Kaysun Amazon Unitario Top Discharge Product guide

Amazon Unitario Top Discharge
ENGINEERING DATA BOOK
K2UF-280 DN4S
K2UF-335 DN4S
K2UF-400 DN4S
K2UF-450 DN4S
K2UF-500 DN4S
K2UF-560 DN4S
K2UF-615 DN4S
K2UF-670 DN4S
K2UF-730 DN4S
K2UF-785 DN4S
K2UF-850 DN4S
K2UF-900 DN4S
Thank you very much for purchasing our air conditioner.
Before using your air conditioner, please read this manual carefully and keep it for future
reference.

CONTENTS
Amazon Unitario Top Discharge
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CONTENTS
Part 1 General Informaon............................................................................ 3
Part 2 Outdoor Unit Engineering Data ..........................................................15
Part 3 System Design and Installaon .........................................................134

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Part 1 - General Information
Amazon Unitario Top Discharge
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Part 1
General Information
1  IndoorandOutdoorUnitCapacies ......................................................... 4
2 External Appearance ................................................................................ 6
3  CombinaonRao ................................................................................... 8
4 SeleconProcedure ................................................................................. 9

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1 IndoorandOutdoorUnitCapacies
1.1 IndoorUnits
1.1.1 Standardindoorunits
Table 1-1.1: Standard indoor unit abbreviaon codes
Abbreviation
code Type Abbreviation code Type
KCOF One-way Cassette KAYF Wall-mounted
KCIF Compact Four-way Cassette KPCF Ceiling & Floor
KCIBF Four-way Cassette KS(E)F Floor Standing
KPDF Medium Static Pressure Duct KSDF Console
KPDHF High Static Pressure Duct
Table 1-1.2: Standard indoor unit capacity range
Capacity Capacity
index KCOF KCIF KCIBF KPDF KPDHF KAYF KPCF KS(E)F KSDF
kW HP
2.2 0.8 22 22 22 — 22 — 22 — — —
2.8 1 28 — 28 — 28 — 28 — — 28
3.6 1.25 36 36 36 — 36 — 36 — — 36
4.5 1.6 45 — 45 — 45 — 45 — — 45
5.6 2 56 — — 56 56 — 56 56 56 —
7.1 2.5 71 71 — 71 71 71 — — 71 —
8.0 3 80 — — 80 80 — 80 — — —
9.0 3.2 90 — — — 90 90 — 90 — —
10.0 3.6 100 — — 100 — — — — — —
11.2 4 112 — — 112 112 112 — — — —
14.0 5 140 — — 140 140 140 — 140 — —
16.0 6 160 — — — — 160 — — — —
20.0 7 200 — — — — 200 — — — —
25.0 9 250 — — — — 250 — — — —
28.0 10 280 — — — — 280 — — — —
40.0 14 400 — — — — 400 — — — —
45.0 16 450 — — — — 450 — — — —
56.0 20 560 — — — — 560 — — — —

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1.2 OutdoorUnits
Table 1-1.5: Outdoor unit capacity range
Capacity Model Name
10HP K2UF-280 DN4S
12HP K2UF-335 DN4S
14HP K2UF-400 DN4S
16HP K2UF-450 DN4S
18HP K2UF-500 DN4S
20HP K2UF-560 DN4S
22HP K2UF-615 DN4S
24HP K2UF-670 DN4S
26HP K2UF-730 DN4S
28HP K2UF-785 DN4S
30HP K2UF-850 DN4S
32HP K2UF-900 DN4S
Notes:
1. Amazon Unitario Top Discharge Individual Series (Amazon Unitario Top Discharge Series) outdoor units could not be combined.

