Project Name TFA
India ,Delhi
Date 2025 / 2 / 19
Calculation and Selection Result
A.Project Overview
Project Name TFA
Country India
City Delhi
Address
Client Name
Client Address
Reference
Revision
Project Date 2 / 19 / 2025
Altitude m
Cooling Condition: Indoor Dry-bulb 27.0 °C
Cooling Condition: Indoor Wet-bulb 19.0 °C
Cooling Condition: Outdoor Dry-bulb 39.6 °C
Cooling condition: Outdoor wet bulb 27.5 °C
Heating Condition: Indoor Dry-bulb 20.0 °C
Heating Condition: Outdoor Dry-bulb 7.0 °C
Heating Condition: Outdoor Wet-bulb 6.0 °C
B.Material List
Model Quantity Description
VVX-252WV2GN1 1 VX VRF(380V)
AHU-1 1 AHU Indoor Unit
AHU-2 1 AHU Indoor Unit
FQZHN-02D 1 Branch Joint
Ø22.2 6.0 m Copper Pipe
Ø15.9 22.0 m Copper Pipe
Ø9.53 28.0 m Copper Pipe
AHUKZ-01B 2 AHU Box
Project Name TFA
India ,Delhi
Date 2025 / 2 / 19
System1
1.1 Material List
Model Quantity Description
VVX-252WV2GN1 1 VX VRF(380V)
AHU-1 1 AHU Indoor Unit
AHU-2 1 AHU Indoor Unit
FQZHN-02D 1 Branch Joint
Ø22.2 6.0 m Copper Pipe
Ø15.9 22.0 m Copper Pipe
Ø9.53 28.0 m Copper Pipe
AHUKZ-01B 2 AHU Box
Project Name TFA
India ,Delhi
Date 2025 / 2 / 19
1.2 Indoor Unit Specifications
IDU Name Model Sound (dB(A)) Weight(kg) Dimension(mm) Power Supply Rated Power(W) MCA(A) MFA(A)
WxHxD
AHU-1 AHU Indoor Unit N/A N/A N/A N/A N/A N/A N/A
AHU-2 AHU Indoor Unit N/A N/A N/A N/A N/A N/A N/A
IDU Name Model Cooling AT Req.TC TC Req.SC SC Heating AT Req.HC HC Air flow ESP
(°C) (kW) (kW) (kW) (kW) (°C) (kW) (kW) (m^3/h) (Pa)
AHU-1 AHU Indoor Unit 27.0/47.0% 11.50 11.37 0.00 N/A 20.0 0.00 12.51 1700(High) N/A
AHU-2 AHU Indoor Unit 27.0/47.0% 11.50 11.37 0.00 N/A 20.0 0.00 12.51 1700(High) N/A
Project Name TFA
India ,Delhi
Date 2025 / 2 / 19
1.3 Outdoor Unit Specifications
Name Model Module Dimension(mm) Weight(kg) Base refr(kg) Add refr(kg) Power Supply MCA(A) MFA(A)
ODU1 VVX-252WV2GN1 VVX-252WV2GN1 990*1635*790 227.00 11.00 1.37 380-415-3-50 N/A N/A
Name Model CR% Temp(°C) CC(kW) Req CC(kW) Temp(H/RH)(°C) HC(kW) Req HC(kW)
ODU1 VVX-252WV2GN1 91.27 39.6 24.22 0.00 7.0/87% 26.95 0.00
Name Model EER COP Cooling Power(kW) Heating Power(kW)
ODU1 VVX-252WV2GN1 4.90 5.62 4.69 4.39
Req.TC: Required Total Cooling Capacity
Req.SC: Required Sensible Cooling Capacity
Req.HC: Required Total Heating Capacity
TC: Available Total Cooling Capacity
SC: Available Sensible Cooling Capacity
HC: Available Total Heating Capacity
AT: Ambient Temperature
ESP: External Static Pressure
Req.CC: Required Cooling Capacity
CC: Available Cooling Capacity
Project Name TFA
India ,Delhi
Date 2025 / 2 / 19
1.4 Piping and Mode Selection Devices
IDU Quantity 2/13
Combination Ratio 91.27%
Additional refrigerant charge 1.37 kg
= 24.00(9.53) * 0.057
Factory refrigerant charge 11.00 kg
Total refrigerant charge 12.37 kg
Total Pipe Length 30 m / 1000 m
Furthest Actual 21 m / 175 m
Furthest Equivalent 23 m / 200 m
Furthest Equivalent from First Branch to IDU 12 m / 40(90) m
Drop Height between IDU and IDU 0 m / 30 m
Drop height between IDU and ODU(Above 1 m / 110 m
ODU)
Available Capacity Cooling 22.75 kW
Available Capacity Heating 24.64 kW
Note:
1.The equivalent length of each branch joint is 0.5m.
Pipe
No. Length Gas Pipe Liquid Pipe
(1) 6.0 m Ø22.2 Ø9.53
(2) 4.0 m Ø15.9 Ø9.53
(3) 3.0 m N/A Ø9.53
(4) 12.0 m Ø15.9 Ø9.53
(5) 3.0 m N/A Ø9.53
Branch Joint
No. Load kW Model
(1) 23.00 FQZHN-02D
Project Name TFA
India ,Delhi
Date 2025 / 2 / 19
1.5 Piping Diagram
VRF 50Hz R410A
ODU:24.22/26.95 kW IDU Total:22.74/--/25.02 kW
VVX-252WV2GN1
Ø15.9(Connect to IU) (1) 11.50 kW(11.37 kW)
(1)
Ø22.2,Ø9.53 Ø9.53 Ø9.53
(1)6.0 m,3 (2)4.0 m,0 (3)3.0 m,0 AHU-1
FQZHN-02D AHUKZ-01B
Ø15.9(Connect to IU) (2) 11.50 kW(11.37 kW)
Ø9.53 Ø9.53
(4)12.0 m,0 (5)3.0 m,0 AHU-2
AHUKZ-01B
The piping size may be different with the actual situation because of the software's illustration limitation, please confirm the
piping size according to the installation manual before installation.
Project Name TFA
India ,Delhi
Date 2025 / 2 / 19
1.6 Wiring Diagram
ODU1 L1,L2,L3 380-415-3-50
1
3-core Cables PQE
2
PQE
The wiring diagram may be different with the actual situation because of software's illustration limitation, please confirm the wiring
diagram according to the installation manual before installation.
