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TWD-0813-033 Neo Manual REV:Layout 1 9/27/13 11:15 AM Page 23

SYSTEM OPERATION

COOLING OPERATION

How it works:

In cooling mode, your neo indoor unit will absorb heat from the room, then the

neo outdoor unit will discharge the heat to the outdoors. The neo cooling capacity

decreases as the outdoor temperature increases. This causes the neo to work harder

and longer to hold the selected room temperature. Your neo unit will operate in

cooling down to 41°F (5°C)

Indoor Coil Freeze Protection:

Frost may form on the indoor coil during cooling operations when the outdoor

temperature below 50°F (10°C). Prolong operation may cause ice to form on the

indoor coil and block airflow. If the neo indoor unit microcomputer detects ice on

the indoor coil it will stop the compressor to defrost the coil and protect the unit.

HEATING OPERATION

How it works:

In heating mode, your neo outdoor unit will absorb heat from the outdoor ambient,

then the neo indoor unit will discharge the heat to the room.The neo heating

capacity decreases as the outdoor temperature decreases.Your neo unit will heat

down to 5°F (-15°C).

During extreme cold outdoor temperatures, you may need an additional heating source

to supplement the neo heating output.

Defrost Function:

In heating mode, frost may form on the outdoor coil during humid and low outdoor

temperature conditions. Prolong operation may cause ice to form on the outdoor coil

and block airflow. This will reduce the neo' s heating capacity.

If the neo microcomputer detects ice on the outdoor coil, it will switch automatically

to defrost mode to melt the ice and clear the coil. During defrost mode, heating will be

discontinued and the neo indoor unit will flash the Defrost indicator. The compressor

will continue to run while indoor and outdoor fans will stop. It is normal to see

steam or vapor coming from the outdoor unit during defrost mode. Defrost mode

will terminate 12 minutes after initiation of defrost cycle or when the outdoor coil

temperature is 50°F (10°C) or greater.

ENERGY SAVING TIPS

1. Relaxing room temperature at night is OK: During the nighttime hours you

don't require the same level of conscious cooling or heating. Try using Sleep Mode to

gradually relax room temperature and allow the unit to run less and save energy.

2. Curtains and shades: In the summer, you need to block the effects of the sun.

Close window curtains and shades on the south and west side of your home to help

block solar heat. In winter, the sun is your friend. Open curtains and shades to allow

solar heat into your room.

3. Close doors: If you don't need to heat and cool your whole home, confine the heating

and cooling to one room by closing doors. Limit the space you're heating and cooling

to specified capability of the unit.

4. Service the unit: Some basic maintenance might be all you need. The outdoor unit

will greatly benefit from a good hosing out, especially in treed areas where seeds and

other debris can stick to coil fins and make the unit work up to 15% harder!

5. Rearrange the room: Furniture that obstructs airflow means you could be heating

and cooling the back of a chair or the front of a sofa instead of the actual living space.

Use the Swing Louvers to help direct the air in the right direction for the room; remove

or rearrange obstacles blocking airflow.

6. Try 75 degrees: 75°F is a good point for an air conditioner to run at its optimal

performance level. Even a 5-degree change in temperature can make your unit use

up to 40% more energy!

7. Lighting: Turning lights off can help reduce your heat. Each light bulb is a tiny heater.

Your air conditioner must waste energy overcoming the heat from your lights to reach

and hold your desired room temperature.

8. Is anyone home? If possible, while you're away turn your unit to Auto mode and

make sure windows and drapes are closed. Although the room temperature will be

uncomfortable for a few minutes when you come home, the unit will have the room

back to your desired temperature in no time.

9. Don't forget the fan: The fan is much like a car. The faster it runs, the more energy is

uses. Sometimes we need the car to go fast, but slow is good enough most of the time.

Try saving money by using the comfortable quiet low fan speed as much as possible.