Daikin FXAQ09MVJU Installation Manual download pdf (Page 11)

(8) Connect the piping. (See “5.REFRIGERANT PIPING WORK” and Fig. 10)

• Seal the piping through-hole with putty corking material.

(9) Push on both bottom edges of the indoor unit using both hands and hook the tab on the back of

the indoor unit onto the installation panel (1). (Refer to Fig. 9)

• At this time remove the buffering material placed in step (6).

• Make sure power supply wiring, transmission wiring, ground wiring and remote controller wiring are not

caught inside the indoor unit.

■ When screwing in the indoor unit

• Remove the front grill. (Refer to Fig. 7)

• Secure the indoor unit to the installation panel (1) with the securing

screws (6). (Refer to Fig. 11)

5. REFRIGERANT PIPING WORK

〈For refrigerant piping of outdoor units, see the installation manual attached to the outdoor unit.〉

〈Execute heat insulation work completely on both sides of the gas piping and the liquid piping.

Otherwise, a water leakage can result sometimes.〉

(When using a heat pump, the temperature of the gas piping can reach up 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 refrigerant insulation. (13/16” or thicker) Condensation may form on the

surface of the insulating material.〉

〈Before refrigerant piping work, check which type of refrigerant is used. Proper operation is not pos-

sible if the types of refrigerant are not the same.〉

DANGER

• Refrigerant gas may produce toxic gas if it comes in contact with fire such as from a fan, heater, stove or

cooking device. Exposure to this gas could result in severe injury or death.

Secure with

vinyl tape.

Seal with putty corking material.

Drain hose

Transmission wiring

and remote controller

wiring

Fig. 10

A arrow view

Refrigerant piping

Transmission wiring and

remote controller wiring

Wrap the insulating tape overlapping at least half the width with each wrap.

Wrap the insulating tape all the way to the L-shaped bend.

Refrigerant piping

Conduit

Installation panel

(accessory) (1)

Refrigerant piping

Insulating tape

(accessory) (4)

M4 × 12L

(accessory) (6)

Fig. 11

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Daikin FXAQ09MVJU Installation Manual Page 11

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