Installation Guide

Part number 550-100-066/0608
87
g a s -f i r e d w at e r b o i l e r — Boiler Manual
Troubleshooting (continued)
Ultra wire harness details (  = factory jumper)
Pins Function Wire ID / Color Pin — In Pin — Out Wire ID / Color Pin — In Pin — Out
Upper High Voltage Harness Lower High Voltage Harness
Wire ID / Color Pin - In Pin - Out Wire ID / Color Pin - In Pin - Out
P1: Pin 1
Power (120VAC): Hot 2 to 1 to 7 / Black 1 4 - Male Flange Connector 3 / Black 4 - Female Flange Connector 1 - Receptacle Hot
P1: Pin 2
Power (120VAC): Neutral 3 to 6 / White 2 5 - Male Flange Connector 2 / White 5 - Female Flange Connector 2 - Receptacle Neutral
P1: Pin 3
Power (120VAC): Earth Ground 4 to 5 / Green 3 6 - Male Flange Connector 1 / Green 6 - Female Flange Connector 3 - Receptacle Ground
P2: Pin 1
Circulator 1 Hot
P2: Pin 2
Circulator 2 Hot
P2: Pin 3
Circulator 3 Hot
P2: Pin 4
Circulator 1 Neutral
P2: Pin 5
Circulator 2 Neutral
P2: Pin 6
Circulator 3 Neutral
P2: Pin 7
Circulator 1 Ground
P2: Pin 8
Circulator 2 Ground
P2: Pin 9
Circulator 3 Ground
P3: Pin 1
Transformer: 120VAC Hot / Black 1 Transformer 120VAC Hot
Not part of harness — directly terminated to transformer
P3: Pin 2
—
P3: Pin 3
Transformer: 120VAC Neutral / White 3 Transformer 120VAC Neutral
P3: Pin 4
—
P3: Pin 5
—
P3: Pin 6
Transformer: 24VAC Common / Blue 6 Transformer 24VAC Common
P3: Pin 7
Transformer: 24VAC Hot / Yellow 7 Transformer 24VAC Hot
P4: Pin 1
Blower Power: Hot 8 / Black 1 3 - Male Flange Connector 4 / Black 3 - Female Flange Connector 2 - Blower Hot
P4: Pin 2
Blower Power: Neutral 9 / White 2 2 - Male Flange Connector 5 / White 2 - Female Flange Connector 1 - Blower Neutral
P4: Pin 3
Blower Power: Ground 10 / Green 3 1 - Male Flange Connector 6 / Green 1 - Female Flange Connector 3 - Blower Ground
Upper Low Voltage Harness Lower Low Voltage Harness
Wire ID / Color Pin - In Pin - Out Wire ID / Color Pin - In Pin - Out
P5: Pin 1
Blower: V+ 12 / White 1 13 - Male Flange Connector 12 / White 13 - Female Flange Connector 1 - Blower V+
P5: Pin 2
Blower: RPM 13 / Red 2 12 - Male Flange Connector 13 / Red 12 - Female Flange Connector 2 - Hall Sensor Out
P5: Pin 3
Blower: PWM 14 / Black 3 11 - Male Flange Connector 14 / Black 11 - Female Flange Connector 4 - PWM Input
P5: Pin 4
Blower: V- 15 / Blue 4 10 - Male Flange Connector 15 / Blue 10 - Female Flange Connector 5 - Blower V-
P6: Pin 1
Gas Valve: (+) 10 / Blue 1 15 - Male Flange Connector 10 / Blue 15 - Female Flange Connector 1 - Gas Valve
P6: Pin 2
Gas Valve: (-) 11 / Blue 2 14 - Male Flange Connector 11 / Blue 14 - Female Flange Connector 5 - Gas Valve
P7: Pin 1
Hx Inlet (+) 1 7 / Red 1 2 - Male Flange Connector 7 / Red 2 - Female Flange Connector 1 - Hx Inlet (+)
P7: Pin 2
Hx Inlet Com 8 / Red 2 1 - Male Flange Connector 9 / Red 1 - Female Flange Connector 3 & 4 - Hx Inlet Com
P7: Pin 3
Hx Inlet (+) 2 9 / Red 3 9 - Male Flange Connector 8 / Red 9 - Female Flange Connector 2 - Hx Inlet (+)
P7: Pin 4
Pres Switch
Red
4 5 - Wire Jumped
P7: Pin 5
Pres Switch 5 4 - Wire Jumped
P8: Pin 1
Flue (+) 1 1 / Yellow 1 8 - Male Flange Connector 1 / Yellow 8 - Female Flange Connector 1 - Flue (+)
P8: Pin 2
Flue Com 2 / Yellow 2 7 - Male Flange Connector 3 / Yellow 7 - Female Flange Connector 3 & 4 - Flue Com
P8: Pin 3
Flue (+) 2 3 / Yellow 3 6 - Male Flange Connector 2 / Yellow 6 - Female Flange Connector 2 - Flue (+)
P8: Pin 4
Hx Outlet 1 (+) 4 / Red 4 5 - Male Flange Connector 4 / Red 5 - Female Flange Connector 1 - Outlet (+)
P8: Pin 5
Hx Outlet Common 5 / Red 5 4 - Male Flange Connector 6 / Red 4 - Female Flange Connector 3 & 4 - Hx Outlet Com
P8: Pin 6
Hx Outlet 2 (+) 6 / Red 6 3 - Male Flange Connector 5 / Red 3 - Female Flange Connector 2 - Outlet (+)
P8: Pin 7
Hx Safety 1 (+)
P8: Pin 8
Hx Safety Common
P8: Pin 9
Hx Safety 2 (+)