Display screen
Brief scan
d
0
0
0
Variable
speed
pump
0 w/o
1 Wilo
2 Grundfos
Software
version
Variable
speed pump
0: no vari-
able speed
pump
Checking outputs (relay test)
Weather-compensated control unit
Press the following keys:
1.
K
+
d
simultaneously for
approx. 2 s.
2.
a
/
b
for the required relay out-
put.
3.
d
Relay test is completed.
The following relay outputs can be controlled subject to system design:
Display screen
Explanation
Base load
Burner modulation base load
Full load
Burner modulation full load
Intern.pump On
Int. output 20
Htg. system valve
Diverter valve set to heating mode
Valve in middle pos.
Diverter valve in central position (filling/draining)
DHW valve
Diverter valve set to DHW mode
Htg.cir.pump M2 On
Mixer extension
Mix.valve open
Mixer extension
Mix.valve closed
Mixer extension
Intern.output On
Output
sK
internal extension
Htg.cir.pump A1 On
External extension H1
DHW pump On
External extension H1
Recirc.pump On
External extension H1
Centr.fault ind.On
External extension H1
Temperatures, boiler coding card and brief scans
(cont.)
67
Service scans
5692
731
GB
Summary of Contents for VITODENS 333-F WS3A
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