Rinnai ES38 RHFE-1004RFA Conversion Manual page 5

Adjust Gas Pressure Settings
memory. Press the SW1 switch twice.
10. The LED will display "PH" indicating high fire
mode.
11. Compare the pressure reading on the manometer
to the correct table for your gas type. If necessary
adjust the high fire pressure using the ▲ and ▼
buttons. Press the Economy switch to record into
memory.
12. The LED will display two digits - a "7" and another
number. If the LED shows any thing else call
Rinnai Technical Support at 1-800-621-9419 for
assistance.
13. Press the ON/OFF button again. The LED display
turns blank and the appliance returns to the
normal OFF mode.
14. Remove manometer and install Allen head screw.
Operate the unit and
•
check the normal operating sequence
•
visually inspect the flame
•
check for gas leaks at the test points
NOTE: If the LED display shows "HF" or "LF" do not
touch the ▲ and ▼ buttons or Economy button. In
this case push SW1.
Normal Operating Sequence
When you press the ON/OFF button, the LED display
will illuminate, the combustion fan will begin to run,
and the spark will ignite the main burner.
This heater has an automatic ignition system. When
the main burner has lit, the combustion lamp will glow
red, and the spark will stop.
Visual Inspection of Flame
Check that the burner flames are operating normally.
The flame can be seen through the circular window
through the louvers.
When operating normally the burner flame should
appear as long, clear, blue, stable, streaks. Yellow
flames or an orange color is abnormal and
maintenance is required.
Final Assembly
1. Install the front panel and bottom cover.
2. Place the conversion plate (label) on the front
cover.
Rinnai Corporation ES38 Conversion Manual
NOTICE
The regulator has been factory pre-set. If the
pressure is incorrect, check the supply pressure first,
before making any adjustments to the appliance.
Also, if the low control pressure cannot be obtained,
adjust the adjustment screw on the proportional valve
to roughly set pressure and then recheck both the low
and high fire pressures.
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