DSL- 303

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HEATING / COOLING MICROPROCESSOR BASED TEMPERATURE CONTROLLER
1 HEAT / 1 COOL 3 SPEED FAN

GENERAL DESCRIPTION

The DSL- 303 single compressor Microprocessor based controller is designed for new or replacement residential / commercial heat cool applications. The DSL-303 represents the latest in solid-state surface mount electronics and manufacturing techniques incorporated into a extremely low profile, ultra-slim white ABS plastic case. The DSL-303 offers "user friendly" control of heat cool ststem with 3 speed fan, along with an easy-to-read vertical LCD that displays complete operating status. A direct-wire, easy to-install subbase mounts directly on a standard vertical outlet box or any internal wall surface using anchors and hardware provided.

STANDARD FEATURES
  • Celsius temperature display.
  • Fan selector 3 speed fan.
  • Built-in short cycle protection.
  • Electronic circuitry replaces conventional mechanical anticipator.
  • Internal switch to lock-out the keypad to prevent unauthorised tampering.
  • Day / Night button.
  • No battery required (always maintains program and mode of operation following power outage of any duration).
  • Lockable access cover.
  • Automatic changeover Heat / Cool.
  • Built in anticipation and droop.
  • Independent circuit switching.
  • Selectable minimum run on/off time (2 or 4 minutes).
  • HVAC equipment control using dry contact relays.
  • Remote indoor sensing modules.
  • Optional two zone control with ISOPAC6V-123 control interface and sensor switching.

  • SPECIFICATIONS
    Rated Voltage 20-30 Vac, 24 nominal
    Rated A.C Current: 0.05 to 0.75 Amps continuous per output with surges to 3 Amps max.
    Rated D.C. Current: 0.0 Amps to 0.75 Amps continuous per output with surges to 3 Amps max.
    Control Range Cooling: 16 to 40 C in 1 C Steps
    Heating: 6 to 30 C in 1 C Steps
    Temperature Controller Measurement Range: 0 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
    Equipment Terminations: R, O, H1, H2, Y, G1, G2, G3.
    Power Terminations: 24V - power, 24V (c) - power common.
    Remote Sensor Terminations: RS+V, RS1, RS2.

    OUTPUT TERMINAL FUNCTIONS

    Y Compressor
    G1 Fan Output
    G2 Fan Output
    G3 Air Sweep
    H1 Energises the reversing valve in Heat mode
    O Energises the reversing valve in Cool mode
    H2 Auxilary Heat output
    R Independent switching voltage
    24VAC 24 Volts AC Active
    C 24 Volts AC Common
    LED Free lights for status indication (24vac)
    RS2
    RS1
    RS+V
    Use to connect indoor sensor

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