HVAC System OEM Non-standard Customization Rooftop Package AC Unit
Rooftop systems offer a flexible way to provide treated air for one
to eight-story buildings. Many options and configurations are
available to satisfy a big number of applications.
Fresh outside air mixed with return air from the occupied space and
then filtered, conditioned, and supplied back into the building.
Conditioning involves cooling, dehumidifying, or heating the air
for optimal space comfort.
Rooftop units can serve a single zone or an entire building filled
with many zones. Some units can be designed specifically for
make-up air, where only outside air is treated and sent to space.
Inverter compressors, belt-less EC fans, and energy recovery
solutions make rooftop systems an easy-to-maintain,
energy-efficient choice for conditioning any space. Electric, hot
water, steam, and heat pump heat provide reliable heating for space
with colder seasons and climates.
Structure
| Panels and frame | Made from galvanized steel protected with polyester powder painting
to ensure total resistance to atmospheric agents. |
| Coil | Direct expansion coils with condensate drain tray. |
| Hermetic compressor | High-efficiency scroll compressor for the whole range, with
built-in thermal overload cut-out and crankcase heater, mounted on
rubber . |
| Vibration damper | Ripple type acoustic insulation for compressor section, and thermal
insulation for coil and fan section, low noise. |
| Centrifugal fan | Forward curve centrifugal fans for air treatment section and axial
fans for condensation section. Front, side, and underside air
discharge of the treatment unit. High external pressure, long air
supply distance. |
| Electric panel | The electric panel consists of breakers and contactors for
compressors and fan motors, phase sequence relay, and other
necessary protection devices for the main components. |
| Easy operation line controller | Cooling/Heating/Auto. Error indication. Timing on/off. |
Preferred Usage Areas
- Commercial Building Air Conditioning
- Hotel Air Conditioning
- Airport Air Conditioning
Technical parameter:
| Model | SRF12ZA | SRF 15ZA | SRF18ZA | SRF24ZA | SRF30ZA | SRF35ZA |
| SF12ZA | SF15ZA | SF18ZA | SF24ZA | SF30ZA | SF35ZA |
| Nominal cooling capacity | kW | 12 | 15.2 | 17.5 | 24 | 30.3 | 35.6 |
| Nominal heating capacity | kW | 13.2 | 16.6 | 18.4 | 26.5 | 33.3 | 37.7 |
| Energy regulation | % | 0,100% | 0,50,100% |
| Power supply | 380V / 3Ph / 50HZA |
| Cooling input capacity | kW | 4.1 | 5.3 | 5.5 | 8.8 | 11.3 | 12.3 |
| Heating input capacity | kW | 3.8 | 4.8 | 5.1 | 8.2 | 10.4 | 11.3 |
| Start current | A | 48 | 62 | 63 | 63 | 74 | 76 |
| Cooling running current | A | 7.4 | 9.7 | 10.2 | 16.1 | 21.2 | 23.3 |
| Heating running current | A | 6.9 | 9.2 | 9.7 | 15.1 | 20.1 | 22.2 |
| Throttling method | Thermal expansion valve |
| Cooling system | 1 | 1 | 1 | 1 | 2 | 2 |
| Refrigerant | R410A |
| Compressor | Type | Hermetic scroll compressor |
| Qty | 1 | 1 | 1 | 1 | 2 | 2 |
| Condensation side | |
| Condenser | Type | Copper tube and aluminum fin |
| Qty | 1 | 1 | 1 | 1 | 1 | 1 |
| Drive type | Direct drive |
| Motor power | kW | 0.25 | 0.37 | 0.37 | 0.55 | 0.75 | 0.75 |
| Air volume | m3 /h | 4600 | 7800 | 7800 | 9000 | 12600 | 12600 |
| Evaporation side | |
| Evaporator | Type | Copper tube and aluminum fin |
| Qty | 1 | 1 | 1 | 1 | 1 | 1 |
| Motor power | kW | 0.32 | 0.37 | 0.45 | 1.1 | 1.5 | 2.2 |
| Air volume | m3 /h | 2100 | 2600 | 3400 | 4100 | 5200 | 6300 |
| Drive type | Direct drive | Pulley |
| Static pressure(Pa) | 100 | 100 | 100 | 200 | 200 | 250 |
| Filter | Aluminum filter G3 |
| Noise dB(A) | 67 | 67 | 68 | 71 | 72 | 72 |
| Refrigerant filling volume(kg) | 3.1 | 3.1 | 4.3 | 2x3.1 | 2x3.1 | 2x4.3 |
| Overall dimensions | Length(mm) | mm | 1410 | 1410 | 1410 | 1978 | 1978 | 1978 |
| Width(mm) | mm | 1100 | 1100 | 1100 | 1175 | 1175 | 1175 |
| Height(mm) | mm | 1095 | 1095 | 1095 | 1095 | 1095 | 1095 |
| Weight | kg | 240 | 260 | 290 | 420 | 480 | 500 |
1. Nominal cooling capacity is under nominal air volume, indoor
DB/WB temperature is 27℃/19℃ and outdoor DB/WB temperature is
35℃/24℃ condition;
2. Nominal heating capacity is under nominal air volume, indoor
DB/WB temperature is 20℃/15℃ and outdoor DB/WB temperature is 7℃/6℃
condition;
Preferred Usage Areas
Commercial Building Air Conditioning
Hotel Air Conditioning
Airport Air Conditioning
Some overseas project:
Pre-Sales Service:
* Inquiry and consulting support.
* Sample testing.
* View our Factory.
After-Sales Service:
* Training how to instal the machine, training how to use the
machine.
* Engineers available to service machinery overseas.
