Wiring Diagrams; Terminal Block Assignments - High Voltage Circuit (Tb2) - Patterson-Kelley MACH Series Installation & Owner's Manual

MACH® Series Gas-Fired Boiler
6.1 W D
IRING IAGRAMS
6.1.1 Terminal Block Assignments – High Voltage Circuit (TB2)
Terminal Number
1 115 VAC LINE
2 115 VAC NEUTRAL
3 115 VAC NEUTRAL
4 115 VAC NEUTRAL
5 115 VAC NEUTRAL
6 GROUND
7 GROUND
8 GROUND
9 115 VAC SW. OUTPUT
10 115 VAC CIRC. PMP
CONTACTOR
11 115 VAC DHW PMP
CONTACTOR
12 MASTER ALARM RELAY
13 MASTER ALARM RELAY
14 THREE WAY VALVE RELAY
15 THREE WAY VALVE RELAY
16 DAMPER RELAY
17 DAMPER RELAY
Label
Boiler Supply Power, 115 VAC, 60 HZ, 1 ph, 8 amp
Aux. Switched Output
Boiler Circ. Pump
DHW Circ. Pump
Boiler Supply Ground
Aux .Ground
Aux. Switched Output, Pilot duty only, 1 amp max.
Boiler Circ. Pump, Pilot duty only, 1 amp max.
DHW Circ. Pump, Pilot Duty only, 1 amp max.
Dry Contacts, 24 VAC max, 1 amp max.
DHW Dry Contacts, 24 VAC max, 1 amp max.
Combustion Air Damper, Dry Contacts, 24 VAC max, 1 amp
max.
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