Installation of indoor unit
Installation sequence on new ceiling: (1) -± (2) -± (3) -± (4) -± (5) -± (6)
Installation sequence on new ceiling: (1) -± (3) -± (4) -± (5) -± (6)
(1) Temporary installation of indoor unit
Attach hangers to hanging screws, and make sure to use nuts
and washers on both upper and lower ends of hangers so as to
fix them firmly . A washer fixing plate (to be provided on site) can
prevent the washer from dropping off .
<Work at ceilings>
(2) Adjust units to appropriate installation locations . Refer to “(3)
Preparation before installation . ”
(3) Correct levelness of air conditioner units .
The indoor unit is equipped with a built-in drainage pump
and a float switch . Correct levelness with a level or water-
filled polyethylene pipe .
Note: if the unit inclines towards reverse direction of condensate
flow, the float switch can not work normally and water leakage will
be resulted .
(4) Pull out the original fixing plate that prevents the washer from
dropping off, and tighten nuts .
(5) Remove the installation cardboard .
REFRIGERANT PIPING (As for outdoor piping, please refer
to installation Manual of outdoor unit.)
Outdoor is precharged with refrigerant .
Be sure to see the Fig .1, when connecting and removing piping from unit .
For the size of the flare nut, please refer to Table 1 .
Apply refrigerant oil at both inside and outsid of Iflare nut . Tighten it band tight 3-4 turns then tighten it .
Use torque specified in Table 1 . (Too much force may damage flare nut, causing gas leakage) .
Check piping joints for gas leakage . Insulate piping as shown in Fig . below .
Cover joint of gas piping and insulator ® with seal .
6 4
Nut (to be
provided on site)
secure hanger
Washer (to be
provided on site)
Insert
Washer (to be
provided on site)
secure hanger
Medium size seal pad 11 (accessory)
Torque spanner
Clamp 3
Flare nut
Insulator (accessory) 8
(For liquid pipe)
Insulator (accessory) 7
Gas pipe
Spanner
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