circuit breaker for starting the compressor is required. The ECU will draw less
current when it is operating.
For cold weather operation, the ECU has two resistance heaters installed.
You will need to provide enough power to operate the heaters in cold
weather. The ECU will draw 28 amps at 115 volts. In climates were the
temperature falls below 10 degree F and the ECU heatpump is ineffective use
the heat selector switch located just above the controller cable connection on
the ECU to select resistance heat only (Cold weather R heat only) this will
transfer the Heatpump power to the second resistance heater. The first
resistance heater is controlled by the ECU’s operation and is transparent to
the user.
Turn on the power supply circuit breaker.
The ECU’s fan will immediately start to circulate the air within the shelter, but
no heating or cooling will be enabled until the controller is turned on.
Controller setting
The controller will self-test and then display the status of the temperature in
the shelter on the top line of the display. (All temperatures are in Fahrenheit)
Controller cable
