Commercial Building Controls : Building Management Systems : Controllers (Legacy) : W7100A,C : W7100C1018/U
20 to 30 Vac Discharge air temp. cntrl.
Overview
Maintain an average discharge air temperature in variable air volume systems. Reduce kilowatt demand & consumption by maintaining the minimum amount of heating or cooling capacity required to hold the discharge air set point.
Features
- W7100 Controller maintains an average discharge air temperature in variable air volume (VAV) cooling systems by modulating an economizer and sequencing stages of mechanical cooling.
- The W7100 can be applied to electric makeup air and other systems requiring discharge air control of multistage heating or cooling.
- Staging capacity of the W7100A,C can be extended six stages using a W7101A Satellite Sequencer.
- When power is interrupted, the system cycles to all stages off.
- When power is restored, the economizer will first be modulated open (if enthalpy is suitable), then stages of mechanical cooling will be sequenced on.
- If enthalpy is not suitable for economizer operation, the first stage of cooling or heating is energized within five minutes.
- Reset signal from either space sensor or outdoor air sensor.
Product Specifications
- Application
- Discharge Air
- Dimensions (in.)
- 8 5/8 in. high x 6 1/2 in. wide x 3 in. deep
- Dimensions (mm)
- 219 mm high x 161 mm wide x 76 mm deep
- Comments
- Additional stages of heating and cooling can be achieved by adding a W7101 Satellite Sequencer
- Frequency
- 50 Hz; 60 Hz
- Electrical Connections
- 1/4 in. quick-connect male terminals
- Application Size
- 2 Heat / 4 Cool
- Control System
- W7100 family
- Output Type
- Staged On/Off
- Contact Ratings
- NO 750 VA inrush @ 120/240 Vac, 75 VA running @ 120/240 Vac; NC 240 VA inrush @ 40 Vac, 30 VA running @ 24 Vac; NO 240 VA inrush @ 24 Vac, 60 VA running @ 24 Vac; NC 75 VA inrush @ 24 Vac, 30 VA running @ 24 Vac
- Power Consumption
- 12 VA at 24 Vac, 50/60 Hz (max).
- Voltage
- 20 to 30 Vac
- Setpoint Temperature Range (C)
- 4 C to 32 C
- Setpoint Temperature Range (F)
- 40 F to 90 F
- Operating Temperature Range (F)
- 40 F to 90 F
- Operating Temperature Range (C)
- 4 C to 32 C
- Shipping and Storage Temperature Range (F)
- -40 F to +150 F
- Shipping and Storage Temperature Range (C)
- -40 C to +65 C
