UTICA BOILERS SFE0365 Installation, Operation And Maintenance Manual page 10

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