Lennox 88M91 Hard Start Kit 320788-702 Engineered with silver contacts and

Engineered with silver contacts and heavy-duty terminals

For mid-static pressure applications requiring precise airflow management

Compact Solid-Core Design: Saves critical space in electrical panels compared to discrete component setups

Optimized Heat Transfer: Engineered fin spacing and tube geometry maximize airflow efficiency across the outdoor coil assembly

the valve may "simmer

Lennox 88M91 Hard Start Kit 320788-702 Engineered with silver contacts andThe Lennox 88M91 Hard Start Kit (Model LB 31200BAR) is an essential OEM compressor start assist designed to provide the necessary mechanical advantage during high torque startup conditions. As any veteran technician knows, repeated high amperage draws during the "inrush" phase degrade compressor motor windings and contactor points. This kit utilizes a high quality start capacitor (rated 176 216 MFD) and a precision potential relay to effectively drop