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EWT-3102 / EWT-3103 Touchscreen Programmable Thermostat
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. 14. Typical hookup of heat only system with normally open zone valves.
27
CONVENTIONAL
S1 S2 C R RC W W2 Y2 Y G
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
3
NORMALLY OPEN
ZONE VALVE
OPTIONAL
24VAC
COMMON
CONNECTION
R
C
1
2
4