Specifications
TC1 & TC2 Milli-volt Readings
1. Set voltage meter to read at least 35 milli-volts. Insert meter leads into the output test port holes on the
rear of the unit, see below for proper test ports for each thermocouple.
2. Fire the unit up and check the milli-volt output on each thermocouple per readings listed above. Readings
below those listed above will cause the unit to code out. Verify inlet/manifold high/low fire gas pressures
if your readings are not within the specifications as listed above.
Procedure for measuring TC1 & TC2 Thermocouple Outputs
FC510 (RCE-391A) Thermocouple Output
FC824 (RCE-691TA) Thermocouple Output
TC1 (mV) Brown & White
Wires
TC2 (mV) Black & White
Wires
TC1 (mV) Brown & White
Wires
TC2 (mV) Black & White
Wires
Gas Type High Fire Low Fire High Fire Low Fire
High Fire Low Fire High Fire Low Fire
Propane Gas
23 - 26 16 - 20 23 - 31 16 - 24
23 - 26 16 - 20 23 - 31 16 - 24
Natural Gas
26 - 29 17 - 21 18 - 26 15 - 23
26 - 29 17 - 21 18 - 26 15 - 23
TC1 test ports - Top is the brown
& bottom right is white wire.
TC2 test ports - Bottom left is the
black & bottom right is white wire.
TC1
TC2