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HVAC Controls

449 Results Found that Include 564 Products 

Results per page: 16 | 32 | 48
Monitor,Line Voltage
  • ICM
  • Monitor, Line Voltage
  • Item # 3UW93
  • Mfr. Model # ICM450
  • Three Phase Line Voltage Monitor, Control Voltage 18-240 VAC, Normally Closed Output Current 10 Amps,...More

Calibration Kit
  • HONEYWELL
  • Calibration Kit
  • Item # 3UC32
  • Mfr. Model # MQP800
  • Pneumatic Calibration Kit, Contains Pressure Bulb Assembly, 10 Feet of 11/32 Inch Outer Diameter x 5/32 Inch...More

Low V T-Stat,Stages Heat 1,Stages Cool 1
  • HONEYWELL
  • Low V T-Stat, Stages Heat 1, Stages Cool 1
  • Item # 4NE58
  • Mfr. Model # TH8110U1003
  • Low Voltage Thermostat, Stages Heat 1, Stages Cool 1, Temp. Settings per Day 4, Programs per Week 7, Terminal...More

Air Vent,Float,Max Operating PSI 150
  • BELL & GOSSETT
  • Air Vent, Float, Max Operating PSI 150
  • Item # 2CMH7
  • Mfr. Model # 78
  • Air Vent, Float, Max Operating PSI 150, Cast Brass Body Material, NPT Connections 3/4 In NPTM In, NPT Inlet...More

Steam Trap,Max OperatIng PSI 15,3/4 In
  • BELL & GOSSETT
  • Steam Trap, Max OperatIng PSI 15,3/4 In
  • Item # 4NU59
  • Mfr. Model # FT015H-3
  • Steam Trap, Float And Thermostatic, Max. Operating PSI 15, Body Material Cast Iron, (F)NPT Connections (In.)...More

  • HONEYWELL
  • 2-Position Actuator
  • Multiple product options available

Pneumatic Thermostat,DA,2-pipe
  • JOHNSON CONTROLS
  • Pneumatic Thermostat, DA, 2-pipe
  • Item # 4XB83
  • Mfr. Model # T-4002-303E
  • Pneumatic Thermostat, Heating, Cooling, DA, Temp Setting Range 55-85 F, Throttling Range 1-5 F, Air...More

  • HONEYWELL
  • Gas Valve
  • Multiple product options available

Room Sensor,Setpoint,Fahrenheit,White
  • SIEMENS
  • Room Sensor, Setpoint, Fahrenheit, White
  • Item # 6RNV1
  • Mfr. Model # 540-680FB
  • Room Temperature Sensor, Series 1000 Override, Setpoint, and Fahrenheit Temperature Display, Connection Plug...More

Line Volt Mechanical Tstat,120 to 480VAC
  • VULCAN
  • Line Volt Mechanical Tstat, 120 to 480VAC
  • Item # 3HL19
  • Mfr. Model # N15/3015-2
  • Thermostat Control, Temperature Range 60 to 250 Degrees Fahrenheit, Sensing Bulb Diameter 1/4 Inch, Sensing...More

Steam Trap,Max OperatIng PSI 125, 3/4 In
  • BELL & GOSSETT
  • Steam Trap, Max OperatIng PSI 125, 3/4 In
  • Item # 4NU71
  • Mfr. Model # B1125S-3
  • Steam Trap, Inverted Bucket, Max. Operating PSI 125, Body Material Cast Iron, (F)NPT Connections (In.) 3/4,...More

Fan/Limit Control
  • JOHNSON CONTROLS
  • Fan/Limit Control
  • Item # 2E383
  • Mfr. Model # A25AN-1E
  • Warm Air, Limit Control, Adjustable Temp, Manual Reset, Switch Action Open on Rise, SPST, Temp. Range (F) 25...More

Valve,Pneumatic,1/2 In
  • SIEMENS
  • Valve, Pneumatic, 1/2 In
  • Item # 6YC73
  • Mfr. Model # 258-02069
  • Pneumatic Valve, Valve Size 1/2 Inch, Coefficient of Volume 4, Maximum Pressure 15 PSI, Spring Range 8-13...More

Low V T-Stat,Stages Heat 1,Stages Cool 1
  • EMERSON CLIMATE
  • Low V T-Stat, Stages Heat 1, Stages Cool 1
  • Item # 1MBD8
  • Mfr. Model # 1F97-1277
  • Low Voltage Thermostat, Stages Heat 1, Stages Cool 1, Temp. Settings per Day 4, 2, 0, Programs per Week...More

Line V Mechanical Tstat,24 to 240VAC,16A
  • JOHNSON CONTROLS
  • Line V Mechanical Tstat, 24 to 240VAC, 16A
  • Item # 2KGR3
  • Mfr. Model # A70HA-14C
  • Line Voltage Thermostat, Remote Bulb, Switch Type SPST/SPST, Switch Action Open / Close on rise, Number of...More

