CALEFFI

Product DescriptionImprove the efficiency of your hydronic heating system with the Caleffi ZSR103, a three-zone valve relay. Designed to control both boiler operations and zonal pumps, this device is a must for any residential or commercial space using low voltage thermostats or similar controllers....

Product DescriptionThe Caleffi ZSR104 is an expandable switching relay designed to control up to four hydronic heating zones with additional priority zoning capabilities. This module is ideal for simplified zoning applications where multiple zones require individual control. Integrates with low voltage thermostats or controllers....

Product DescriptionThe Caleffi ZSR106 is a six-zone switching relay designed for pumps in multi-zone hydronic heating systems. It operates on one hundred twenty volts alternating current and controls multiple zone pumps providing efficient heating. This product extends the versatility of your hydronic system while...

Product DescriptionThe Caleffi Zone Valve Relay, model ZVR103, is designed for controlling multiple zone valves in hydronic heating systems. This device efficiently manages up to three independent zones, ensuring precise temperature control across different areas. Controls up to three zones for customized heating. Compatible...

Product DescriptionThe Caleffi ZVR104 is a four-zone valve relay designed to manage zone-controlled heating systems efficiently. With the ability to handle four zones independently, this device is ideal for enhancing system performance and ensuring uniform heating control. Controls up to four independent heating zones....

Product DescriptionThe Caleffi ZVR106 is a six-zone valve relay designed for hydronic heating systems. It operates on 120 volts AC and controls up to six zone valves. This relay simplifies the management of multiple heating zones, ensuring efficient operation. Controls up to six zone...