Testing Outputs (Relay Test) - Viessmann VITOPEND 200 Installation And Service Instructions Manual

Testing outputs (relay test)

Weather–compensated control unit
Press the following keys:
1. a
"1r" flashes
2. d
to select heating circuit
without mixer A1
or
3. a
"2r" flashes
Subject to the actual equipment level, the following relay outputs can be
controlled:
Display screen
Base load
Full load
Int. pump ON
Heating valve
Centre position, valve
DHW valve
Heating pump M2 ON
Mixer open
Mixer closed
Output int. ON
Heating pump A1 ON
Central fault ON
Constant temperature control units
Press the following keys:
1. K + d simultaneously for
approx. 2 s
Subject to the actual equipment level, the following relay outputs can be
controlled:
Display screen
1
2
4. d
5. K + d simultaneously for
6. a/b
7. d
Explanation
Burner modulation base load
Burner modulation full load
Int. output 20
Diverter valve
Diverter valve in centre position (filling)
Diverter valve
Mixer extension
Mixer extension
Mixer extension
Internal extension
External extension
External extension
2. a/b
3. d
Explanation
Burner modulation base load
Burner modulation full load
Service scans
to select heating circuit
with mixer M2
approx. 2 s
Control relay outputs.
Terminate the relay test.
Control relay outputs.
Terminate the relay test.
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