Install the ducting to and from the shelter
and fasten with the integrated
clamps. Slide the ducting over the rings and pull the loose end of the cinch
strap to tighten it on the rings. The left upper duct is the outlet air from the
ECU, supply air to the shelter, and the right lower duct is the return air from
the shelter.
Air supply to
the shelter
Air return from
the shelter
Controller
cable
connection
The portable controller is located on the opposite side of the unit from the
Supply/Return ports. It is fasten to the unit with heavy duty industrial Velcro.
The controller can remain on the unit during operation or can be removed and
relocated in a more advantageous position. The controller cable is connected
to the ECU with watertight turn lock connectors. When connecting the
controller cable to both the ECU and Controller you may hear a click when it
locks in place.
The temperature sensing is done at the intake duct of the ECU so the
controller can be placed inside or outside depending on your final needs.
Powering up the ECU
The power supply should be a 100 to 125 volt single-phase supply. Do not
run ECU on any other power sources. The supply power should be
adequately grounded to avoid electrical shocks or the possibility of
electrocution.
For Normal operation, air conditioning and heating, the 1.25 Ton ECU
requires a minimum circuit capable of 30 amps. The ECU will draw less
power in the Normal operation during cooling (AC) but will draw more power
during heating operations as the ECU will operate both the heatpump with a
resistance heater for heating. If wired to a building supply a minimum 30 amp
