Checking Outputs (Relay Test) - Viessmann VITOLADENS333-F Service Instructions Manual

Service scans
Temperatures, boiler coding card and brief . . .
Brief
scan
Internal circulation
pump
8 Variable
speed
pump
0: w/o
1: Wilo
2: Grun-
dfos

Checking outputs (relay test)

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
Burner st 1 ON
Burner st 1 + 2 ON
Int. pump on
Heating valve
Valve central pos.
DHW valve
Mixer closed
Mixer open
Heating circuit p. M2 ON
Heating circuit p. A1 ON
Cylinder pump on
DHW circ. pump ON
Central fault ON
64
Display screen
Heating circuit pump to connection ex-
tension
Software Variable
version speed
variable pump
speed 0: w/o
pump 1: Wilo
0: no 2: Grun-
variable dfos
speed
pump
2. a/b
3. d
Explanation
Burner stage 1
Burner stage 2
Int. pump/output 20 ON
Diverter valve set to heating mode
Diverter valve in central position (filling/draining)
Diverter valve set to DHW mode
Mixer extension
Mixer extension
Mixer extension
Ext. Extension
Ext. Extension
Ext. Extension
Ext. Extension
(cont.)
Software Variable
version speed
variable pump
speed 0: w/o
pump 1: Wilo
0: no 2: Grun-
variable dfos
speed
pump
for the required relay out-
put.
Relay test is completed.
Software
version
variable
speed
pump
0: no vari-
able speed
pump