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Error
Cause
Possible solution
code
8
Incorrect fan speed ▪ Fan catching on casing
▪ Wiring between fan and casing
▪ Check wiring for poor wire contact
▪ Replace fan
29, 30
Gas valve relay
Replace boiler controller
fault
14
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.
14.1
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.
14.2
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 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.
15
Technical data
A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of latest technical data is
available on the Daikin extranet (authentication required).
EVLQ05+08CAV3 + EHYHBH05AA + EHYHBH/X08AA +
EHYKOMB33AA
Daikin Altherma hybrid heat pump
4P355634-1C – 2018.06
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 101.
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.
b
c
a
d
e
d
a
Gas stop valve
b
Closing direction
c
Hexagonal wrench
d
Valve cap
e
Liquid stop valve
14.3
To start and stop forced cooling
Confirm that DIP switch SW2 is in COOL mode.
1 Press the forced cooling operation switch SW1 to begin forced
cooling.
2 Press the forced cooling operation switch SW1 to stop forced
cooling.
H
C
E
O
A
O
SW1
T
L
SW2
NOTICE
Take care that while running forced cooling operation, the
water
temperature
remains
temperature read out of the indoor unit). You can achieve
this, for example, by activating all fans of the fan coil units.
14 Disposal
"14.3 To start and stop forced
higher
than
5°C
(see
Installer reference guide
101
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