iO HVAC Controls iO-Twin Universal Twinning Kit HHD1S Start air conditioners that are

Start air conditioners that are close to breaking down

Waterworks lid keys open

Available in three hex sizes to fit most application needs

constant burning pilot for main burner ignition

iO HVAC Controls iO-Twin Universal Twinning Kit HHD1S Start air conditioners that areiO HVAC Controls iO Twin Universal Twinning Kit The twinning kit is designed to allow a single thermostat to control two separate HVAC units. It can also be expanded to control a total of four HVAC units. The twinning kit can be used on common or separate ducted systems with single stage, multi stage and heat pump equipment. Only standard 18 gauge thermostat wire is required. Thermostats and HVAC units can be located up to 300 from the twinning kit