In order to ensure that the fault has not been caused by
incorrect setting, set all the parameters back to the
factory settings before possible replacement of compo-
nents (see chapter 3.6.12).
If you are unable to determine the cause of failure
yourself, Daikin please consult a service technician.
Have the significant equipment data to hand (see fig. 6-
4 for the procedure):
– Type and manufacturer number of the Daikin
Altherma EHS(X/H)s (see heat pump identifica-
tion plate).
– Software versions (see fig. 6-4) of:
a: RoCon B1 control unit [Sw Nr B1/U1]
b: RoCon BM1 circuit board [Sw Nr Controller]
c: RTX-AL4 circuit board [Sw Nr RTX RT]
Info
Overview
Water Pressure
T-HS
Sw Nr B1/U1
Sw Nr RTX RT
Sw Nr Controller
Info
Sw Nr B1/U1
Sw Nr Controller
Sw Nr RTX RT
Fig. 6-4
Software information of the controller components
Operating instructions
46
Daikin RoCon HP
Daikin Control
008.1420844 – 05/2014
6
x
Errors, malfunctions and messages
6.2
Emergency operation
In the case of incorrect setting in the electronic control system or
malfunction of the 3-way diverter valves, emergency heating op-
eration can be maintained by activating the
special "Manual Op-
eration" function
on the control unit (see chapter 3.5.1 and the
supplementary instructions in the installation and mainte-
nance manual
of the Daikin Altherma EHS(X/H).
6.3
Malfunctions and fault codes
See Daikin Altherma EHS(X/H) installation and maintenance
manual; chapter "Faults, Malfunctions, Messages".