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2 External Appearance
2.1 IndoorUnits
2.1.1 Standardindoorunits
Table 1-2.1: Standard indoor unit appearance
One-way Cassee Compact Four-way Cassette
KCOF KCIF
Four-way Cassette Medium Static Pressure Duct
KCIF KPDF
High Static Pressure Duct Wall-mounted
KPDHF KAYF
Ceiling & Floor Floor Standing
KPCF KS(E)F
Console
KSDF

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2.2 OutdoorUnits
Table 1-2.4: Outdoor unit appearance
10/12HP
(withsinglefan)
14/16/18HP
(withsinglefan)
20/22HP
(withdualfans)
24/26/28/30/32HP
(withdualfans)

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3 CombinaonRao
Combinaon rao =
Sum of capacity indexes of the indoor units
Capacity index of the outdoor unit
Table 1-4.1: Indoor and outdoor unit combinaon rao limitaons
Type Minimum
combinaonrao
Maximumcombinaonrao
Standardindoorunitsonly
Amazon Unitario Top Discharge Series outdoor
units 50% 150%
Notes:
1. When fresh air processing units are installed together with standard indoor units, the total capacity of the fresh air processing units must not exceed 30%
of the capacity of the outdoor unit and the combination ratio must not exceed 100%.
Table 1-4.2: Combinaons of Indoor and outdoor units
Outdoor unit capacitySumofcapacityindexesof
connectedindoorunits
(standardindoorunitsonly)
Maximumnumberofconnectedindoorunits
kW HP Capacity index
28.0 10 280 140 to 3420 16
33.5 12 335 167.5 to 502.5 20
40.0 14 400 200 to 600 23
45.0 16 450 225 to 675 26
50.0 18 500 250 to 750 29
56.0 20 560 280 to 840 33
59.0 22 590 295 to 885 36
67.0 24 670 335 to 1005 39
73.0 26 730 365 to 1095 43
75.5 28 755 377.5 to 1132.5 46
85.0 30 850 425 to 1275 50
90.0 32 900 450 to 1350 53

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4 SeleconProcedure
4.1 Procedure
Step1:Establishdesigncondions
Step2:Selectindoorunits
Step 3: Select outdoor unit
Notes:
1. If the indoor design temperature falls between two temperatures listed in the indoor unit’s capacity table, calculate the corrected capacity by interpolation.
If the indoor unit selection is to be based on total heat load and sensible heat load, select indoor units which satisfy not only the total heat load
requirements of each room but also the sensible heat load requirements of each room. As with total heat capacity, the sensible heat capacity of indoor
units should be corrected for indoor temperature, interpolating where necessary. For the indoor unit capacity tables, refer to the indoor unit technical
manuals.
Design temperature and humidity (indoor and outdoor)
Required heat load of each room
System peak load
Piping length, level differences
Indoor unit specifications (type and quantity)
Select indoor unit models ensuring that:
Indoor unit capacity corrected for indoor air temperature WB1 ≥ Required heat load ×Indoor unit safety factor
Decide indoor unit safety factor
Determine required total heat load on the outdoor unit
Provisionally select outdoor unit capacity based on combination ratio limitations
Confirm that the number of indoor units connected to the outdoor unit is within limitation
Is correctedoutdoor unit capacity ≥ Required total heat load on outdoor unit?
VRF system selection is complete
No
Yes
Correct cooling and heating capacities of the outdoor unit for the following items:
Outdoor air temperature / Indoor air temperature WB / Combination ratio / Piping length, level difference /
Piping heat loss / Frost accumulation (for heating capacity only)
Use the sum of the peak load of each room Use the system peak load

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4.2 Example
The following is a selecon example based on total heat load for cooling.
Figure 1-5.1: Room plan
Room A Room H Room G Room F
Room B Room E
Room C Room D
Step1:Establishdesigncondions
¨Indoor air temperature 25°C DB, 18°C WB; outdoor air temperature 33°C DB.
¨Determine peak load of each room and system peak load. As shown in Table 1-5.1, the system peak load is 50.7kW.
Table 1-5.1: Required heat load of each room (kW)
Time RoomA RoomB RoomC RoomD RoomE RoomF RoomG RoomH Total
9:00 4.8 4.8 3.0 3.0 9.1 9.0 2.9 2.9 39.5
12:00 6.6 7.1 5.1 5.1 7.4 6.8 4.0 4.0 46.1
14:00 9.0 9.4 4.9 4.9 7.3 6.8 4.2 4.2 50.7
16:00 10.6 10.7 3.9 3.9 6.3 6.2 3.8 3.8 49.2
¨The maximum piping lengths and level differences in this example are as given in Figure 1-5.2.
Figure 1-5.2: System diagram
¨Indoor unit type for all rooms: Medium Static Pressure Duct (KPDF).
Step2:Selectindoorunits
¨In this example, a safety factor is not used (i.e. the safety factor is 1).
¨Select indoor unit models using the medium static pressure duct cooling capacity table. Each indoor unit’s corrected
capacity needs to be greater than or equal to the peak load of the relevant room. The selected indoor units are shown
in Table 1-5.3.
Outdoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Equivalent length of piping 60mLevel
difference
40m

