Rinnai Infinity 20e Installation And User Manual page 28

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.
N.G
Propane 1.9 mbar
12.Lock the regulating screw on the modulating
valve.
13.Set the appliance to 'Forced High' combustion
by setting both no. 3 and no. 4 dipswitches of
the bottom set of switches (SW1) to 'ON'.
(fig.5) Ensure maximum water flow.
14.Check the burner test point pressure.
15.Adjust the high pressure potentiometer on the
Printed Circuit Board between SW1 and SW2
to the pressure shown below. The potentiome-
ter is very sensitive, turn no more than a few
degrees at a time; then let the pressure settle
down before turning it more.
N.G
Propane
16.IMPORTANT: Set dip switch no. 3 and no. 4
on the bottom set of switches (SW1) to 'OFF'
to return the appliance to 'Normal' combustion.
(fig. 6)
17.Close hot water tap.
18.Turn OFF the gas supply and 230V power
supply.
19.Remove pressure gauge, and replace sealing
screw.
20.Turn 'ON' the gas supply and 230V power
supply.
21.Operate unit and check for gas leaks at test
point.
22.Replace the front cover of the appliance.
20e 16e
1.8 mbar 1.8 mbar
1.8 mbar
20e 16e
9.2 mbar 8.8 mbar
8.4 mbar 8.1 mbar
fig.4
LEGEND:
Black Section indicates
position of dip switch.
OFF ON
OFF
28
Regulator adjustment
screw access plug
Dip.SW1
ON
fig.5
OFF ON
ON
Dip.SW1
ON
fig.6
CAUTION