Rinnai 26i - Manual (Page 30)

30
GAS PRESSURE SETTING
11. Remove rubber access plug and adjust the
regulator screw on the modulating valve (fig. 4) as
required to the pressure below. Replace rubber
access plug.
12. Set the Rinnai Infinity to 'Forced High'
combustion by setting no. 7 and no. 8
dipswitches of the top set of switches (SW1) to
'ON'. (fig.5) Ensure maximum water flow.
13. Check the burner test point pressure.
14. Adjust the high pressure potentiometer on
the Printed Circuit Board above SW1 (fig. 6) to
the pressure shown below. The potentiometer
is very sensitive, turn no more than a few
degrees at a time; then let the pressure settle
down before turning it more.
15. IMPORTANT: Set dip switch no. 7 and no. 8
on the top set of switches (SW1) to 'OFF'
to return the appliance to 'Normal' combustion.
16. Close hot water tap.
17. Turn OFF the gas supply and 230V power
supply.
18. Remove pressure gauge, and replace sealing
screw
19. Turn 'ON' the gas supply and 230V power
supply.
20. Operate unit and check for gas leaks at test
point.
21. Replace the front cover of the appliance.
N.G 1.9 mbar
LPG 2.3 mbar
N.G 8.5 mbar
LPG 10.8 mbar
off on SW1
1
2
3
4
5
6
7
8
fig. 5
High Press.
Potentiometer
CAUTION
fig. 6