SHC-7

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COMMERCIAL AUTO CHANGEOVER PROGRAMMABLE HEATING & COOLING CONTROLLER
-1 HEAT/ 1 COOL

GENERAL DESCRIPTION

The SHC-7 programmable controller is designed for new or replacement applications. The SHC-7 represents the latest in solid-state surface mount electronics and manufacturing techniques incorporated into an extremely low profile, ultra-slim white ABS plastic case. The SHC-7 contains a "user friendly" program along with an easy-to-read vertical LCD that displays all current information and operation modes. A direct wire, easy-to-install subbase mounts on a standard vertical outlet box or any dry wall surface using anchors and hardware provided.

STANDARD FEATURES
  • Selectable Celsius or Fahrenheit temperature display.
  • Fan selector for continuous fan operation.
  • Built-in short cycle protection.
  • Electronic circuitry replaces conventional mechanical anticipator.
  • Internal switch to lock-out the keypad to prevent unauthorised tampering.
  • 45 second fan purge after heating and cooling call.
  • 12 hour or 24 hour clock.
  • Copy feature to allow one program to be copied to subsequent days.
  • Does not require a battery (always maintains the last setpoint and mode of operation following power outages of any duration.)
  • Smart Fan function
  • 7 day programming with 2 or 4 events per day (selectable).
  • Lockable access cover.
  • Plenum fan switch.
  • Temperature override (3 hours)
  • Continuous override (Hold).
  • Outdoor temperature Sensor (optional).
  • Indoor Remote Temperature Sensor (optional).
  • Relay outputs.
  • Independent circuit switching.
  • 1 C Heat/Cool separation.
  • Built-in anticipation & droop.
  • Minimum on/off times (2 or 4 minute selectable).


    • SPECIFICATIONS
    Rated Voltage 20-30 Vac, DC 24 Nominal
    Rated A.C Current: 0.050 Amps to 0.5 Amps continuous per output with surges to 1 Amp Max.
    Rated D.C. Current: 0.0 Amps to 0.5 Amps continuous per output with surges to 1 Amp Max.
    Control Range Cooling: 16 to 40 C in 1 C Steps
    Heating: 6 to 30 C in 1 C Steps
    Controller measurement range 0 to 48 C
    O.D.T. Measurement Range - 48 C to 48 C
    Control Accuracy ± 0.5 C At 20 C
    Minimum Deadband: (between heating and cooling) 1 °C
    Dimensions: 114mm x 102mm x 22mm
    Terminations: 24 Vac, 24 Vac (C ), W1, Y1, G
    Minimum wires required 5

    OUTPUT TERMINAL FUNCTIONS

    W1 Energises on a call for first stage heat
    Y1 Energises with a call for cooling
    G Fan is energised with a call for Heating or Cooling or selected by pressing the Fan button
    R Independent Switching Voltage
    24 Vac 24 Vac Hot from the equipment transformer
    24 Vac (C) 24 Vac (Common) from the equipment transformer
    RS2 & RS1 & RS+V Use to connect Outdoor Temperature Sensor option and/or Indoor Remote Sensor Option. Refer to the instructions included with the sensors.

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