Weishaupt WTC-OW 15-A, Operating Instructions Manual

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Display/set up Range Comment
S = Summer operation S No external sensor
W = Winter operation W connected to B1
Current / Change-over External sensor
external temperature 10°C – 30°C connected to B1
temperature Summer/Winter
Hot water set point 30°C – 65°C
(– – – = HW operation off)
Chimney sweep function minimum rating Installation & operating
multistage ratings setting – instructions f. heat. eng.
maximum rating Ch. 5.5.2 and 10.3
CODE input Installation & operating
Entry to heating engineer 0 – 254 instructions f. heat. eng.
level Ch. 6.3
6
What to do should problems occur
reset
11
Adjust settings
To avoid damage to the system, do not reset the
boiler more than twice.
If the boiler locks out for a third time:
1. Note down message displayed
2. Request a service
Possible fault displays:
Display Description Action required
F21 no flame Check oil supply
formation
Further fault descriptions can be found in the installation and
operating manual WTC-OW 15-A.
Note The system is not frost protected during lockout.
After a lockout, the unit can change over to a purge period
of one minute. It is not possible to reset the unit during this
time.
ATTENTION