Williams Comfort Products 5ES15H5GR Electric Solar Pump

Product Description

The WILLIAMS COMFORT PRODUCTS 5ES15H5GR is an electric solar pump rated at 1.5 horsepower with a 5-gallon capacity, designed for solar thermal and hydronic system applications. This 4-wire, 3-port configuration supports integration into closed-loop and open-loop solar heating systems where reliable fluid transfer is required. Weighing 15.1 pounds, it is a field-ready unit suited for installation by licensed plumbers and solar thermal contractors working on residential or light commercial solar water heating systems.

This pump is intended for use in solar thermal heating systems where electric-driven fluid circulation is required between collectors and storage tanks. The 3-port design supports bypass or mixing configurations common in solar thermal plumbing layouts. The 4-wire electrical connection accommodates standard control wiring for solar differential controllers. Installation is typical in residential solar water heating systems and solar-assisted space heating setups.

Key Features

• 1.5 HP motor output for reliable fluid circulation in solar thermal systems
• 5-gallon capacity rating supports moderate flow-volume applications
• 3-port configuration allows bypass or mixing valve integration
• 4-wire electrical connection compatible with solar differential controllers
• Compact and field-ready at 15.1 pounds

Compatibility

Designed as an OEM-style replacement or direct-install pump for electric solar thermal heating systems requiring a 1.5 HP, 3-port, 4-wire circulator pump.

Installation Notes

Installation should be performed by a licensed plumber or qualified solar thermal technician in accordance with applicable local plumbing codes and the manufacturer instructions. Shut off all system power and isolate fluid supply before removing or installing the pump. Verify that the electrical supply and differential controller wiring match the 4-wire configuration before energizing. Bleed the system of air after installation to ensure proper fluid circulation and pump performance.