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Table 1-5.2: Extract from medium stac pressure duct (KPDF) cooling capacity table
Model Capacity
index
Indoor air temperature
14°C WB 16°C WB 18°C WB 19°C WB 20°C WB 22°C WB 24°C WB
20°C DB 23°C DB 26°C DB 27°C DB 28°C DB 30°C DB 32°C DB
TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC
KPDF
22 1.5 1.4 1.8 1.5 2.1 1.6 2.2 1.6 2.3 1.7 2.4 1.5 2.4 1.5
28 1.9 1.7 2.3 1.9 2.6 2.1 2.8 2.1 3.0 2.1 3.1 2.0 3.1 1.9
36 2.5 2.1 2.9 2.3 3.4 2.5 3.6 2.6 3.8 2.7 4.2 2.8 3.9 2.3
45 3.1 2.6 3.7 2.8 4.2 3.1 4.5 3.2 4.8 3.2 4.9 3.1 5.1 2.9
56 3.9 3.0 4.6 3.3 5.3 3.6 5.6 3.7 5.9 3.8 6.2 3.7 6.2 3.4
71 4.9 3.9 5.8 4.3 6.7 4.7 7.1 4.9 7.5 4.8 7.8 4.6 7.8 4.3
80 5.5 4.4 6.6 4.9 7.5 5.3 8.0 5.5 8.4 5.5 8.8 5.2 8.8 4.8
90 6.2 5.3 7.3 5.8 8.4 6.3 9.0 6.4 9.6 6.5 9.9 6.1 9.9 5.7
112 7.7 6.4 9.1 7.1 10.5 7.7 11.2 7.8 11.9 8.1 12.5 7.8 12.5 7.4
140 9.7 7.8 11.3 8.6 13.2 9.6 14.0 9.8 14.8 9.8 15.7 9.7 15.4 8.8
Abbreviaons:
TC: Total capacity (kW); SHC: Sensible heat capacity (kW)
Table 1-5.3: Selected indoor units
RoomA RoomB RoomC RoomD
Peak heat load (kW) 10.6 10.7 5.1 5.1
Selected indoor unit KPDF-140 DN4.0 KPDF-140 DN4.0 KPDF-56 DN4.0 KPDF-56 DN4.0
Corrected TC (kW) 13.2 13.2 5.3 5.3
RoomE RoomF RoomG RoomH
Peak heat load (kW) 9.1 9.0 4.2 4.2
Selected indoor unit KPDF-112 DN4.0 KPDF-112 DN4.0 KPDF-45 DN4.0 KPDF-45 DN4.0
Corrected TC (kW) 10.5 10.5 4.2 4.2
Step 3: Select outdoor unit
¨Determine the required total heat load from the indoor units to the outdoor unit based on either the sum of the
peak loads of each room or the system peak load. In this example, it is determined based on the system peak load.
Therefore, the required heat load is 50.7kW.
¨Provisionally select an outdoor unit using the sum of the capacity indexes (CIs) of the selected indoor units (as shown
in Table 1-5.4), ensuring that the combination ratio is between 50% and 130%. Refer to Table 1-5.5. As the sum of CIs
of the indoor units is 706, outdoor units from 20HP to 32HP are potentially suitable. Start from the smallest, which is
the 20HP unit.
Table 1-5.4: Sum of indoor unit capacity indexes
Model Capacity Index No.ofunits
KPDF-140 DN4.0 140 2
KPDF-112 DN4.0 112 2
KPDF-56 DN4.0 56 2
KPDF-45 DN4.0 45 2
SumofCIs 706

