Z55P Caleffi Z-one 3/4" Press 24V 2-Way Motorized Zone Valve With Terminal Blocks

• Two-way zone valve
• Spring return
• Normally closed actuator: code Z151000
• Auxiliary micro-switch
• Max body pressure: 300 psi
• Temp range: 32 - 240F
• Suitable fluids: water, 50% max glycol, 15 psi max steam
• Power Supply: 24 VAC
• Power Consumption: 5 W, 7 VA
• Rating of auxiliary micro-switch contacts: 0.0 A min, 0.4 A max 24 V (24 V only)
• Screw terminal connection
• UL 873, cUL Listed and CE
• UL 1995 Sec. 18 air plenums and ducts
• US Patent 7,048,251

Install Instructions
Specification Sheet

Z-one valves are used to automatically shut-off the flow or redirect hot and chilled water in hydronic systems, open systems, closed systems, low-pressure steam; and are UL listed for plenum installations. The motorized two-position, on/off, spring return Z1 series actuator has an end mounted push button for quick installation to the valve body. The actuator is equipped with or without an auxiliary micro-switch and models are either normally closed or normally open and with wire or terminal connections. The high temperature zone valve body Z2 series is 2-way straight through and the valve body Z3 series is 3-way diverting or mixing. The Z1 series actuator is easily attached by a push button lock and requires no tools. The Z-one valve provides 100% bubble-tight seat close-off leakage. The high temperature and high close-off performance characteristics of these zone valves, combined with the compact size, makes them suitable to fit inside baseboards or directly in fan coil units. Z-one valves are available with 1/2 to 1 inch press fittings, a copper tail-piece with union nut, making installation and maintenance fast, easy and efficient. Special slots in the EPDM O-ring allows fluid to leak during system testing if unpressed and provide a perfect leak proof seal when completely pressed. Some models are low-lead brass, for domestic hot water applications.