Daikin EBLA14DA3V3 - Page 301

4 | Third party components
Service manual
301
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
All valves are open? Action
No Open the specific valve(s) of the water
circuit, see "4.3.2Repair
procedures"[4302].
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 "4.3.2Repair
procedures"[4302].
No Return to the troubleshooting of the
specific error and continue with the
next procedure.
To check if the field installed 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 Return to the troubleshooting of the
specific error and continue with the
next procedure.
No Install the specific air purge valve(s) on
the correct location(s) in the water
circuit, see "4.3.2Repair
procedures"[4302].
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
d
e
a By‑pass
b Underfloor heating (cooling) circuit
c Radiators circuit
d Indoor or outdoor unit
e Space heating (cooling) water circuit