Cautions On Handling The Stem Cap; Cautions On Handling The Service Port; Tightening Torques; Refrigerant Piping - Rotex RRLQ011CAV3 Manual De Instalación

Cautions on handling the stem cap

■
The stem cap is sealed where
indicated by the arrow. Take care not
to damage it.
■
After handling the stop valve, make
sure to tighten the stem cap securely.
For the tightening torque, refer to the
table below.
■
Check for refrigerant leaks after tightening the stem cap.

Cautions on handling the service port

■
Always use a charge hose equipped with a valve depressor pin,
since the service port is a Schrader type valve.
■
After handling the service port, make sure to tighten the service
port cap securely. For the tightening torque, refer to the table
below.
■
Check for refrigerant leaks after tightening the service port cap.

9.4. Tightening torques

Item
Stem cap, liquid side
Stem cap, gas side
Service port cap
10. R
EFRIGERANT PIPING
■
Field pipes can be installed in four directions (A, B, C, D).
1 2 3
4 4
Figure - Field pipes in 4 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 4 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 Ø6 mm drill (4x). (See figure "Field pipes
in 4 directions".)
■
After knocking out the knockout hole, it is recommended to apply
repair paint to the edge and the surrounding end surfaces to
prevent rusting.
Installation manual
12
Tightening torque (N•m)
13.5~16.5
22.5~27.5
11.5~13.9
9
10
5 6
A
D
■
When passing electrical wiring through the knockout holes,
remove any burrs from the knockout holes and wrap the wiring
with protective tape to prevent damage.
1
1 Knockout hole
2 Burr
3 Packing materials

10.1. Preventing foreign objects from entering

Plug the pipe through-holes with putty or insulating material
(procured locally) to stop up all gaps, as shown in the figure.
1
If there is any possibility that small animals enter the system through
the knockout holes, plug the holes with packing materials (field
supplied).
Insects or small animals entering the outdoor unit may cause a short
circuit in the electrical box.
In cold climates, seal knockout holes to avoid enterance of snow and
humidity.
10.2. Precautions when connecting field piping and
regarding insulation
7
■
Be careful not to let the indoor and outdoor piping come into
B
contact with the compressor terminal cover.
If the liquid-side piping insulation might come into contact with it,
8
adjust the height as shown in the figure below. Also, make sure
C
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 30°C and the humidity is higher
than RH 80%, then the thickness of the sealing materials should
be at least 20 mm in order to avoid condensation on the surface
of the sealing.
■
Be sure to insulate the liquid and gas-side field piping.
NOTICE
Any exposed piping may cause condensation.
(The highest temperature that the gas-side piping can reach is
around 120°C, so be sure to use insulating material which is
very resistant.)
DANGER
Do not touch piping and internal parts.
2
3
1 Putty or insulating material
(produced locally)
RRLQ011~016CAV3+W1
Outdoor unit for air to water heat pump
4PW57794-1 – 10.2010