Using the HHC 903-10 and SHC 10 CDT Control

Start-up

Press and hold the Program button to view the setpoint temperature.

  1. Turn the power switch to the ON position.

  2. The display shows the increase in temperature, indicating the unit is heating.

  3. When the preset temperature is reached, the “HEAT ON” LED turns off and display stays at the preset temperature.

Timer Operation

Each of the timers can be started, stopped, or cancelled, and notaffect the status of the other timers.

  1. Press the desired timer button, from either the front or rear of the unit.

  2. The time remaining flashes in both front and rear displays. If #2 timer is started on the front, #2 timer also shows timing down on the rear of the unit. If more than one timer is running, the timer with the least amount of time remaining flashes.

  3. At end of time cycle, alarm sounds and “0:00” displays.

  4. Press the timer to stop alarm and “---” is displayed.

    Press and hold an active timer to cancel.

Vent Adjustment

The vent adjustment on the rear panel limits the humidity level inside the unit. Sliding the knob to a setting of 5 opens the two vent holes completely and a setting of 0 closes them.

Programming Temperature and Timers

  1. Press and hold the Program button until “Prog” displays.

  2. Press the Up and Down arrow buttons to change the flashing setpoint temperature.

    If “LOC” shows in the display at this time, the programming controls are locked and must be unlocked.

    See Special Program.

  3. Press and release the Program button to program the timers. Press any of the timer buttons, on either side of the unit, and when they are flashing, use the Up and Down arrow buttons to set the timer in minutes and seconds.

    If a timer is flashing on one side of the unit, the corresponding timer on the other side of the unit also flashes. For example, if timer #2 on the front of the unit is flashing, #2 on the rear of the unit also flashes. So, both front and rear timers are programmed at the same time.

    More than one timer can be programmed at the same time if they are to be programmed with identical times. Just press the timers to be programmed and when they are all flashing, use the Up and Down arrow buttons to set the time in all timers. Again, both front and rear timers will be programmed.

  4. Press and hold the Program button to exit the Program Mode and all settings are now programmed.