7 Disposal
Installation manual
18
RXS50+60 + RX50+60 + ARXS50~71
R410A split series
3P360062-1H – 2016.09
Drainage
Make sure drainage flows smoothly.
Possible consequence:
Condensate water might drip.
The indoor unit receives the signals of the
remote
controller
.
The specified wires are used for the
interconnection
cable
.
6.3
To perform a test run
Prerequisite:
Power supply must be in the specified range.
Prerequisite:
Test run operation may be done in cooling or heating
mode.
Prerequisite:
Test run should be done in accordance with the
operation manual of the indoor unit to make sure that all functions
and parts are working properly.
1
In cooling mode, select the lowest programmable temperature.
In heating mode, select the highest programmable temperature.
Test run can be disabled if necessary.
2
When test run is finished, set the temperature to a normal level.
In cooling mode: 26~28°C, in heating mode: 20~24°C.
3
The system stops operating after 3 minutes when you turned
the unit OFF.
INFORMATION
▪ Even if the unit is turned OFF, it consumes electricity.
▪ When there was a power failure and the power turns
back on again, previous selected mode will be
continued.
6.4
To start and stop forced cooling
There are 2 methods to perform forced cooling operation:
1
when using the ON/OFF switch of the indoor unit (if it's present
on the indoor unit),
2
when using the outdoor unit forced cooling operation switch.
Method 1: When using the ON/OFF switch of the indoor unit
Press the ON/OFF switch for at least 5 seconds.
Result:
Operation will start. Forced cooling stops automatically after
15 minutes. To stop the operation, press the ON/OFF switch.
Method 2: When using the outdoor unit
▪ Turn ON the outdoor unit.
▪ Push the forced cooling switch (SW1) in less then 3 minutes after
turning the power ON.
Result:
Operation starts.
▪ Forced cooling will stop automatically after 15 minutes. To stop
operation, press the switch (SW1).
SW1
6.5
Starting up the outdoor unit
See the indoor unit installation manual for configuration and
commissioning of the system.
7
Disposal
7.1
To pump down
Example:
To protect the environment, pump down when relocating
the unit or when disposing of the unit.
DANGER: RISK OF EXPLOSION
Pump down – Refrigerant leakage.
If you want to pump
down the system, and there is a leakage in the refrigerant
circuit:
▪ Do NOT use the unit's automatic pump down function,
with which you can collect all refrigerant from the
system into the outdoor unit.
Possible consequence:
Self-combustion and explosion of the compressor
because of air going into the operating compressor.
▪ Use a separate recovery system so that the unit's
compressor does NOT have to operate.
NOTICE
During pump down operation, stop the compressor before
removing the refrigerant piping. If the compressor is still
running and the stop valve is open during pump down, air
will be sucked into the system. Compressor breakage and
other injury will be the result due to abnormal pressure in
the refrigerant cycle.
Pump down operation will extract all refrigerant from the system into
the outdoor unit.
1
Remove the valve lid from liquid stop valve and gas stop valve.
2
Carry out the forced cooling operation.
3
After 5 to 10 minutes (after only 1 or 2 minutes in case of very
low ambient temperatures (<−10°C)), close the liquid stop valve
with a hexagonal wrench.
4
Check with the manifold if the vacuum is reached.
5
After 2-3 minutes, close the gas stop valve and stop forced
cooling operation.
a
c
b
d
d
e
a
Gas stop valve
b
Closing direction
c
Hexagonal wrench
d
Valve lid
e
Liquid stop valve
