3 Third party components
Service manual
95
EBLQ+EDLQ011~W1 + EBLQ+EDLQ011~0W1
+ EK(2)CB EKMB9W1
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02
3.3
Water circuit
3.3.1
Checking procedures
To check for an external pump
1
Inspect the installation outside the unit and check for the
presence of an external pump. This may have an impact on the
water flow inside the unit.
An external pump was found in
the installation?
Action
Yes
Remove the external pump from
the installation, see
.
No
Return to the troubleshooting of
the specific error and continue
with the next procedure.
To check the water pressure
1
Read the water pressure on the home screen of the user
interface. The pressure MUST be 1~2 bar.
Is the water pressure correct?
Action
Yes
Return to the troubleshooting of
the specific error and continue
with the next procedure.
No
Add or remove water from the
water circuit until the pressure is
correct, see
.
To check the water flow
1
Navigate to the information menu on the user interface, see
installer reference guide for correct procedure.
2
Read the water flow in the information menu on the user
interface. The water flow MUST be 12 l/min.
Is the water flow correct?
Action
Yes
Return to the troubleshooting of
the specific error and continue
with the next procedure.
No
Add or remove water from the
water circuit until the flow is
correct, see
.
To check if the water circuit stop valves are open
1
The stop valves are located outside the unit. Check that all
valves are in open position (in line with the piping).
All valves are open?
Action
Yes
Return to the troubleshooting of
the specific error and continue
with the next procedure.
No
Open the specific valve(s) of the
water circuit, see
.
To check the air purge valves
INFORMATION
It is recommended to perform the checks in the listed
order.
To check if the air purge valves are open
Prerequisite:
Turn OFF the unit via the user interface.
Prerequisite:
Turn OFF the respective circuit breaker.
Prerequisite:
Remove the required plate work, see
.
1
Check that the air purge valve of the unit is in the open position.
INFORMATION
If a backup heater kit is installed, check that the air purge
valve of the backup heater kit is in the open position.
a
a
Air purge valve
2
Also check all air purge valves installed outside the unit.
All air purge valves are open?
Action
Yes
and
continue with the next procedure.
No
Open the specific air purge
valve(s) of the water circuit, see
"3.3.2 Repair procedures" on
page 96
To check if the air purge valves are installed on the correct
locations
1
Check the installation outside the unit. All highest points of the
installation MUST have air purge valves installed. The air purge
valves MUST NOT be installed on other locations.
All air purge valves are
installed on the correct
locations?
Action
Yes
and
continue with the next procedure.
No
Install the specific air purge
valve(s) on the correct location(s)
in the water circuit, see
"3.3.2 Repair procedures" on
page 96
Problem solved?
After all checking procedures listed above have been performed:
Is the problem solved?
Action
Yes
No further actions required.
No
Return to the troubleshooting of
the specific error and continue
with the next procedure.
