Checking The Flue System For Unrestricted Flow And Leaks; Setting Heating Curves; Checking And Resetting "Service" On The Programming Unit Of The Gas Condensing Module - Viessmann Vitovalor PT2 Installation And Service Instructions For Contractors

Commissioning, inspection, maintenance
Checking the combustion quality
Fuel cell module
1. Connect a flue gas analyser at flue gas port
the boiler flue connection.
Note
The fuel cell module must be in operation (power
generation) for the measurement.
2. Check the CO content.
The CO content must be < 1000 ppm for all gas
types.

Checking the flue system for unrestricted flow and leaks

Setting heating curves

Tap the following buttons:
1.
2. "Heating"
3. Select "Heating circuit 1" or "Heating circuit ..."
for the required heating circuit.

Checking and resetting "Service" on the programming unit of the gas condensing module

In the following cases,
tor flashes):
■ The specified limits have been reached.
There is cause for a warning.
■
Checking service messages
1.
2. for "Message lists"
3. for "Service".
Acknowledging a service
1. to acknowledge the maintenance messages
2. to confirm
Note
An acknowledged service message that was not reset
reappears the following Monday.
88
A
will be displayed (red indica-
(cont.)
on Note
A CO or O test on the fuel cell module is not neces-
2 2
sary.
4. "Heating curve"
5. Set the heating curve according to the require-
ments of the system using "Slope"+/
+/ .
–
6. to confirm
After a service has been carried out (resetting
service indicator)
1. " "
2. "Service"
3. Enter password "viservice".
4. Use to confirm.
5. "Service functions"
6. "Maintenance reset"
Note
The selected service parameters for hours run and
time intervals restart at 0.
or "Level"
–