Sanyo SPW-C0705DZH8 - Indoor Unit Changes

Outdoor unit
(indoor unit 1) (indoor unit 2) (indoor unit 3) (indoor unit 4)
Selected model
Type 230
Maximum load
(cooling/heating) (kW)
Rated capacity
(cooling/heating) (kW)
(5) Corrected capacity
(cooling/heating) (kW)
(cooling/heating) (kW)
Total corrected capacity of all indoor units (cooling/heating) = 50.24/57.4
• For both cooling and heating in all rooms, actual capacity is now greater than or equal to the maximum
load. Selection is completed.
The indoor unit in room 4, where the corrected indoor unit capacity is less than the maximum load, is
increased by one rank.
Indoor unit changes
Type 60 Type 48 Type 25Type 48
16.0 / 18.073.0 / 81.5
15.0 / 16.5 13.0 / 14.5 13.0 / 14.5
5.5 / 6.2
14.0 / 16.0 14.0 / 16.0
16.0 / 18.0
16.00 / 18.00
16.00 / 18.00
73.0 / 81.5
59.36 / 58.45
1.00 / 1.00
1.019 / 0.941 0.934 / 0.964
0.798 / 0.856 1.00 / 1.001.105 / 1.070
1.032 / 1.031 1.008 / 1.014 0.958 / 0.981 0.934 / 0.964
1.03 / 1.03 1.01 / 1.01
1.00 / 1.00
0.96 / 0.98 0.93 / 0.96
1.026 / 1.0181.079 / 1.052
0.934 / 0.964 0.934 / 0.964 0.934 / 0.964
14.0 / 16.0
14.00 / 16.00
13.42 / 15.69 6.82 / 7.71
14.00 / 16.00
13.42 / 15.69 6.82 / 7.71
14.0 / 16.0
7.30 / 8.00
7.30 / 8.00
59.36 / 58.45
16.00 / 18.00
14.00 / 16.00
13.42 / 15.69 6.82 / 7.71
16.00 / 18.00
14.00 / 16.00
13.42 / 15.69 6.82 / 7.71
(2) Calculate the final selection results according to the capacity calculation procedure.
[From calculation of the correction coefficient to calculation of actual capacity] (Cooling/heating)
Outdoor unit
(indoor unit 1) (indoor unit 2) (indoor unit 3) (indoor unit 4)
Rated capacity (kW)
(1) Model
Correction coefficient
(4) Frosting/defrosting
Correction coefficient
applied to indoor unit *1
(5) Corrected capacity (kW)
*2
(6) Correction coefficient
for corrected capacity
ratio
0.89
The actual capacity is calculated as shown below.
Cooling: Ruc = (16.0 + 14.0 + 13.42 + 6.82) / 59.36 = 0.846 < 1
Therefore,
Actual cooling capacity of each indoor unit = Corrected cooling capacity of each indoor unit
(In other words, the correction coefficient [6] for the corrected capacity ratio is 1.)
Heating: Ruh = (18.0 + 16.0 + 15.69 + 7.71) / 58.45 = 0.982 < 1
Therefore,
Actual heating capacity of each indoor unit = Corrected heating capacity of each indoor unit × (0.1 × Ruh + 0.9) / Ruh
(In other words, the correction coefficient (6) for the corrected capacity ratio is (0.1 × Ruh + 0.9) / Ruh.)
Ruc = 50.24/59.36 = 0.846 < 1 Ruh = 57.4/58.45 = 0.982 < 1
*1: This varies depending on the values of (2) and (2) × (Distribution ratio in (3)).
*2: Corrected outdoor unit capacity = Rated outdoor unit capacity × (1) × (2) × (3) × (4)
Room 1 Room 2 Room 3 Room 4
(7) Actual capacity
(2) Temp. condition
(3) Tubing length,
elevation difference
Result of (2) × (3)
(7) Actual capacity (kW)
Room 1 Room 2 Room 3 Room 4
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Design of 3-WAY ECO-i SYSTEM
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2. System Design
TD831143-00W-3WAY.indb19TD831143-00W-3WAY.indb19 2008/12/0116:15:432008/12/0116:15:43