Overview
A Direct Expansion (DX) Coil integrated into an air handling unit is a system where the coil contains refrigerant that directly cools (or heats) the air as it passes over it. Unlike chilled water systems that use a water loop, a DX coil utilizes a refrigerant cycle to absorb heat directly from the air. This design simplifies the overall system by eliminating the need for separate water-based components, making it particularly suitable for small to medium load applications.
|
performance |
Air volume |
Residual Pressure |
Cooling volume ( K W ) |
Heat volume ( K W ) |
Water volume(T/h) |
Water reistance(KPa) |
power |
Noice |
Weight |
||||
|
Return Air |
Fresh Air |
Return Air |
Fresh Air |
Return Air |
Fresh Air |
Return Air |
Fresh Air |
||||||
|
BFP-20W/L |
2000 |
200 |
11.2 |
22.5 |
19.1 |
28.00 |
1.9 |
3.9 |
3.5 |
4.2 |
0.32 |
55 |
140/160 |
|
BFP-20XW/L |
160 |
13.9 |
29.7 |
25.7 |
32.67 |
2.4 |
5.1 |
4.5 |
5.6 |
160/190 |
|||
|
BFP-30W/L |
3000 |
260 |
16.8 |
33.8 |
28.6 |
42.00 |
2.9 |
5.8 |
4.5 |
6.4 |
0.55 |
56 |
160/180 |
|
BFP-30XW/L |
220 |
20.8 |
44.5 |
38.5 |
49.00 |
3.6 |
7.7 |
5.3 |
8.5 |
180/210 |
|||
|
BFP-40W/L |
4000 |
340 |
22.4 |
45.1 |
38.1 |
56.00 |
3.9 |
7.7 |
4.6 |
6.7 |
0.75 |
58 |
195/220 |
|
BFP-40XW/L |
300 |
27.7 |
59.3 |
51.3 |
64.33 |
4.8 |
10.2 |
6.5 |
12.4 |
225/255 |
|||
|
BFP-45W/L |
4500 |
320 |
25.2 |
50.7 |
42.9 |
63.00 |
4.3 |
8.7 |
5.2 |
8.6 |
0.75 |
58 |
205/220 |
|
BED-45XW/ |
280 |
31.2 |
66.8 |
57.8 |
73.50 |
5.4 |
11.5 |
7.4 |
15.4 |
215/235 |
|||
|
BFP-50W/L |
5000 |
500 |
28.0 |
56.3 |
47.7 |
70.00 |
4.8 |
9.7 |
6.8 |
10.7 |
1.1 |
59 |
220/235 |
|
BFP-50XW/L |
460 |
34.7 |
74.2 |
64.2 |
81.67 |
6.0 |
12.8 |
8.1 |
19.5 |
230/255 |
|||
|
BFP-55W/L |
5500 |
500 |
30.8 |
62.0 |
52.4 |
77.00 |
5.3 |
10.7 |
6.5 |
12.7 |
1.5 |
59 |
238/256 |
|
BFP-55XW/L |
460 |
38.1 |
81.6 |
70.6 |
89.83 |
6.6 |
14.0 |
9.5 |
20.3 |
256/286 |
|||
|
BFP-60W/L |
6000 |
500 |
33.6 |
67.6 |
57.2 |
84.00 |
5.8 |
11.6 |
7.4 |
14.8 |
1.5 |
60 |
258/285 |
|
BFP-60XW/L |
460 |
41.6 |
89.0 |
77.0 |
98.00 |
7.2 |
15.3 |
11.3 |
28.2 |
285/306 |
|||
|
BFP-70W/L |
7000 |
500 |
39.2 |
78.9 |
66.7 |
98.00 |
6.7 |
13.6 |
8.5 |
16.5 |
1.8 |
61 |
282/312 |
|
BFP-70XW/L |
460 |
48.5 |
103.8 |
89.8 |
114.33 |
8.3 |
17.9 |
14.6 |
33.3 |
315/346 |
|||
|
BFP-80W/L |
8000 |
600 |
44.8 |
90.1 |
76.3 |
112.00 |
7.7 |
15.5 |
9.06 |
18.4 |
2.2 |
62 |
310/345 |
|
BFP-80XW/L |
560 |
55.5 |
118.7 |
102.7 |
130.67 |
9.5 |
20.4 |
16.4 |
39.6 |
338/369 |
|||
|
BFP-90W/L |
9000 |
600 |
50.4 |
101.4 |
85.8 |
126.00 |
8.7 |
17.4 |
10.6 |
22.4 |
2.2 |
63 |
322/358 |
|
BFP-90XW/L |
560 |
62.4 |
133.5 |
115.5 |
147.00 |
10.7 |
23.0 |
18.2 |
43.6 |
345/369 |
|||
|
BFP-100W/L |
10000 |
600 |
56.0 |
112.7 |
95.3 |
140.00 |
9.6 |
19.4 |
12.4 |
26.7 |
3.0 |
64 |
336/368 |
|
BFP-100XW/L |
560 |
69.3 |
148.3 |
128.3 |
163.33 |
11.9 |
25.5 |
21.6 |
48.6 |
356/389 |
|||
|
BFP-120W/L |
12000 |
600 |
67.2 |
135.2 |
114.4 |
168.00 |
11.6 |
23.2 |
18.7 |
40.1 |
1.8×2 |
64 |
438/475 |
|
BFP-120XW/L |
560 |
83.2 |
178.0 |
154.0 |
196.00 |
14.3 |
30.6 |
28.4 |
53.2 |
476/506 |
|||
|
BFP-150W/L |
15000 |
600 |
84.0 |
169.0 |
143.0 |
210.00 |
14.4 |
29.1 |
22.6 |
42.6 |
2.2×2 |
64 |
520/550 |
|
BFP-150XW/L |
560 |
104.0 |
222.5 |
192.5 |
245.00 |
17.9 |
38.3 |
35.7 |
73.5 |
562/598 |
|||
|
BFP-180W/L |
18000 |
600 |
1008 |
202.8 |
171.6 |
252.00 |
17.3 |
34.9 |
25.1 |
44.2 |
3.0×2 |
65 |
556/581 |
|
BFP-180XW/L |
560 |
124.8 |
267.0 |
231.0 |
294.00 |
21.5 |
45.9 |
47.6 |
78.2 |
585/615 |
|||
|
BFP-200W/L |
20000 |
600 |
112.0 |
225.3 |
190.7 |
280.00 |
19.3 |
38.7 |
28.7 |
46.5 |
3.0×2 |
65 |
576/595 |
|
BFP-200XW/L |
