Checking Outputs (Relay Test) - Viessmann Vitotronic 200 Operating Instructions Manual
Vitodens 200-w, b2ha
models 45 to 150
wall-mounted, gas-fired condensing boiler in conjunction
with the vitotronic 300-k mw2c cascade control
for operation with natural gas and liquid propane gas
heating input 55 to 530 mbh
16 to 150 kw
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Also See for Vitotronic 200:
- Service instructions manual (336 pages) ,
- Installation and service instructions for contractors (136 pages) ,
- Installation and service instructions manual (132 pages)
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Checking Outputs (Relay Test)
1. Press OK and
simultaneously for approximately
4 seconds.
2. "Actuator test"
The following relay outputs can be controlled subject to system design:
Display
All actuators
Base load
Full load
Output, internal
Output 21/28
Outp. int. exten. H1
EA1 output 1
14
Explanation
Off
All actuators are off.
On
Burner operated at minimum output; circulation pump sÖ is started.
On
Burner operated at maximum output; circulation pump sÖ is started.
On
Output sÖ active.
On
Output sA active.
On
Output 28/20 active.
On
Contact P - S at plug aBJ of extension EA1 closed.
Vitotronic 200 Operating
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