Rinnai Energysaver RHFE-1004FTA, Руководство по обслуживанию

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Rinnai Direct Vent Service Manual 29
RHFE-431WTA
RHFE-556WTA
Troubleshooting
(TR) Transformer:
Read Voltage across:
(SP) Sparker Board:
Set your voltage meter on the 400k scale, unplug the (5) pin connector on the sparker board. When reading
across the two lugs the blue and red wire connect to, you should read somewhere between l00k and 120k ohms
of resistance. When checking the spark sensing circuit, check across the orange wire (pin #35) and gray wire (pin
#32) on your 40 VDC scale. You should read between 4 - 5 VDC. During the spark this voltage will drop to
approximately 0 VDC. Once unit ignites the voltage will go back up to 4 - 5 VDC.
WIRE COLOR VOLTAGE
RESISTANCE
READING
PIN
NUMBERS
White - White 98 - 105 VAC 6 - 19 ohms
21 - 27
Red - Red 28 - 50 VAC 1 - 3 ohms
30 - 31
Black - Blue 10 - 15 VAC 0.5 - 2.5 ohms
22 - 23
Blue - Yellow 130 - 185 VAC 200 - 400 ohms
23 - 32
Grey - Grey 110 - 120 VAC 10 - 14 ohms
17 - 18
Purple - Purple 4.5 - 5.5 VAC
1 - 2 ohms
24 - 25
Black - Yellow 165 - 185 VAC 200 - 212 ohms 22 - 32
Brown - Purple 2.2 - 2.8 VAC 0.7 - 1.2 ohms 24 - 28
Blue - Red 85 - 110 VAC see below 33 - 36
WIRE COLOR VOLTAGE
RESISTANCE
READING
PIN
NUMBERS
WARNING
There are a number of live tests that are required when fault finding this product. Extreme care should be used at
all times to avoid contact with energized components inside the furnace.
You MUST be a qualified service person before proceeding with these test instructions.
Before checking resistance readings, turn off power source to unit and then isolate each item to be checked from
the circuit by unplugging it.
When setting gas pressures on one of these units, please check the complete model number you are trouble-
shooting. Gas pressures and dip switches can vary among models. Always check the rating plate for complete
information and follow directions.