Rinnai REU-KBM3237FFUDHD-E Service Manual page 8

GAS PRESSURE SETTING
10. Move switch No. 8 of SW1 to 'ON' position (Fig. 3).
11. Push the PCB board switch A for one second (Fig. 4).
12. Calibrate "forced low" combustion using switch A (up) and
B (down) as required.
LOW Gas
Short flue
position
NG G20 1,2
G30
LPG 1,3
G31
Air /
G230 1,4
Prop.
(pressures in mbar)
13. Move switch No. 8 of SW1 to 'OFF' position and then back
to 'ON' position (Fig. 6).
14. Push the PC board switch B for one second (Fig. 4).
15. Calibrate "forced high" combustion using switch A (up) and
B (down) as required.
HIGH Gas
Short flue
position
NG G20 7,6
G30
LPG 9,2
G31
Air /
G230 9,0
Prop.
(pressures in mbar)
16. Move switch No. 8 of SW1 to 'OFF' position (Fig. 5).
17. Close hot water taps and turn 'OFF' the gas supply and
230V power supply.
18. Remove pressure gauge and replace sealing screw. Turn
'ON' the gas supply and power.
19. Operate unit and check gas leaks.
20. Replace the front cover of the appliance.
Internal External
Long flue
position
1,3
1,4
1,5
Internal External
Long flue
position
8,5
9,7
9,8
-
1,2
1,3
1,4
Fig. 4
-
8,1
8,9
9,2
8
Fig. 3
Fig. 4
Fig. 5
Fig. 6