customer?

Did you hand manuals of local procurements (in case 
equipped) over to your customer?

Summary of Contents for FXDQ07MVJU

Page 1: ...MVJU FXDQ09MVJU FXDQ12MVJU FXDQ18MVJU FXDQ24MVJU SYSTEM Inverter Air Conditioners INSTALLATION MANUAL Read these instructions carefully before installation Keep this manual in a handy place for future...

Page 2: ...ury or death Do not ground units to water pipes telephone wires or lightning rods because incomplete grounding could cause a severe shock hazard resulting in severe injury or death and to gas pipes be...

Page 3: ...t the customer to keep the area around the unit clean NOTE Install the indoor and outdoor units power supply wiring and connecting wires at least 3 5ft away from televisions or radios in order to prev...

Page 4: ...mid 6 Name Screwsforduct flanges 7 Washerforhanger bracket 8 Clamp Washer fixing plate 11 Quantity 1 set 8 pcs 1 set 4 pcs Shape Large 9 8 pcs small 10 4 pcs Name Conduit mounting plate Screw for con...

Page 5: ...er to prevent image interference or noise Depending on the radio waves a distance of 3 5 ft may not be sufficient enough to eliminate the noise 2 Use suspension bolts for installation Check whether th...

Page 6: ...he provided accessories and specified parts desig nated by our company 1 Install the indoor unit temporarily Attach the hanger bracket to the suspension bolt Be sure to fix it securely by using a nut...

Page 7: ...lare and cause leaks Be careful for oil not to adhere to any portions other than a flare part If oil adhere to resin parts etc there is a pos sibility of damaging by deterioration Refer to Table 2 if...

Page 8: ...ON The connection opening on the drain piping may vary depending on the model so check the model name and use the right method for that model Make sure all water is out before making the duct connecti...

Page 9: ...1 Remove the lid of the control box Connect the remote controller and power supply single phase 60Hz 208 230V respectively to the terminal block and securely connect the ground also as shown in the fi...

Page 10: ...ng and piping between the outdoor unit and an indoor unit are mismatched the system may cause a malfunction Install a wiring interrupter or ground fault circuit interrupter for the power wiring Make s...

Page 11: ...he entire system Connecting electrical wiring remote controller wiring and transmission wiring Refer to Fig 15 Power supply wiring and Ground wire Remove the control box lid Next pull the wires into t...

Page 12: ...troller PC board is attached to the upper part of remote controller Indoor unit A Indoor unit B Most downstream Indoor unit Power supply single phase 60Hz 208 230V Power supply single phase 60Hz 208 2...

Page 13: ...tly make sure the customer keeps the Field Settings manual along with the operating manual in a safe place 11 1 SETTING THE STATIC PRESSURE SELECTION Select the SECOND CODE NO for the resistance of th...

Page 14: ...stal display to identify the point of trouble An explanation of malfunction codes and the correspond ing trouble is provided in CAUTION FOR SERVICING of the outdoor unit If the display shows any of th...

Page 15: ...0601 HT 3PN06240 4E EM05A056 FS...

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