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Zonex MODSTAT - Auto-Changeover Zone Modulating Thermostat

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Zonex MODSTAT - Auto-Changeover Zone Modulating Thermostat

The ModStat is a microprocessor based, auto changeover, communicating zone thermostat. The ModStats control modulating medium pressure and heavy duty dampers. These communicating zone thermostats are used with the ModCom, Zonex Commander (Plus) DDC systems, and the System 2000 GEN II zoning system. ModStat thermostats communicate to the command centers or zone controller to initiate Heat or Cool calls in the system. Zone status and system operation are displayed on the large easy-to-read backlit LCD display. The ModStat thermostats are easy to configure and make manual adjustments with the function buttons located on the front cover. The ModStat can be field configured for baseboard, panel and reheat operations, including Fan Powered Boxes. NOTE: an air proving switch must be used for this application; field supplied.
  • Electrical - Supply voltage: 24 Vac
  • Power consumption: 4 VA maximum
  • Input: 24 VAC, Platinum Thermistor
  • Outputs: RO RC W2 Triacs - 24vac @ .3 amp max. W1 Relay - 24vac @ 1.0 amp maximum
  • Communication: RS485. Twisted pair or shielded twisted pair
  • Operating Temperature: 35° to 130° F (2° to 54° C)
  • Operating Humidity: 5 to 95% non-condensing
  • Storage Temperature: 0° to 150° (-18° to 66° C)
  • Dimensions: 4 ½" H x 2 7/8" W x 1" D
  • Temperature Display Range: 55° to 95° F
  • Accuracy: +/- 0.8° F
  • Memory: Non-volatile EEPROM
  • Attractive compact design
  • No batteries required
  • Neutral off-white color
  • Accurate temperature control
  • Electronic lock
  • Large display with grey backlight
  • Function buttons on front cover
  • Configurable Reheat and Auxiliary heat output
  • ModStat to control power open/close dampers


NameZonex MODSTAT - Auto-Changeover Zone Modulating Thermostat
Gemaire Item NumberMODSTAT
Manufacturer Product NumberMODSTAT
SKU - PIM Number1426278436898
ERP Number130341
Unit of MeasureEACH
Weight0.4 Pound (lb.)
Length4.5 Inches (in)
Width3.0 Inches (in)
Height1.0 Inches (in)
Hazardous MaterialNo
EPA Cert RequiredNo
Country of OriginUSA
Voltage24 VAC
Batteries IncludedNo
750mV CompatibleNo
Auto ChangeoverYes
Built In Wi-FiNo
Change/Check RemindersNo
Daylight Savings Time ReadyNo
DisplayGrey backlight LCD
Displays Outdoor TemperatureNo
Heat Pump CompatibleYes
Indoor Remote SensorNo
Programmable FanYes
Stages Cool1
Stages Heat1
Vacation ModeNo
Battery BackupNo
Accuracy+/- 0.8° F
ApplicationTemperature control
Dual Transformer CompatibleNo
Emergency Heat SwitchNo
Fan SwitchingYes
Individual Fan ControlNo
Network ZoningYes
Number of HVAC Zones2
Operating Temperature Range35°F to 130°F (1.6°C to 54.4°C)
Size4 1/2" high X 2 7/8" wide X 1" deep
Temperature Range55°F to 95°F (12.7°C to 35°C)
Terminal DesignationsRO, RC, Aux, R, C-MC, TX, RX, TX, RX
Warranty Offered2 Year
Energy Star RatedNo
UL ListedNo
UL RecognizedNo
GEM - Case Quantity