Installation and operating instruction
Oil condensing boiler WTC-OB 18-B
9 Servicing
83311002 1/2018-03 La
70-132
9 Servicing
9.1 Notes on servicing
DANGER
Risk of electric shock
Working on the device when voltage is applied can lead to electric shock.
Isolate the device from the power supply prior to starting any work.
Safeguard against accidental restart.
DANGER
Danger of poisoning by escaping flue gas
Flue gas can escape if the siphon is not filled. Inhalation leads to dizziness, nausea
and eventually death.
Check the fill level of the siphon at regular intervals and replenish if necessary, in
particular when the system has been shut down for longer periods or has been
operated at high return temperatures > 55 °C.
WARNING
Danger of getting burned on hot components
Hot components can lead to burns.
Allow components to cool, if necessary with the aid of parameter
73
(program
Pr7
).
Servicing must only be carried out by qualified personnel.
Inspect the system at least once a year, carry out servicing and any repairs as ne-
cessary.
Clean the heat cell at least every 2 years. Weishaupt recommends annual cleaning.
Components, which show increased wear and tear or whose design lifespan is or
will be exceeded prior to the next service should be replaced as a precaution
[ch. 9.2].
Weishaupt recommends a service contract is entered into to ensure regular in-
spections.
The following components must only be replaced and must not be repaired:
boiler electronics WCM-OB-CPU,
flame sensor,
oil solenoid valves,
safety valve.
Prior to every servicing
Inform the operator about the extent of service work to be carried out.
Switch off mains switch of installation and safeguard against accidental reactiva-
tion.
Close fuel shut off devices.
Remove front panel [ch. 4].
Carry out servicing in accordance with the enclosed inspection card (Print No.
837567xx).
