Daikin Split Series, Installation Manual

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FDBQ25B8V1
Split series room air conditioners
Multi system room air conditioners
4PW23698-1
Installation manual
2
Installation
Selection of installation site
■
Ensure sufficient clearance for maintenance and service.
■
Make sure that no piping is passing through the hatched area
(See figure 2)
- condensation can drip on the switch box
- pipes can prevent you from opening the switch box smoothly
■
Refer to the installation manual of the outdoor unit and confirm
the maximum allowable piping length.
Preparation before installation
■
Relation of the ceiling opening to the unit and suspension bolt
position
(See figure 1)
■
Making the wall hole to the outdoor side for the electric wiring,
the refrigerant and drain piping
-
The hole must slope down toward the outdoor side.
- The hole size must be just as large as to hold the protective
pipe (Ø7–8 cm) (field supply).
- Use a wall hole cover (field supply) to hide the wall hole as
much as possible.
■
The fan speed for this indoor unit is equipped to provide a
standard external pressure.
■
Install the suspension bolts
Use M10 size bolts for the suspension.
Use anchors for existing ceiling, and a sunken insert, sunken
anchor or other field supplied parts to reinforce the ceiling in
order to bear the weight of the unit.
Installing the indoor unit
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
on the upper and lower side of the hanger bracket and tighten the
upper nut.
I
NSTALLING THE OUTDOOR UNIT
Refer to the installation manual of the outdoor unit.
R
EFRIGERANT PIPING
This unit is especially designed for use of R-410A refrigerant.
Field piping
All field piping must be provided by a licensed refrigeration technician
and must comply with the relevant local and national codes.
Pipe connections
■
Refer to the chapter "Outlook drawing" on page 1 for the
required piping diameters.
■
If installed as a multi system indoor unit, use the reducers
supplied with the outdoor unit when the piping from the indoor
unit does not fit on the port of the outdoor unit. For instructions,
read the instruction sheet supplied with the outdoor unit.
■
Be sure to insulate the gas pipe and the liquid pipe separately
with polyethylene foam insulation material (thermal
conductivity=0.041~0.052 kW/mK)
1 protective pipe (field supply)
2 wall hole cover (field supply)
1 anchor (field supply)
2
long nut or turn-buckle (field supply)
3 suspension bolt (field supply)
1 2
Ø7–8 cm
NOTE Check that the unit is levelled at all 4 corners.
(See figure 3)
1 vinyl tube with water
2 water level
Indoor unit
Insulation Inside diameter wall thickness
Gas pipe 12–15 mm 8–10 mm
Liquid pipe 8–10 mm 7–10 mm
NOTE For the gas pipe, use a polyethylene foam resistant to
a temperature of 110°C.
1
2
3
1 nut
2 washer
3 tighten with a double nut