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HVAC and Refrigeration

139 Results Found that Include 206 Products

Results per page:  16 | 32 | 48
Pneumatic T-Stat Cover,Beige
Room Sensor,Setpoint,Fahrenheit,Beige
Reverse Acting Relay,Pneumatic,30 PSI
Solenoid Air Valve,3-Way,120VAC,1-20 psi
  • SIEMENS
  • Solenoid Air Valve, 3-Way, 120VAC, 1-20 psi Solenoid Air Valve,3-Way,120VAC,1-20 psi
  • Item # 44C453
  • Mfr. Model # 265-1028
  • Solenoid Air Valve, Normally Closed, Control Air Pressure 1 to 20 psi, 1/4 In. Barb Air Connections, Max. Air...More

  • Category : Pneumatic Valves
Cover, Thermostat,Thermometer Exposed
Room Sensor,Setpoint,Fahrenheit,White
Room Sensor,Series 1000,Logo,Beige
Room Sensor,Setpoint,Override,Beige
Airflow Switch,Auto Reset,SPDT
  • SIEMENS
  • Airflow Switch, Auto Reset, SPDT Airflow Switch,Auto Reset,SPDT
  • Item # 2KGR4
  • Mfr. Model # 141-0574
  • Airflow Switch, Auto Reset, Differential 0.06 To 0.6 WC, SPDT Switch Type, Pressure Setting Range 0.05 To 1.0...More

  • Category : Duct Pressure Switches
Calibration/Wrench Kit
Room Sensor,Setpoint,Override,White
Pneumatic T-Stat Cover
Overload Relay,30A,3 Pole
Actuator,27in-lb.,10/120 sec.
Combustion Actuator
Temperature/Humidity Sensor,RJ11
  • SIEMENS
  • Temperature/Humidity Sensor, RJ11 Temperature/Humidity Sensor,RJ11
  • Item # 48RH82
  • Mfr. Model # QFA3232.FWSN
  • Temperature/Humidity Sensor, BACnet, Connection Screw Terminals, RJ11 Inputs, Temp: 10k ohm Type 3, RH:...More

  • Category : Building Automation Controls
Temperature/Humidity/CO2 Sensor,OLED
  • SIEMENS
  • Temperature/Humidity/CO2 Sensor, OLED Temperature/Humidity/CO2 Sensor,OLED
  • Item # 48RH90
  • Mfr. Model # QPA2284.FWSC
  • Temperature/Humidity/CO2 Sensor, BACnet, Voltage 18 to 36 VDC or 24 VAC, Connection Plug, Power Inputs,...More

  • Category : Building Automation Controls
Valve Body,1/2in,2 and 3 Way
Pressure Signal Selector, Pneumatic Type
  • SIEMENS
  • Pressure Signal Selector, Pneumatic Type Pressure Signal Selector, Pneumatic Type
  • Item # 2KGR6
  • Mfr. Model # 243-0019
  • Pressure Signal Selector, Pneumatic Type, Air Consumption 44 SCFM, Max Safe Air PSI 30, Max Safe Operating...More

  • Category : Pneumatic Electric Switches
Relative Humidity Duct Sensor,24VAC
  • SIEMENS
  • Relative Humidity Duct Sensor, 24VAC Relative Humidity Duct Sensor,24VAC
  • Item # 5WYF0
  • Mfr. Model # QFM2100
  • Humidity Duct Sensor, For Use With 0 - 10Vdc Controller Inputs, Color White, Height (In.) 1.625, Width (In.)...More

  • Category : Thermostat Accessories
Duct CO2 Sensor,24VAC
  • SIEMENS
  • Duct CO2 Sensor, 24VAC Duct CO2 Sensor,24VAC
  • Item # 5WYE9
  • Mfr. Model # QPM2100
  • CO2 Duct Sensor, For Use With 0 - 10Vdc Controller Inputs, Color White, Height (In.) 1.625, Width (In.) 1.25,...More

  • Category : Thermostat Accessories
Solenoid Air Valve,3-Way,120VAC,0-50 psi
  • SIEMENS
  • Solenoid Air Valve, 3-Way, 120VAC, 0-50 psi Solenoid Air Valve,3-Way,120VAC,0-50 psi
  • Item # 4E725
  • Mfr. Model # 265-1022
  • Solenoid Air Valve, Normally Open/Normally Closed, Control Air Pressure 0 to 30 psi, 1/4 In. Barb Air...More

  • Category : Pneumatic Valves
Pneu Temp Transmitter,DA,30 to 180F
  • SIEMENS
  • Pneu Temp Transmitter, DA, 30 to 180F Pneu Temp Transmitter,DA,30 to 180F
  • Item # 4E683
  • Mfr. Model # 356-0750
  • Pneumatic Temperature Transmitter, Direct Acting, Max. Air Pressure 30 psi, Max. Ambient Temp. 225 Degrees F,...More

  • Category : Pneumatic Temperature Transmitters
Controller,Receiver
  • SIEMENS
  • Controller, Receiver Controller,Receiver
  • Item # 4E685
  • Mfr. Model # 195-0003
  • Pneumatic Receiver Controller, Pressure Rating Operating 22, Maximum 30 PSI, Air Consumption 60 SCIM, Input...More

  • Category : Pneumatic Controllers
Room Sensor,Series 1000,Logo,White
Controller,Receiver
  • SIEMENS
  • Controller, Receiver Controller,Receiver
  • Item # 4E686
  • Mfr. Model # 195-0011
  • Pneumatic Receiver Controller, Single Input, Control Type Input #1 DA, Input #2 RA, Operating Temp. Range (F)...More

  • Category : Pneumatic Controllers
Zone Valve,Globe, 1/2 in. NPT
  • SIEMENS
  • Zone Valve, Globe, 1/2 in. NPT Zone Valve,Globe, 1/2 in. NPT
  • Item # 25DW44
  • Mfr. Model # 257-02039
  • Zone Valve, Globe, Height (In.) 11, Width (In.) 4, Depth (In.) 1-1/2, 2.5, 45, 250, 0, Spring Return, For Use...More

  • Category : Zone Valves
Results per page:  16 | 32 | 48
Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order. More