| Customization: | Available |
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| Material: | Metal |
| Blade Material: | Cast Iron |
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DC fan units is an important part of BTS environment control system, it's usually used in cooling when mains fail, or air-conditioner has fault. When the temp. difference between indoor temp. and outdoor temp. is big, using ventilation system to cool to save energy and last the use life of air-conditioner.
1. Structure improvement, smooth air flow, high efficiency
2. Install from inside, good anti-theft performance
3. Use DC 24V motor to drive eccentric wheel to open/close damper completely, canavoid unexpected lock
4. Changeable filter can be pulled easily, washable
5. Fan can be start by manual
6. Over-travel limit switch to detect damper position
7. Fans can be divided into 2 groups, work in tum or together depend on indoor temp.(optional, special function)
8. Fan work frequency can be detected (optional, special function), output alarm signalwhen fan has failure
9. Output fan alarm or damper broken signal (optional, special function)
| parareter | Unit | Value |
| Rating voltage | V | DC48 |
| Theory ventilation capability per fan | m³/h | 400 |
| Speed of fan | RPM | 3200 |
| Curent per fan | Amp | 0.4 |
| Power per fan | W | 19.2 |
| Use life per fan @ 40ºC | Hours | 50000 |
| Size per fan | mm | 172x150x51 |
| Work time of damper | number | ≥100.000 |
| Ventilation efficiency | % | ≥65 |
| Switch time for two groups of fan | Hours | 3 |
| Fan work together temp. | ºC | 43 or 48 (programmable) |
Following chart show the appearance of JTF2/TF2 fan unit, take 3 pcs of fan for example,from back. front and side to show it.
Size
| Numberof fan | Dimension(unit:mm) | |||||
| L1 | L2 | A | B | h1 | h2 | |
| 2 | 320 | 385 | 452 | 388 | 34 | 410 |
| 3 | 500 | 385 | 452 | 568 | 34 | 410 |
| 4 | 500 | 385 | 452 | 568 | 34 | 410 |
| 6 | 670 | 385 | 452 | 738 | 34 | 410 |
Nature exhaust fan unit has the same size as above table, damper can open and closed completely, drive via DC motor.
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