Service Functions; Calling Up Operating Conditions And Sensors - Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual

Vitoligno 300-C Installation/Service
Coding 2
(continued)
DHW
Coding in the factory set condition
DHW set temperature reheating suppression
67:0
Start hysteresis, DHW
85:0

Service Functions

Calling up Operating Conditions and Sensors

Reheating suppression of external solar
control unit disabled
Pump on: As soon as DHWactual <
DHWset - 5°F (-2.5 K)
Possible change
67:0 DHW set value during active reheating
to suppression of the external solar
67:90 control unit in °C
85:1 Setting range in K
to Pump on: As soon as DHW 2°F to 18°F
85:10 (1 K to 10 K) below DHWset
The following service functions can be selected:
"Diagnosis", see from page 95

"Actuator test", see from page 67

"Coding 1", see from page 78

"Coding 2", see from page 90

"Boiler"

"Fault history" see from page 96

"Service functions"

– Calibrating the probe
– Filling the vacuum module
– Changeover unit
– Loading standard setting
"Terminate service"

Calling up the service menu
The service menu can be activated from any menu.
Press the following keys:
1. d+ å simultaneously for approx. 4 sec.
The "Service" menu appears.
2. for the required service function.
|/~
Leaving the service menu
You can leave the service menu as follows:
By pressing ä

Automatically after 30 minutes

Via menu point "Terminate service"

You can verify operating conditions and check sensors
via the Information menu in the "Extended menu" and
in the "Service menu" (Diagnosis and Boiler submenus).
Coding/Service Checks
95