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Mitsubishi Electric CITY MULTI PURY-HP72TNU-A Data Book page 40

Air conditioning systems
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8. CAPACITY TABLES
3. Power input of outdoor unit
(1) Rated power input of outdoor unit
(2) Calculation of the average indoor temperature power input coefficient
Coefficient of the outdoor unit for indoor unit 1 (Outdoor temp. 99 °FD.B., Indoor temp. 68 °FW.B.)
Coefficient of the outdoor unit for indoor unit 2 (Outdoor temp. 99 °FD.B., Indoor temp. 64 °FW.B.)
Average indoor temp. power input coefficient (
= 1.09 × 36/(36 + 36) + 1.03 × 36/(36 + 36)
= 1.06
(3) No need to consider Coefficient of the partial load (CTi/CTo)
(4) Outdoor power input (PIo)
Maximum System Capacity (CTx) = Total Outdoor unit Capacity (CTo), so use the following formula
PIo = Outdoor unit Cooling Rated Power Input × Correction Coefficient of Indoor temperature
=4.55 × 1.06
= 4.82 kW
MEES19K180
n
c
)
×
= ∑ {c
(M
k
ave
k=1
n: Total number of the indoor units
k: Number of the indoor unit
c
: Outdoor unit power input coefficient of k indoor unit room temp.
k
M
: Number part of the k indoor unit model (e.g. P36 → 36)
k
4.55 kW (Nominal)
1.09
1.03
n
/ ∑ M
)}
k
k
k=1
-
Hyper Heating Inverter R2-Series
38
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