Caleffi Z56P : 2-Way Valve, 1" Sweat, 7.5 Cv, 20 psi ΔP, (2) NA16266 Press Fittings, Normally Closed Spring Return Valve Actuator, 24V AC, On/Off Control Signal, (1) SPST 0.4A Auxiliary Switch, Terminal Block
The Caleffi Z56P is a 2-way motorized zone valve assembly featuring a 1" sweat valve body with (2) NA16266 press fittings. It includes a Z151000 normally closed spring-return actuator with screw terminal block for quick, secure wiring. Designed for use in hydronic heating and cooling systems, the actuator automatically closes upon power loss for dependable, fail-safe operation.
UL873, cULus Listed, and CE certified, this assembly complies with UL 1995 section 18 for air plenums and ducts. The built-in SPST auxiliary microswitch provides control feedback or interlock functionality. The brass valve body with stainless steel stem and EPDM seals delivers durable performance under high system pressures and temperature variations.
Key Features
- 2-way motorized zone valve assembly with normally closed actuator
- 1" sweat connection with (2) NA16266 press fittings for easy installation
- Spring-return actuator automatically closes when power is removed
- Screw terminal block for simple and secure wiring
- Integrated SPST auxiliary microswitch (0.4A @ 24V AC)
- UL, cULus, and CE certified for air plenum and duct applications
Technical Specifications
- Valve Type: 2-Way Straight
- Connection Type: 1" Sweat with (2) NA16266 Press Fittings
- Maximum Operating Pressure: 300 psi
- Maximum ΔP: 20 psi
- Cv Rating: 7.5 gpm
- Medium Temperature Range: 32–240 °F
- Electric Supply: 24V AC
- Power Consumption: 7 VA (at full capacity)
- Auxiliary Switch Rating: 0.4A @ 24V AC
- Maximum Glycol Concentration: 50%
- Medium: Water, glycol solutions, vapor (max 15 psi)
Datasheets
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Caleffi Z-One Motorized Zone Valve Installation and Commissioning Manual |
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- Valve Pattern:
- 2-Way
- Valve Size:
- 1 Inch
- Connection Type:
- Sweat
- CV Rating:
- 7.5
- GPM:
- 15 @ 4 psi
- Actuator Type:
- Non Fail-Safe
- Voltage:
- 24VAC
- Control Signal:
- On/Off
- Auxillary Switch:
- Yes
- NEMA 4X Enclosure:
- No
