Converting To Natural Gas Ll - Viessmann MatriX Service Instructions For Contractors

Converting to natural gas LL

(Not in or )
a c
For conversion to natural gas LL, remove the E gas
restrictor and rubber cork gasket from the flange on
the gas train.
1. Close the gas shut-off valve.
2. Switch OFF the system ON/OFF switch on the
control unit.
4.
Fig. 2
Control cable
A
Seal ring
B
C Gas restrictor
9. Assemble the burner in reverse order.
Affix supplied label "Set to..."
label.
Note
Check control cables for:
■ Connection and kink-free routing
■ Application and seating of retaining clips
Danger
Escaping gas leads to a risk of explosion.
Check the fitting for gas tightness.
7.
8.
A C
B D
6.
5.
over the existing
E
Commissioning, inspection, maintenance
3. Switch OFF the mains isolator (outside the installa-
tion room) or isolate the mains power and secure
against unintentional reconnection.
Rubber cork gasket
D
Label
E
!
Please note
The use of leak detection spray can result in
faulty operation.
Leak detection spray must not come into contact
with electrical contacts.
E
11