Viessmann VB2 Series Start-Up/Service Instructions

Start-up and Service
10
5. Close combustion chamber door
1. Push in combustion chamber insert
as far as it will go. Handle
must be at bottom.
The combustion chamber insert has a
lip at the back. Push combustion
chamber insert into combustion
chamber so that lip slides into matching
notch at the back of the combustion
chamber. Failure to do so will damage
door refractory when door is closed.
2. Close combustion chamber door
and tighten four bolts in a cross-wise
fashion.
3. Reconnect burner fuel line(s).
4. Mount burner hood (if applicable).
6. Check heating system and domestic hot water connections
Ensure all connections are pressure
tight.
7. Ensure proper operation of all safety devices
Ensure proper operation of low water
cut-off(s), pres sure relief valve, and
pump(s).
Flush float type low water cut-offs (if
used).
If oil-lubricated pumps are used, ensure
proper lubrication.
If motorized zone valve s are used,
check and service as necessary.
Refer to manufacturer’s instructions for
each of the components listed above.
Follow local regulations with respect to
backflow preventers.
Service (continued)
5167 405 v2.2
IMPORTANT
Reconnect oil burner and follow
instructions found in burner
installation/start-up manual.
WARNING
For gas burner, perform necessary
leak detection tests.
WARNING

Viessmann VB2 Series Specifications

General

Brand	Viessmann
Model	VB2 Series
Category	Boiler
Language	English