If replacing a 3-wire motor with this 4-wire version

as well as SC11 signal conditioners for PLC integration

maintaining optimal airflow and system pressure

This results in the control board failing to see the flame even if the burner is lit

preventing the compressor from re-engaging too quickly

Lovejoy 68514411075 Insert 321702-401 If replacing a 3-wire motorThe Lovejoy 68514411075 is a high performance L090 L095 urethane spider designed for demanding power transmission environments. Engineering with an open center design, this elastomeric insert allows for the shafts of the driver and driven equipment to be positioned within a short distance, optimizing space in compact HVACR assemblies. The urethane material provides 1. 5 times the torque capacity of standard NBR, making it ideal for high torque