User Guide

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Z-one™ Z1, Z2, Z3 Series
Function
The Z-one, a two-position spring return zone valve,
is used in heating and air-conditioning systems.
The Z-one series consist of a Z1 actuator which is
easily attached to a Z2 (2-way) or Z3 (3-way) valve
body. Z1 actuator is equipped with or without
auxiliary switch.
The Z-one actuator has a synchronous motor that
winds the return spring and moves the valve paddle
to the desired position. When power is removed the
actuator spring returns the valve paddle. 24V
actuators use a sealed reed switch for end switch,
requiring no minimum current load.
US Patent 7,048,251
Technical Characteristics of Body
Material: - body: forged brass (optional lead-free brass, see page 6 for
certification statement)
- seat: machined brass
- stem: stainless steel
- two o-ring seals EPDM
- paddle EPDM
Medium: water and glycol
Maximum percent of glycol: 50%
Temperature range: 32 to 240°F (0 – 115°C)
Max. static pressure: 15 psi (1 bar) steam
300 psi (20 bar)
Connection: -press (lay length: 3-5/8”; overall length 5-5/8”) ½”, ¾” 1”
-sweat ½”, ¾” 1” & 1 ¼”
- NPT ½”, ¾” & 1”
- SAE flare ½”
- inverted flare ½”, ¾” & 1” sweat, fittings separate
Lay length (press connections): size ½ inch: 3 ½”
size ¾ inch: 3
5
/8”
size ¾ inch (PL): 5”
size 1 inch: 4
1
/8”
Technical Characteristics of Actuator
Material: - base and cover: polycarbonate
- base plate: aluminum
Motor: - voltage: 24 VAC 50/60 Hz Class 2
120 VAC 50/60 Hz
208 VAC 50/60 Hz
230 VAC 50/60 Hz
277 VAC 50/60 Hz
- current draw: 24 VAC – 300 mA
120 VAC – 55 mA
208 VAC – 30 mA
230 VAC – 25 mA
277 VAC – 20 mA