Features; Auto Restart; Anti-Mildew; Louver Angle Memory - Lennox MHA Series Manual

Features

Auto Restart

If the unit loses power, it will automatically restart with the
prior settings once power has been restored.

Anti-Mildew

When turning off the unit from COOL or DRY modes, the
heat pump will continue to operate at very low power to dry
up condensed water and prevent mildew growth.

Louver Angle Memory

When turning on your unit, the louver will automatically
resume its former angle operation.

Refrigerant Leakage Detection

The indoor unit will automatically display "EC" if it detects
refrigerant leakage. For a detailed explanation of your unit's
advanced functionality (such as TURBO mode and its self-
cleaning functions), refer to "Operation (Wireless Remote
Controller)" on page 4.

Louver Adjustment

IMPORTANT
DO NOT adjust the louvers by hand. Louvers are
adjustable only by using the furnished wireless remote
controller or optional wired controller.
Use the furnished wireless remote control or optional wired
controller to set the position of the discharge air louvers.
The louvers may be set to automatically swing between
the outward and downward positions, OR you may set the
louvers so that they are stationary in a single position. It is
always recommended to direct the ho rizontal discharge air
louvers outward while cooling.
Auto-swing operation
Set louvers to swing up and down automatically.
Figure 2. Louver Operation
Refer to "Function Buttons" on page 5 for using the
swing and direct buttons.
Cooling operation
Set horizontal louvers outward.

Return Air Filters

Blocked or dirty return air filters affect system oper ation and
efficiency. Air filters should be checked monthly in order to
ensure proper air flow to the in door unit. It may be necessary
to check the filter more frequently if the unit is installed in an
area with a large amount of dust.
The filter may be removed and cleaned, or it should be
replaced with a filter of like kind and size if it is impossible
to clean the filter.

Cleaning Return Air Filters

Check return air filters every two weeks and clean as
necessary. Lift the front panel of the indoor unit.
1. Grip the tab on the end of the filter, lift it up, then pull it
towards yourself.
2. Pull the filter out.
3. Clean the return air filters with warm soapy water. Use
only mild detergent.
Filter Tabs
Figure 3. Filter Removal and Service
4. Rinse the return air filter with fresh water and then
shake off excess water.
5. Dry filter in a cool and dry place. Refrain from
exposing filter to direct sunlight.
6. Slid return air filters back into the indoor unit.
7. Close the front panel.
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