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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
Contractors can utilize this SPST limit control to reduce inventory
it monitors the heat exchanger for overheating symptoms and will automatically open the circuit to de-energize the gas valve if temperatures exceed the 140°F threshold
Rugged Construction: Features high-quality thermosetting resin contact blocks and a Class B coil insulation rating (130°C)
Once the water cools
also identified by model number FS4-15SS
Lennox 26H78 Rollout Switch Contractors can utilize this SPSTThe Lennox 26H78 Rollout Switch (catalog number 26H7801) is a critical safety component designed for furnace flame rollout protection. This OEM Lennox part is a manual reset, SPST (Single Pole Single Throw) configuration that actuates at a fixed temperature of 260 degrees F. When the switch senses excessive heat near the burner boxtypically caused by a cracked heat exchanger, blocked flue, or insufficient combustion airit breaks the 24V circuit to the