Checking Actuators And Sensors At The Vitotronic 300 Gw5B - Viessmann VITOTRONIC 300 Installation And Service Instructions Manual

Commissioning

Checking Actuators and Sensors at the Vitotronic 300 GW5B

The following actuators (relay outputs) can be switched subject to system equipment level:
Display
"All actuators"
"Burner modulation"
"Burner modulation"
"Burner modulation"
"Output 20"
"Output 52"
"Output 52"
"Output 52"
"Output 29"
"Compiled fault message"
"EA1 output 1"
"AM1 output 1"
"AM1 output 2"
Note: During burner operation, the pumps connected
to the control unit are started.
46
Explanation
Off All actuators have been switched off.
Open Modulating burner.
Neutral Modulating burner.
Close Modulating burner.
On Output 20 active.
Open
Neutral
Close
On Output 29 active.
On
On Contact "P - S" on plug aBJ of extension EA1 closed.
On Output active.
On Output active.
Vitotronic 300, GW5B & MW1B Installation and Service
Testing the relay
1. Press OK and simultaneously for approx. 4 sec.
2. "Actuator test"
Before an actuator is selected, all actuators are off.
Checking sensors
Service menu:
1. Press OK and simultaneously for approx. 4 sec.
2. "Diagnosis"
3. Select group (see page 50).
4. Scan actual temperature of the relevant sensor.