FXZQ15~50A2VEB
VRV System air conditioners
4P341102-1B – 2013.06
Installation and operation manual
2
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.
Selecting installation site
When the conditions in the ceiling are exceeding 30°C and a relative
humidity of 80%, or when fresh air is inducted into the ceiling, an
additional insulation is required (minimum 10 mm thickness,
polyethylene foam).
For this unit you can select different air flow directions. It is necessary
to purchase an optional blocking pad kit to discharge the air in 3 or
4 (closed corners) directions.
Install the unit so that air vents, lights, or machines near the unit do
not interfere with the air flow.
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 there is no risk of flammable gas leaking.
•
The equipment is not intended for use in a potentially explosive
atmosphere.
•
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, inter unit wiring and remote
controller 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.)
•
When installing the wireless remote controller kit, the distance
between wireless remote controller and indoor unit might be
shorter if there are fluorescent lights who are electrically started
in the room. The indoor unit must be installed as far as possible
away from fluorescent lights.
2
Ceiling height
This indoor unit may be installed on ceilings up to 3.5 m in
height. However, it becomes necessary to make field settings
using the remote controller when installing the unit at a height
over 2.7 m.
To avoid accidental touching, it is recommended to install the
unit higher than 2.5 m.
Refer to
and to the decoration panel
installation manual.
3
Air flow directions
Select the air flow directions best suited to the room and point of
installation. (For air discharge in 3 directions, it is necessary to
make field settings by means of the remote controller and to
close the air outlet(s). Refer to the installation manual of the
optional blocking pad kit and to
: air flow direction)
4
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.
(The installation pitch is marked on the paper pattern for
installation. Refer to it to check for points requiring reinforcing.)
Space required for installation see
: air flow
direction)
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 or heating.
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 or heating.
Are refrigerant piping length and additional refrigerant charge
noted down?
The refrigerant charge in the system might not be clear.
a
Indoor unit
b
Lighting
The figure describes about a ceiling lighting, but a recessed
ceiling light is not restricted.
c
Air fan
A
If the air outlet is closed, space marked (A) should be 500 mm at
least. In addition, if both the right and left corner of this air outlet
are closed, space marked (A) should be 200 mm at least.
B
≥
1500 mm from any static volume
PP
PP
PP
(
A
)
PP
(B)
1500 mm
a
c
b
a
1
All-round air discharge
2
Air discharge in 4 directions
3
Air discharge in 3 directions
NOTE
Air flow directions as shown in
serve as examples of possible air flow directions.
1
Air discharge
2
Air inlet
NOTE
Leave 200 mm or more space where marked with *, on
sides where the air outlet is closed.
