Rinnai INFINITY REU-3203W Service Manual page 45

11) Adjust the regulator screw on the modulating valve as
required to the pressure below. (fig 4)
Pressure Setting low
N.G.
Prop. G
LPG
12) Lock the regulating screw on the modulating valve.
13) Set the Infinity to 'Forced High' combustion by setting
both No. 2 and No. 3 dipswitches of the bottom (SW2)
set to 'ON'. (fig 5) Ensure maximum water flow.
14) Check the burner test point pressure.
15) Adjust the high pressure Potentiometer (POT) on the
Printed Circuit Board (PCB). As required to the
pressure shown.
Pressure Setting high
N.G.
Prop. G
LPG
16) IMPORTANT: Set dip switches No's 2 and 3 on the
bottom (SW2) set of switches to 'OFF' to return the
appliance to 'Normal' combustion.
17) Close hot water tap.
18) Turn OFF the gas supply and 240V power supply.
19) Remove pressure gauge, and replace sealing screw.
20) Turn 'ON' the gas supply and 240V power supply.
21) Operate unit and check for gas leaks at test point.
22) Replace the front cover of the appliance.
Infinity REU-3203W
0.18 kPa
0.35 kPa
0.35 kPa
0.74 kPa
1.76 kPa
1.76 kPa
Warning
DURING PRESSURE TESTING OF THE INSTALATION ENSURE
GAS COCK SITUATED BEFORE UNIT IS SHUT OFF.
fAILURE TO DO SO MAY RESULT IN SERIOUS DAMAGE TO
THE APPLIANCE AND POSSIBLE INJURY.
- 40 - ©Rinnai