Conversion Procedure - State Water Heaters PRV 30 NORS G Installation And User Instructions Manual

2.7 Converting to another
type of gas
Description
Inletpressure
Burner pressure
Diameter main
injector
Diameter pilot
injector
For conversion of the appliance
from natural gas to another type of gas,
or vice versa, it is necessary to
exchange the pilot injector and the main
injector. The conversion may only be
executed by a qualified competent
person.
Procedure:
1. Close the main gas tap in the gas
supply;
2. Demount the burner (see
"Cleaning");
3. Replace the injector of the main
burner and the pilot burner with the
correct injectors from the
conversion set (see table above).
4a. Conversion from natural gas
to LP-gas:
- Put the pressure regulation of
the gas control block out of
operation. To do this the
temperature regulating knob
should be pulled straight
forward. Turn the 'no pr' (no
pressure regulation) screw
down tight (see figure10);
- Seal this setting with lacquer;
- Remount the burner in reverse
order;
- Open the main gas tap.
18
Unit
PRV 30 NORS
G20 G30 G31
mbar 20 30
mbar 12.5 30
mm 2.35 1.40 1.40 2.60
2x
mm 0.27 0.22 0.22 0.27
PRV 40 NORS
G20 G30 G31 G20
37 20 30
37 12.5 30
1.50 1.50 3.50
2x
0.22 0.22 0.27
4b. Conversion from LP-gas to natural
gas:
- Put the pressure regulator into
operation. To do this the
temperature regulating knob
should be pulled straight
forward. Next the red plastic
cover that is now visible, should
be removed. Turn the 'no pr' (no
pressure regulation) screw
completely up (see figure 10);
- Seal this setting with lacquer;
- Remount the burner in reverse
order;
- Open the main gas tap;
- Set the correct burner pressure
(see table above).
5. If necessary adjust the pilot
correctly (see "Pilot adjustment").
6. Fit the correct sticker from the
conversion set on the appliance so
that it is clear that the appliance
has been converted and on which
gas the appliance operates.
PRV 50 NRRS
G30 G31
37 20 30 37
37 10.5 30 37
1.95 1.95
2x
0.22 0.22