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Installation
EDUS391100-F6
28
FXAQ-PVJU
Push on both bottom edges of the indoor unit using both hands and hook the tab on the back of
(9)
the indoor unit onto the installation panel (1). (Refer to Fig. 9)
At this time remove the buffering material placed in step (6).
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Make sure power supply wiring, transmission wiring, ground wiring and remote controller wiring are
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not caught inside the indoor unit.
When screwing in the indoor unit
Remove the front grille.
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(Refer to Fig. 7)
Secure the indoor unit to the installation panel (1) with the secur-
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ing screws (6).
(Refer to Fig. 11)
Installation panel
(accessory) (1)
Refrigerant piping
Insulating tape
(accessory) (4)
M4 × 12L
(accessory) (6)
Fig. 11
REFRIGERANT PIPING WORK
5.
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For refrigerant piping of outdoor units, see the installation manual attached to the outdoor unit.
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Execute heat insulation work completely on both sides of the gas piping and the liquid piping.
Otherwise, a water leakage can result sometimes.
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(When using a heat pump, the temperature of the gas piping can reach up to approximately 250°F, so use
insulation which is suffi ciently resistant.)
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Also, in cases where the temperature and humidity of the refrigerant piping sections might exceed
86°F or RH80 %, reinforce the refrigerant insulation. (
” 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
possible if the types of refrigerant are not the same.
〉
DANGER
Refrigerant gas may produce toxic gas if it comes in contact with fi re such as from a fan, heater, stove or
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cooking device. Exposure to this gas could result in severe injury or death.
NOTE
Use a pipe cutter and fl are suitable for the type of refrigerant.
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To prevent dust, moisture or other foreign matter from infi ltrating the tube, either pinch the end or cover it
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with tape.
Do not allow anything other than the designated refrigerant to get mixed into the refrigerant circuit, such
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as air, etc.
If any refrigerant gas leaks while working on the unit, ventilate the room thoroughly right away.
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