Rooftop Unit

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STRUCTURE Panels and frame are made from metal steel protected with polyester powder painting to ensure total resistance to atmospheric agents. Direct expansion coils with condensate drain tray. HERMETIC COMPRESSORS High efficiency scroll compressor for the whole range, with built-in thermal overload cut-out and crankcase heater, mounted on rubber vibration dampers. 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 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 OPTIONAL Economizer with fresh, return air dampers with cowl for models from 14 to 75 Free cooling function for low ambient temperature. Hot gas bypass (where low-local situation occurs and where it is necessary avoid low suction pressure and “compressor cycling”). Low ambient control device for operation of outdoor units at ambient temperatures from less than 20°C down to -10°C. ACCESSORIES Air pressure switch for indoor fan. High Static condenser fan option with sealed + drain condensing section. Optional water heating coil Metal or plastic mesh on condenser coil. Optional supply / return air configurations Upgraded evaporator fan motor drives.

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Shandong Lark Central Air Conditioner Co.,Ltd.

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