Checking The Sensors; Service Indicator; Acknowledging The Service Display - Viessmann VITOTRONIC 200 Installation And Service Instructions Manual

Service scans
Carrying out an actuator test
Display
"DHW circ pump"
"Central fault message"
"Htg circ pump HC2"
"Mixer HC2"
"Mixer HC2"
"Htg circ pump HC3"
"Mixer HC3"
"Mixer HC3"
"EA1 output 1"
"Solar circuit pump"
"Solar circ pmp min"
"Solar circ pmp max"
"SM1 output "
sS
Information regarding the mixer motor rotational
direction
The flow temperature must rise when the mixer opens.
If the temperature drops, the motor is turning in the
wrong direction or the mixer set is incorrectly fitted
(observe the mixer installation instructions).

Checking the sensors

1. Press OK and simultaneously for approx. 4 s.
2. "Diagnosis"

Service indicator

Set limits in coding addresses "1F", "21" and "23" in
the "Boiler" group.
When these values are reached, "Service" appears
on the display and flashes.

Acknowledging the service display

1. Follow the instructions on the display.
The service message is transferred to the menu.
58
(cont.)
Explanation
On Actuator at output
On Central fault message facility at output
sion.
On
Actuator at output
with mixer M2)
Open
Actuator at output
with mixer M2)
Close
Actuator at output
with mixer M2)
On Actuator at output
with mixer M3)
Open Actuator at output
with mixer M3)
Close Actuator at output
with mixer M3)
On Contact "P - S" on plug
On Solar circuit pump at output
type SM1
On Solar circuit pump at output
type SM1 set to min. speed.
On Solar circuit pump at output
type SM1 set to max. speed.
On Actuator at output
3. Select group (see page 55).
4. Scan actual temperature of the relevant sensor.
Note
If a service is carried out prematurely, set code "24:1"
in the "Boiler" group to "24:0". The selected service
parameters for hours run and time intervals restart at
0.
If coding address "24" is not reset, "Service" will be
displayed again on the following Monday.
2. Service the appliance.
sK
aBJ of EA1 exten-
sÖ of mixer extension kit (heating circuit
gS of mixer extension kit (heating circuit
gS of mixer extension kit (heating circuit
of mixer extension kit (heating circuit
sÖ
of mixer extension kit (heating circuit
gS
of mixer extension kit (heating circuit
gS
of EA1 extension closed.
aBJ
at solar control module,
sF
at solar control module,
sF
at solar control module,
sF
at solar control module, type SM1
sS