Rooftop Packaged Units has been developed specifically to suit commercial applications and are designed for flexible and easy installation.
Along with the light colour, the flat top and compact design gives an aesthetic and neat appearance when installed in the line of sight. The durable powder coated sheet metal and corrosion resistant fixings make this unit ideal for the harsh climate.
1. CONDENSER FAN AND MOTOR
› Sharp edge fan blade curvature reduces vibration and pressure loss
› Large diameter fan quietly delivers high air volume
› Electronically commutated (EC) motor
› Fan speed is modulated according to operation
mode (cool or heat) & heat exchanger temp.
2. CONDENSER AND EVAPORATOR
The condenser and evaporator coils are manufactured from seamless inner grooved copper tubes mechanically bonded to aluminium fins to ensure optimum heat transfer. All coils are pressure tested and are further leak tested with Helium gas . To improve corrosion resistance, a hydrophilic Gold Fin is provided as standard.
3. CASING / STRUCTURE
The casing is made of zinc coated galvanised steel sheets. It is further treated with an electrostatic powder coat then over baked to provide a weather resistant finish to suit the harsh climate. The screws are also zinc plated to improved product durability.
4. EVAPORATOR FAN AND DRIVE
A belt driven, double width double inlet (DWDI) centrifugal forward curved fan is used as the evaporator fan. This configuration with the factory fitted Variable Pitch Pulley (VPP) allows the unit to meet a wide range of airflows and external static pressures.
5. COMPRESSOR
Compressor’s used in the unit packaged units are hermetically sealed scroll type. All compressors are provided with an internal overload protection.
6. EXPANSION DEVICE
For precise control of refrigerant flow, the unit is equipped with an electric Expansion Valve (EEV).
The packaged rooftop heating and cooling unit is designed and produced for centralized cooling and heating in commercial buildings such as malls, movie theaters, workshops, stadiums, airports, and schools. These units feature a special design with different functional segments to handle the challenges of places with strict temperature and humidity requirements.
| Rooftop Packaged Unit-1 | |||||||
| Model | RWK18 | RWK28 | RWK35 | RWK50 | RWK70 | ||
| Capacity | Cooling | kW | 18 | 27.5 | 35.6 | 50 | 70 |
| TR | 5 | 8 | 10 | 14 | 20 | ||
| Heating | kW | 18.2 | 28.3 | 38 | 54 | 75 | |
| TR | 5 | 8 | 11 | 15 | 21 | ||
| Max starting current | A | 35 | 50 | 76 | 168 | 181 | |
| Running current on cooling | 12 | 17 | 26 | 36 | 58 | ||
| Running current on heating | 12 | 17 | 24 | 34 | 55 | ||
| Power | Cooling | kW | 6.23 | 9.45 | 12 | 20 | 27 |
| Heating | kW | 6.25 | 9.45 | 11 | 18 | 25 | |
| Compressor | Brand | Panasonic | Panasonic | Panasonic | Panasonic | Panasonic | |
| Quantity | 1 | 1 | 1 | 2 | 2 | ||
| Refrigerant | R410a | R410a | R410a | R410a | R410a | ||
| Refrigerant charge | kG | 4.5 | 6 | 6.5 | 12.8 | 17 | |
| Condenser | Coil | Copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | Copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | Copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | Copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | Copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | |
| Copper pipe type | 7mm internal thread | 7mm internal thread | 7mm internal thread | 7mm internal thread | 7mm internal thread | ||
| Fan type | Axial | Axial | Axial | Axial | Axial | ||
| Fan drive | Direct drive | Direct drive | Direct drive | Direct drive | Direct drive | ||
| Motor qty | 1 | 1 | 1 | 1 | 2 | ||
| RPM | 710 | 710 | 930 | 930 | 930 | ||
| Motor input power | kW | 0.37 | 0.55 | 1.1 | 1.5 | 1.5 | |
