Rinnai RHFE-308FTR How To Use Manual page 29

Purge air and swarf from gas line. Connect gas. Connection
can easily be reached from the right hand side rear of the
appliance.
Remove bottom trim (pulls off). Remove louvres and front
panel. (7 screws)
PRESSURE CHECKING PROCEDURE:
Caution-240 V inside appliance.
1. Check that SW6 (Dip switches) are correct for the gas
type for which the appliance is to be used. (Refer to
diagram opposite).
2. There are two test points, one on the heat exchanger,
one on the gas manifold. Connect a pressure gauge
between both test points. (Connect one side of the
gauge to one point, the other side of the gauge to the
other). If you are using an electronic manometer,
connect the 8 side to the heat exchanger test point.
3. Press the ON/OFF button to operate the appliance.
4. With the appliance operating, press SW5 once.
5. Press SW4 to operate the appliance on forced low.
6. Check the pressure against the low pressure shown on
the data plate. (Right hand side panel)
7. Press SW4 again.
8. Press SW3 to operate the appliance on forced high.
9. Check the pressure against the high pressure shown
on the data plate.
10. Press SW3 again.
11. Press SW5 again to return the heater to normal
operation.
12. Turn the heater OFF, remove the pressure gauge, and
replace the test point screws.
13. Reassemble appliance, set the clock, (See page
13) and check aooliance operation.
THE REGULATOR HAS BEEN FACTORY PRE-SET. IF
THE PRESSURE IS INCORRECT, CHECK THE SUPPLY
PRESSURE FIRST, BEFORE MAKING ANY ADJUSTMENT
TO THE APPLIANCE.
IF THE PRESSURE NEEDS RE-SETTING FOLLOW THE
INSTRUCTIONS BELOW.
1. Follow checking procedure 1-6, reset the low pressure
by using the "A" or "V" buttons on the control
panel.
2. Press SW4 again to lock in the selected setting.
3. Follow checking procedure 8 and 9, reset the high
pressure by using the "A" or "v" buttons on the
control panel.
'4. Press SW3 again to lock in the selected setting.
5. Press SW5 to return the heater to normal operation.
6. Turn the heater OFF, remove the pressure gauge, and
replace the test point screws.
7. Reassemble appliance, set the clock (See page
13) and check appliance oqeration.
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