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ZMC-ES Series

Macon Model ZMC- ES 24V End switch is a thermoelectric valve drive for opening and closing valves and small valves used in the scope of HVAC technology. The integrated micro switch with floating contact allows direct operation of a pump or fan control unit. The Macon ZMC – ES 24V End switch is controlled by a 24 V room thermostat with two-point output or pulse-width modulation.

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Function

The actuator mechanism of the Macon ZMC-ES with end switch uses a PTC resistor heated wax element and a compression spring. The wax element is heated by applying the operating voltage and moves the integrated ram. The force generated by this movement is transferred on the valve lifter and opens and closes the valve. The integrated micro switch allows the use of its switching signal depending on the opening of the valve.

Features

  • 360º installation position
  • Integrated switch with floating contact
  • Patented 100% protection against leaky valves
  • Available in normally closed (NC)
  • Power consumption 1 watt
  • Simple snap-on installation
  • High functional safety and long expected service life
  • First-Open function
  • Adaptation check on valve
  • Alignment aid on the valve
  • Compact size, small dimensions
  • All round function display
  • Noiseless and maintenance-free

Data

  • Operating voltage: 24V AC/DC +20%…-10%
  • Max. inrush current: <300 mA during max. 2 min.
  • Operating power: 1 W
  • Stroke (actuator travel): 4.0/5.0 mm
  • Actuating force: 100 N +/-5%
  • Switching current for micro switch: 24V AC: 3 A resistive load 1 A inductive load
  • Switching point of micro switch NC: approx. 2mm
  • Fluid temperature: 32°F to 212°F
  • Storage temperature: -130°F to 140°F
  • Ambient temperature: 32°F to 140°F
  • Degree/class of protection: IP 54
  • CE conformity according to: EN 60730
  • Housing material/color: Polyamide/light grey (RAL 7035)
  • Connection line/color: 4 x 0.75 mm^2 PVC/light grey (RAL 7035)
  • Cable length: 3′ 3″
  • Weight with connecting cable (1 m): approx. 5.3 oz
  • Surge protection according to EN 60730-1: min. 2.5 kV