560 |
138.7 |
296.7 |
256.7 |
326.67 |
23.8 |
51.0 |
51.6 |
82.6 |
610/638 |
|||
|
BFP-230W/L |
23000 |
650 |
1288 |
259.1 |
219.3 |
322.00 |
22.1 |
44.6 |
29.7 |
48.7 |
4.0×2 |
68 |
612/635 |
|
BFP-230XW/L |
600 |
159.5 |
341.2 |
295.2 |
375.67 |
27.4 |
58.7 |
51.6 |
85.2 |
639/672 |
|||
|
BFP-250W/L |
25000 |
650 |
140.0 |
281.7 |
238.3 |
350.00 |
24.1 |
48.4 |
26.5 |
49.6 |
4.0×2 |
69 |
652/685 |
|
BFP-250XW/L |
600 |
173.3 |
370.8 |
320.8 |
408.33 |
29.8 |
63.8 |
50.2 |
82.6 |
710/732 |
|||
|
BFP-280W/L |
28000 |
650 |
156.8 |
315.5 |
266.9 |
39200 |
27.0 |
54.2 |
32.6 |
43.6 |
5.5×2 |
70 |
679/712 |
|
BFP-280XW/L |
600 |
194.1 |
415.3 |
359.3 |
457.33 |
33.4 |
71.4 |
54.5 |
92.5 |
729/758 |
|||
|
BFP-300W/L |
30000 |
650 |
168.0 |
338.0 |
286.0 |
420.00 |
28.9 |
58.1 |
36.9 |
52.3 |
5.5×2 |
70 |
712/735 |
|
BFP-300XW/L |
600 |
208.0 |
445.0 |
385.0 |
490.00 |
35.8 |
76.5 |
57.2 |
91.2 |
765/796 |
|||
|
BFP-350W/L |
35000 |
650 |
196.0 |
394.3 |
333.7 |
490.00 |
33.7 |
67.8 |
38.7 |
59.4 |
7.5×2 |
72 |
826/998 |
|
BFP-350XW/L |
600 |
242.7 |
519.2 |
449.2 |
571.67 |
41.7 |
89.3 |
58.7 |
96.2 |
910/1110 |
|||
Return Air Conditions:
- Cooling: Inlet air dry-bulb temperature is 27°C, wet-bulb temperature is 19.5°C; inlet water temperature is 7°C with a water temperature difference of 5°C between inlet and outlet.
- Heating: Inlet air dry-bulb temperature is 15°C; hot water inlet temperature is 60°C.
Fresh Air Conditions:
- Cooling: Inlet air dry-bulb temperature is 34°C, wet-bulb temperature is 28°C; inlet water temperature is 7°C with a water temperature difference of 5°C between inlet and outlet.
- Heating: Inlet air dry-bulb temperature is -4°C; hot water inlet temperature is 60°C.
Key Features
●Direct Refrigerant Cooling:
The DX coil operates by circulating refrigerant directly through the coil. In cooling mode, the refrigerant evaporates inside the coil, absorbing heat from the air; in heating mode, the cycle reverses to deliver warmth.
●Compact and Integrated Design:
With no need for extensive water piping, pumps, or chillers, the system has a smaller footprint. This compact design is advantageous in installations with limited mechanical space or in retrofit projects.
●Simplified Installation and Maintenance:
Fewer components mean reduced complexity during installation and easier maintenance. There is no need to manage water quality or deal with plumbing issues associated with chilled water systems.
●Zoned Control Capabilities:
DX coil AHUs can be designed to serve individual zones, providing independent temperature control that enhances occupant comfort and optimizes energy usage.
●Rapid Response:
Direct expansion systems typically respond quickly to changes in cooling or heating load, ensuring efficient and consistent temperature control.
Applications
●Commercial Buildings:
Suitable for small to medium offices, retail spaces, and restaurants where centralized chilled water systems may be excessive for the cooling load.
●Residential Complexes:
Often used in multi-family buildings or high-rise condominiums where localized, efficient cooling is required without extensive mechanical infrastructure.
●Mixed-Use Developments:
Ideal for buildings with varied occupancy patterns, enabling independent control of different zones based on specific cooling or heating needs.
FAQ
Q: Can products be produced according to customer requirements?
Q: Is it allowed to visit the factory?
Q: Are you looking for agents?
Q: How do you resolve issues if there are malfunctions during the use of the equipment?
Q: What software do you use for your product drawings?
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