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STEAM WIRING W/BECKETT BURNER
TH-1
Thermostat (Millivolt)
TH-2
Thermostat (24 Volt)
TH-3
Thermostat (Line Voltage)
TR-1
Transformer (120V/24V/40VA)
TR-2
Transformer (120V/24V/50VA)
LGV24
Volt Gas Valve
PS
Pressure Switch
WIRING CODE
Line Voltage By Factory
Low Voltage By Factory
Line Voltage By Installer
Low Voltage By Installer
ELECTRICAL WIRING
COMPONENT CODING
MR-PS
Manual Reset Pressure Switch
Control Terminal
1K
Relay Coil
1K1
Relay Contacts
1K2
Relay Contacts
LS
Limit Switch
MS
Manual Switch
NOTE: Not all components listed are used in all control systems.
15
CIR
Circulator
ECO
Energy Cut-Off
PSC
Pilot Safety Coil
Wire Connection
LWCO
Low Water Cut Off
EWF
Electric Water Feeder
PG
Power Generator
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