Multi F LMU540HV Installation Manual

Installation Manual 35
ENGLISH
Installation
CAUTION: Install certainly the decorative panel.
Cool air leakage causes sweating.  Water drops fall.
Air conditioner
unit
Ceiling
board
Decorative panel
Decorative
panel
Fit the insulator (this part) and
be careful for cool air leakage
Good example
Air
Cool air leakage
(no good)
Bad example
Ceiling
board
Air conditioner unit
Flexible drain hose
HEAT INSULATION
1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resis-
tance [over 120°C(248°F)].
2. Precautions in high humidity circum-
stance:
This air conditioner has been tested ac-
cording to the "KS Standard Conditions
with Mist" and confirmed that there is
not any default. However, if it is oper-
ated for a long time in high humid at-
mosphere [dew point temperature: more
than 23°C(73.4°F)], water drops are li-
able to fall. In this case, add heat insula-
tion material according to the following
procedure:
• Heat insulation material to be prepared... Adiabatic glass wool with thickness 10 to 20mm.
• Stick glass wool on all air conditioners that are located in ceiling atmosphere.
Indoor unit
Thermal insulator
(accessory)
Fastening band
(accessory)
Refrigerant piping
Drain Piping
1. The drain hose should point downward for op-
timum drainage.
2. Incorrect Installation Examples:
Downward slope
Do not raise
Accumulated
drain water
Tip of drain hose
dipped in water
Air
Kinking
Water
leakage
Water
leakage
Ditch
Less than 50mm
(1 31/32 inch) gap
Water
leakage
[Standard / Standard Libero / Artcool Mirror Type]