Daikin Altherma EBLQ011CA3V3 - Repair Procedures

3 Third party components
Service manual
96
EBLQ+EDLQ011~016CAV3+W1 + EBLQ+EDLQ011~016CA3V3+W1
+ EK(2)CB07CAV3 + EKMBUHCA3V3+9W1
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02
To check for an external heat source
1 Inspect the installation outside the unit and check for the
presence of an external heat source. This may have an impact
on the water temperature inside the unit.
An external heat source was
found in the installation?
Action
Yes Remove the external heat source
from the installation, see
"3.3.2Repair procedures"on
page96.
No Return to the troubleshooting of
the specific error and continue
with the next procedure.
To check if a by-pass is installed in the water
circuit
1 A by‑pass MUST be installed in the water circuit outside the
unit. This is needed to make sure that water can still flow
through the circuit even when all loops (underfloor heating,
radiators, …) are shut‑off (e.g. for anti‑freeze function).
b c
a
a By‑pass
b Underfloor heating circuit
c Radiators circuit
Is a by‑pass installed in the
water circuit?
Action
Yes Return to the troubleshooting of
the specific error and continue
with the next procedure.
No Install a by‑pass in the water
circuit, see "3.3.2Repair
procedures"on page96.
To check for a leaking field installed domestic hot
water tap
1 Inspect the installation outside the unit and check for a leaking
domestic hot water tap.
Was a leaking domestic hot
water tap found in the
installation?
Action
Yes Replace the leaking domestic hot
water tap, see "3.3.2Repair
procedures"on page96.
No Return to the troubleshooting of
the specific error and continue
with the next procedure.
To check for leaks in the water circuit
1 Inspect the installation outside the unit and check for leaks.
A leak was found in the
installation?
Action
Yes Repair the leak in the installation,
see "3.3.2Repair procedures"on
page96.
A leak was found in the
installation?
Action
No Return to the troubleshooting of
the specific error and continue
with the next procedure.
To check the main water supply and pressure
1 Check that the main water supply and pressure of the
installation is within the expected range (>1bar).
Main water supply and
pressure within expected
range?
Action
Yes Return to the troubleshooting of
the specific error and continue
with the next procedure.
No Adjust the main water supply of
the installation, see "3.3.2Repair
procedures"on page96.
3.3.2 Repair procedures
To remove the external pump from the water
circuit
1 If an external pump is found in the installation outside the unit,
the pump MUST be programmed as such that it ONLY works
when the water pump of the unit is off. See the specific dealer
manual of the external pump for this procedure.
a
a
b
c
d
a External pump
b By‑pass
c Underfloor heating circuit
d Radiators circuit
2 If impossible to program as such, the external pump needs to
be removed from the installation.
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.
To remove/drain water from the water circuit
INFORMATION
This procedure partially drains the water circuit, sufficient
for component replacement.
Prerequisite: Turn OFF the unit via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see "2.19 Plate
work"on page77.
1 Connect the drain hose to the drain and fill valve.