3
2. 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 condensate flow, 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 figure 12.
1
Water level
2
Vinyl tube
3. Tighten the upper nut.
4. Fix the paper pattern for installation.
•
The paper pattern for installation corresponds with the
measurements of the ceiling opening. Consult the builder
for details.
•
Attach the paper pattern for installation to the unit with the
attached screws as shown in figure 17.
The paper pattern for installation is marked for 3 types of
ceiling openings. Read the notations carefully when
installing.
1
Paper pattern for installation (supplied with the unit)
2
Screws for fixing the paper pattern for installation (supplied with
the unit (6))
REFRIGERANT PIPING WORK
For refrigerant piping of outdoor unit, refer to the installation
manual supplied with the outdoor unit.
All field piping must be provided by a licensed refrigeration
technician and must comply with the relevant local and
national codes.
•
The outdoor unit is charged with refrigerant.
•
Be sure to use both a spanner and torque wrench together when
connecting or disconnecting pipes to/from the unit.
1
Torque wrench
2
Spanner
3
Piping union
4
Flare nut
•
Refer to Table 1 for the dimensions of flare nut spaces and
the appropriate tightening torque. (Overtightening may
damage the flare and cause leaks.)
Table 1
Pipe gauge
Tightening torque
Flare dimension A
Flare shape
(mm)
Ø 6.4
1420~1720 N•cm
8.3~8.7
(144~176 kgf•cm)
Ø 9.5
3270~3990 N•cm
12.0~12.4
(333~407 kgf•cm)
Ø 12.7
4950~6030 N•cm
15.4~15.8
(504~616 kgf•cm)
Ø 15.9
6180~7540 N•cm
18.6~19.0
(630~770 kgf•cm)
Ø 19.1
9720~11860 N•cm
22.9~23.3
(990~1210 kgf•cm)
•
When connecting the flare nut, coat the flare both inside and
outside with refrigerating machine oil and initially tighten by
hand 3 or 4 turns before tightening firmly.
1
Coat here with refrigerating
machine oil
Mounting the air inlet panel with a canvas connection
See figure 7b
1
Ceiling surface
2
Ceiling opening
3
Air inlet panel (Optional accessory)
4
Indoor unit (Back side)
5
Canvas connection for air inlet panel (Optional accessory)
Model
A
FH(Y)B35•45
760
FH(Y)B60•71
1060
FHYB100•125
1460
Mounting the air inlet panel directly
See figure 7c
NOTE
When installing an air inlet duct, select
fixing screws that shall stick out maximum
5mm at the inside of the flange.
1
Air inlet duct
2
Inside of the flange
3
Fixing screw
This is to protect the air filter from damage
during maintenance of the filter.
•
For other installation than standard installation, contact your
Daikin dealer for details.
2. The fan speed for this indoor unit is preset to provide
standard external static pressure.
If higher or lower external static pressure is required, reset the
external static pressure by changing the initial setting from the
remote controller.
Refer to "Setting of static pressure".
3. Install the suspension bolts.
(Use M10 size bolt for the suspension 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.
Installation example
See figure 4
1
Anchor
2
Ceiling slab
3
Long nut or turn-buckle
4
Suspension bolt
5
Indoor unit
NOTE
All the above parts are field supplied.
INDOOR UNIT INSTALLATION
When installing optional accessories (except for the air inlet
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.
1. Install the indoor unit temporarily.
•
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 (see figure 5).
1
Nut (field supply)
2
Washer for hanger bracket (supplied with the unit)
3
Tighten (double nut)
1
2
3
≤
5
2
3
1
4
1
1
R=0.4~0.8
45
° ±
2
90
°±
4
A
