Model ZTWD
Programmable Thermostat with Integrated Equipment
and 2-Zone Control for Residential New Construction
Meets the builder's requirement for a comfortable home at about HALF the cost of traditional zoning in 2-story, 2 and 3-story townhomes and condos and single story homes.
Cuts Installation Time in Half
Automatic or Manual Comfort Control
Automatically controls the distribution of heating or cooling to provide a uniformly comfortable home in every season. Or, the homeowner can manually direct more heating or cooling to the desired zone.
Automatic Night Comfort Option
Saves 30% in energy at night and improves comfort by automatically distributing more heating or cooling to the upstairs zone and 30% less to the unoccupied downstairs zone and uses the upstairs sensor to control the heating and cooling calls.
Eliminates Installing Bypass and Bypass Damper
Eliminates Installing DAT Sensor
Eliminates Installing Separate 24VAC Transformer and Electrical Box
Fewer Wires to Connect
Reduces HERS Testing.
About Half the Material Cost of Traditional Zoning.
Available through Distribution
Questions? Contact us by email - Sales@eControlsUSA.com
or give us a call - 949-916-6701
ZTWD Wiring Diagram for New Construction
Typical Installation
A typical installation includes two R80CT-XX Modulating 3-Wire Dampers installed in the trunks feeding the upstairs and downstairs zones.
The TS510W Wired Temperature Sensor is installed in the upstairs zone and wires to the ZTWD Thermostat. Optionally, two TS520W wired sensors can be installed in the upstairs zone and the temperatures are averaged. One sensor wires to the ZTWD Thermostat and the second sensor wires to the first sensor.
The ZTWD 2-Zone Programmable Thermostat is installed in the downstairs zone and is wired to the equipment terminals R, C, W/OB, Y and G for 24VAC power and equipment control. The upstairs and downstairs damper wire to the ZTWD Thermostat, each using a 3-wire connection.
How it Works
The ZTWD monitors the downstairs temperature at its location and the upstairs temperature at the sensor during heating and cooling calls.
If the upstairs and downstairs temperatures differ by 2 degrees or more, the ZTWD automatically distributes more heating or cooling to the zone that needs it every 2 minutes.
To distribute more heating or cooling upstairs, the upstairs damper fully opens and the downstairs damper partially closes, forcing more heating or cooling to the upstairs zone. To distribute more heating or cooling downstairs, the downstairs damper fully opens and the upstairs damper partially closes, forcing more heating or cooling to the downstairs zone.
The ZTWD system dynamically adjusts the dampers to find the right distribution of heating and cooling to provide a uniformly comfortable home and save energy in every season.