Installation and operation manual
2
FXSQ20~125M7V1B
VRV System air conditioner
4PW15110-1
For the following items, take special care during
construction and check after installation is finished
Notes to the installer
■
Read this manual carefully to ensure correct installation. Be sure
to instruct the customer how to properly operate the system and
show him/her the enclosed operation manual.
■
Explain to the customer what system is installed on the site. Be
sure to fill out the appropriate installation specifications in the
chapter "What to do before operation" of the outdoor unit
operation manual.
S
ELECTING INSTALLATION SITE
(See
figure 1
and
figure 2
)
1
Select an installation site where the following conditions are
fulfilled and that meets your customer's approval.
-
Where optimum air distribution can be ensured.
-
Where nothing blocks air passage.
-
Where condensate water can be properly drained.
-
Where the false ceiling is not noticeably on an incline.
-
Where sufficient clearance for maintenance and service can
be ensured.
-
Where piping between indoor and outdoor units is possible
within the allowable limit. (Refer to the installation manual of
the outdoor unit.)
-
Keep indoor unit, outdoor unit, power supply wiring and
transmission wiring at least 1 meter away from televisions
and radios. This is to prevent image interference and noise in
those electrical appliances. (Noise may be generated
depending on the conditions under which the electric wave is
generated, even if 1 meter is kept.)
2
Use suspension bolts for installation. Check whether the ceiling
is strong enough to support the weight of the indoor unit. If there
is a risk, reinforce the ceiling before installing the unit.
P
REPARATIONS BEFORE INSTALLATION
1
Relation of ceiling opening to unit and suspension bolt position.
(See figure 3)
For installation, choose one of the possibilities as listed further.
Standard rear suction
(See figure 6a)
Installation with rear duct and duct service opening
(See
figure 6b)
Installation with rear duct, no duct service opening
(See
figure 6c)
Tick
✓
when
checked
■
Is the indoor unit fixed firmly?
The unit 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 components may burn out.
■
Are wiring and piping correct?
The unit may malfunction or components may burn out.
■
Is the unit safely grounded?
Dangerous at electric leakage.
■
Is the wiring size according to specifications?
The unit may malfunction or components may burn out.
■
Is nothing 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 might not be clear.
■
Are the air filters fixed properly (when installing with rear duct)?
Maintenance of the air filters can be impossible.
1
Service space
≥
300
2
Drain pipe
3
Power supply wiring port
4
Transmission wiring port
5
Maintenance drain outlet
6
Gas pipe
7
Liquid pipe
Model
A
B
FXSQ20•25•32
550
600
FXSQ40•50
700
750
FXSQ63
1000
1050
FXSQ80•100•125
1400
1450
1
Indoor unit
2
Pipe
3
Suspension bolt pitch (x4)
4
Suspension bolt pitch distance
1
Ceiling surface
2
Ceiling opening
3
Service access panel (optional accessory)
4
Air filter
5
Air inlet duct
6
Duct service opening
7
Interchangeable plate
NOTE
Before installation of the unit (in case of installation
with duct, but no duct service opening): modify the
position of the air filters.
1
Remove the air filter(s) at the
outside of the unit
2
Remove the interchangeable plate
3
Install the air filter(s) from the inside
of the unit
4
Reinstall the interchangeable plate
1
2
4
3
