Refrigerant Piping; Preventing Foreign Objects From Entering - Daikin ERLQ036BAVJU Manuel D'installation

R
EFRIGERANT PIPING
Field pipes can be installed in four directions.
1 2 3
4 4
Figure - Field pipes in four directions
1 Drill
2 Centre area around knockout hole
3 Knockout hole
4 Slit
5 Connecting pipe
6 Bottom frame
7 Front plate
8 Pipe outlet plate
9 Screw front plate
10 Pipe outlet plate screw
A Forward
B Backward
C Sideways
D Downward
Cutting out the two slits makes it possible to install as shown in
the figure "Field pipes in four directions".
(Use a metal saw to cut out the slits.)
To install the connecting pipe to the unit in a downward direction,
make a knockout hole by penetrating the centre area around the
knockout hole using a Ø15/64 inch (6 mm) drill. (See
figure "Field pipes in four directions".)
After knocking out the knock-out, it is recommended to apply
repair paint to the edge and the surrounding end surfaces to
prevent rusting.
When passing electrical wiring through the knock holes, remove
any burrs from the knock holes and wrap the wiring with
protective tape to prevent damage.
If there is any possibility that small animals enter the system
through the knock holes, plug the holes with packing materials
(to be prepared on-site).
1 2
Installation manual
8
7
9
10
5 6
A
D
3

Preventing foreign objects from entering

1 Knockout hole
2 Burr
3 Packing materials
Plug the pipe through-holes with putty or insulating material
(procured locally) to stop up all gaps, as shown in the figure.
B
8
C
1
Insects or small animals entering the outdoor unit may cause a short
circuit in the electrical box.
Precautions when connecting field piping and regarding
insulation
Be careful not to let the indoor and outdoor piping come into
contact with the compressor terminal cover.
If the liquid-side piping insulation might come into contact with it,
adjust the height as shown in the figure below. Also, make sure
the field piping does not touch the bolts or outer panels of the
compressor.
When the outdoor unit is installed above the indoor unit the
following can occur:
The condensated water on the stop valve can move to the
indoor unit. To avoid this, please cover the stop valve with
sealing material.
If the temperature is higher than 86°F (30°C) and the humidity is
higher than RH 80%, then the thickness of the sealing materials
should be at least 0.78 inch (20 mm) in order to avoid
condensation on the surface of the sealing.
Be sure to insulate the liquid and gas-side field piping.
Any exposed piping may cause condensation or burns
if touched.
(The highest temperature that the gas-side piping can reach is
around 248°F (120°C), so be sure to use insulating material
which is heat resistant.)
1
2
3
1 Putty or insulating material
(produced locally)
1 Compressor
2 Terminal cover
3 Indoor and
outdoor field
4
piping
4 Corking, etc.
5 Insulation
material
4
6 Bolts
A Be careful with
5
pipe, bolt and
outer panel
5
connections
6
A
ERLQ036~054BAVJU
Outdoor unit for air to water heat pump
4PW55905-1