Air conditioner operating conditions
For proper performance, operate the air conditioner under the following temperature conditions:
Outdoor temperature
Room temperature
Cooling operation
Room relative humidity – less than 80%. If the air conditioner operates in excess of this
[CAUTION]
figure, condensation may occur on the surface of the air conditioner.
Outdoor temperature
Heating operation
Room temperature
If the air conditioner is used outside of the above conditions, the safety protection may activate.
27-EN
: 23 °F to 122 °F (-5 °C to 50 °C) *
: 70 °F to 90 °F (21 °C to 32 °C) (Dry bulb temperature),
59 °F to 75 °F (15 °C to 24 °C) (Wet bulb temperature)
-
: -13 °F to 60 °F (
25 °C to 15.5 °C) (Wet bulb temperature)
: 59 °F to 82 °F (15 °C to 28 °C) (Dry bulb temperature)
11
Maintenance
WARNING
Cleaning the air filter and other parts of the air filter involves dangerous work in high places, ask a qualified
service person to do it.
Do not attempt to do it by yourself.
To avoid the possibility of electric shock, always turn off the system's power before performing any system
cleaning or maintenance. Turn off the outdoor disconnect switch located near the outdoor unit.
Operating the system with dirty filters may damage the indoor unit and could cause reduced cooling
performance.
Periodic Maintenance - periodic maintenance is recommended to ensure proper operation of the unit.
Recommended maintenance intervals may vary depending on the installation environment, e.g. dusty zones. Refer
to the following table.
Periodic Maintenance
INDOOR UNIT
1
Clean Air Filter*
Clean Drain Pan
2
Clean indoor heat exchanger*
2
Clean fan*
Change Remote Control Batteries
OUTDOOR UNIT
Clean Outdoor heat exchanger from Outside
2
Clean Outdoor heat exchanger from Inside*
2
Blow Air Over Electric Parts*
2
Check Electric Connection Tightening*
2
Clean Fan Wheel*
2
Check Fan Tightening*
2
Clean Drain Pans*
*1: Increase frequency in dusty zones.
*2: Maintenance to be carried out by qualified service personal.
NOTE
The high static ducted type and slim ducted type are not equipped with an air filter when shipped from the factory.
The type of air filter (field supplied), installation position, and maintenance method vary depending on the local duct
design. For details, contact the contractor or dealer from whom you purchased the product.
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EVERY MONTH
EVERY 4 MONTHS
EVERY YEAR
1
1
EVERY MONTH
EVERY 4 MONTHS
EVERY YEAR
1
1
1
1
1
1
1
1
1
1
EN
28-EN