The ETM-3051T is a direct digital thermostat controller that provides integrated control of unitary, packaged, and staged HVAC equipment - such as rooftop units. The ETM-3051T is designed for applications that require two stages of digital heating/cooling control, a fan, and damper operations. It uses NovarNet™ protocol and is ideal for upgrading from conventional thermostats to fully distributed digital control.
Mounting
Surface-mount in a RTU control panel or optional enclosure, using four slotted screw holes.
Dimensions
Height : 5.9 inches
Width: 7.5 inches
Depth: 1.625 inches
Power Requirements
Input: 24 VAC or VDC, Class 2
Frequency: 50/60 Hz
Consumption: 10 VA
all inputs/outputs protected against lightening induced surge or voltage transients
Inputs
3 Thermistor: Type 2, 10k (50 to 90 F for zone temp, -30 to 220 F for discharge temp)
1 Analog: 4-20mA
3 Digital: contact closure only
Outputs
7 Digital: 24VAC, 1- amp max, normally open relay outputs
Communications
Method: RS-485
Application protocol: NovarNet, 1.7-9.6kBd
LED Indicators
Output
Power
Module Communications
Timed Override
Schedule Status
Operating Environment
Temperature: -40°F to 158°F (-40°C to 70°C)
Humidity: 0% to 90% RH, non-condensing
Approvals
Listed device: CUL/UL E90949
Standards used: UL 916, Energy Management Equipment CSA C22.2, No. 205-M1983, Signal Equipment
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