Weber Huff SR506 6 Zone Switching Relay

Product Description

The WEBER HUFF SR506 is a 6-zone switching relay designed for hydronic heating systems. It controls zone-by-zone circulation by switching relays in response to thermostat calls for heat. The board features clearly labeled layout for fast wiring and troubleshooting. External indicator lights provide instant diagnostic feedback during new installation start-ups and service calls. Standard replaceable relays in an ice cube form factor keep maintenance straightforward. Licensed HVAC technicians and plumbers handling hydronic systems are the primary installers of this relay.

The SR506 is suited for residential and light commercial hydronic heating applications where multiple zones require independent switching control. It works with both conventional and programmable thermostats, making it adaptable to a wide range of system configurations. The relay supports priority switching and can be expanded to accommodate larger systems. It is also compatible with add-on power controls and boiler reset controls where the system demands additional functionality.

Key Features

• 6-zone switching capacity for multi-zone hydronic heating systems
• External indicator lights for instant zone-status and diagnostic feedback
• Standard ice cube form factor replaceable relays for easy field service
• Compatible with conventional and programmable thermostats
• Expandable up to 20 zones with priority switching
• UL listed construction

Compatibility

Designed as an OEM-style replacement or new-installation switching relay for multi-zone hydronic heating systems using conventional or programmable thermostats.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber familiar with hydronic heating systems. De-energize the system and shut off power to the boiler and zone controls before wiring or replacing this relay. Follow all applicable local codes and manufacturer wiring diagrams during installation. Verify thermostat wiring and zone valve compatibility before energizing the system.

Technical Specifications

• Number of Zones: 6
• Relay Type: Ice cube replaceable
• Listing: UL listed

Standard Information

• Brand: WEBER HUFF
• Manufacturer Part Number: SR506