Lennox 99K31 Relay 322838-752 a mismatch in diameter can

a mismatch in diameter can lead to improper fuel-to-air ratios

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High-Pressure Durability: Engineered to handle up to 600 PSI

This module is designed exclusively for 1/2 HP EON 5

CFL and LED Optimized: Fully compatible with modern lighting loads

Lennox 99K31 Relay 322838-752 a mismatch in diameter canThe Lennox 99K31 relay is a critical OEM replacement component designed specifically for managing blower motor operations in Lennox residential furnaces and AHUs. Rated for a 2. 5 4. 0 AMP load, this SPNO (Single Pole Normally Open) relay ensures reliable low voltage control over high voltage circuits. Field technicians prioritize the 99K31 for its precise 24V coil voltage compatibility, which prevents common failures like relay chatter or pitted