24A34-3 White-Rodgers Electric Furnace Fan Heat Sequencer

$20.00

The White-Rodgers 24A34-3 electric furnace sequencer is used on many different electric furnaces to control and sequence the ON/OFF operation of the electric heaters. Sequencers are also used to turn the fan blower ON and OFF.

 

Description

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  • The 24A34-3 White-Rodgers Electric Furnace Fan Heat Sequencer is used on many different electric furnaces to control and sequence the ON/OFF operation of the electric heaters.
  • Sequencers are also used to turn the fan blower ON and OFF.
  • There are several different types of sequencers. In the trade we refer to them as, “1 stack,” 2 stack,” “3 stack.” I would refer to the 24A34-3 as a “3 stack” sequencer.
  • The following was written directly from the installation instruction book: The 24A34-3 White-Rodgers Electric Furnace Fan Heat Sequencer we sell are, “direct replacement units for sequencing both fan and heat. It can be used in a broad range of gas and electric heating equipment and many other applications where time delay is required. The sequencers we sell have a solid-state 24 volt heater, used to energize the control, and a variety of normally open contact sets. These contacts close and open within specified timings and are used to control the furnace fan and heating elements on demand from a room thermostat. These sequencers meet a wide variety of timing requirements and assures long life at high electrical loads as well as minimum radio and TV interference”.
  • Each sequencer is stamped with timing specifications. For example, H1-20 C40-110 means the ON time for heating is 1 to 20 seconds and the OFF time for cooling is 40 to 110 seconds. The first contacts in the sequencer turn ON first and turn OFF last.
  • Below we have two informational YouTube Videos on how to troubleshoot sequencers and how sequencers operate. Please make sure all power is turned off before troubleshooting sequencers.
  • If you have any questions please email us anytime: support@arnoldservice.com
  • We would love to help you out and have your business!

 

24A34-3 White-Rodgers Electric Furnace Fan Heat Sequencer

Below we have some information on how to troubleshoot a sequencer and two YouTube videos on how sequencers and electric furnaces operate. When 24 volts is applied across the two bottom connections on this sequencer you should get continuity (a closed circuit) between the two terminals the one on the left M1 and the one on the right M2. You should also have continuity between M3 & M4. This might take 30 to 90 seconds after the 24 volts is applied before you get the continuity. If you do not get continuity then you might want to purchase one of the sequencers that we have for sale on the following page: Please click here to see the sequencers we sell.

 

2 Stack Sequencer
2 Stack Sequencer

Additional information

Weight1.0 lbs
Dimensions10 x 6 x 7 in

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