Viessmann VITODENS 200-W Service Instructions Manual page 93

Checking outputs (relay test)
Display
Open mixer HC3
Close mixer HC3
Start outp. int. exten. H1
Start AM1 output 1
Start AM1 output 2
Start EA1 output 1
Start solar circuit pump
Start solar circ pmp min
Start solar circ pmp max
Start sol. output sS
Constant temperature control unit
1. Press OK and å simultaneously
for approx. 4 s.
"Ü" flashes on the display.
2. Select Ú " " and confirm with OK.
3. Select required actuator (output) with
V/v (see following table):
The following actuators (relay outputs) can be controlled subject to system
design:
Display Explanation
1 Burner operates at minimum output; internal pump starts
2 Burner operates at maximum output; internal pump starts
3 Internal output sÖ (internal pump) is enabled
4 Diverter valve set to heating mode
5 Diverter valve in central position (filling/draining)
6 Diverter valve set to DHW mode
10 Internal extension output enabled
15 Solar circuit pump sF output at solar control module SM1 ena-
bled
(cont.)
Explanation
"Mixer open" output enabled (extension to heating circuit
with mixer)
"Mixer closed" output enabled (extension to heating cir-
cuit with mixer)
Output at internal extension enabled
Output A1 at extension AM1 enabled
Output A2 at extension AM1 enabled
Contacts P - S at plug aBJ for extension EA1 closed
Solar circuit pump sF output at solar control module SM1
enabled
Solar circuit pump output at solar control module SM1
switched to minimum speed
Solar circuit pump output at solar control module SM1
switched to maximum speed
Output sS at solar control module SM1 enabled
4. Confirm selected actuator with OK.
The display shows the number for the
activated actuator and "ON".
Diagnosis and service scans
93