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13 Disposal
Installer reference guide
83
ERHQ+ERLQ011~016 + 16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
INFORMATION
In case of error code AH and no interruption of the
disinfection function occurred due to domestic hot water
tapping, following actions are recommended:
▪ When the Domestic hot water > Type > Reheat or
Reheat + sched. is selected, it is recommended to
program the start-up of the disinfection function at least
4 hours later than the last expected large hot water
tapping. This start-up can be set by installer settings
(disinfection function).
▪ When the Domestic hot water > Type > Scheduled only
is selected, it is recommended to program a Storage
eco 3 hours before the scheduled start-up of the
disinfection function to preheat the tank.
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.
Minimum required flow during heat pump operation
04+08 models
6 l/min
11+16 models
10 l/min
Minimum required flow during defrost operation
04+08 models
12 l/min
11+16 models
15 l/min
Minimum required flow during backup heater operation
All models
12 l/min
If the 7H-01 error persists, the unit will stop operation and the user
interface will display an error code that needs to be reset manually.
Depending on the problem, this error code is different:
Error code
Detailed error
code
Description
7H
04
The water flow problems mainly
occurred during domestic hot
water operation. Check the
domestic hot water circuit.
7H
05
The water flow problems mainly
occurred during space heating
operation. Check the space
heating circuit.
7H
06
The water flow problems mainly
occurred during defrost
operation. Check the space
heating circuit.
Additionally, this error code might
be an indication of frost damage
to the plate heat exchanger. In
that case, contact your local
dealer.
INFORMATION
Error AJ-03 is reset automatically from the moment there is
a normal tank heat-up.
INFORMATION
Error EC-04 is reset automatically from the moment the
domestic hot water tank is preheated to a sufficiently high
temperature.
Error code UA 17: Tank type problem
Possible causes
Corrective action
No backup heater is installed,
and [E-05] is set to "0".
Set [E-05] to "1".
[E-07] is set to "1", "3", "4", or "6",
which is NOT allowed.
Set [E-07] correctly, according to
the system setup.
[E-07] is set to "0", while [D-02] is
NOT set to "3" or "4" (NO
recirculation pump and NO
backup heater installed).
Install a recirculation pump and
set [D-02] correctly, according to
the system setup.
[E-07] is set to "5", while [D-02] is
NOT set to "3" or "4" (NO
recirculation pump and NO
backup heater installed).
Install a recirculation pump and
set [D-02] correctly, according to
the system setup.
13
Disposal
13.1
Overview: Disposal
Typical workflow
Disposing of the system typically consists of the following stages:
1
Pumping down the system.
2
Dismantling the system according to the applicable legislation.
3
Treating the refrigerant, oil and other parts according to the
applicable legislation.
INFORMATION
For more details, see the service manual.
13.2
About pump down
The unit is equipped with an automatic pump down function, with
which you can collect all refrigerant from the system into the outdoor
unit.
Example:
To protect the environment, pump down when relocating
the unit or when disposing of the unit.
NOTICE
The outdoor unit is equipped with a low pressure switch or
a low pressure sensor to protect the compressor by turning
it OFF. NEVER short-circuit the low pressure switch during
pump down operation.
Before pumping down
NOTICE
Before you pump down, make sure the water temperature
(example: by performing a heating operation) and water
volume (example: by opening all heat emitters) are
sufficiently high. Pump down is done in cooling mode.