Disposal; Overview: Disposal; To Pump Down; To Start And Stop Forced Cooling - Daikin ERGA08DAV3 Installer's Reference Manual

Error code Detailed error
code
U5 00
U8 01
U8 02
U8 03
UA 00
UA 16
UA 17
UA 21
UA 22
NOTICE
When the minimum water flow is lower than described in
the table below, the unit will temporarily stop operation and
the user interface will display error 7H‑01. After some time,
this error will reset automatically and the unit will resume
operation.
INFORMATION
Error AJ-03 is reset automatically from the moment there is
a normal tank heat-up.
INFORMATION
How an error code can be reset will be displayed on the
user interface connected on the indoor unit.
13

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.
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.
ERGA04~08DAV3(A) + EHVZ04+08S18+23DA +
EHVZ04+08S18+23DJ
Daikin Altherma 3 R F
4P495249-1B – 2019.06
Description
User interface
communication problem
Connection with LAN adapter
lost
Connection with room
thermostat lost
No connection with room
thermostat
Indoor unit, outdoor unit
matching problem
Extension/hydro
communication problem
Tank type problem
Extension/hydro mismatch
problem
Communication problem
between control box and
option box
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 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
stop forced cooling" on page 83.
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.
b
c
a
d
e
d
a Liquid stop valve
b Closing direction
c Hexagonal wrench
d Valve lid
e Gas stop valve
13.3

To start and stop forced cooling

1 Turn OFF the power.
2 Remove the switch box cover.
2×
3 Remove the service PCB cover.
13 Disposal
"13.3 To start and
Installer reference guide
83