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

Kaysun Amazon Unitario Top DischargeEngineering Data Book
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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

Kaysun Amazon Unitario Top Discharge Engineering Data Book
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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 — — — —

Part 1 - General Information
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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.

Kaysun Amazon Unitario Top Discharge Engineering Data Book
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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

Part 1 - General Information
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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)

Kaysun Amazon Unitario Top Discharge Engineering Data Book
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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

Part 1 - General Information
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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