Z-one™ Relay (multi-zone)


Multi-zone valve relay and boiler operating control for multiple zone hydronic heating systems. 
Interfaces with low voltage thermostats or any other low voltage controllers having a switching action.

Controls from 3 to 6 zones (model dependent).
System circulator pump and secondary pump is turned on whenever any zone calls for heat.

Install the ZVR relay together with our Z-one™ valves and qualify for an industry exclusive five year warranty.
 Learn more

LED indicators provide functional status and easy system troubleshooting.
ZVR series is a perfect match with Caleffi Z-one™ motorized zone valves.

Power supply:  120 VAC 50/60 Hz
Transformer voltage:  24 VAC
Max transformer load: 
    40 VA (ZVR103 and ZVR104)
    80 VA (ZVR106)

Electrical switch rating:  20 A max combined
Electrical switch rating pumps:  120 VAC, 5 A each
Dry contact rating (AUX, XX, ZONE 1 E/S):  120 VAC, 2 A each

Resettable fuse:  automatic

High capacity 40 VA transformer standard for 3 and 4 zone models (expandable to 80 VA)
80 VA transformer standard for 6 zone control model

↓  Wiring Guide






BIM model

code description weight
ZVR103 3 zone valve control 2.0
ZVR104 4 zone valve control 2.0
ZVR106 6 zone valve control 2.0
NA10343 expansion transformer 0.1


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