Rinnai Circ-Logic RU80e, Руководство по обслуживанию

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Condensing Water Heater Service Manual 52
100000354
KB Series Gas Pressure Setting Procedure
Complete this section if gas valve has been changed, for high altitude installation , or after converting gas type.
Confirm that the inlet gas pressure is between the minimum and maximum pressures allowed for this appliance.
1.Turn OFF the gas supply.
2.Turn OFF the power supply.
3.Remove the front panel (four screws).
4.Check the gas type using the data plate on the side of
the unit. Confirm that the gas type switch is in the
correct position (switch 1 of SW2 is ON for natural
gas, NG, and OFF for propane gas, LPG.) Figure 4.
5.Remove the screw and attach the manometer to the
burner test point located on the gas control.
Figure 5.
6.Turn on the gas supply and the power supply.
7.Flow water through the water heater at the maximum
flow rate obtainable. (At least 3
-
4 gallons per
minute is recommended. If there is not enough
water flowing, the water heater could shut off or
sustain damage due to overheating.)
8.Move switch 8 of SW1 to ON. Figure 4.
9.Push the PC board switch A for one second, red light
will be solid.
10.Calibrate “Forced Low” (Min Rate) combustion using
switch A to increase pressure and switch B to
decrease pressure. Use the Gas Pressure Settings
on page 54, gas type, and altitude.
11.Move switch 8 of SW1 to OFF and then back to ON.
12.Push the PC board switch B for one second, red light
will be flashing.
CAUTION
Do not touch the areas at or near the heat exchanger
or hot water lines. These areas become very hot and
could cause burns.
CAUTION
Do not touch any other areas on the PC board
besides the “SW” switches while power is supplied to
the appliance. Parts of the PC board are supplied
with 120 volts AC.
Burner test point
Figure 4
Figure 5
#8 for forced low and
high
#1 ON for natural gas;
OFF for propane gas