Conventional - EWC Controls EWT-3102 User Manual

OUTDOOR/INDOOR
TEMPERATURE
1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2. FACTORY INSTALLED JUMPER.
3. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE
SEPARATE FROM THE THERMOSTAT CABLE.
Fig. 13. Typical hookup of heat only power to open and power to close zone valve
EWT-3102 / EWT-3103 Touchscreen Programmable Thermostat
R C 1
3
TR SERIES 20
TR
MOTOR OR
VALVE
R B W
SENSOR
2
S1 S2 C R RC W W2
(Series 20) system.

CONVENTIONAL

Y2 Y G
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