Daikin Rotex EKSRPS4A, Operating And Installation Instructions

Page: 33 / 44

7 x Faults and malfunctions
FA ROTEX Solaris RPS4 -
04/2016 33
Sensor-specific error messages
The Solaris R4 regulator reacts as follows when the cable is
broken or in the event of a short circuit in the sensors or sensor
cables (see tab. 7-2):
– A flashing code letter in the display indicates the fault in the
status column and a message appears.
– The lamp associated with the fault flashes.
– In addition, the control unit automatically intervenes in system
operation.
All other sensor values remain accessible via the arrow keys.
Tab. 7-2 Sensor fault table
7.2 Troubleshooting
Operating events similar to faults
The storage tank temperature "T
S
" in the solar storage tank
reaches the value set in the parameter [TS max]:
– Pumps are switched off, the system is drained. In the
Solaris R4 regulator, the T
S
light flashes, the display shows
the measured storage tank temperature. As soon as the cyl-
inder temperature falls more than 2 K, normal system opera-
tion is resumed.
Temperature in the solar panel is higher than the restart
protection temperature [TK permitted]:
– Pumps are switched off. In the Solaris R4 regulator, the T
K
light flashes. If the set switch-on inhibit temperature falls by
more than 2 K, normal system operation is enabled automat-
ically.
Failures
Sensor Cause of the fault Status
(blinks)
Display Lamp
(flashing)
Light (flashes)
Collector temp.
Interruption K uuuu T
K
Long-term switch-off
of P
S
Short circuit –––– T
K
Return flow temp.
Interruption R uuuu T
R
Short circuit –––– T
R
Storage cylinder temp.
Interruption S uuuu T
S
Short circuit –––– T
S
Inflow temp. Voltage drop V –––– without lamp
Operation without FlowSensor
FlowSensor Voltage drop D –––– without lamp
In this case, short-term evaporation in the collectors is
possible. The unpressurised steam escapes into the
cyl-inder. On rare occasions, small volumes of water
vapour come out of the solar storage tank for short peri-
ods.
WARNING!
Live parts can cause an electric shock on
contact and cause life-threatening burns and
injuries.
Ɣ Electrical installations must always be carried
out by qualified electrical technicians in
conformity with the relevant electrical guide-
lines and the regulations of the electric
utilities company to prevent hazards from
damaged electric wiring.
Ɣ Rectification of damage to live components
of the RPS4 regulation and pump unit must
only be carried out by heating engineers
authorised and recognised by the energy
supply company.
Ɣ Before beginning the repair work, disconnect
the RPS4 regulation and pump unit from the
power supply (fuse, shut off main switch) and
secure against unintentional restart.
Ɣ Comply with the relevant safety at work
regulations.