89
Row (brief
scan)
Field
1
2
3
4
5
6
10:
Secondary pump
Variable
speed pump
0: Without
1: Wilo
2: Grundfos
3: Ascoli
Software ver-
sion, variable
speed pump
0: No variable
speed pump
0
0
0
0
11:
0
0
Software ver-
sion
Mixer exten-
sion, heating
circuit M2
0: No mixer
extension
0
Software ver-
sion
Mixer exten-
sion, heating
circuit M3
0: No mixer
extension
0
Testing outputs (relay test)
1. Press
OK
and
å
simultaneously for approx. 4 s.
2.
"System functions"
Service mode is being prepared, which can take
approx. 10 min
3.
"Actuator test"
Note
A pressure of at least 2 bar (0.2 MPa) must be present
in the process circuit before the
"System functions"
can be called up.
The following relay outputs can be controlled subject to the system equipment level:
Display
Explanation
All actuators
OFF
All actuators are off
Base load
ON
Burner operates at min. output. Secondary pump is on.
Full load
ON
Burner operates at max. output. Secondary pump is on.
Output, internal
ON
Internal output
sÖ
(secondary pump) enabled
Valve
Heating
3-way diverter valve set to heating mode
Valve
Centre
3-way diverter valve in central position (filling/draining)
Valve
DHW
3-way diverter valve set to DHW heating
Htg circ pump HC2
ON
Output for heating circuit pump enabled (extension heating circuit with mixer)
Mixer HC2
Open
Output for "Mixer open" enabled (extension heating circuit with mixer)
Mixer HC2
Close
Output for "Mixer close" enabled (extension heating circuit with mixer)
Htg circ pump HC3
ON
Output for heating circuit pump enabled (extension heating circuit with mixer)
Mixer HC3
Open
Output for "Mixer open" enabled (extension heating circuit with mixer)
Mixer HC3
Close
Output for "Mixer close" enabled (extension heating circuit with mixer)
Outp. int. exten. H1
ON
Output at internal extension enabled
AM1 output 1
ON
Output A1 at AM1 extension enabled
AM1 output 2
ON
Output A2 at AM1 extension enabled
EA1 output 1
ON
Contact P - S at plug
aBJ
of EA1 extension closed
Diagnosis and service scans
Diagnosis
(cont.)
5678 044 GB
Diagnosis
Summary of Contents for D2RA
Page 113: ...113 Maintenance Checking the Vitotronic 200 H accessories cont 5678 044 GB Maintenance ...
Page 133: ...133 Parts lists Sorption module hydraulics cont 5678 044 GB Components ...
Page 136: ...136 0001 0002 0003 0004 0005 Fig 83 Parts lists Miscellaneous 5678 044 GB Components ...
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