Checking The Static Pressure And Supply Pressure - Viessmann Vitopend 100-W Installation And Service Instructions For Contractors

Commissioning, inspection, maintenance
Further details regarding the individual steps
1. Check the gas type and Wobbe index
(W ) with your gas supply utility or
s
LPG supplier and compare them with
the details above.
2. If the details do not match, convert
the burner to the available gas type,
in accordance with the details provi-
ded by the gas supply utility or your
LPG supplier.
3. Record the gas type in the "Reports"
table.
Wobbe index range W
W
s
Natural gas H
LPG P

Checking the static pressure and supply pressure

Danger
CO formation as a result of incor-
rect burner adjustment can have
serious health implications.
Carry out a CO test before and
after work on gas appliances.
Note
The cover panel must be fitted to prevent
infiltrating air.
Operation with LPG
Purge the LPG tank twice during com-
missioning or replacement. Vent the tank
and gas connection line thoroughly after
purging.
1. Close the gas shut-off valve.
20
s
kWh/m 3 MJ/m 3
12.7 to 45.6 to
15.2 54.8
20.3 to 72.9 to
24.4 87.8
(cont.)
Note
The indicated Wobbe index W
apply to the following ambient condi-
tions:
■ Air pressure: 1013 mbar (101.3 kPa)
■ Temperature: 15 °C
2.
Release the screw inside test con-
nector A on the gas train but do not
remove, then connect the pressure
gauge.
3. Open the gas shut-off valve.
values
s