CALEFFI ZVR103 Valve Switching Relay - 3 Zone

The ZVR series is a zone valve and boiler operating control for multiple zone hydronic heating systems. The ZVR series interfaces with low voltage thermostats, or any other low voltage controllers having a switching action. LED indicators provide functional status and easy system troubleshooting.

• Compatible with 2, 3 and 4-wire thermostats or other low voltage controllers with switching action
• 120 VAC input
• Heavy duty, sealed relays
• 3 pump outputs (120 VAC/5 A) 3 zone valve outputs (24 V)
• Zone priority selectable with 1-hour time-out feature
• Convenient R,W,C and T,T,COM dual labeling at thermostat terminals
• System pump status (on/off) during priority selectable
• Dry contacts (XX,AUX, ZONE 1 E/S) capable of switching line voltage
• Replaceable, snap-fit 40 VA transformer
• Automatic resettable fuse on 24 V circuit
• Large screw terminals for ease of wiring. On-board ground terminals
• Front panel LED indicator light for functional status
• ETL certified to CSA and UL standards

Weight	4.63 lb
Height	12.20 in.
Length	3.15 in.
Width	12.20 in.
Inventory Number	CALEZVR103
MPN	ZVR103