وحدة معبأة مجانية للتبريد

Free Cooling Rooftop Packaged Unit

Buildings that comply with new thermal regulations have good insulation and require more cooling even when outside temperature is low. Thermodynamic cooling can be replaced by free cooling by introducing cool outside air into the building for best energy efficiency year round.

سمات

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.

ضاغط

High efficiency scroll type compressor is hermetically sealed, quiet running and supported on rubber mounts to minimise vibration. All compressors are provided with an internal overload protection, and incorporate crankcase heater for smooth start-up under any conditions.

CONDENSER AND EVAPORATOR

The condenser and evaporator coils are manufactured from seamless copper tubes mechanically bonded to b lue hydrophilic aluminium fins to ensure optimum heat transfer . The shoulder of each fin adjoins the shoulder of the adjacent fin, completely encasing the copper tubes for maximum heat transfer. The generously sized coils provide ample capacity under all normal operating conditions. All coils are pressure tested t o 450Psi at the factory to avoid leakage. To improve corrosion resistance, a hydrophilic Gold Fin is provided as optional.

CONDENSER FAN AND MOTOR

Direct driven propeller axial fans are used for maximum condensing efficiency.

EVAPORATOR FAN AND MOTOR

Fans are of the centrifugal type that is designed for maximum efficiency for uniform air distribution. Traditional belt driven or EC plug-fan.

عازلة

Ripple type acoustic insulation for compressor section , low noise. To prevent the likelihood of condensation occurring the unit is equipped with 10mm Polyethylene panel insulation for coil & fan section .

S AFETY

Electric panel consists of breakers and contactors for compressors and fan motors, phase sequence relay and other necessary protection devices for the main components. All electric parts are Schneider Electric brand.

* SIEMENS PLC controller is optional. * Main power supply breaker is optional.

EASY INSTALLATION AND MAINTENANCE

The base beams are fixed and provide a rigid foundation for the entire unit. The bea m has forklift slots or rigging holes for easy handling. To keep installation as hassle-free as possible, Sendo Roof Top Units are fully factory assembled , tested and charged with R410A refrigerant. Only ductwork and external wiring connections are required to make the units completely operable ensuring rapid, low-cost installation. For ease of commissioning and maintenance, Sendo Rooftop Packaged Air Conditioners include easy access to the electrical cabinet and major refrigeration components. The unit provides external pressure gauge for convenient and fast checking system pressure without removing the panel. If the unit is in running with abnormal operation, the controller will show the error code for easy troubleshooting.

O PTIONAL ACCESSORIES

Tropical climate T3 application

Optional supply / return air configuration

Optional golden condenser & evaporator for some area need special anti-corrosion

Economizer /Free cooling

Additional water heating coil

Additional electric heater

استرجاع الحرارة

100% Full fresh air

Optional high level filter

Optional precision temperature & humidity control

تخصيص

Cooling: room air temperature 27.0°C DB RH 50%, ambient air temperature 35°C;

Heating: room air temperature 21.0°C DB, ambient air temperature 7°C DB / 6°C WB .

** Noise level measured by adopting average value in the noise lab with background noise of 25 dB(A), at a distance of 1.5m high fan speed.

***Specifications are subject to change without prior notice for SENDO product improvement.

Dimension (Please contact manufacturer for more information)

ورشة عمل

Improved energy efficiency through new technology

Sendo contribution to combat rising energy costs and global warming is to design innovative, efficient and dependable HVAC products, while providing best comfort and air quality.

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