Water Circuit; Checking Procedures - Daikin Altherma EBLQ011CAV3 Service Manual

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?
Yes
No
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
No
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?
Yes
No
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?
Yes
No
To check the air purge valves
INFORMATION
It is recommended to perform the checks in the listed
order.
EBLQ+EDLQ011~016CAV3+W1 + EBLQ+EDLQ011~016CA3V3+W1
+ EK(2)CB07CAV3 + EKMBUHCA3V3+9W1
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02
Action
Remove the external pump from
the installation, see "3.3.2 Repair
procedures" on page 96.
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Add or remove water from the
water circuit until the pressure is
correct, see "3.3.2 Repair
procedures" on page 96.
Action
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Add or remove water from the
water circuit until the flow is
correct, see "3.3.2 Repair
procedures" on page 96.
Action
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Open the specific valve(s) of the
water circuit, see "3.3.2 Repair
procedures" on page 96.
3 Third party components
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
work" on page 77.
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 Air purge valve
2 Also check all air purge valves installed outside the unit.
All air purge valves are open? Action
Yes
No
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?
Yes
No
Problem solved?
After all checking procedures listed above have been performed:
Is the problem solved?
Yes
No
"2.19 Plate
a
Return to "To check the air purge
valves" on page 95 and
continue with the next procedure.
Open the specific air purge
valve(s) of the water circuit, see
"3.3.2 Repair procedures" on
page 96.
Action
Return to "To check the air purge
valves" on page 95 and
continue with the next procedure.
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.
Action
No further actions required.
Return to the troubleshooting of
the specific error and continue
with the next procedure.
Service manual
95