Honeywell 48-202 Electrowell Extended Nut Well 3/4 in Mpt

Product Description

The HONEYWELL 48-202 is an extended nut electrowell designed for low water cutoff (LWCO) operation on hydronic boiler systems. This well-only component accepts a 3/4-inch male pipe thread (MPT) connection and is required when installing or servicing the HydroLevel 3200Plus LWCO control. The electrowell provides the sensing chamber into which the LWCO probe is inserted, allowing the control to detect water level within the boiler. It is installed by licensed plumbers, HVAC technicians, and boiler service professionals during new installations or component replacement.

This electrowell extension is specifically called out as a required accessory for proper LWCO operation on the HydroLevel 3200Plus series. It is used in residential and light-commercial hydronic heating systems where the boiler fitting geometry requires an extended reach to achieve correct probe positioning. The 3/4-inch MPT connection suits standard boiler tappings commonly found on cast-iron and steel sectional boilers.

Key Features

• Extended nut design provides additional probe reach inside the boiler fitting
• 3/4-inch MPT connection fits standard boiler tappings
• Well-only component — pairs with compatible LWCO probe and control
• Required for correct LWCO operation on HydroLevel 3200Plus installations

Compatibility

Required for LWCO operation of the HydroLevel 3200Plus control. Designed as an OEM-style replacement electrowell for hydronic boiler low water cutoff installations using a 3/4-inch MPT tapping.

Installation Notes

Installation should be performed by a licensed plumber or qualified boiler technician. Shut down the boiler, relieve system pressure, and drain the boiler to the appropriate level before removing or installing any tapping components. Apply appropriate thread sealant rated for hydronic systems to the MPT threads before installation. Verify probe seating and system integrity before returning the boiler to service.

Technical Specifications

• Connection Type: 3/4 inch MPT
• Component Type: Extended Nut Electrowell (Well Only)
• Application: Low Water Cutoff (LWCO) Operation

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: 48-202