York S1-3500-3121 Limit Switch 340155-7026 Durable Construction: Features a rugged

Durable Construction: Features a rugged blower housing and a thermally protected 120V inducer motor designed for continuous duty during peak heating cycles

and Z61000

this 24V AC time delay relay is engineered to prevent short-cycling and coordinate staged cooling demands

the design allows for the actuator to be swapped or upgraded without removing the valve body from the line

For contractors performing a blower motor replacement

York S1-3500-3121 Limit Switch 340155-7026 Durable Construction: Features a ruggedWhen you are troubleshooting a mid efficiency or high efficiency furnace that is short cycling or displaying a four flash diagnostic code, the York S1 3500 3121 Limit Switch is the OEM replacement part required to restore safe operation. This is a normally closed (NC) safety device calibrated for an opening temperature of 165F and a closing temperature of 105F. As a genuine Johnson Controls component, it is designed for drop in compatibility with