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Environmental & Combustion Controls
Temperature Controllers

Compare Select and Compare the Product Models below.  Limited to five.  Some groupings may not be comparable.
  
T775 2000 Series
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T775L,P,S,U 2000 Series
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T7079
Solid State Remote Temperature Controller
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T4031
Aquastat Controller, SPDT or breaks on temperature rise, remote sensing
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T4054
Industrial Line Voltage Thermostat for heating with SPST switching actuated by a hydraulic temperature sensing element. Maximum ambient temperature is 125 F with a fixed differential of 2.5 degrees F.
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T631A,B,C
Farm Controller, SPDT, line voltage, for heating, cooling, ventilating
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T631F,G
Two Stage, NEMA 4X Controllers provide line voltage control of heating, cooling, and ventilating systems in farm buildings and industrial environments.
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T675A,B
Controller, SPDT, remote bulb thermostat, liquid or air
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T675F
Controller, SPDT, remote bulb thermostat, liquid or air
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T678
A two position temperature controller for ducts, tanks, boilers, etc.
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T6031
Aquastat Controllers. Ambient compensated, high-limit controllers for agricultural and industrial applications. Suitable for line-voltage, low-voltage or millivolt (powerpile) control.
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T6054
Heavy duty Line voltage Thermostat, Spdt, changeover switch
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T915
Proportional Remote Bulb Temperature Controllers for ducts, tanks, boilers, pipes and other heat exchangers. Provides proportioning control of three-wire, low-voltage valve or damper motors.
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T991A
Proportional Thermostat, low voltage, on-off/modulating, water or air 135 Ohm potentiometer
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Temperature Controllers Parts and Accessories
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Compare Select and Compare the Product Models above.  Limited to five.  Some groupings may not be comparable.
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Application
Accessory or Replacement PartAmbistat, High Limit, ambient compensated controller
Automatic reset based on outdoor temperatureAutomatically raises heating control setpoint as outdoor temperature falls
Breaks two circuits in succession on temperature fallChangeover temperature control
Changeover thermostatControl of dampers and valves in heating, cooling or heating-cooling systems
Crop-trol, provides control of portable crop drying equipment.Direct Expansion Bulk Milk Tanks
Front plateHeat or Cool
Line voltage frost protectionLine-voltage, low-voltage or millivolt (Powerpile) control of bulk milk tanks, beverage dispensing machines, ice cube machines, dishwashers, crop drying, tobacco curing and similar applications.
On/off control for applications where electronic accuracy and remote sensing is requiredOn/off or analog controller for applications where electronic accuracy and remote sensing of temperature is required.
On/off or analog controller for applications where electronic accuracy and remote sensing of temperature, humidity or pressure are required.Plug for T675A
Proportional temperature controlProvide line voltage control of heating, cooling and ventilating systems in farm buildings or storage areas
Provide line voltage control of heating, cooling and ventilating systems in farm buildings, storage areas and industrial environmentsProvide modulating control of water or air temperature in ducts or tanks
Provide modulating control of water or air temperature in ducts or tanks, setpoint automatically reset as outdoor temperature changesProvides control in cooling systems
Provides control in heating systemsProvides control in ventilation, heating, cooling or heating-cooling systems
Provides on/off and modulating control of water or air temperature in ducts or tanksProvides on/off and modulating control of water or air temperature in ducts or tanks, setpoint automatically reset as outdoor temperature changes
Regulates temperature of air or liquids in ducts, pipes, tanks and boilersRemote bulb temperature control
Remote bulb temperature control, less enclosureStaging controller for applications where electronic accuracy and remote sensing of temperature is required.
Temperature ControllerTobacco curing control
Two-position Controller that regulates temperature of air or liquids in ducts, pipes, tanks and boilersUnit mounted operating temperature controller for electric heat, fan coil, room a/c, etc.
Use with the T775L2007 or T775P2003 electronic stand-alone controllers to provide up to 12 relay outputs for staged control.Used with Series 90 Modutrol Motors for proportional control of valves and dampers
Output Type
1 SPDT2 SPDT
4 relay output stagesanalog
analog and relayanalog with RESET
relayrelay w/ RESET
Analog Output
0-18Vdc1
24-20mA
Electronic Series 90Electronic Series 91
One 135 Ohm PotentiometerOne 280 Ohm Potentiometer
Two 135 Ohm Potentiometers
Output
1 SPDT1 SPDT (1 hp at 0.7 kW)
1 SPDT (1 hp)1 SPST
1 SPST, break on temperature rise2 SPDT
2 SPDT (1 hp )2 SPDT (1 hp at 0.7 kW)
2 SPDT switch contacts2 SPST
3 SPDT4 SPDT
Relay Outputs
1 SPDT2 SPDT
4 SPDTNone
Digital Output Alarm Ratings (AC)
Digital Output Alarm Ratings (DC)
Relay Contact Ratings (24 Vac)
Relay Contact Ratings (120 Vac)
Relay Contact Ratings (240 Vac)
Number of Sensor Inputs
12
None
Setpoint Temperature Range (F)
-10 F to +100 F-20 F to +50 F
-25 F to +105 F-30 F to +100 F
-30 F to +110 F-30 F to +70 F
-40 F to +220 F-40 F to 248 F
0 F to 100 F0 F to 70 F
0 F to 90 F0 F to 95 F
10 F to 110 F100 F to 240 F
105 F to 220 F110 F to 250 F
14 F to 54 F15 F to 90 F
160 F to 260 F167 F to 257 F
20 F to 90 F30 F to 270 F
30 F to 50 F32 F to 122 F
35 F to 100 F35 F to 110 F
35 F to 45 F36 F to 100 F
40 F to 180 F40 to 180 F
41 F to 176 F5 F to 95 F
50 F to 120 F50 F to 190 F
53 F to 89 F55 F to 105 F
55 F to 175 F55 F to 85 F
55 F to 90 F59 F to 167 F
59 F to 167F59 F to 95 F
70 F to 140 F80 F to 210 F
80 F to 220 F
Setpoint Temperature Range (C)
-1 C to +10 C-1 C to +132 C
-10 C to +12 C-10 C to +30 C
-10 C to +32 C-12 C to +43 C
-15 C to +20 C-15 C to +35 C
-18 C to +21 C-18 C to +32 C
-18 C to +38 C-29 C to +10 C
-32 C to +40 C-34 C to +21 C
-34 C to +43 C-35 C to +35 C
-40 C to +105 C-40 C to 120 C
0 C to 40 C10 C to 49 C
10 C to 88 C13 C to 29 C
13 C to 32 C13 C to 41 C
13 C to 79 C15 C to 30 C
15 C to 75 C2 C to 38 C
2 C to 43 C2 C to 7 C
20 C to 60 C21 C to 60 C
27 C to 104 C27 C to 99 C
38 C to 116 C4 C to 82 C
40 C to 104 C43 C to 121 C
5 C to 80 C71 C to 127 C
75 C to 125 C
High/Low Mod Limit
Analog Output Type
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