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Operating at 480V 1Ph
preventing thermal shock in non-condensing equipment
using this genuine Aaon replacement part is vital for maintaining factory calibration and system communication integrity
making it a versatile aftermarket HVAC part for legacy and modern equipment
including the piston assembly and retainer ring
Laars Heating Systems 2400-110 Stack Switch 320788-702 Operating at 480V 1PhThe Laars Heating Systems 2400 110 Stack Switch is a critical exhaust temperature sensor designed for commercial and residential boiler systems. As an OEM Laars replacement part, this bimetallic stack relay monitors flue gas temperatures to provide essential furnace safety control. Engineered specifically for Mark II H Series (sizes 60 130) and Mark II 9600 models (HWG & CB, sizes 150 250), it ensures the burner only operates when a safe draft and
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