DORCHESTER DR-FC 25, Installation, Commissioning And Maintenance Instructions

Page: 37 / 98

Conversion to a different gas category
Instruction Manual DR-FC 37
is
n
Remark
In the event the supply pressure for a gas category is the same as the burner
pressure (see the gas tables in paragraph
3.4 ) then the gas control must be
fitted with a flat sealing plate with cork gasket. A burner pressure that
deviates in comparison to the supply pressure requires the use of a burner
pressure regulator with rubber gasket. Each conversion kit contains all the
necessary components.
12. If the flat sealing plate or burner pressure regulator need to be replaced:
- Unscrew the connector
0
from the gas control.
- If necessary, remove the flat sealing plate
!
or burner pressure
regulator
7
.
- If necessary, fit the flat sealing plate or burner pressure regulator
supplied with the conversion kit.
- Refit the connector to the gas control.
13. Refit the connector
1
of the hot surface igniter and flame probe to the
controller.
14. Re-fit the three-part gas coupling
2
.
c Note
15. Check the burner and supply pressure (see paragraph 3.11 ).
16. Replace the cover.
Legend
g
burner pressure regulator
h
burner pressure control cap
i
burner pressure control
adjusting screw
jJ
connector
k
flat sealing plate
l
supply pressure test nipple
m
burner pressure test nipple
Figure 3.13 Conversion of gas control
!
7
0
@
#
8
9
IMD-0079