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The TH114 Series delivers the features that matter most in a non-programmable thermostat: an easy-to-read backlit display, slim contemporary design and precise temperature control.


  • Three choices of temperature control in a single thermostat (Ambient, Floor, or Ambient with Floor temperature limits)
  • 5 mA ground fault circuit interrupter (GFCI) on GA models
  • 15 mA equipment ground fault protection devices (EGFPD) on GB models
  • GFCI and EGFPD test light verifies safety control is functioning properly and alerts if a leak is detected
  • Advanced temperature control ensures total comfort by minimizing temperature swings
  • ON/STANDBY switch enables thermostat shutdown at the end of heating season for added security
  • On-screen heating power indicator gives at-a-glance verification of power being used
  • Backlit display
  • Battery-free

Product Specifications

Radiant floor; Baseboard heater; Radiant ceiling; Convector or Fan-forced Heater; Electric Heating
Dimensions (in.)
4.89 in. X 2.76 in. X 0.91 in.
Dimensions (mm)
124 mm X 70 mm X 23 mm
15-ft floor sensor
Used With
Aube RC840/RC840T Series Electromechanical Relays
Backlight; On/Standby switch; Remote input for telephone controller (Unoccupied input); Min. and max. floor temperature limits in AF mode; 15-minute cycles
Electrical Ratings
0.5 A / 24 VAC
Approvals, Canadian Standards Association
Approved; Compliant to CAN/CSA-C828-06
Customer Special
Electrical Connections
6 in. (150 mm) tinned copper lead wires
Supply Voltage
0.5 A, 24 VAC
Switch Positions (System)
°C/°F; AF/F
Operating Temperature Range (F)
32 F to 122 F
Operating Temperature Range (C)
0 C to 50 C
Power Method
Sensor Element
Accuracy (F)
± 0.9 F
Accuracy (C)
± 0.5 C
Differential Temperature (F)
1 F
Differential Temperature (C)
0.5 C
Ambient Temperature Range (F)
AF mode: 32 F to 122 F; F mode: 32 F to 140 F
Ambient Temperature Range (C)
AF mode: 0 C to 50 C; F mode: 0 C to 60 C
Switch Type
External electromechanical relay
Terminal Designations
R, C, W
Temperature Control Mode Selections
AF for Ambient & Floor; "F" for Floor
Setting Temperature Range (F)
AF mode: 40 F to 86 F; F mode: 40 F to 104 F
Setting Temperature Range (C)
AF mode: 5 C to 30 C; F mode: 5 C to 40 C
Cycles per Hour
Parts Needed for Operation (not included)
Aube RC840/RC840T Series Electromechanical relays
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