1001 - Mini centrifugal fan RCABZ - Heat pump
General
The RCABZ series are Rooftop type Air to Air Heat Pumps incorporating centrifugal fans on condenser side, which allows adaptation to air duct distribution system. Air supply may be made through the front or through the base (downflow). Units are delivered totally finished, filled with the operating refrigerant charge, wired and ready for installation. Duct connections, power supply, controller connection, drain, etc…
These units have been produced under strict quality system through the entire process including a final run test to check basic operation parameters and safeties.
Cabinet
Cabinet is made of galvanized steel sheet, finished with polyester powder, electrostatically applied and ovenpolymerized of optimum resistance to corrosion. The assembly is internally lined with thermo-acoustic insulation.
Refrigerant circuit
Made of high grade refrigerant copper tubing, clean and dehydrated. Schrader valves on high & low sides. Filter drier, suction accumulator, reversing valves, etc… Brazing is made with silver alloy under inert atmosphere.
Compressors
Reciprocating or Scroll depending upon models. Specially designed for Heat Pump operation, wide operation limits. Inherent thermal protection. All compressors are mounted on the base with vibration absorbers. Compressors include charge of lubrication oil and crankcase heater.
Heat exchangers
Coils made of aluminium fins and 3/8” copper tubing, high exchanging efficiency.
Fans
Centrifugal fans, double suction that allow for duct application on both sides. Fans are driven by three phase motor 230 or 400.3.50.
Transmission is made through pulleys and belt for airflow/ static pressure regulation. Fans are of reduced sound power level, incorporate pre-lubricated bearings and are static and dynamically balanced.
Expansion device
Indoor section: thermostatic expansion valve. Outdoor section: “restrictor” or capillaries depending upon
models.
Air filters
Polyurethan foam, washable. Fire class M1.
Control equipment
Room thermostat 24V ac. Transformer 24V outlet for the relay operating system. Contactors for compressor, fan motor, etc. Overloads for three phase fan motors. Head pressure pressostat manual reset, low pressure pressostat automatic reset. Reversing valve, solenoid operated 230V. Time delay,
anticycle protection. Defrost system based on periods of time and temperature of outdoor coil. Main circuit breaker.
Options
- Auxiliary electric heat.
- Head pressure control.
- Economizer, etc.
Electric supply
400V 3Ph+N 50H~.
Most models available at 230V.3Ph.
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