Daikin FDQ125C7VEB, Installation Manual

Page: 8 / 16

Installation manual
5
FDQ125C7VEB
Split System air conditioners
4PW71105-1 – 08.2011
- Insulate the complete drain piping inside the building (field
supply).
- If the drain hose cannot be sufficiently set on a slope, fit the
hose with drain raising piping (field supply).
■
How to perform drain piping
(See figure 10)
1 Connect the drain hose to the drain raising pipes, and insulate
them.
2 Connect the drain hose to the drain outlet on the indoor unit, and
tighten it with the clamp.
■
Precautions
-
Install the drain raising pipes at a height of less than 625 mm.
- Install the drain raising pipes at a right angle to the indoor
unit and no more than 300 mm from the unit.
- To prevent air bubbles, install the drain hose level or slightly
tilted up (
≤
75 mm).
Testing of drain piping
After piping work is finished, check if drainage flows smoothly.
■
Add approximately 1 l of water gradually through the air
discharge outlet. Check for water leaks.
Method of adding water. See
figure 8 .
First perform electric wiring work as instructed in "Electric wiring
work" on page 6 and how to set the remote controller as explained in
"Wiring example and how to set the remote controller" on page 6 .
When electric wiring work is finished
Check drainage flow during COOL running, explained in "Test
operation" on page 8 .
When electric wiring work is not finished
■
Remove the switch box cover and connect the single-phase
power supply and the remote controller to the terminals. (Refer
to chapter
"Electric wiring work" on page 6 for switch box
attachment/detachment) (Refer to figure 12 and 13 )
■
Connect the single-phase
power supply to connections 1
and 2 (as shown in the figure)
on the power supply terminal
board and confirm drain
operation.
■
Be aware that the fan will turn during the operation.
■
After confirming drainage, turn off the power.
1 Ceiling slab
2 Hanger bracket
3 Adjustable range
4 Drain raising pipe
5 Drain hose (supplied with the unit)
6 Clamp metal (supplied with the unit)
Installation A (mm)
Rear suction installation 231
When canvas duct is installed 350-530
When air inlet panel is directly installed 231
NOTE The incline of attached drain hose should be
75 mm or less so that the drain socket does
not have to withstand additional force.
To ensure a downward slope of 1:100, install
hanging bars every 1 to 1.5 m.
When unifying multiple drain pipes, install the
pipes as shown in
figure 11 . Select converging
drain pipes whose gauge is suitable for the
operating capacity of the unit.
1 T-joint converging drain pipes
1 Water inlet
2 Portable pump
3 Water inlet cover
4 Bucket (adding water through water inlet)
5 Drain outlet for maintenance (with rubber drain plug)
6 Refrigerant pipes
Caution for drain socket
Do not remove the drain pipe plug. Water might leak out.
The drain outlet is only used to discharge water if the drain
pump is not used or before maintenance. Gently put in and
out the drain plug. Excessive force may deform the drain
socket of the drain pan.
■
Pulling out the plug
Do not wiggle the plug up and down
■
Pushing in the plug
Set the plug and push it by using a crosshead screw-
driver
1 Switch box cover
2 Transmission wiring port
3 Power supply wiring port
4 Wiring diagram
5 Switch box
6 Plastic clamp
7 Remote controller wiring
8 Terminal board for unit transmission wiring
9 Power supply wiring
10 Indoor PCB board 1
11 Power supply terminal board
12 Transmission wiring between units
13 Indoor PCB board 2
14 Indoor PCB board 3 (only for 60~140 units)
1
1 Drain plug
1
2
1 Drain plug
2 Crosshead screwdriver
L N 1 2 3
L N