Installation and operation manual
3
FXZQ15~50A2VEB
VRV System air conditioners
4P341102-1B – 2013.06
Preparations before installation
1
Relation of ceiling opening to unit and suspension bolt position.
In case of decoration panel
BYFQ60C: See
BYFQ60B: See
Install the inspection opening on the control box side where
maintenance and inspection of the control box and drain pump
are easy.
In case of decoration panel BYFQ60B
2
Make the ceiling opening needed for installation where
applicable. (For existing ceilings.)
- Refer to the paper pattern for installation for the ceiling
opening dimensions.
- Create the ceiling opening required for installation. From the
side of the opening to the casing outlet or inspection opening,
implement the refrigerant and drain piping and wiring for
remote controller (unnecessary for wireless type). Refer to
each piping or wiring section.
- After making an opening in the ceiling, it may be necessary to
reinforce ceiling beams to keep the ceiling level and to
prevent it from vibrating. Consult the builder for details.
3
Install the suspension bolts. (Use either a M8~M10 size bolt.)
Use anchors for existing ceilings, and a sunken insert, sunken
anchors or other field supplied parts for new ceilings to reinforce
the ceiling in order to bear the weight of the unit. Adjust
clearance from the ceiling before proceeding further.
Installation example
Indoor unit installation
When installing optional accessories (except for the decoration
panel), read also the installation manual of the optional accessories.
Depending on the field conditions, it may be easier to install optional
accessories before the indoor unit is installed. However, for existing
ceilings, always install fresh air intake kit before installing the unit.
1
Install the unit in the ceiling opening.
- Attach the hanger bracket to the suspension bolt. Be sure to
fix it securely by using a nut and washer from the upper and
lower sides of the hanger bracket.
- Securing the hanger bracket
2
Fix the paper pattern for installation. (For new ceilings only.)
- The paper pattern for installation corresponds with the
measurements of the ceiling opening. Consult the builder for
details.
- The centre of the ceiling opening is indicated on the paper
pattern for installation. The centre of the unit is indicated on
the unit casing.
- After removing the packaging material from the paper pattern
for installation, attach the paper pattern for installation to the
unit with the attached screws as shown in
3
Adjust the unit to the right position for installation.
(See
"Preparations before installation" on page 3
4
Check if the unit is horizontally levelled.
- Do not install the unit tilted. The indoor unit is equipped with a
built-in drain pump and float switch. (If the unit is tilted
against the direction of the condensate flow (the drain piping
side is raised), the float switch may malfunction and cause
water to drip.)
- Check if the unit is levelled at all four corners with a water
level or a water-filled vinyl tube as shown in
5
Remove the paper pattern for installation. (For new ceilings
only.)
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
1
Inspection opening
NOTE
Installation is possible with a ceiling 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 ceiling material to the part or recover
the ceiling.
1
Ceiling slab
2
Anchor
3
Long nut or turn-buckle
4
Suspension bolt
5
False ceiling
NOTE
All the above parts are field supplied.
For other installation than standard installation,
contact your dealer for details.
1
(300)
450×450
1
Nut (field supply)
2
Washer (supplied with the unit)
3
Hanger bracket
4
Double nut (field supply, tighten)
1
Paper pattern for installation
2
Screws (supplied with the unit)
3
Centre of the ceiling opening
1
Water level
2
Vinyl tube
