Remote bulb thermostats regulate temperature of air or liquids in ducts, pipes, tanks and boilers.
Features:
- Suitable for applications requiring temperature control of air or liquids where controller must be placed outside the sensing area.
- Typical uses include control of dampers and valves in heating, cooling and heating-cooling systems.
- Fast response models (available for use in return air duct) operate approximately four times faster than standard models.
- Controller can be mounted in any position. Ambient temperature compensation provides good temperature control.
- Refer to T775 Electronic Remote Temperature Controller where more exact control is required and/or remote controller location is preferred.
- T678 models have a maximum connected load of 2000 VA.
Specifications:
- Hazmat Information: UN 1294, TOLUENE, 3, II
- Application: Changeover temperature control
- Dimensions: 5 5/8" high x 2" wide x 2 5/8" deep
- Dimensions (mm): 143 mm high x 51 mm wide x 67 mm deep
- Frequency: 50 Hz; 60 Hz
- Contact Ratings: 120 Vac-- Control: 2.6 AFL, 15.6 ALR; Hi Limit: 7.4 AFL, 44.4 ALR; 240 Vac-- Control: 1.3 AFL, 7.8 ALR; Hi Limit: 5.1 AFL, 30.6 ALR
- Voltage: 120 Vac; 240 Vac
- Setpoint Temperature Range (F): 50 F to 190 F
- Operating Temperature Range (F): 210 F Maximum
- Operating Temperature Range (C): 99 C Maximum
- Output: relay
- Relay Outputs: 2 SPDT switch contacts
- Sensor Inputs: 1
- Sensor Element: Copper bulb
- Capillary Length (ft): 10 ft
- Capillary Length (m): 3 m
- Bulb Size: 1/8" x 30"
- Bulb Size (mm): 3 mm x 762 mm
- Differential Temperature (F): Control: 2 F; Hi Limit: 5 F
- Differential Temperature (C): Control: 1.1 C; Hi Limit: 2.8 C
- Interstage Differential Temperature (C): 3.9 C
- Interstage Differential Temperature (F): 7 F