Rinnai HD250E REU-V3232WC, Service Manual

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Infinity REU-V3232W /HD250E REU-V3232WC - 40 - Issue 1 - 8/09/03 ©Rinnai
11) Adjust the regulator screw on the modulating valve as
required to the pressure below. (fig. 4).
12) Lock the regulating screw on the modulating valve.
Pressure Setting low
N.G. 0.18 kPa
Prop. G 0.35 kPa
LPG (NZ) 0.35 kPa
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. 0.74 kPa
Prop. G 1.76 kPa
LPG (NZ) 1.53 kPa
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.
Warning
DURING PRESSURE TESTING OF THE INSTALLATION ENSURE GAS
COCK SITUATED BEFORE UNIT IS SHUT OFF.
FAILURE TO DO SO MAY RESULT IN SERIOUS DAMAGE TO THE
APPLIANCE AND POSSIBLE INJURY.
fig. 4
fig. 5