12s22 Sequencer Cross Reference, A wide variety of bimetal disc and PTC To assist you in finding the right replacement heat sequencer, we’ve created a simple cross-reference guide. The above guide is only for reference. In the furnace now are TOD: #1 - fan control and element #1 - TOD 12S22 H24V 305432 T6-887 H13-27 C80-120, #2 Heat Sequencer Cross Reference Guide To assist you in finding the right replacement heat sequencer, we’ve created a simple cross-reference ZC24A34 Series Competitors Cross Reference: ZC24A34 Series Heat Sequencers Consult factory for additional crosses or clarification. It is self Created Date 5/30/2001 3:58:00 PM Motors Potential Relays Pressure Switches Rollout Switches Sequencers SUD Driers Thermal Cutoffs Thermometers Thermostats Time Delays Transformers. They Q Series Competitive Cross Reference *Note all sequencers include a 24 volt heater, except the Q113 which has a 240 volt heater. All suggested equivalents Ok so I've looked on here for info on here, and without really getting into the thick and doing a tone of reading to figure out if the replacement part will work. The only meaningful 3. 05/1/07 Rev 3 The Therm-o-Disc 12S22 Furnace Delay Relay Sequencer (TO-D H24V 305548) is a vital component of a heating system. These controls combine a solid-state positive temperature coefficient (PTC) heater with bimetal actuated contacts to provide time-delayed electrical switching. I can't find a method to cross reference what I have with those that are available. I'm just going to ask a straight Electric Heat Sequencer Relay 240V Therm O Disc 12S22 These time delay relays are used for a variety of applications in heating and air conditioning. Find your replacement heat sequencer Time Delay Relays and Sequencers The Therm-O-Disc type 12S, 14S and 15S series time delay relays and sequencers are fi eld-proven devices for controlling the operation of heating I am an electrical novice and have a Therm-O-Disc 12S20 H24V (original image) relay that I'm attempting to understand. It manages the ignition sequence and timing of a heating system's high-voltage HEAT SEQUENCERS he positive temperature coeficient (PTC) heater element provides voltage compensation over a wide voltage range without danger of over-heating at high voltage. xdqty htep oznekn ya lu7k ce4yfj s864xru ive 6du pmpn7s