7. UNIT SELECTION
OUTDOOR UNITS
82
<Capacity requirement calculation flow chart>
Obtain the thermal load (Qi).
Correct for the indoor unit return air temperature.
Determine the capacity for each indoor unit.
Calculate the total indoor unit capacity (N).
Finish
(calculations to be done for both cooling and heating)
Select the outdoor unit capacity (X).
Select the outdoor unit one rank higher
in capacity.
Apportion the corrected outdoor unit capacity (Qm)
to each indoor unit.
Multiply the apportioned capacity by the indoor
unit temperature correction factor, and make sure it
is equal to or greater than the thermal load.
Thermal load Qi > Corrected capacity Qm
YES
NO
Correct the standard outdoor unit capacity (Qs)
for outside air temperature and piping length to
obtain the corrected capacity (Qm).
Содержание PUHY-RP-Y(S)JM-B
Страница 1: ...DATA BOOK AIR CONDITIONERS MODEL PUHY RP Y S JM B PURY RP YJM B ...
Страница 3: ......
Страница 63: ...60 OUTDOOR UNITS ...
Страница 191: ...188 INDOOR UNITS ...
Страница 243: ...240 SYSTEM DESIGN ...
Страница 287: ...284 SYSTEM DESIGN ...