Honeywell HPSR104 4 Zone Switch Relay

Price: $145.00 per pcs

Availability: Ships within 1-3 business days

Description

A switching relay for 4 zones. Takes the thermostat call and switches line voltage to the circulator while passing the demand to the boiler, isolating the low-voltage control circuit from the pump. It is chosen by the number of zones and by whether it must give priority to an indirect water heater; it mounts near the boiler and is wired per its diagram.