Rinnai Energysaver ES38P, Owner'S Operation And Installation Manual, Page: 29 / 80

Rinnai Corporation ES38 Manual 29
Adjust Gas Pressure Settings
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.
Visual Inspection of Flame
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.
5. Press the SW1 switch to enter the gas code into
memory.
6. Press the ON/OFF button to operate the
appliance.
7. Press the SW1 switch. The LED will display two
digits - a “7” and another number.
8. Press the SW1 switch again to change to the low
pressure mode. The LED will display “PL”.
9. Compare the pressure reading on the manometer
to the correct table for your gas type. If necessary
adjust the low fire pressure using the
▲ and ▼
buttons. Press the Economy switch to record into
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
NOTE: If the LED display shows “HF” or “LF” do not
touch the ▲ and ▼ buttons or Economy button. In
this case push SW1.
•
check the normal operating sequence
•
visually inspect the flame
•
check for gas leaks at the test points
1. Install the front panel and bottom cover.
2. Place the conversion plate (label) on the front
cover.
Final Assembly
The LED display turns blank and the unit returns
to the normal off mode. You are now ready to
program in your correct low fire and high fire gas
pressure setting. Follow the procedure below for
setting the manifold gas pressure. Do not adjust
gas pressure on this appliance using the screw
on top of the gas valve.