GAS Pressure Setting

The working gas pressure on the water heater is electronically controlled and factory set. Under normal circumstances it does not require adjustment during installation. Perform this procedure only if the unit is not operating correctly and all other possible causes for incorrect operation have been eliminated. Contact Rinnai before attempting

to alter the gas pressure. Failure to do so could void the warranty.

1.Turn 'OFF' the gas supply.

2.Turn 'OFF' 230V power supply.

3.Remove the front cover from the appliance.

4.Check gas type dip switches no.1 and no. 2 are in the correct position for the type of gas (Nat. or LPG)* you are using. See Fig. 1

off on SW
	1	-Nat. Gas
	2	-Nat. Gas
	3
	4
	5
	6
	7
	8

off on SW
	1	-LPG
	2	-LPG
	3
	4
	5
	6
	7
	8

Fig. 1

On is in the right hand position, Off is in the left hand position.

5.Attach pressure gauge to burner test point. (Fig. 2)

6.Turn 'ON' the gas supply.

7.Turn 'ON' 230V power supply.

8.If remote controllers are fitted, turn the unit 'ON' at the controller and select a maximum delivery temperature.

9.Open a hot water tap fully. (CAUTION: Ensure building occupants do not have access to hot water outlets during this procedure.) Wait for the unit to light.

10.Set the Rinnai Infinity to 'Forced Low' combustion by setting No. 7 dipswitch to 'ON'. (Fig. 3)

Fig. 2

off on SW 1 2 3 4 5 6

7 8

Fig. 3

* Note:

Simply changing the position of the dip switches will not convert the unit from one gas type to the other. The conversion procedure requires a change of injector manifold. Contact Rinnai or your supplier.