DSL- 400

SINGLE COMPRESSOR AUTO CHANGEOVER HEAT PUMP CONTROLLER WITHOUT AUXILIARY HEAT
1 HEAT / 1 COOL

GENERAL DESCRIPTION

The DSL- 400 single compressor controller is designed for new or replacement commercial or residential heat pump applications without auxiliary heat requirements. The DSL- 400 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- 400 offers "user friendly" control of heating/cooling equipment along with an easy-to-read vertical LCD that displays complete operations status. 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. Day/Night button for user selectable alternate setpoint for manual setback. Does not require a battery (always maintains the last setpoint and mode of operation following power outages of any duration.) Selectable O or B reversing valve outputs. Lockable access cover. Remote clock terminals Outdoor temperature Sensor (optional). Indoor Remote Temperature Sensor (optional). Controller output using relays 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: 5 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 Termination: 24 Vac, 24 Vac (C), Y1, O/B, G Minimum wires required 5 OUTPUT TERMINAL FUNCTIONS Y1 Compressor energised with a call for heating or cooling G Fan is energised with a call for heating or cooling or selected by fan button O Energises the reversing valve with a call for cooling B Energises the reversing valve with a call for heating R Independent Switching Voltage, if required 24 Vac 24 Vac 24 Vac (C) 24 Vac (Common) 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. CLK1 & CLK2 Use with remote Clock/Timer for alternate setpoints