Conventional - EWC Controls EWT-3102 User Manual

2
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
S1 S2 C R RC
1.POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2.OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE
SEPARATE FROM THE THERMOSTAT CABLE.
Fig. 10. Typical hookup of conventional single-stage heat and cool system with two
EWT-3102 / EWT-3103 Touchscreen Programmable Thermostat
C
R
1
COMPRESSOR
CONTACTOR
HEAT RELAY
W W2 Y2 Y G
transformers (1H/1C conventional).
OPTIONAL
C 1
R 24VAC
COMMON
CONNECTION
FAN RELAY

CONVENTIONAL

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