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Table 1-5.5: Extract from Table 1-5.2 Combinaons of Indoor and outdoor units
Outdoor unit capacity Sumofcapacityindexesof
connectedindoorunits(standard
indoorunitsonly)
Maximum number of
connectedindoorunitskW HP Capacity
index
50.0 18 500 250 to 750 29
56.0 20 560 280 to 840 33
59.0 22 590 295 to 885 36
67.0 24 670 335 to 1005 39
73.0 26 730 365 to 1095 43
75.5 28 755 377.5 to 1132.5 46
85.0 30 850 425 to 1275 50
90.0 32 900 450 to 1350 53
¨The number of connected indoor units is 8 and the maximum number of connected indoor units on the 20HP outdoor
unit is 33, so the number of connected indoor units is within the limitation.
¨Calculate the corrected capacity of the outdoor unit:
a) The sum of the indoor unit CIs is 706 and the CI of the 20HP outdoor unit (K2UF-560 DN4S-E) is 560, so the
combination ratio is 706 / 560 = 126%.
b) Using the outdoor unit’s cooling capacity table, interpolate to obtain the capacity (“B”) corrected for outdoor air
temperature, indoor air temperature, and combination ratio. Refer to Tables 1-5.6 and 1-5.7.
Table 1-5.6: Extract from Table 2-8.7 K2UF-560 DN4S-E cool-
ing capacity
Table 1-5.7: Cooling capacity calculated by interpolation
CR
Outdoor air
temp.
(°C DB)
Indoor air temp.
(°C DB / °C WB)
CR
Outdoor air
temp.
(°C DB)
Indoor air temp.
(°C DB / °C WB)
25.8 / 18.0 25.8 / 18.0
TC PI TC PI
kW kW kW kW
130%
31 61.3 14.33
130%
33 60.4 14.88 33 60.4 14.88
35 59.5 15.46 B = 601
120%
31 60.2 13.88
120%
33 59.3 14.44 33 59.3 14.44
35 58.4 15.00
Notes:
1. 59.3 + (60.4 – 59.3) × (126 – 120) / (130 – 120) = 60.

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c) Find the correction factor for piping length and level difference (“K1”)
Figure 1-5.3: Amazon Unitario Top Discharge rate of change in cooling capacity
90
-90
-100
-110
80
-80
70
-70
60
-60
50
-50
40
-40
30
-30
20
-20
10
10
1.0
0.97
0.95
0.92
0.90
0.87
0.85
0.84
0.81 0.80 0.78 0.78 0.77 0.76
1.0
0.97
0.95
0.92
0.90
0.87
0.85
0.84
0.81 0.80 0.78 0.78 0.77
20 30 40 50 60 70 80
K1 = 0.898
90 100 110 120 130 140 150 160 170 180 190 200
-10
0
0
Notes:
1. The horizontal axis shows equivalent length of piping between farthest indoor unit and first
outdoor branch joint; the vertical axis shows the largest level difference between indoor
unit and outdoor unit. For level differences, positive values indicate that the outdoor unit
is above the indoor unit, negative values indicate that the outdoor unit is below the indoor
unit.
d) Calculate the corrected capacity of K2UF-560 DN4S-E (“C”) by using K1:
C = B × K1 = 60 × 0.898 = 53.8kW
¨The corrected capacity 53.8kW is larger than required total heat load 50.7kW, so selection is complete. (In the event
that the corrected capacity is lower than the required total heat load, Step 3 should be repeated from the point where
the outdoor unit capacity is provisionally selected.)

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Part 2 - Outdoor Unit Engineering Data
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Part 2
Outdoor Unit
Engineering Data
1 Specicaons .......................................................................................16
2 Dimensions ..........................................................................................19
3 InstallaonSpaceRequirements ..........................................................23
4 PipingDiagrams ...................................................................................24
5 WiringDiagrams...................................................................................28
6 ElectricalCharacteriscs.......................................................................30
7 FunconalComponentsandSafetyDevices .........................................31
8 CapacityTables ....................................................................................32
9 OperangLimits.................................................................................130
10 SoundLevels ......................................................................................131
11 Accessories ........................................................................................133

