Daikin Altherma EHVH04S23DAV - To Start and Stop Forced Cooling

13 Disposal
Installer reference guide
87
ERGA04~08DAV3(A) + EHVH04+08S23DAV
Daikin Altherma – Low temperature split
4P499573-1 – 2017.12
Error code Detailed error
code
Description
81 00 Leaving water temperature
sensor problem
89 01 Heat exchanger frozen
89 02 Heat exchanger frozen
89 03 Heat exchanger frozen
8F 00 Abnormal increase outlet water
temperature (DHW)
8H 00 Abnormal increase outlet water
temperature
8H 03 Overheating water circuit
(thermostat)
AA 02 External backup heater
overheated
AC 00 Booster heater overheated
AH 00 Tank disinfection function not
completed correctly
AJ 03 Too long DHW heat-up time
required
C0 00 Water flow detected while pump
is OFF
C0 01 Flow switch malfunction
C0 02 Flow switch malfunction
C4 00 Heat exchanger temperature
sensor problem
CJ 02 Room temperature sensor
problem
EC 00 Abnormal increase tank
temperature
EC 04 Tank preheating
H1 00 External temperature sensor
problem
HC 00 Tank temperature sensor
problem
HC 01 Second tank temperature sensor
problem
HJ 10 Water pressure sensor
abnormality
JA 17 Refrigerant pressure sensor
abnormality
U3 00 Under floor heating screed dryout
function not completed correctly
U4 00 Indoor/outdoor unit
communication problem
U5 00 User interface communication
problem
U8 01 Connection with LAN adapter lost
U8 02 Connection with room thermostat
lost
U8 03 No connection with room
thermostat
UA 00 Indoor unit, outdoor unit matching
problem
UA 17 Tank type problem
UA 21 Extension/hydro mismatch
problem
UA 22 Communication problem between
control box and option box
13 Disposal
NOTICE
Do NOT try to dismantle the system yourself: the
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.
13.1 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.
13.2 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 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 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 lid from the liquid stop valve and the gas stop
valve.
2 Install a manifold on the gas stop valve.
3 Carry out the forced cooling operation. See "13.3To start and
stop forced cooling"on page88.
4 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.
5 Check on the manifold if the vacuum is reached.
6 After 2-3 minutes, close the gas stop valve and stop forced
cooling operation.
a
c
b
d
d
e
Final English - Tanslations in progress