31
Test Run
Pre-Checks
Only perform test run after you have completed the
following steps:
• Electrical Safety Checks – Conrm that the unit’s elec-
trical system is safe and operating properly
• Refrigerant Leak Checks – Check all are nut connec-
tions and conrm that the system is not leaking
• Conrm that suction and liquid valves are fully open.
Procedure
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:
Table 8. Test Run Checklist
Checks Pass Fail
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
Double-Check Pipe Connections
During operation, the pressure of the refrigerant circuit
will increase. This may reveal leaks that were not present
during your initial leak check. Take time during the Test
Run to double-check that all refrigerant pipe connection
points do not have leaks.
1. Using remote control, return unit to the normal
operating temperature.
2. Using insulation tape, wrap the indoor refrigerant pipe
connections that you left uncovered during the indoor
unit installation process.
If Ambient Temperature is below 60°F (16°C)
You cannot use the remote controller to turn on the
COOL function when the ambient temperature is below
60°F (16°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 unit. Press it 2 times to select
the COOL function
3. Perform Test Run as normal
Manual control
button
AUTO COOL
Figure 44. Manual Control Button
Dry Mode Operation (Dehumidication)
Procedure
1. Using the provided wireless remote control, press the
MODE button and select DRY mode.
2. Press the UP/ DOWN button to select the desired
temperature. The temperature setting range is from
60°F (18°C) to 86°F (30°C) in one degree increments.
NOTE: The fan speed is at auto fan under dry mode. The
temperature can be set to a certain temperature
and the unit will turn off if the temperature is lower
than the setting temperature. Also the Follow Me
mode does not operate in this mode.
NOTE: The MWMC model does have the humidistat built-
in and can control the humidity.
Sequence of Operation
When in dry mode operation the unit is actually in cooling
mode the fan speed is at auto fan under dry mode. Set
remote temp to a lower room temp to begin the dry mode
operation. The compressor will stop when the room
temperature is 4°F (2°C) lower than the temperature
setting.
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