Pioneer Inverter+ WAS Series Owner's Manual page 7

Achieving Optimal Performance
Optimal performance for the COOL, HEAT, and DRY modes can be achieved in the following
temperature ranges. When your air conditioner is used outside of these ranges, certain safety
protection features will activate and cause the unit to perform less than optimally.
Operational Temperature Ranges
Standard Models
Room Temperature
Outdoor
Temperature
Arctic (Low Ambient) Models
Room Temperature
Outdoor
Temperature
Full system rated capacity and efficiency is obtained at the standard rating conditions as developed by the
testing and rating agencies. Deviations from the rating conditions, especially the atmospheric conditions
will be compansated by the variable speed compressor within certain limits. Heat pump systems function
by exchanging energy, in the form of heat, between the indoor air and the outside ambient air (atmosphere).
System's net cooling or heating capacities and the efficiencies change by the atmospheric conditions as well
as the indoor air conditions (temperatures and humidity levels).
Capacity of the system required for a specific area or application must be determined proffessionally by
specific calculations based on several internal and external factors.
To further optimize the performance of your unit, do the following:
Keep doors and windows closed.
•
Limit energy usage by using TIMER ON and TIMER OFF functions.
•
Do not block air inlets or outlets.
•
Regularly inspect and clean air filters.
•
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COOL mode HEAT mode
17°C - 32°C 0°C - 30°C
(63°F - 90°F) (32°F - 86°F)
-15°C - 30°C
0°C - 50°C
(5°F - 86°F)
(32°F - 122°F)
COOL mode HEAT mode
17°C - 32°C 0°C - 30°C
(63°F - 90°F) (32°F - 86°F)
-20°C - 30°C
-15°C - 50°C
(-5°F - 86°F)
(5°F - 122°F)
FOR OUTDOOR UNITS
WITH ELECTRIC HEATERS
DRY mode
(MOST ARCTIC VERSIONS)
When outside
10°C - 32°C
temperature is below 0°C
(50°F - 90°F)
(32°F ), we strongly
recommend keeping the
0°C - 50°C
(32°F - 122°F) unit energized at all
times to ensure smooth
ongoing performance.
DRY mode
10°C - 32°C
(50°F - 90°F)
0°C - 50°C
(32°F - 122°F)