Z-2000-NS
Night Set Back Thermostat for Z-2000™ System
Jackson Systems
Z-2000-NS™
The Z-2000-NS™ programmable night stat can be used for occupied and unoccupied scheduling of the Z-2000 Comfort System™. When wired and configured properly, the Z-2000-NS™ takes the place of a separate 7-day clock, night stat and override timer. The Z-2000-NS™ 'G' fan output is used to open and close the the clock contact 'T' terminals on the Z-2000™ panel that places the system in the occupied and unoccupied mode of operation. The Z-2000-NS™ can also be used with a C7189U Indoor Remote Sensor. 24 Volt power to the thermostat is supplied by the Z-2000™ panel through dedicated clock power terminals 'R' and 'C'. The thermostat also has battery backup. The Z-2000-NS™ can be configured to provide 7-day scheduling with 2 or 4 events per day.
How It Works:
The Z-2000-NS™ does not control the HVAC equipment and only uses the 'G' fan output to put the Z-2000™ panel in either the occupied and unoccupied mode. This is accomplished by programming the thermostat so that the fan is ON during occupied mode. When the thermostat goes to the unoccupied mode, the fan circuit automatically changes to AUTO and will only energize the 'G' output when there is a call for heating or cooling.
Wiring:
Wiring the Z-2000-NS™ to the Z-2000™ panel only requires 18-3 thermostat wire. Wire the thermostat 'C' terminal to the clock power 'C' terminal on the Z-2000™ panel. Wire the 'R' terminal to the clock power 'R' terminal on the Z-2000™ panel. Install a jumper wire from the clock power 'R' terminal to one of the clock contacts 'T' terminals. Wire the thermostat 'G' terminal to the other clock contacts 'T' terminal. If an optional C7189U remote sensor is used, use separate 18-2 wire and wire the sensor to the 'S1' and 'S2' terminals on the thermostat. (Polarity does not matter) Maximum wire distance between the thermostat and sensor is 200 feet.