Commissioning - Wolf CGB-11 Installation Instructions Manual

The initial start-up and operation of the boiler as
well as the user instruction must only be carried
out by a qualified contractor.
- Prior to installation, ensure that the boiler matches the type
of available gas. See the following table for permissible
Wobbe index subject to gas type.
- Check the boiler and system for leaks. Prevent water
leaks.
- Check location and seating of the installation.
- Check all connections and component joints for tightness.
If tightness cannot be ensured then there is a risk
of water damage
- Check that all flue gas accessories have been correctly
installed.
- Open the shut-off valves on flow and return.
- Open the gas shut-off valve.
- Switch ON the system ON/OFF switch on the control unit.
- Ignite and check the regular flame structure of the main
burner.
- If the system water pressure falls below 1.5 bar, top up
with water until a pressure of 1.5 to max. 2.5 bar has been
achieved.
24

Commissioning

Table: Wobbe index subject to type of gas
Fig.: Shut-off valves
Fig.: Control unit overview
Natural gas H 15.0:
W = 11.4 -15.2 kWh/m³ = 40.9 - 54.7 MJ/m³
S
LPG P
W = 20.2 -24.3 kWh/m³ = 72.9 -87.3 MJ/m³
S
Flow shut-off
Gas shut-off
valve
valve
ON/OFF switch Reset button
Return shut-
off valve
Thermomanometer
3061344_201509