屋顶机

屋顶机

Wide Cooling Capacity Range
There is a large production line of packaged units, with capacities ranging from 3Ton to 85Ton at nominal conditions. Cooling only and heat pump versions. It is suitable for installation in rooftop and ground.
 
Economy
Some models feature the flexibility and economy of 2~4 stages operation. Compressors are progressively switched on only as they are needed. This has the added advantage of lowering start-up current.
 
Outstanding Reliability

-Durable Construction. Our packaged systems are built tough to withstand all weathers. Their durable construction ensures a long life and excellent return on your investment. The outdoor air coils' aluminum fins are epoxy coated for extra protection in corrosive environments. Cabinets are constructed from high grade steel - polyester powder coated for all weather protection. External fasteners are stainless steel or galvanized type. Corrosion resistant drain trays are also included.

-All units are tested at the factory to make sure no leakage for coil and provide reliable start up. Coils are manufactured from seamless copper tubes mechanically expanded into aluminum fins.  All coils are tested at 30kg/cm2  (450 Psi)  air pressure, under water to avoid leakage. They also undergo dry chemical cleaning after manufacturing for optimum system cleanness.
 
-Reliable Scroll Compressor. High efficiency scroll compressor for the whole range, with built-in thermal overload cut-out and crankcase heater, mounted on rubber vibration dampers.
 
-Multi-protection Design
Electric panel consists of breakers and contactors for compressors and fan motors, phase sequence relay and other necessary protection devices for the main components. 
 
Quieter Operation
SENDO packaged Rooftop series are basic constructed and engineered with noise reduction as a first consideration, low noise mounted fans are used, 15mm wave type acoustic Insulation for compressor section and compressors are mounted on vibration isolators. Ripple type acoustic insulation for compressor section, and thermal insulation for coil and fan section, reduce condensation and low noise.
 
Easy to Installation and Maintenance
Units are factory assembled and pre-charged, with a single point electrical connection. On arrival to the job site they are ready to be lifted to their operating position through the lifting supports available on the units. 
Convenient for wires connection, only connect the wires of power supply, and no need to connect any signal wires.
Quick release fasteners are provided on electrical and compressor panel. Removable the access doors on the filter, fan motor, and electric box sections, provide convenient access to system components for maintenance and service.
 
OPTIONAL
Economizer with fresh, return air dampers with cowl
Free cooling function for low ambient temperature
Optional water heating coil
Optional electric heater
Optional supply / return air configurations
Tropical climate T3 condition
100% heat recovery
100% fresh air
G4 filter and bag filter
CO2 and smoke detector
BMS devices
SIEMENS or CAREL PLC control system

 
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