- Combines solid state changeover control, minimum damper position potentiometer and compressor staging relays.
- Use one sensor in outdoor air for single sensor control; use two sensors, one in return air and one in outdoor air, for differential control.
- Economizer for Modutrol Motors
- Output: Series 90
- Voltage: 24 Vac
- Frequency: 50, 60 Hz
- Contact Ratings: 1 A @ 24 Vac
- Dimensions: 5 13/16 in. high x 4 1/8 in. wide x 3 11/32 in. deep
- Comments: throttling range: 10 F (6 C) Requires 203977A bracket for mounting on Modutrol IV motor. 135 ohm mixed air temperature controller
- Used with: M91XX Modutrol IV motor