1402 - Roof Top units axial fans RXCA - Cooling only
Description
The RXCA- RXCBA series are Roof Top type Airconditioners cooling only and air to air heat pumps to operate through an air duct distribution system and to be installed outdoors on the roof of the building . Units are supplied totally finished, having passed a strict final run test and ready to be installed on site (duct system, electric supply, controller, drain, . The unit is delivered with operational R410A charge.
Cabinet
Chassis is made of sturdy steel profile made form steel plate , giving the unit the structural rigidity, necessary for construction, maintenance handling and transport. Cabinet is made of galvanized steel sheet, finished with polyester powder, electrostatically applied and oven polymerized covering the edges and angles of optimum resistance to
corrosion and outdoor ambients. The assembly is internally lined with thermo-accoustic insulation. Access panels are fixed by means of quick (1/4 turn) for easy access. Standard colour is RAL 1013 Refrigerant Circuit Made of high grade refrigerant copper tubing, clean and dehydrated.
Schrader Valves on high & low sides,expansion device, filter drier,and suction accumulator, reversing valve and check valves in heat pumps, etc. Brazing is made with silver alloy.
Compressors
Scroll type . 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.Up to four compressors and one or two circuits depending upon models for the basic unit. One
compressor – One circuit for de Heat Recovery .
Heat exchangers
Coils made of aluminium fins and 3/8” grooved copper tubing, high exchanging efficiency. Option pretreated (acrylic) condenser coil.
Fans
Indoor section Centrifugal fans, double suction that allow for duct application. driven by three phase motor 230 or 400.3.50 and transmission through pulleys and belt for airflow/static pressure regulation. Outdoor section : Direct drive Axial Fans IP-54 protection, class F insulation.
Option: Variable speed Inverter Fans. Fans are of reduced sound power level, incorporate pre-lubricated bearings and are static and dynamically balanced.
Expansion Device
Thermostatic expansion valve on both indoor and outdoor sides (Heat Pump). Option electronic expansion valve
Air Filters
Polyurethan foam, Tecnopor ppi 20, washable. Fire class M1.Other filters (G4,G5 , G7) as an option
Control Equipment
Depending on versions
- Room thermostat
- Controller pGD for Economizer and Heat Recovery
- Main circuit breaker.
- Contactors for compressor, fan motors.
- Overloads for three phase fan motors.
- Magnetothermic circuit breakers for Compressors and Fan motors H.P. pressostat manual reset, L. P. pressostat automatic reset.
- Reversing valve, solenoid operated 230V.
- Time delay, anticycle protection. Defrost system based on periods of time and temperature of outdoor coil. (In Economizer and RCF versions this is incuded on the electronic board)
Options
- Auxiliary electric heat
- Hot water coils (cooling only units)
- Gas Heater
- Head pressure control
- Special variable speed Inverter Fans
- Heat Recovery . Auxiliary Circuit
- Economizer.
- Pretreated condenser coils
- Upgraded indoor fan for higher external static pressures
- Special air filters (G4, G7 etc)
- Versions for other climates
- Versions for other power supplies
Electric Supply
400V. 3Ph. +N, 50Hz
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