Zone Mix-Air Sensor

The Zoning Mixed Air Sensor, Model S1-ZMS, is a duct mounted sensor used with the S1-MMZ, S1-MMH3 and S1-ZMS4 Zone Control Panels. The S1-ZMS senses the supply air plenum temperature and protects the furnace, compressor or heat pump from over temperature as zone dampers close down and air flow may be restricted and especially when a by-pass is used and supply is mixed back into the return air which can cause extreme plenum temperatures.