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  • Barometric Bypass Dampers

    iO HVAC Controls
    Original price $32.65 - Original price $168.96
    Original price $32.65 - Original price $168.96
    Original price $32.65
    $30.32 - $156.89
    $30.32 - $156.89
    Current price $30.32

    BH and BV series barometric bypass dampers are used to automatically bypass excess air when increases in duct static pressure occur due to closing ...

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    Original price $32.65 - Original price $168.96
    Original price $32.65 - Original price $168.96
    Original price $32.65
    $30.32 - $156.89
    $30.32 - $156.89
    Current price $30.32
    Sale Sale
  • Heat Pump Malfunctioning Alarm

    iO HVAC Controls
    Original price $91.00
    Original price $91.00 - Original price $91.00
    Original price $91.00
    Current price $84.50
    $84.50 - $84.50
    Current price $84.50

    The Heat Pump Alert (iO-HPA) is like a nosy neighbor keeping an eye on your heat pump system. It monitors the “W” voltage signal, the temperature o...

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    Original price $91.00
    Original price $91.00 - Original price $91.00
    Original price $91.00
    Current price $84.50
    $84.50 - $84.50
    Current price $84.50
    Sale Sale
  • Lead Lag Controller 24 Volt Powered

    iO HVAC Controls
    Original price $126.08
    Original price $126.08 - Original price $126.08
    Original price $126.08
    Current price $117.08
    $117.08 - $117.08
    Current price $117.08

     This 24V-powered lead/lag controller packs a punch for balancing the operational time of two redundant devices. The iO-LL is microprocessor-contro...

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    Original price $126.08
    Original price $126.08 - Original price $126.08
    Original price $126.08
    Current price $117.08
    $117.08 - $117.08
    Current price $117.08
    Sale Sale
  • Round Manual Balancing Damper

    iO HVAC Controls
    Original price $106.42 - Original price $164.29
    Original price $106.42 - Original price $164.29
    Original price $106.42
    $95.64 - $152.55
    $95.64 - $152.55
    Current price $95.64

    The manual balancing dampers are just bursting with possibilities! From huge commercial duct systems to single rooms in a house, you can find the i...

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    Original price $106.42 - Original price $164.29
    Original price $106.42 - Original price $164.29
    Original price $106.42
    $95.64 - $152.55
    $95.64 - $152.55
    Current price $95.64
    Sale Sale
  • Universal Malfunction Monitor with Current Sensor

    iO HVAC Controls
    Original price $113.87
    Original price $113.87 - Original price $113.87
    Original price $113.87
    Current price $105.73
    $105.73 - $105.73
    Current price $105.73

    The UMM-CS monitors the current to the HVAC blower.  If no current is detected after six seconds, the relay contacts can be used to trigger an alar...

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    Original price $113.87
    Original price $113.87 - Original price $113.87
    Original price $113.87
    Current price $105.73
    $105.73 - $105.73
    Current price $105.73
    Sale Sale
  • Universal Malfunction Monitor with Refrigerant Pressure Sensor

    iO HVAC Controls
    Original price $121.36
    Original price $121.36 - Original price $121.36
    Original price $121.36
    Current price $112.69
    $112.69 - $112.69
    Current price $112.69

    The UMM-RP keeps a close eye on the cold brew pressure of your compressor. When the refrigerant dips below the pre-set pressure control, it throws ...

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    Original price $121.36
    Original price $121.36 - Original price $121.36
    Original price $121.36
    Current price $112.69
    $112.69 - $112.69
    Current price $112.69
    Sale Sale
  • Universal Malfunction Monitor With Static Pressure Sensor

    iO HVAC Controls
    Original price $108.22
    Original price $108.22 - Original price $108.22
    Original price $108.22
    Current price $100.49
    $100.49 - $100.49
    Current price $100.49

     The UMM-SP is your HVAC hero, watching over your system like a hawk. If it senses a lack of airflow while the compressor is running, it jumps into...

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    Original price $108.22
    Original price $108.22 - Original price $108.22
    Original price $108.22
    Current price $100.49
    $100.49 - $100.49
    Current price $100.49
    Sale Sale
  • Universal Malfunction Monitor with Suction Line Freeze Stat

    iO HVAC Controls
    Original price $98.49
    Original price $98.49 - Original price $98.49
    Original price $98.49
    Current price $91.46
    $91.46 - $91.46
    Current price $91.46

    The UMM-FS monitors the suction line temperature through a FS-38 Freeze Stat to prevent coil freeze up. If the suction line temperature falls below...

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    Original price $98.49
    Original price $98.49 - Original price $98.49
    Original price $98.49
    Current price $91.46
    $91.46 - $91.46
    Current price $91.46
    Sale Sale
  • Universal Twinning Kit

    iO HVAC Controls
    Original price $257.69 - Original price $289.92
    Original price $257.69 - Original price $289.92
    Original price $257.69
    $239.29 - $269.21
    $239.29 - $269.21
    Current price $239.29

    Our Universal Twinning Kit is like a party starter for your HVAC systems - it allows one thermostat to control up to four units, no sweat! You don'...

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    Original price $257.69 - Original price $289.92
    Original price $257.69 - Original price $289.92
    Original price $257.69
    $239.29 - $269.21
    $239.29 - $269.21
    Current price $239.29
    Sale Sale