Lochinvar RLY2402K – Hot Surface Ignition Module Kit – 100208464

The Lochinvar RLY2402K is a genuine OEM hot surface ignition module kit designed for compatible Lochinvar commercial boilers, water heaters, and pool heaters. The module controls the burner ignition sequence, including pre-purge, igniter operation, gas-valve activation, flame monitoring, and safety lockout. It replaces select earlier Lochinvar ignition controls and helps restore safe, reliable burner operation.

Features

• Genuine Lochinvar OEM ignition module kit
• Current manufacturer part number: 100208464
• Also identified as RLY2402 and RLY2402K
• Replaces obsolete Lochinvar part number 100167711
• Hot surface ignition control
• Manages the pre-purge, ignition and post-purge sequences
• Controls the hot surface igniter, gas valve and combustion blower
• Monitors flame signal and initiates safety lockout when flame is not established
• 15-second pre-purge
• 2535-second hot surface igniter warm-up period
• Four-second main burner flame-establishing period
• 30-second post-purge
• Designed for select Copper-Fin, Copper-Fin II, Intelli-Fin and Power-Fin equipment
• Compatibility may depend on the appliance model and serial number
• Manufacturer: Lochinvar
• Part Number: 100208464
• Legacy Part Number: RLY2402K
• UPC: 067165099738

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