6
x
Faults and malfunctions
43
FA ROTEX Solaris RPS3 P2 - 06/2012
Tab. 6-2
Sensor fault table
6.2
Troubleshooting
Fault-type operational events:
Storage tank temperature "T
S
" in the hot water storage tank reaches the value set in parameter "T
S
max":
– The pumps are switched off, the system runs empty. On the Solaris R3P control system the T
S
light flashes, the display
shows the measured tank temperature. As soon as the storage temperature falls more than 2 K, normal system operation is
resumed.
Temperature in the solar panels is higher than the cut-in protection temperature "T
K
zul":
– The pumps are switched off. In the Solaris R3P control system the T
K
light flashes. If the set switch-on inhibit temperature
falls by more than 2 K, normal system operation is enabled automatically.
Faults
In the Solaris R3P control system the T
R
light flashes. Return temperature "T
R
" is greater than 40 °C and is 10 K higher than
the storage temperature "T
S
". The pumps are switched off. The cause is a defective or incorrectly connected sensor.
• Install the sensor correctly or replace it; normal system operation will be resumed.
The fault signal "W" is shown in the left column of the Solaris R3P control system display.
During the start procedure after expiry of time PsE and time UB the minimum flow corresponding to start phase "V1" table 5-1
was not reached at the FlowSensor. The system is temporarily blocked for 2 h and then automatically attempts to start.
Sensor
Cause of the
fault
Status
(flashes)
Display
Lamp
(flashing)
Consequence
Collector temp.
Interruption
K
uuuu
TK
Permanent switch-off of P1 and P2
Short circuit
––––
TK
Return flow temp.
Interruption
R
uuuu
TR
Short circuit
––––
TR
Storage tank temp.
Interruption
S
uuuu
TS
Short circuit
––––
TS
Inflow temp.
Voltage drop
V
––––
without lamp
Operation without FlowSensor
FlowSensor
Voltage drop
D
––––
without lamp
WARNING!
Live parts can cause an electric shock on contact and cause life-threatening burns and injuries.
• Electrical installations must always be carried out by qualified electrical technicians in conformity with the
relevant electrical guidelines and the regulations of the electric utilities company to prevent hazards from
damaged electric wiring.
• Faults on conducting parts of the Solaris RPS3 P2 may only be carried out by heating specialists who have
been authorised and accredited by the electrical utility company (EVU).
• Before commencing repair work, disconnect the Solaris RPS3 P2 and all system parts from the power
supply (fuse, switch off main switch) and prevent them from being switched on accidentally again.
• Comply with the relevant safety at work regulations.
CAUTION!
Danger of burning due to hot surfaces
• Let the burner cool down for a reasonably long time before maintenance and service work.
• Wear protective gloves.
