Setting Max. Heating Output (Gas Condensing Module); Naming The Heating Circuits; Entering Heating Contractor Contact Details; Measuring Connection Pressure (Flow Pressure) - Viessmann Vitovalor PT2 Installation And Service Instructions For Contractors

Filling system separation circuit fuel cell...
13. Regulate pressure again using fill valve
1.5 bar.
14. Check whether fill valve
sealed.
15. Dismantle the fill hose and drain hose.
Checking all connections on the heating water and DHW sides for leaks

Setting max. heating output (gas condensing module)

A limit can be set on the maximum heating output for
heating mode. The limit is set via the modulation
range. The upper limit of the max. adjustable heating
output is set by parameters specific to the appliance.

Naming the heating circuits

In the delivered condition, the heating circuits are des-
ignated "Heating circuit 1", "Heating circuit 2",
"Heating circuit ..." (if installed).
If the system user prefers, the heating circuits can be
renamed to suit the specific system.

Entering heating contractor contact details

The system operator can call up contact details when
required and notify the heating contractor.
1.
2. Select "Information".

Measuring connection pressure (flow pressure)

Danger
CO formation as a result of incorrect burner
adjustment can have serious health implications.
Always carry out a CO test before and after
work on gas appliances.
Note
To measure the connection pressure, operate the gas
condensing boiler with max. heating output (DHW
heating).
D to
and drain valve are
D F
Commissioning, inspection, maintenance
(cont.)
16. Lock filling connector
with the caps.
17. Once air stops escaping through air vent valve
switch off the fuel cell circulation pump using the
software tool or the actuator and sensor test (Sys-
tem separation circuit pump OFF).
The adjustment is made in parameter 596.0 "Maxi-
mum heating output". See page 93.
To enter names for heating circuits:
Operating instructions
3. Select "Service contact details".
4. Fill in each field and confirm with OK.
C and drain connection E
H
,
69