Viessmann VITOPLEX 300 Service Instructions Manual page 13

Inserting internal pipes; securing the boiler door and cleaning cover
Note
On gas burners, mount the gas supply pipe.
Danger
Escaping gas leads to a risk of explosion.
Check all gas connections for tightness.
A
4x
25 Nm
Fig. 4
1. Push internal pipes
C
Spring clip must snap into place behind
E
first constriction .
D
Note
This snapping into place prevents the internal
pipes from slipping forward during boiler operation.
Checking connections and sensor well on the heating water side for tight-
ness
Checking the function of safety equipment
Check safety valves, water level and pressure limiter in
accordance with manufacturer's details.
1 2
B C DE
far into hot gas flues .
B
Commissioning, inspection, maintenance
5 Nm
F
3
2. Tighten boiler door screws
25 Nm).
Tighten cleaning cover screws
Danger
Leaks can result in a risk of poisoning
through escaping gas.
Check gaskets carefully.
crosswise (torque
A
F (5 Nm).
13