Line Voltge Thermostat Kit,100 to 240VAC
  • HONEYWELL
  • Line Voltge Thermostat Kit, 100 to 240VAC
  • Item # 14A010
  • Mfr. Model # YTL9160AR1000
  • Line Voltage Thermostat Kit, Wireless, Programmable, Switch Type SPST, Sensor Type Thermistor, Color Premier...More

SteamTrap,Thermodynamic,PSI 600,1/2 FNPT
  • NICHOLSON
  • SteamTrap, Thermodynamic, PSI 600,1/2 FNPT
  • Item # 4DXL8
  • Mfr. Model # NTD600-N1C9A
  • Steam Trap, Thermodynamic, Max. Operating PSI 600 psig, Body Material Stainless Steel, Downstream PSI Range...More

Aquastat Controller
  • HONEYWELL
  • Aquastat Controller
  • Item # 5TB81
  • Mfr. Model # L4008A1015
  • Line Voltage Thermostat, Remote bulb Temperature Control, Switch Type SPST, Switch Action Open on Rise,...More

Solenoid Air Valve,120/240VAC,0-25 psi
  • JOHNSON CONTROLS
  • Solenoid Air Valve, 120/240VAC, 0-25 psi
  • Item # 38Y197
  • Mfr. Model # V11HAA-100
  • Pneumatic Solenoid Air Valve, 3 Way, Control Range 0 to 25 psi, 1/4 Barb Air Connections, Contact Action NO /...More

Fan Coil Thermostat,Digital,Programmable
  • PECO
  • Fan Coil Thermostat, Digital, Programmable
  • Item # 6FFX4
  • Mfr. Model # TA180-001
  • Fan Coil Thermostat, Electronic, Digital, Programmable, Switch Action On-Off, Number of Switches 6, Fan...More

  • HONEYWELL
  • Thermostat
  • Multiple product options available

Aquastat Controller, Well Adapter
  • HONEYWELL
  • Aquastat Controller, Well Adapter
  • Item # 2GZL9
  • Mfr. Model # L4006E1067
  • Immersion Controller, Boiler-Mounted, High Limit, Manual Reset, Height (In.) 8-5/8, Depth (In.) 2-1/8, Width...More

Valve,Pneumatic,3/4 In
  • SIEMENS
  • Valve, Pneumatic, 3/4 In
  • Item # 6YC72
  • Mfr. Model # 257-02044
  • Pneumatic Valve, Valve Size 3/4 Inch, Coefficient of Volume 6.3, Maximum Pressure 15 PSI, Spring Range 3-8...More

Room Sensor,Setpoint,Fahrenheit,Beige
  • SIEMENS
  • Room Sensor, Setpoint, Fahrenheit, Beige
  • Item # 6RNV0
  • Mfr. Model # 540-680FA
  • Room Temperature Sensor, Series 1000 Override, Setpoint, and Fahrenheit Temperature Display, Connection Plug...More

Steam Trap,Inverted Bucket,1 In
  • ARMSTRONG INTERNATIONAL
  • Steam Trap, Inverted Bucket, 1 In
  • Item # 36Y199
  • Mfr. Model # 811
  • Steam Trap, Inverted Bucket, Max. Operating PSI 125, Body Material Cast Iron(F)NPT Connections (In.) 1Pipe...More

Steam Trap,Max OperatIng PSI 30, 3/4 In
  • BELL & GOSSETT
  • Steam Trap, Max OperatIng PSI 30, 3/4 In
  • Item # 4NU61
  • Mfr. Model # FT030H-3
  • Steam Trap, Float And Thermostatic, Max. Operating PSI 30, Body Material Cast Iron, (F)NPT Connections (In.)...More

Line Volt Mechanical Tstat,120 to 600VAC
  • JOHNSON CONTROLS
  • Line Volt Mechanical Tstat, 120 to 600VAC
  • Item # 38Y110
  • Mfr. Model # A70HA-1C
  • Line Voltage Thermostat, Heating/Cooling, Switch Type DPST, Switch Action Open / Close on Rise, Number of...More

Line V Mechanical Tstat,Remote Bulb,DPST
  • DAYTON
  • Line V Mechanical Tstat, Remote Bulb, DPST
  • Item # 6EDY9
  • Mfr. Model # 6EDY9
  • Line Voltage Thermostat, Heating, Switch Type DPST, Number of Switches 1, Control Range (F) 60 to 250, Height...More

Aquastat Controller,Differential 5 to 30
  • HONEYWELL
  • Aquastat Controller, Differential 5 to 30
  • Item # 2GZK2
  • Mfr. Model # L6006A1012
  • Aquastat Controller, Height 8 5/8 In, Depth 2 1/8 In, Width 2 In, Temp Range 100 - 240 F, Differential 5 to...More

Ignition Module
  • HONEYWELL
  • Ignition Module
  • Item # 4CZ50
  • Mfr. Model # S8910U1000
  • Ignition Module, Hot Surface Ignition, Lead Length (In.) -, Electrical Connections 1/4 In. Quick Connect, -,...More

Results per page: 16 | 32 | 48