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TESTING
Testing Unit
Purge air from gas line.
Refer to pipe sizing chart if in doubt about the size
of the gas line.
Connection can easily be reached from the top,
rear or the unit. Check for leaks using soapy water
or leak detection spray after turning gas on.
Plug unit in and turn power on, (CAUTION: 230V
AC inside unit.)
Turn thermostat to HIGH, turn control to ON.
Unit should ignite within 10 seconds.
If unit does not ignite there may still be air in the
gas line. Turn control OFF, then ON.
Check pressure, Regulator is factory set.
If pressure is incorrect, CHECK SUPPLY
PRESSURE BEFORE ALTERING REGULATOR.
The heater must be stopped before checking
pressure.
Remove the 2 test point screws and connect the
manometer hoses to the differential pressure test
points on the modulating valve and burner manifold.
Turn the unit to the ON position using the On/Off
button on the control panel and check pressure. If
pressure is correct remove manometer and replace
test point screw.
Leak test all gas connections.
Fault - Finding Procedure
If unable to get the unit to operate correctly, contact
Rinnai UK.
Do not use this heater if any part has been under
water. Immediately call a qualified service
technician to inspect the heater and to replace any
part of the control system and any gas control that
has gotten wet.
WARNING: Do not operate appliance with any
panels removed, cracked or broken.
Installation and repair should be done by a qualified
service person. The appliance should be inspected
before use and at least annually by a qualified
service person.
More frequent cleaning may be required due to
excessive lint from carpeting, bedding material,etc.
It is imperative that control compartments, burners,
and circulating air passageways of the appliance be
kept clean. Ventilating system should be inspected
and cleaned annually of all debris and spider webs.
Warning: DO NOT OPERATE APPLIANCE UNTIL PROPER INSTALLATION HAS BEEN COMPLETED.
The gas pressure check must be carried out with all other appliances on the same main operating at maximum
capacity to ensure that there is sufficient gas pressure.
With all other appliances operating the pressure at the test point on the inlet to the gas valve should read 20
mbar for Natural Gas. For LPG (Propane) the pressure should be 37 mbar. If the pressure is lower, the gas
supply is inadequate and the water heater will not operate to specification. Check gas meter, regulator and
pipework for correct operation/sizing and rectify as required. Note that the gas regulator on the Infinity is
electronically controlled and factory pre-set. Under normal circumstances it does not need adjustment during
installation.