Mitsubishi Electric CITY MULTI PURY-HP72TNU-A Data Book page 41

8. CAPACITY TABLES
<Heating>
(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. 35.6 °FW.B., Indoor temp. 77 °FD.B.)
Coefficient of the outdoor unit for indoor unit 2 (Outdoor temp. 35.6 °FW.B., Indoor temp. 77 °FD.B.)
Average indoor temp. power input coefficient (
= 0.8 × 36/(36 + 36) + 0.8 × 36/(36 + 36)
= 0.80
(3) Coefficient of the partial load (CTi/CTo)
(4) Outdoor power input (PIo)
Maximum System Capacity (CTx) = Total Indoor unit Capacity (CTi), so use the following formula
PIo = Outdoor unit Heating Rated Power Input × Correction Coefficient of Indoor temperature × (CTi/CTo)
= 5.48 × 0.8 × 0.92
= 4.03 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
5.48 kW (Nominal)
0.80
0.80
n
/ ∑ M )}
k k
k=1
0.92
Hyper Heating Inverter R2-Series
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