Since most of the roof air conditioning units are used in factories, supermarkets, etc., in order to better manage the system, the units need to be integrated into the overall building control system. At present, there are two kinds of connection methods: (1) connection with each manufacturer's own integrated control system; (2) communication with the third scheme control device through the general control protocol , such as Siemens, Honeywell, and so on. Most of the roof air conditioning units with fresh air and exhaust control are equipped with fresh air and exhaust air.
Heat Pump Rooftop Packaged Conditioner structure, on the one hand, simplifies the design and installation of the customer, on the other hand makes the unit structure more compact and saves floor space. Therefore, in general, the use of rooftop air conditioning units does not require a separate new wind turbine unit.
Most of the current Heat Pump Rooftop Packaged Conditioner use scroll compressors. The scroll compressor has the following advantages:
The moving parts are reduced by 70% compared to reciprocating compressors of the same capacity, with oil film seals and lower friction losses, which improves reliability and performance.
| High temperature air cooled compact constant temperature and humidity precision room rooftop air conditioner (Table 1) | |||||
| Performance Model | WKH18T3 | ||||
| Application | Data Center | ||||
| Unit performance | Cooling cap | kW | 46 | ||
| Air volume | m3/h | 12000 | |||
| ESP | Pa | 195 | 200 | ||
| Noise level | dB(A) | 67 | 68 | ||
| Maximun ambient temp | 50-55℃ | ||||
| Temperature control range and accuracy | 18℃～25℃±1℃ | ||||
| Humidity | RH 40%-60%±5% | ||||
| Heater method | Electric heating | ||||
| Power KW | 12 | ||||
| Humidifier | Electrode humidification | ||||
| Humidification capacity kg/h | 8kg/h | ||||
| Power supply | 3N～50HZ 380V-415V | ||||
| Cooling system | Refrigerant | Type | R134a | ||
| Throttling mode | Thermal expansion valve | ||||
| Compressor | Compressor type | Famous brand of hermetic scroll compressor | |||
| Nominal power | KW | 6.8×2 | |||
| Evaporator | Type | Copper tubes sleeve aluminum fins type | |||
| Fins type | Aluminum double grooved fins | ||||
| Condenser | Type | Copper tubes sleeve water film aluminum fins type | |||
| Fins type | Aluminum corrugated fins | ||||
| Supply air system | Condensing fan | Type | Ultra low noise axial type fan | ||
| Driving mode | Direct drive | ||||
| Motor power | KW | 0.75*2 | |||
| Supply air fan | Type | Ultra low noise double inlet centrifugal fan | |||
| Driving mode | Belt drive | ||||
| Motor power | KW | 4 | |||
| Air filters | Nylon attapulgite + coarse G4,Double filtration | ||||
| Diamension | L | mm | 2300 | ||
| W | mm | 2000 | |||
| H | mm | 2100 | |||
| Weight | kg | 900 | |||
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