Disposal; Overview: Disposal; To Pump Down; To Start And Stop Forced Cooling - Daikin R32 Split-Serie Installationsanleitung

6

Disposal

NOTICE
Do NOT try to dismantle the system yourself: dismantling
of the system, treatment of the refrigerant, oil and other
parts MUST comply with applicable legislation. Units
MUST be treated at a specialised treatment facility for
reuse, recycling and recovery.
6.1

Overview: Disposal

Typical workflow
Disposing of the system typically consists of the following stages:
1 Pumping down the system.
2 Bringing the system to a specialized treatment facility.
INFORMATION
For more details, see the service manual.
6.2

To pump down

DANGER: RISK OF EXPLOSION
Pump down – Refrigerant leakage. If you want to pump
down the system, and there is a leak 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 breakdown or
damage to the system can 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 cap from the liquid stop valve and the gas
stop valve.
2 Carry out forced cooling. See
cooling" on page 11.
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 on the manifold if the vacuum is reached.
5 After 2-3 minutes, close the gas stop valve and stop forced
cooling.
c
b
e
d
a
d
a Gas stop valve
b Closing direction
c Hexagonal wrench
d Valve cap
e Liquid stop valve
(A)RXP20~35M5V1B
R32 split series
3P519299-5B – 2018.12
"6.3 To start and stop forced
6.3

To start and stop forced cooling

There are 2 methods to perform forced cooling.
▪ Method 1. Using the indoor unit ON/OFF switch (if present on the
indoor unit).
▪ Method 2. Using the indoor unit user interface.
6.3.1 To start/stop forced cooling using the
indoor unit ON/OFF switch
1 Press the ON/OFF switch for at least 5 seconds.
Result: Operation will start.
INFORMATION
Forced cooling stops automatically after 15 minutes.
2 To stop operation sooner, press the ON/OFF switch.
6.3.2 To start/stop forced cooling using the
indoor unit user interface
1 Set the operation mode to cooling.
For the procedure, refer to "To perform a test run" in the installation
manual of the indoor unit.
6 Disposal
Installation manual
11