Third Party Components; Power Supply; Checking Procedures - Daikin Altherma EBLQ011CAV3 Service Manual

To remove the water pump housing
Prerequisite: Turn OFF the unit via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
work" on page 77.
1 Drain water from the water circuit, see
procedures" on page 96.
2 Disconnect the connector from the water pump motor.
a Connector
b Nut
c Water pump housing
3 Unscrew the upper and lower nuts that fix the water pump
housing to the water circuit pipes.
CAUTION
Use a counterforce when unscrewing or tightening the nuts
to make sure NOT to damage the piping.
4 Remove the water pump housing.
5 To install the water pump housing, see
procedures" on page 90.
To install the water pump housing
1 Install the water pump housing in the correct location.
a Connector
b Nut
c Water pump housing
EBLQ+EDLQ011~016CAV3+W1 + EBLQ+EDLQ011~016CA3V3+W1
+ EK(2)CB07CAV3 + EKMBUHCA3V3+9W1
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02
"2.19 Plate
"3.3.2 Repair
b c
b
"2.26.2 Repair
b c
b
2 Fix the water circuit pipes to the water pump housing by
tightening the upper and lower nuts.
CAUTION
Use a counterforce when unscrewing or tightening the nuts
to make sure NOT to damage the piping.
3 Connect the connector to the water pump motor.
4 Open the valve (if equipped) of the water circuit towards the
expansion vessel.
CAUTION
Make sure to open the valve (if equipped) towards the
expansion vessel, otherwise the overpressure will be
generated.
a
5 Open the stop valves and add water to the water circuit if
needed, see "3.3.2 Repair procedures" on
Is the problem solved?
Yes
No
3

Third party components

3.1

Power supply

3.1.1

Checking procedures

To check if the power supply is conform with the
regulations
1 Check that the power source is in line with the requirements
described in the databook.
Is the power supply conform
with the regulations?
Yes
No
To check the wiring between the hydro PCB and
extension PCB
a
1 Check that all connectors are fully plugged‑in. All colour codes
MUST correspond.
2 Check that no connectors are damaged.
3 Check that the wiring corresponds with the wiring diagram, see
"5.2 Wiring diagram" on
Is all wiring between the hydro
PCB and extension PCB
correct?
Yes
No
3 Third party components
page 96.
Action
No further actions required.
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Action
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Adjust the power supply, see
"3.1.2 Repair procedures" on
page 92.
page 101.
Action
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Adjust the wiring where needed,
see "3.1.2 Repair procedures" on
page 92.
Service manual
91