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1 Specicaons
10-14HP
Table 2-1.1: 10-14HP specicaons
HP 10 12 14
Model name K2UF-280 DN4S K2UF-335 DN4S K2UF-400 DN4S
Power supply V/Ph/Hz 380-415/3/50
Cooling1
Capacity kW 28.0 33.5 40.0
Power input kW 10.68 13.55 15.37
EER 2.62 2.47 2.60
Heang2(rated)
Capacity kW 28.0 33.5 40.0
Power input kW 7.38 9.78 11.3
COP 3.79 3.43 3.54
Heang2(max)
Capacity kW 31.5 37.5 45.0
Power input kW 8.83 11.72 13.63
COP 3.57 3.20 3.30
SEER 6.44 6.07 6.31
ηs,c %254.4 239.8 249.3
SCOP 4.10 4.22 3.81
ηs,h %160.9 165.7 149.5
Connected
indoor unit
Total capacity 50-150% of outdoor unit capacity
Maximum quanty 16 20 23
Compressor
Type DC inverter
Quanty 1
Oil type FAmazon Unitario Top Discharge8H
Start-up method So start
Fan
Type Propeller
Motor type DC
Quanty 1
Motor output kW 0.56 0.56 0.92
Airow rate m3/h 11000 11000 13000
Drive type Direct
Refrigerant Type R410A
Factory charge kg 11 11 13
Pipe
connecons3
Liquid pipe mm Φ12.7 Φ15.9 Φ15.9
Gas pipe mm Φ25.4 Φ28.6 Φ31.8
Sound pressure level4dB(A) 58 60 62
Sound power level dB(A) 84 85 86
Net dimensions (W×H×D) mm 990×1635×790 1340×1635×850
Packed dimensions (W×H×D) mm 1090×1805×860 1405×1805×910
Net weight kg 227 277
Gross weight kg 242 304
Ambient temp.
operaon range
Cooling oC-5 ~ 48
Heang oC-23 ~ 24
Notes:
1. Indoor air temperature 27°C DB, 19°C WB; outdoor air temperature 35°C DB; equivalent refrigerant piping length 7.5m with zero level difference.
2. Indoor air temperature 20°C DB; outdoor air temperature 7°C DB, 6°C WB; equivalent refrigerant piping length 7.5m with zero level difference.
3. Diameters given are those of the unit’s stop valve.
4. Sound pressure level is measured at a position 1m in front of the unit and 1.3m above the floor in a semi-anechoic chamber.

Part 2 - Outdoor Unit Engineering Data
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16-22HP
Table 2-1.2: 16-22HP specicaons
HP 16 18 20 22
Model name K2UF-450 DN4S K2UF-500 DN4S K2UF-560 DN4S K2UF-615 DN4S
Power supply V/Ph/Hz 380-415/3/50
Cooling1
Capacity kW 45.0 50.0 56.0 59.0
Power input kW 20.96 28.09 34.22 35.41
EER 2.15 1.78 1.64 1.67
Heang2(rated)
Capacity kW 45.0 50.0 56.0 59.0
Power input kW 13.78 14.92 15.98 19.57
COP 3.27 3.27 3.35 3.50 3.01
Heang2(max)
Capacity kW 50.0 56.0 63.0 66.2
Power input kW 16.58 18.02 19.21 23.22
COP 3.02 3.11 3.28 2.85
SEER 5.58 5.43 5.38 5.07
ηs,c %220.3 214.2 212.2 199.9
SCOP 4.06 3.95 4.31 4.42
ηs,h %159.4 155.0 169.5 173.7
Connected
indoor unit
Total capacity 50-150% of outdoor unit capacity
Maximum quanty 26 29 33 36
Compressor
Type DC inverter
Quanty 1 2
Oil type FAmazon Unitario Top Discharge8H
Start-up method So start
Fan
Type Propeller
Motor type DC
Quanty 1 2
Motor output kW 0.92 0.92 0.56×2 0.56×2
Airow rate m3/h 13000 13000 17000 17000
Drive type Direct
Refrigerant
Type R410A
Factory charge kg 13 13 17 17
Pipe
connecons3
Liquid pipe mm Φ15.9 Φ19.1
Gas pipe mm Φ31.8 Φ31.8
Sound pressure level4dB(A) 65 66
Sound power level dB(A) 86 91 89 89
Net dimensions (W×H×D) mm 1340×1635×850 1340×1635×825
Packed dimensions (W×H×D) mm 1405×1805×910
Net weight kg 277 295 344 344
Gross weight kg 304 322 364 364
Ambient temp.
operaon range
Cooling oC-5 ~ 48
Heang oC-23 ~ 24
Notes:
1. Indoor air temperature 27°C DB, 19°C WB; outdoor air temperature 35°C DB; equivalent refrigerant piping length 7.5m with zero level difference.
2. Indoor air temperature 20°C DB; outdoor air temperature 7°C DB, 6°C WB; equivalent refrigerant piping length 7.5m with zero level difference.
3. Diameters given are those of the unit’s stop valve.
4. Sound pressure level is measured at a position 1m in front of the unit and 1.3m above the floor in a semi-anechoic chamber.

