Daikin FXTQ80A7VEB Installation Manual Download

Page: 5 / 16

English

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

a. Items to be checked after completion of work

b. Items to be checked at time of delivery

Also review the “SAFETY PRECAUTIONS”.

c. Points for explanation about operations

2-4

NOTE TO INSTALLER

• Be sure to instruct customers how to properly operate the

unit (especially cleaning filters, operating different functions,
and adjusting the temperature) by having them carry out
operations themselves while looking at the manual.

3. SELECTING INSTALLATION SITE

Please attach additional thermal insulation material to the unit
body when it is believed that the relative humidity in the ceiling
exceeds 80%. Use glass wool, polyethylene foam, or similar
with a thickness of 10 mm or more as thermal insulation
material.

(1) Select an installation site where the following conditions are

fulfilled and that meets with your customer’s approval.
• In the upper space (including the back of the ceiling) of the

indoor unit where there is no possible dripping of water
from the refrigerant pipe, drain pipe, water pipe, etc.

• Where optimum air distribution can be ensured.
• Where nothing blocks the air passage.
• Where condensate can be properly drained.

• If supporting structural members are not strong enough

to take the unit’s weight, the unit could fall out of place
and cause serious injury.

• Where the false ceiling is not noticeably on an incline.
• Where there is no risk of flammable gas leakage.
• Where sufficient clearance for maintenance and service

can be ensured.

(Refer to Fig. 1)

• Where piping between indoor and outdoor units is

possible within the allowable limit. (Refer to the
installation manual of the outdoor unit.)

CAUTION

• Install the indoor and outdoor units, power supply wiring and

connecting wires at least 1 meter away from televisions or
radios in order to prevent image interference or noise.
(Depending on the radio waves, a distance of 1 meter may
not be sufficient enough to eliminate the noise.)

(2) Use suspension bolts for installation. Check whether

the ceiling is strong enough to support the weight of
the unit or not. If there is a risk, reinforce the ceiling
before installing the unit.

4. PREPARATIONS BEFORE

INSTALLATION

(1) Relative positions of indoor unit and suspension bolt.

(Refer to Fig. 2)

(2) Install a canvass duct to the air discharge outlet and air inlet

so that vibration from the machine body isn’t transmitted to
the duct or ceiling.
You should also apply sound absorbing material to the
inside of the duct, and vibration insulation rubber to the
suspension bolts.

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 finished?

It may result in insufficient
cooling.

Is the unit fully insulated?

Condensate water may drip.

Does drainage flow smoothly?

Condensate water 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 correct?

The unit may malfunction or
the components burn out.

Is the unit safely grounded?

Dangerous at electric leakage.

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 refrigerant
charge noted down?

The refrigerant charge in the
system is not clear.

Items to be checked

Check

Have you explained how to operate the air conditioner showing
the operation manual to the customer?
Have you handed the operation manual and the installation
manual to the customer?

The items with

WARNING or

CAUTION mark in the operation

manual are the items pertaining to possibilities for bodily injury and
material damage in addition to the general usage of
the product. Accordingly, it is necessary that you make a full
explanation about the described contents and also ask your
customers to read the operation manual.

Fig. 1

Min. 650

(service space)

470

(length: mm)

Min.

Fig. 2

Indoor unit

Air outlet

Inspection hatch
600

1296

Air inlet