iO HVAC Controls TWIN Universal Twinning Kit 24 Volts vent-pipe-fittings It supports both R-22 and

It supports both R-22 and R-410A refrigerants and is optimized for easy attic access with a depth of 20-1/8 inches

3-inch frame and an open ventilated enclosure

1 1/4 N/C Valve

Designed for easy installation on existing H-4100 series thermostats

iO HVAC Controls TWIN Universal Twinning Kit 24 Volts vent-pipe-fittings It supports both R-22 andProduct Description The iO HVAC Controls Universal Twinning Kit, model TWIN, is engineered to facilitate the simultaneous control of two or more HVAC units using a single thermostat. This versatile kit can be expanded to manage up to four HVAC systems, making it an essential tool for optimizing heating and cooling operations in larger buildings. It is compatible with both single stage and multi stage as well as heat pump systems. Easy installation