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The LOCHINVAR L100173794 is a heat exchanger access door kit designed for use in commercial and residential boiler or water heater systems. This kit provides a serviceable entry point to the heat exchanger section of the unit, allowing qualified technicians to inspect, clean, or perform maintenance on internal components without full disassembly of the appliance. It is a direct OEM-style replacement part intended for use by licensed plumbing and HVAC professionals who service LOCHINVAR-branded hydronic heating and hot water equipment.
This access door kit is suited for installations where periodic heat exchanger maintenance is required as part of a standard service schedule. It is typically installed in boiler rooms, mechanical rooms, or utility spaces where LOCHINVAR heating systems are in operation. Technicians working on hydronic heating systems, combination heating units, or commercial water heaters will encounter this type of serviceable access assembly during routine inspections and burner service calls.
Designed as an OEM-style replacement access door kit for LOCHINVAR boiler and water heater systems requiring heat exchanger access. Consult the equipment service manual or LOCHINVAR technical support to confirm fitment for a specific unit model before ordering.
Installation should be performed by a licensed HVAC technician or plumber experienced with hydronic heating equipment. Before beginning any service, shut down the boiler or water heater, isolate the gas supply, and allow the unit to cool completely. Inspect the door gasket and sealing surfaces during installation and replace any worn components to maintain proper combustion integrity. Always follow the manufacturer service documentation and applicable local mechanical codes when reassembling access panels on combustion appliances.
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