Checking Outputs (Relay Test); Weather-Compensated Control Unit - Viessmann VITODENS 200-W Installation And Service Instructions Manual

Diagnosis and service scans
Diagnosis
(cont.)
Brief scan
F Output 157 con-
figuration
3
(value corre-
sponds to set-
ting of code 36
in group 1
"General")
F Software ver-
sion
4
F Stagnation time of the solar thermal system in h
5
F Night circulation, solar thermal system (number)
6
F Differential temperature monitoring
7
F
8
F Software ver-
sion
9

Checking outputs (relay test)

Weather-compensated control unit

1. Press OK and simultaneously for approx. 4 s.
å
The following relay outputs can be controlled subject to system design:
Display
All actuators
Base load
Full load
Output, internal
Output 21/28
Heating circ pump HC2
Mixer HC2
Mixer HC2
Heating circ pump HC3
Mixer HC3
Mixer HC3
Outp. int. exten. H1
AM1 output 1
AM1 output 2
80
Output 157
switching state
0: OFF
1: ON
OpenTherm extension (if installed)
DHW heating sta-
tus
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
On Output
sA
On Heating circuit pump output enabled (extension to heating circuit with
mixer)
Open "Mixer open" output enabled (extension to heating circuit with mixer)
Close "Mixer close" output enabled (extension to heating circuit with mixer)
On Heating circuit pump output enabled (extension to heating circuit with
mixer)
Open "Mixer open" output enabled (extension to heating circuit with mixer)
Close "Mixer close" output enabled (extension to heating circuit with mixer)
On Output at internal extension enabled
On Output A1 at extension AM1 enabled
On Output A2 at extension AM1 enabled
Display
Input DE1 Input DE2
switching state switching state
0: open 0: open
1: closed 1: closed
External hook-up 0 - 10 V
Display in %
Solar control module SM1
Solar central
heating backup
0: disabled
1: enabled
External hook-up 0 - 10 V
Display in %
2. "Actuator test"
active (boiler circuit pump)
active (circulation pump for cylinder heating)
Input DE3 switch-
ing state
0: open
1: closed
Output 22 switch-
ing state
0: OFF
1: ON