Remote bulb Commercial Temperature Controller, 55 F to 175 F, 20 ft. capillary, Copper bulb sensing
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Honeywell T675; T678 Controller:
Remote bulb thermostats regulate temperature of air or liquids in ducts, pipes, tanks and boilers.
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.
where controller must be placed outside the sensing.
Replaces Part Numbers:12A12A, 202-0-41-2, T675A1425, CART675A1425.
Output Type relay.
Output 1 Spdt.
Application Regulates temperature of air or liquids in ducts, pipes, tanks and boilers.
Setpoint Temperature Range (F) 55 F to 175 F.
Setpoint Temperature Range (C) 13 C to 79 C.
Voltage 240 Vac, 277 Vac.
Frequency (Hz) 50 Hz, 60 Hz.
Approvals, Underwriters Laboratories Inc. UL Listed: E4436, Vol. 4, Sec. 11, Guide XAPX.
Approvals, Canadian Standards Association CSA Listed: Report -1.
Type Remote bulb Contact Ratings (120 Vac) 8.0 AFL, 48.0 ALR.
Contact Ratings (240 Vac) 5.1 AFL, 30.6 ALR.
Contact Ratings (277 Vac) 4.2 AFL, 25.2 ALR.
Dimensions (in.) 5 5/8 in. high, 2 in. wide, 2 5/8 in deep.
Dimensions (mm) 143 mm high, 51 mm wide, 67 mm deep.
Sensor Element Copper bulb.
Number of sensors 1.
Capillary Length (ft) 20 ft.
Capillary Length (m) 6.1 m.
Bulb Size (in.) 1/2 in. X 3 9/16 in. Bulb Size (mm) 13 mm x 90 mm.
Maximum Operating Temperature (F) 200 F.
Maximum Operating Temperature (C) 93 C.
Differential Temperature (F) 3.6 F to 12 F.
Differential Temperature (C) 2 C to 6.7 C.
Voltage (Vac) 120 Vac