ZVR103 – 3 Zones Valve Control


3 Zones Valve Control for radiant floor system with 3 thermostats

Technical sheet User manual


Part #: ZVR103 SKU: CF-ZVR103 Categories: , ,

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.

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


Weight2,2 kg
Dimensions31 × 31 × 8 cm