Table of Contents
Advertisement
12 Unit installation
4×
a
b
c
b
d
e:
500
a
Nut (field supply)
b
Washer (accessories)
c
Hanger bracket
d
Double nut (field supply)
e
Suspension bolt pitch
12‒2 Suspension bolt pitch (A)
Class
10~32
40~50
63
▪ Level. Make sure the unit is level at all four corners using a level
or a water-filled vinyl tube.
b
a
a
Water level
b
Vinyl tube
NOTICE
Do NOT install the unit tilted. Possible consequence: If
the unit is tilted against the direction of the condensate flow
(the drain piping side is raised), the float switch might
malfunction and cause water to drip.
12.2.2
Guidelines when installing the ducting
WARNING
Do NOT install operating ignition sources (example: open
flames, an operating gas appliance or an operating electric
heater) in the duct work.
Installation and operation manual
14
(mm)
A (mm)
740
940
1140
CAUTION
▪ Make sure the installation of the duct does NOT exceed
the setting range of the external static pressure for the
unit. Refer to the technical datasheet of your model for
the setting range.
▪ Make sure to install the canvas duct so vibrations are
NOT transmitted to the duct or ceiling. Use a sound-
absorbing material (insulation material) for the lining of
the duct and apply vibration insulation rubber to the
hanging bolts.
▪ When welding, make sure NOT to spatter onto the
drain pan or the air filter.
▪ If the metal duct passes through a metal lath, wire lath
or metal plate of the wooden structure, separate the
duct and wall electrically.
▪ Install the outlet grille in a position where the airflow will
not come into direct contact with people.
▪ Do NOT use booster fans in the duct. Use the function
to adjust the fan rate setting automatically (see
"16.1 Field
setting" [ 4 19]).
The ducting is to be field supplied.
1 Air inlet side. Connect the inlet side flange (field supply) to the
indoor unit, use screws from accessory (table below). Connect
the canvas duct to the inside of the inlet side flange. Connect
the duct to the canvas duct.
Number of screws according to class
10~32
40~50
16
2 Air outlet side. Connect the canvas duct to the inside of the
outlet side flange. Connect the duct to the canvas duct.
a
b
d
e
f
a
Screws for duct flanges
For air inlet side: accessory
For air outlet side: on the unit
b
Flange
For air inlet side: field supply
For air outlet side: on the unit
c
Indoor unit
d
Insulation (field supply)
e
Canvas duct (field supply)
f
Aluminium tape (field supply)
3 Wind aluminium tape around the flange and duct connection on
both sides. Make sure there are no air leaks at any other
connection.
4 Insulate the duct to prevent condensation from forming. Use
glass wool or polyethylene foam 25 mm thick.
▪ Filter. Be sure to attach an air filter inside the air passage on the
intake side. Use an air filter with dust collecting efficiency ≥50%
(gravimetric method). The included filter is not used when the
intake duct is attached.
12.2.3
Guidelines when installing the drain
piping
Make sure condensation water can be evacuated properly. This
involves:
▪ General guidelines
▪ Connecting the drain piping to the indoor unit
63
22
26
c
b
a
f
e
d
FXDA10~63A2VEB
VRV system air conditioner
3P599562-1 – 2020.05
Advertisement
Table of Contents
