Skip Ribbon Commands
Skip to main content
Item 2 Of 5
Electronic Temperature Controller- special boiler,3 Temp Input, 3 sensors included, 1 Digital output


Electronic Temperature Controller- special boiler,3 Temp Input, 3 sensors included, 1 Digital output

  • Product Info
  • Literature
  • Accessories & Replacement Parts


T775 electronic remote temperature controller, is the next generation in commercial/agricultural control - capable of remote sensing temperature, humidity, pressure, etc., and providing switched and/or proportional outputs to various types of loads.


  • Universal model (T775U) can control pressure, humidity, or any variable analog input.
  • Special boiler model (T775P) for boiler control.
  • Special Staged Sequencing Model (T775L) for sequence staging of relays with one or two setpoints.
  • Special Expansion Model (T775S) for staging up to 12 relays with two setpoints (each T775S provides 4 relays).
  • Save time on installations with the easy-to-use graphical Interface, large display, and the intuitive programming.
  • Use the time clock scheduler or digital input to control the setback and disable output options to help save energy.
  • Provide very fast or very fast response times on modulating outputs by adjusting the integral and derivative times (PI or PID).
  • Configure models with reset in a few easy steps.
  • Eliminate the need for a separate time delay device and protect equipment with the minimum off time option.
  • Use the T775L and T775P to stage up to 12 relays (with optional T775S) from two independent heat or cool setpoints.
  • Support for digital output alarm on the T775P configurable based on minimum, maximum, or differential temperature.

Product Specifications

Staging controller for applications where electronic accuracy and remote sensing of temperature is required.
Dimensions (in.)
8 5/32 in. high x 4 13/32 in. wide x 2 15/16 in. deep
Dimensions (mm)
207.1 mm high x 112.1 mm wide x 74 mm deep
Item Type
50 Hz; 60 Hz
Approvals, Underwriters Laboratories Inc.
24 Vac or 120/240 Vac
Setpoint Temperature Range (C)
-40 C to 120 C
Setpoint Temperature Range (F)
-40 F to 248 F
Operating Temperature Range (F)
Ambient-- -40 F to 140 F @ 60 Hz; -40 F to 125 F @ 50 Hz
Operating Temperature Range (C)
Ambient-- -40 C to 52 C @ 50 Hz; -40 C to 60 C @ 60 Hz
Approvals, CE
Approvals, Canadian Underwriters Laboratories Inc.
relay w/ RESET
Analog Output
Electronic Series 90; 4-20 mA; 0-10 Vdc; 2-10 Vdc
Relay Outputs
Digital Output Alarm Ratings
AC-- 30 Vac RMS; 1.5 A steady 3A inrush P.F. 0.45 N.C.; 20 Vac RMS; 100 mA minimum load on N.O. and N.C. contacts, DC-- 1 mA at 100 mV DC minimum load
Relay Contact Ratings
24 Vac-- 10.0A resistive; 120 Vac-- 1/2 hp; 9.8 AFL, 58.8 ALR, 125 VA Pilot Duty; 240 Vac-- 1/2 hp; 4.9 AFL, 29.4 ALR, 125 VA Pilot Duty
Sensor Inputs
Sensor Element
1097 ohms PTC at 77 F (25 C)
Sensors Included
50021579-001 (3)
Maximum distance to sensor (ft)
Up to 1,000 ft
Maximum distance to sensor (m)
up to 304 m
Bulb Size (in.)
1/4 in. diameter x 2 in. long
Bulb Size (mm)
6.35 mm diameter x 50.8 mm
Accuracy (F)
±1 F at 77 F
Accuracy (C)
±1 C at 25 C
Throttling Range (F)
1 F to 150 F
Throttling Range (C)
0.5 C to 66 C
Differential Temperature (F)
1 F to 150 F
Differential Temperature (C)
0.5 C to 66 C
Add 1 or 2 T775Ss (4 relays ea)
Stages Loop Control
Approvals, C-Tick



Capillary Holder Assembly - duct insertion


Heat Conductive Compound, 4 ounces


5 inch Stainless Steel Immersion Well for C7021D2001, C7023D2001 and C7041D2001 Temperature Sensors

May we also suggest

1097 ohm Standard Temperature Sensor


PT1000 Standard Temperature Probe, -40-350F, use with T775

1097 ohm Outdoor Air Temperature Sensor


PT1000 Outdoor Air Temperature Sensor, use with T775 controller

1097 ohm Water-resistant Temp Sensor


PT1000 Water-resistant Temperature Sensor, use with T775 controller

1097 ohm Water-tight Temperature Sensor


PT1000 Water-tight Temperature Sensor, use with T775 controller

immersion sensor with well, 5 inch


PT1000 Immersion TempSensor,5 in.immersion, use w/ T775, Oerating range -40-350F

1097 ohm Electronic Temperature Sensor


PT1000 Electronic Duct Temperature Sensor, 12ft, Use with XL500

1097 ohm Elec. Temp Sensor,8 in. insert.


PT1000 Discharge Temperature Sensor,8 in., 40-150F

12 inch Duct  Averaging Temp Sensor


PT1000 Duct Averaging Temperature Sensor,13 in., 40-150F

Wall mount Room Sensor


Wall mount Room Sensor, for use with EXCEL 500