Test Operation - Midea BREEZELESS Technical Manual

9. Test Operation

9.1 Before test run:
Only perform test run after you have completed the
following steps:
• Electrical Safety Checks – Confirm that the unit's
electrical system is safe and operating properly
• Gas Leak Checks – Check all flare nut connections and
confirm that the system is not leaking
• Confirm that gas and liquid (high and low pressure)
valves are fully open
9.2 Test Run Instructions
You should perform the Test Run for at least 30 minutes.
1. Connect power to the unit.
2. Press the ON/OFF button on the remote controller to
turn it on.
3. Press the MODE button to scroll through the following
functions, one at a time:
• COOL – Select lowest possible temperature
• HEAT – Select highest possible temperature
4. Let each function run for 5 minutes, and perform the
following checks:
List of Checks to Perform
No electrical leakage
Unit is properly grounded
All electrical terminals
properly covered
Indoor and outdoor units are
solidly installed
All pipe connection points do
not leak
Water drains properly from
drain hose
All piping is properly
insulated
Unit performs COOL
function properly
Unit performs HEAT
function properly
Indoor unit louvers rotate
properly
Indoor unit responds to
remote controller
 Page 46 
PASS/FALL
Outdoor(2) Outdoor(2)
5. After the Test Run is successfully completed, and you
confirm that all checks points in List of Checks to Perform
have PASSED, do the following:
• Using remote control, return unit to normal operating
temperature.
• Using insulation tape, wrap the indoor refrigerant pipe
connections that you left uncovered during the indoor
unit installation process.
9.3 If ambient temperature is below 17°C
(63°F)
You can't use the remote controller to turn on the COOL
function when the ambient temperature is below 17°C. In
this instance, you can use the MANUAL CONTROL button
to test the COOL function.
1. Lift the front panel of the indoor unit, and raise it until it
clicks in place.
2. The MANUAL CONTROL button is located on the right-
hand side of the display box. Press it two times to select
the COOL function.
3. Perform Test Run as normal.
Manual Control
button