Electrical Wiring Diagrams - Cambridge Engineering S Series Technical Manual

REFERENCE

ELECTRICAL WIRING DIAGRAMS

Symbol Description
AF Air Flow Switch
AMP Amplifier Solid State
AX1 Auxiliary Contact
AX Auxiliary Contact
CR1 Control Relay
D & D1 Damper Motor & End Switch
DISC Service Disconnect Non - Fused
DTS Discharge Temperature Sensor
EAT Entering Air Thermostat
FR Flame Rod
FSR Flame Safeguard Relay
S-Series Technical Manual
Symbol Description
FU1 Fuse 24 Volt Control
FU2 Fuse 120 Volt Control
HL High Limit
IG Igniter
L1 Light - Alarm
L2 Light - Fan
L3 Light - Heat
LTC Low Temperature Cutout
M Motor
MS Motor Starter
MV Modulating Valve
57
400,000 BTU & BELOW
EDL Controls
Symbol Description
OL Overload Relay
PCB Printed Circuit Board
RTS Remote Temperature Sensor
R1 Relay - Gas Valve
SOV Shut-Off Valve - Gas
SW1 Service Switch - Fan
SW2 Service Switch - Heat
SW3 Switch - Fan/Off/Heat
T1 Multi-Tap Transformer (24 & 120 Volt)
T2 Class 2 Transformer (24 Volt)
TS Temperature Sensor - LTC/EAT
Cambridge Engineering, Inc.