Daikin FDQ125C7VEB, Installation Manual

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Installation manual
3
FDQ125C7VEB
Split System air conditioners
4PW71105-1 – 08.2011
Mounting the air inlet panel with a canvas connection (See
figure 7a )
Mounting the air inlet panel directly (See figure 7b )
Bottom suction (See figure 7c )
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
"External static pressure setting" on page 7 .
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 3 )
I
NDOOR 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 4)
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 9 .
3. Tighten the upper nut.
R
EFRIGERANT PIPING WORK
For refrigerant piping of outdoor unit, refer to the installation manual
supplied with the outdoor unit.
Execute heat insulation work completely on both sides of the gas
piping and the liquid piping. Otherwise, this can sometimes result in
water leakage.
Before rigging tubes, check which type of refrigerant is used.
■
Use a pipe cutter and flare suitable for the used refrigerant.
■
To prevent dust, moisture or other foreign matter from infiltrating
the tube, either pinch the end, or cover it with tape.
■
Use copper alloy seamless pipes (ISO 1337).
■
The outdoor unit is charged with refrigerant.
■
To prevent water leakage, execute heat insulation work
completely on both sides of the gas and liquid piping. When
using a heat pump, the temperature of the gas piping can reach
up to approximately 120°C, use insulation which is sufficiently
heat resistant.
■
Be sure to use both a spanner and torque wrench together when
connecting or disconnecting pipes to/from the unit.
■
Do not mix anything other than the specified refrigerant, such as
air, etc..., inside the refrigerant circuit.
■
Use annealed material only for flare connections.
NOTE When installing an air inlet duct, select fixing screws
that shall stick out maximum 5 mm at the inside of the
flange to protect the air filter from damage during
maintenance of the filter.
1 Air inlet duct
2 Inside of the flange
3 Fixing screw
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)
A (mm)
1460
NOTE The unit can be used with bottom suction by replacing
the interchangeable plate by the air filter holding plate.
1 Air filter holding plate with air filter(s)
2 Interchangeable plate
NOTE For other installation than standard installation, contact
your Daikin dealer for details.
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.
1 2
3
≤
5 mm
1 Nut (field supply)
2 Washer for hanger bracket (supplied with the unit)
3 Tighten (double nut)
1 Water level
2 Vinyl tube
All field piping must be provided by a licensed refrigeration
technician and must comply with the relevant local and
national codes.
1 Torque wrench
2 Spanner
3 Piping union
4 Flare nut
1 2
4
3