Checking Outputs (Relay Test) - Viessmann Vitodens 333 Service Instructions Manual

Temperatures, boiler coding card and brief . . .
Brief
scan
Boiler
7 0
Internal circulation
pump
8 Variable
speed
pump
0: w/o
1: Wilo
2: Grun-
dfos

Checking outputs (relay test)

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
Display screen
Heating circuit A1
(w/o mixer)
0 Remote
control
0: w/o
1: Vitotr-
ol 200
2: Vitotr-
ol 300
Heating circuit pump to connection ex-
tension
Software Variable
version speed
variable pump
speed 0: w/o
pump 1: Wilo
0: w/o 2: Grun-
variable dfos
speed
pump
2. a/b
3. d
Explanation
Burner modulation base load
Service scans
(cont.)
Heating circuit M2
(with mixer)
Software Remote
version control
Remote 0: w/o
control 1: Vitotr-
0: w/o re- ol 200
mote 2: Vitotr-
control ol 300
Software Variable
version speed
variable pump
speed 0: w/o
pump 1: Wilo
0: w/o 2: Grun-
variable dfos
speed
pump
Control relay outputs.
Relay test ended.
Software
version
Remote
control
0: w/o re-
mote con-
trol
Software
version
variable
speed
pump
0: w/o vari-
able speed
pump
65