| Evaporator | Coil | 4 rows copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | 4 rows copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | 4 rows copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | 4 rows copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | 4 rows copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | |
| Copper pipe type | 7mm internal thread | 7mm internal thread | 7mm internal thread | 7mm internal thread | 7mm internal thread | ||
| Fan type | Centrifugal | Centrifugal | Centrifugal | Centrifugal | Centrifugal | ||
| Evaporator fan drive | Direct drive | Direct drive | Direct drive | Direct drive | Direct drive | ||
| RPM | 960r/min | 1400r/min | 1400r/min | 950r/min | 960r/min | ||
| Motor input power | kW | 0.8 | 1.1 | 2.2 | 2.2 | 5.5 | |
| Air flow rate | m3/h | 3400 | 5200 | 6000 | 8000 | 12500 | |
| cfm | 2000 | 3050 | 3500 | 4700 | 7350 | ||
| External static pressure | Pa | 100 | 150 | 250 | 250 | 300 | |
| inch H2o | 0.4 | 0.6 | 1 | 1 | 1.2 | ||
| Galvanized thickness | μm | 80 | 80 | 80 | 80 | 80 | |
| Paint thickness | μm | 60 | 60 | 60 | 60 | 60 | |
| Fliter meterial | Aluminum G3 | Aluminum G3 | Aluminum G3 | Aluminum G3 | Aluminum G3 | ||
| Noise | db(A) | 70 | 72 | 72 | 72 | 74 | |
| System pressure control | High/Low pressure switch | High/Low pressure switch | High/Low pressure switch | High/Low pressure switch | High/Low pressure switch | ||
| Dimension | L | mm | 1860 | 2010 | 2010 | 2010 | 2930 |
| W | mm | 965 | 1165 | 1158 | 1158 | 2150 | |
| H | mm | 1050 | 1155 | 1155 | 1155 | 1230 | |
| Weight | kG | 280 | 320 | 384 | 600 | 800 | |
| Continuous improvement of technology is our aim ,Ruidong keep the rights to change the parameter without prior notice | |||||||
| Cooling Conditons : Outdoor : 35℃，Indoor : 27℃/19℃(DB/WB) | |||||||
Rooftop Packaged Units has been developed specifically to suit commercial applications and are designed for flexible and easy installation.
Along with the light colour, the flat top and compact design gives an aesthetic and neat appearance when installed in the line of sight. The durable powder coated sheet metal and corrosion resistant fixings make this unit ideal for the harsh climate.
1. CONDENSER FAN AND MOTOR
› Sharp edge fan blade curvature reduces vibration and pressure loss
› Large diameter fan quietly delivers high air volume
› Electronically commutated (EC) motor
› Fan speed is modulated according to operation
mode (cool or heat) & heat exchanger temp.
2. CONDENSER AND EVAPORATOR
The condenser and evaporator coils are manufactured from seamless inner grooved copper tubes mechanically bonded to aluminium fins to ensure optimum heat transfer. All coils are pressure tested and are further leak tested with Helium gas . To improve corrosion resistance, a hydrophilic Gold Fin is provided as standard.
3. CASING / STRUCTURE
The casing is made of zinc coated galvanised steel sheets. It is further treated with an electrostatic powder coat then over baked to provide a weather resistant finish to suit the harsh climate. The screws are also zinc plated to improved product durability.
4. EVAPORATOR FAN AND DRIVE
A belt driven, double width double inlet (DWDI) centrifugal forward curved fan is used as the evaporator fan. This configuration with the factory fitted Variable Pitch Pulley (VPP) allows the unit to meet a wide range of airflows and external static pressures.
5. COMPRESSOR
Compressor’s used in the unit packaged units are hermetically sealed scroll type. All compressors are provided with an internal overload protection.
6. EXPANSION DEVICE
For precise control of refrigerant flow, the unit is equipped with an electric Expansion Valve (EEV).