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24-32HP
Table 2-1.3: 24-32HP specicaons
HP 24 26 28 30 32
Model name K2UF-670 DN4S K2UF-730 DN4S K2UF-785 DN4S K2UF-850 DN4S K2UF-900 DN4S
Power supply V/Ph/Hz 380-415/3/50
Cooling1
Capacity kW 67.0 73.0 75.50 85.00 85.00
Power input kW 36.71 34.63 37.27 44.88 44.88
EER 1.83 2.11 2.03 1.89 1.89
Heang2(rated)
Capacity kW 67.0 73.0 75.50 85.00 90.00
Power input kW 20.88 21.53 24.04 23 25.68
COP 3.21 3.39 3.14 3.70 3.50
Heang2(max)
Capacity kW 75.0 81.5 84.2 95.0 100.0
Power input kW 25.26 25.74 29.41 27.77 30.60
COP 2.97 3.17 2.86 3.42 3.27
SEER 5.37 5.77 5.43 5.15 5.15
ηs,c %211.8 227.9 214.2 202.9 202.9
SCOP 4.36 4.14 4.45 4.08 4.08
ηs,h %171.4 162.4 175.1 160.2 160.2
Connected indoor
unit
Total capacity 50-150% of outdoor unit capacity
Maximum quanty 39 43 46 50 53
Compressor
Type DC inverter
Quanty 2
Oil type FAmazon Unitario Top Discharge8H
Start-up method So start
Fan
Type Propeller
Motor type DC
Quanty 2
Motor output kW 0.92×2 0.92×2 0.92×2 0.92×2 0.92×2
Airow rate m3/h 25000 25000 25000 24000 24000
Drive type Direct
Refrigerant
Type R410A
Factory charge kg 22 22 22 25 25
Pipe connecons3Liquid pipe mm Φ19.1 Φ22.2 Φ22.2
Gas pipe mm Φ31.8 Φ31.8 Φ38.1
Sound pressure level4dB(A) 67 68
Sound power level dB(A) 89 93
Net dimensions (W×H×D) mm 1730×1830×850
Packed dimensions (W×H×D) mm 1800×2000×910
Net weight kg 407 429 475
Gross weight kg 430 452 507
Ambient temp.
operaon range
Cooling oC-5 ~ 48
Heang oC-23 ~ 24
Notes:
1. Indoor air temperature 27°C DB, 19°C WB; outdoor air temperature 35°C DB; equivalent refrigerant piping length 7.5m with zero level difference.
2. Indoor air temperature 20°C DB; outdoor air temperature 7°C DB, 6°C WB; equivalent refrigerant piping length 7.5m with zero level difference.
3. Diameters given are those of the unit’s stop valve.
4. Sound pressure level is measured at a position 1m in front of the unit and 1.3m above the floor in a semi-anechoic chamber.

Part 2 - Outdoor Unit Engineering Data
Amazon Unitario Top Discharge
19
2 Dimensions
10/12HP
Figure 2-2.1: 10/12 dimensions (unit: mm)
1635
990
790
R
77
63
50
Detail R
Table 2-2.1: 10/12HP connecon piping diameter (unit: mm)
Size 10HP 12HP
AΦ12.7 Φ15.9
BΦ25.4 Φ28.6