A.O. Smith BTX-100 Service Handbook page 38

ULTRA HIGH EFFICIENCY POWER VENT/POWER DIRECT VENT - SERVICE MANUAL
CCB (CONT)
J1 Socket - Transformer
PIN #
1
2
3
4
5
J2 Socket - 120 VAC To Blower
PIN #
1
2
3
4
J3 Socket - 120 VAC Power Supply
PIN #
1
2
3
J4 Flame Sensor - Male Spade Connector
J5 Socket - Igniter 120 VAC HSI (hot surface igniter - Silicon Carbide)
PIN #
1
2
J6 Socket - Gas Valve, Pressure Switches, Enable/Disable Circuit
PIN #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Technical Literature Department
120 VAC hot to transformer
Not used
120 VAC neutral to transformer
24 VAC out from transformer
24 VAC out from transformer
120 VAC hot to blower
120 VAC neutral to blower
Not used
Not used
120 VAC hot
Earth Ground
120 VAC neutral
120 VAC hot
120 VAC neutral
Not used
Gas valve - 24 VAC
Not used
Blocked Intake air pressure switch
Blocked Exhaust air pressure switch
Blower Prover air pressure switch
Blower Prover air pressure switch
Enable/disable external control circuit - jumper installed from factory
Not used
Blocked Exhaust air pressure switch
Enable/disable external control circuit - jumper installed from factory
Not used
Not used
Blocked Intake air pressure switch
Gas valve - 24 VAC
Servicing should only be performed by a Qualified Service Agent
DESCRIPTION
DESCRIPTION
DESCRIPTION
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DESCRIPTION
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