Description
Sensus 143 16 021 13 Spring Els PW 17895 The York S1 024 19082 034 Heat Sequencer The York S1 024 19082 034 Heat Sequencer Relay is a professional grade 24V control designed for the precision management of electric heating elements in residential and light commercial air handlers Common Questions How do I test a York S1 3110 3571 sequencer