Installation and operation manual
2
FXZQ20~50M8V1B
VRV System air conditioners
4PW25085-1C
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.
I
MPORTANT
INFORMATION
REGARDING
THE
REFRIGERANT
USED
This product contains fluorinated greenhouse gases covered by the
Kyoto Protocol.
Refrigerant type:
R410A
GWP
(1)
value:
1975
(1)
GWP = global warming potential
Periodical inspections for refrigerant leaks may be required
depending on European or local legislation. Please contact your local
dealer for more information.
S
ELECTING
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 2 or 3
directions.
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.)
•
This is a class A product. In a domestic environment this product
may cause radio interference in which case the user may be
required to take adequate measures.
•
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
Ceiling height
Install this unit where the height of bottom panel is more than
2.5 m so that the user cannot easily touch.
3
Air flow directions
Select the air flow directions best suited to the room and point of
installation. (For air discharge in 2 or 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 the chapter
(
= 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)
P
REPARATIONS
BEFORE
INSTALLATION
1.
Relation of ceiling opening to unit and suspension bolt
position.
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.
1
Air discharge in 4 directions
2
Air discharge in 3 directions
3
Air discharge in 2 directions
1
Air inlet
2
Air outlet
NOTE
Leave 200 mm or more space where marked
with * on sides where the air outlet is closed.
1
Decoration panel dimensions
2
Ceiling opening dimensions
3
Indoor unit dimensions
4
Suspension bolt pitch dimensions
5
Refrigerant piping
6
Suspension bolt (x4)
7
False ceiling
8
Hanger bracket
NOTE
Installation is possible with a ceiling opening
dimension of 660 mm (marked with *). However, to
achieve a ceiling-panel overlapping dimension of
20 mm, the spacing between the ceiling and the unit
should be 45 mm or less. If the spacing between
ceiling and the unit is over 45 mm, attach sealing
material in the part marked
or recover the ceiling.
1
Sealing material
2
False ceiling
