Parts to Your Door 90592 Vent Spill Switch Peerless 51590

Product Description

The PARTS TO YOUR DOOR 90592 is a vent spill switch designed to detect combustion gas spillage at the draft hood of a gas-fired boiler or water heater. When flue gases spill back into the equipment room instead of venting properly, this switch interrupts the burner circuit to prevent unsafe operation. It serves as a critical safety control in systems equipped with atmospheric burners and draft hoods. Licensed HVAC technicians and plumbers install this component during routine safety audits or as a direct replacement when the original switch fails or triggers nuisance shutdowns.

This spill switch is suited for residential and light-commercial gas heating applications where draft-hood venting is present. It cross-references to Peerless part numbers 51590 and 60T14-250, making it a direct aftermarket replacement for those original components in Peerless boiler installations where the MCB or MI series control circuit requires a functioning vent safety switch.

Key Features

• Functions as a vent safety shutoff by sensing flue gas spillage at the draft hood
• Interrupts the burner control circuit upon detecting reverse flue flow
• Cross-references to Peerless 51590 and 60T14-250 for direct OEM-style replacement
• Compatible with atmospheric draft-hood boiler and water heater applications

Compatibility

Cross-references to Peerless part numbers 51590 and 60T14-250. Intended for use in Peerless MCB and MI series boiler applications requiring a vent shutoff spill switch.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber. Shut off all gas supply and electrical power to the appliance before removing or installing the spill switch. Verify that the replacement switch is mounted in the same orientation and location as the original to ensure proper spillage detection. Always confirm proper vent draft and flue integrity after installation before returning the system to service.

Technical Specifications

• Type: Switch

Standard Information

• Brand: PARTS TO YOUR DOOR
• Manufacturer Part Number: 90592