Checking Outputs (Relay Test) - Viessmann VITODENS 200-W Service Instructions Manual

Vitodens 200-W B2HA 112, 150 Service

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
Htg circ pump HC2
Mixing valve HC2
Mixing valve HC2
Htg circ pump HC3
Mixing valve HC3
Mixing valve HC3
Outp. int. exten. H1
AM1 output 1
AM1 output 2
EA1 output 1
Solar circuit pump
Solar circuit pump
minimum
Solar circuit pump
maximum
SM1 output 22
Explanation
Off All actuators are off.
On Burner operated at minimum output; circulation pump is started.
On Burner operated at maximum output; circulation pump is started.
On
Output sÖ active (boiler circuit pump).
On
Output sA active (circulation pump for DHW tank heating).
On Heating circuit pump output enabled (extension to heating circuit with mixing valve).
Open "Mixing valve open" output enabled (extension to heating circuit with mixing valve).
Close "Mixing valve close" output enabled (extension to heating circuit with mixing valve).
On Heating circuit pump output enabled (extension to heating circuit with mixing valve).
Open "Mixing valve open" output enabled (extension to heating circuit with mixing valve).
Close "Mixing valve close" output enabled (extension to heating circuit with mixing valve).
On Output at internal extension enabled.
On Output A1 at extension AM1 enabled.
On Output A2 at extension AM1 enabled.
On
Contact P - S at plug aBJ of extension EA1 closed.
On
Solar circuit pump output sF on solar control module SM1 active.
On Solar circuit pump output on solar control module SM1 switched to minimum
speed.
On Solar circuit pump output on solar control module SM1 switched to maximum
speed.
On
Output sS on solar control module SM1 active.
Diagnosis and Service Scans
71