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ROOPTOP
PACKAGED.
AC Rooftop adalah Suatu pendingin ( AC ) yang letaknya berada di atap bangunan. Sistem itu menyatu (tidak terpisah), dan terangkai langsung dengan pekerjaan ducting dari posisi unit AC di atap, sama seperti halnya AC split biasa, AC Rooftop mempunyai beberapa variasi ukuran untuk mengakomodasi ukuran ruangan yang didinginkan.
Air-Cooled
Rooftop Package
UATQ-C series
Product Features
1.High efficiency
UATQ-C series comes with high efficiency scroll compressors, optimized heat exchangers and high-performing fans which enables the unit to deliver top performance in both standard and high ambient temperature conditions. At the same time, it also ensures high energy efficiency and reduced power consumption.
2.Wide operating range
UATQ-C series rooftops are specifically designed for high ambient application and are capable of operating at an outdoor ambient of up to 52°C.
3.Flat top design
The units’ flat top design allows it to be stacked up in the warehouse and during transportation. This ensures both warehouse and container space are optimized.
4.Plug-n-play installation
Additional piping works are not required as both the indoor and outdoor sides are pre-connected. The horizontal air discharge from the top and return air from the bottom makes the duct design straightforward. Once the ductwork is installed, the remaining is just to connect electricity to the unit.
5.Air discharge and air return
The UATQ-C series is available in horizontal air discharge only. It is designed with air discharge on the top, and return air from the bottom for easy duct design.
6.Independent refrigerant circuit
The unit is designed with two independent refrigerant circuit, where user can control each individual system separately. This also allows the unit to run at part load when less capacity is required.
*Applicable for UATQ120C and above only
7.External 3rd party testing
The UATQ-C series have undergone stringent 3rd party testing by INTERTEK, an internationally recognized certification body, to verify on its designed performance data.
8.Auto random restart
When the unit stop suddenly due to power failure during operation, it will automatically restart its last setting condition once the power is resumed. However, the compressors will restart randomly if more than one unit are installed under the same phase of power.
9.Safety protection features
> High and low pressure protection
> Phase sequence protection
> Compressor and current overload protection
> Minimum compressor run and off time protection
> Sensor fault indication
10.Anti-corrosion heat exchanger
Hydrophilic Gold Fin coated coil is offered as a standard coil to further prolong unit life span under corrosive environment. Coil guard is incorporated to protect heat exchanger from accidental damage which may happen during transportation, handling and installation.
Controller Features
Microprocessor Unit Controls
UATQ-C series is equipped with microprocessor controller. Every unit comes with a microprocessor operated handset. It has a built-in anti recycle timer to prevent compressor from short cycling. The compressor, condenser motor and evaporator motor starts up in sequence to prevent power surge. Microcontroller records the compressor run time internally to ensure balance usage of compressor.
Handset functions:
> Real Time Clock with 7 Days Programmable Timer with 2 sets/day
> Temperature setting
> Energy saving mode
> 4 wire thermostat
> Compressor balance loading to optimize lifetime
> Key lock function
> Error code display
Comfonent Features
1. Unit casing is made of zinc coated galvanized steel sheets. It is further coated with electrostatic powder coat and then oven-baked for a tough and lasting resistant finish. All parts are fastened with zinc plated screws to further prevent unit from rusting.
2. The unit comes with Double Width Double Inlet (DWDI) centrifugal, forward curved type blower. It is mechanically, dynamically balanced and mounted on a rigid shaft in a self-aligned bearing block. The belt driven evaporator motor allows the change of pulley on-site to accommodate different static pressure and air flow requirement.
3. The unit comes with saranet pre-filter as a standard. 2 inches rail for return air filters is provided as standard for field supplied filter casement installation. The sheet metal condensate drain pan is powder coated to prevent corrosion.
4. Evaporator and condenser coils are made of seamless inner grooved copper tubes which will be mechanically bonded with aluminum fins to ensure optimum heat transfer. All coils are tested against leakage by nitrogen holding at 609psig and highly precise helium leak test at 235psig. Hydrophilic Gold Fin coated coil is offered as a standard coil to further prolong unit life span under corrosive environment. Coil guard is incorporated to protect heat exchanger from accidental damage which will happen during transportation, handling and installation.
5. Each unit is designed with two independent refrigerant circuit. It allows the system perform optimum part loading with independent Thermal Expansion Valve (TXV), filter drier and high/low pressure switch.
*Applicable for UATQ120C and above only.
6. The high efficiency, low noise and hermitically sealed scroll compressor are used in UATQ-C series to give it the highest possible performance. All compressors are equipped with an internal overload protection and crankcase heaters as standard.
7. Additional valves are provided for site installation of pressure gauge and low ambient kit.
8. The evaporator and condenser fan motor used in UATQ-C series are rated IP55 protection index with Class B and Class F insulation respectively. The condenser fan motor is designed with dust proof bearing to further enhance durability and smooth operation all year round.
9. The rooftop foundation is rigid, with dedicated holes for forklifting and rigging. This is for better handling during 9 transportation and installation.
Specification guide
General features
The rooftop unit shall consist of compressors, fan motors, condenser coils, evaporator coil, expansion valves, refrigerant piping and electrical components.
The unit shall be assembled, complete with internal wiring, fully charged with R-410A refrigerant and undergo strict tasting & quality check before delivery.
The rooftop unit shall be capable of operating from 19°C to 52°C ambient temperature without failure.
Compressor
Compressor shall be hermetically sealed, high efficiency and low noise scroll type compressor. The compressor shall be equipped with an internal overload protection.
Evaporator coil and condenser coil
Evaporator coil and condenser coil shall be manufactured from seamless inner grooved copper tubes, which are mechanically bonded to aluminium fins.
All coils shall be tested against leakage by nitrogen holding at 609psig and highly precise helium leak test at 235psig.
Evaporator coil shall be manufactured with hydrophilic gold fin coating to provide good effect to efficient drainage of condensate water.
Condenser coil shall be manufactured with hydrophilic gold fin coating, which ensure longer life span even under corrosive environment.
Evaporator fan & motor
Blower shall be DWDI centrifugal, forward curved type. It shall be mechanically and dynamically balanced and being mounted on a rigid shaft in self aligned bearing block. The blower shall be designed with belt driven evaporator motor that has a Class B insulation and splash proof enclosure of IP55. The design shall allow for change of pulley in order to accommodate different static pressure and air flow requirement.
Condenser fan & motor
Condenser motor shall be designed with a Class F insulation and splash proof insulation of IP55 The motor shall equipped with dust proof bearing. Condenser fan shall be direct driven propeller type.
Refrigerant Circuit
The unit shall be able to operate at part loading depending on the requirement of the application. To allows the unit to run at part load when less capacity is required.
Each refrigerant circuit shall have an independent Thermal Expansion Valve (TXV), filter drier and high / low pressure switch.
Easy access valves shall be provided for site installation of pressure gauge and low ambient kit.
Casing/ structure
The casing and structure of the unit shall be made from zinc coated galvanized steel sheets and further coated with an electrostatic powder for better resistance against the weather.
Filter
A 2 inch filter rail shall be provided in the unit for site installed filter.
Control panel
The controller in the unit shall be electronically controlled with microcontroller, and shall be supplied with a wired remote controller.
External 3rd party testing
The unit shall have a 3rd party test report by an internationally recognized certification body, to verify on its designed performance data.
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