The packaged rooftop heating and cooling unit is designed and produced for centralized cooling and heating in commercial buildings such as malls, movie theaters, workshops, stadiums, airports, and schools. These units feature a special design with different functional segments to handle the challenges of places with strict temperature and humidity requirements.
| Rooftop Packaged Unit-1 | |||||||
| Model | RWK18 | RWK28 | RWK35 | RWK50 | RWK70 | ||
| Capacity | Cooling | kW | 18 | 27.5 | 35.6 | 50 | 70 |
| TR | 5 | 8 | 10 | 14 | 20 | ||
| Heating | kW | 18.2 | 28.3 | 38 | 54 | 75 | |
| TR | 5 | 8 | 11 | 15 | 21 | ||
| Max starting current | A | 35 | 50 | 76 | 168 | 181 | |
| Running current on cooling | 12 | 17 | 26 | 36 | 58 | ||
| Running current on heating | 12 | 17 | 24 | 34 | 55 | ||
| Power | Cooling | kW | 6.23 | 9.45 | 12 | 20 | 27 |
| Heating | kW | 6.25 | 9.45 | 11 | 18 | 25 | |
| Compressor | Brand | Panasonic | Panasonic | Panasonic | Panasonic | Panasonic | |
| Quantity | 1 | 1 | 1 | 2 | 2 | ||
| Refrigerant | R410a | R410a | R410a | R410a | R410a | ||
| Refrigerant charge | kG | 4.5 | 6 | 6.5 | 12.8 | 17 | |
| Condenser | Coil | Copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | Copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | Copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | Copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | Copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | |
| Copper pipe type | 7mm internal thread | 7mm internal thread | 7mm internal thread | 7mm internal thread | 7mm internal thread | ||
| Fan type | Axial | Axial | Axial | Axial | Axial | ||
| Fan drive | Direct drive | Direct drive | Direct drive | Direct drive | Direct drive | ||
| Motor qty | 1 | 1 | 1 | 1 | 2 | ||
| RPM | 710 | 710 | 930 | 930 | 930 | ||
| Motor input power | kW | 0.37 | 0.55 | 1.1 | 1.5 | 1.5 | |
| Evaporator | Coil | 4 rows copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | 4 rows copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | 4 rows copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | 4 rows copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | 4 rows copper pipe with hydrophilic coated 0.11 mm aluminium fins (12 fins/inch) | |
| Copper pipe type | 7mm internal thread | 7mm internal thread | 7mm internal thread | 7mm internal thread | 7mm internal thread | ||
| Fan type | Centrifugal | Centrifugal | Centrifugal | Centrifugal | Centrifugal | ||
| Evaporator fan drive | Direct drive | Direct drive | Direct drive | Direct drive | Direct drive | ||
| RPM | 960r/min | 1400r/min | 1400r/min | 950r/min | 960r/min | ||
| Motor input power | kW | 0.8 | 1.1 | 2.2 | 2.2 | 5.5 | |
| Air flow rate | m3/h | 3400 | 5200 | 6000 | 8000 | 12500 | |
| cfm | 2000 | 3050 | 3500 | 4700 | 7350 | ||
| External static pressure | Pa | 100 | 150 | 250 | 250 | 300 | |
| inch H2o | 0.4 | 0.6 | 1 | 1 | 1.2 | ||
| Galvanized thickness | μm | 80 | 80 | 80 | 80 | 80 | |
| Paint thickness | μm | 60 | 60 | 60 | 60 | 60 | |
| Fliter meterial | Aluminum G3 | Aluminum G3 | Aluminum G3 | Aluminum G3 | Aluminum G3 | ||
| Noise | db(A) | 70 | 72 | 72 | 72 | 74 | |
| System pressure control | High/Low pressure switch | High/Low pressure switch | High/Low pressure switch | High/Low pressure switch | High/Low pressure switch | ||
| Dimension | L | mm | 1860 | 2010 | 2010 | 2010 | 2930 |
| W | mm | 965 | 1165 | 1158 | 1158 | 2150 | |
| H | mm | 1050 | 1155 | 1155 | 1155 | 1230 | |
| Weight | kG | 280 | 320 | 384 | 600 | 800 | |
| Continuous improvement of technology is our aim ,Ruidong keep the rights to change the parameter without prior notice | |||||||
| Cooling Conditons : Outdoor : 35℃，Indoor : 27℃/19℃(DB/WB) | |||||||
