All the units are made in galvanized sheet metal and oven painted with polyurethane powders at 180 °C to guarantee the best resistance to environmental factors.
The housing is self-standing with removable panels to facilitate inspections and maintenance of inner components.
All the screws are stainless steel coated.
The color of the housing is RAL9018.
The refrigerant circuit is produced using components from primary international companies with braze-soldering complying with ISO97/23. Refrigerant gas is R410A.
The refrigerant circuit includes:
liquid indicator, dehydrating filter
thermostatic valve with external equalization
Shrader valves for maintenance and control
security device (according to PED legislation).
All the units are provided with injection valves kit for hot gas defrosting cycles.
Fans are made with galvanized steel and are of centrifugal type with forward blades. They are all statically and dynamically balanced. All the electrical motors are connected directly with fans.
They have 3 speeds with integrated thermal protection.
All the motors comply with IP 54 protection standard.
All the unites are equipped with a microprocessor for compressor timing control, defrosting cycles and alarms. A specific display with led spies will show the functioning status of the unit and the eventual problems.
SAFETY AND PROTECTION DEVICE
All the units are equipped with the following control and protection devices:
temperature probe to signal through the microprocessor the need for a start and end of defrosting cycle
high pressure pressostat with automatic reset
thermal protection for compressors
thermal protection for vents
Compressors are rotary with resistant crankcase and protection thermal relay sunk in electrical windings.
Compressors are installed on anti-vibration rubber pads and are provided with a protection cap to reduce sound level.
It is possible to inspect the compressor through the unit’s frontal panel that allows maintenance also with operating machine.
CONDENSERS AND EVAPORATORS
Condensing and evaporating coils are made with brass pipes and aluminum fins. All the evaporators are painted with epoxy powder to prevent problems when the units are used in aggressive environment.
Brass pipes have a diameter of 3/8” and the thickness of aluminum fins is 0,1mm. Pipes are mechanically expanded in aluminum fins to enhance thermal exchange.
The geometry of such exchangers allows for a minimal loss of inlet air loading and so enables the unit to use vents with lower rounds per minute (with consequent reduction in sound level of the unit).
All the units are equipped with stainless steel coated integrated drip trays. Each evaporating coil is equipped with a temperature probe that is used for automatic defrosting.
The air filter is included with the unit and it is made in static-charge protected filtering synthetic fiber, removable for specific disposal and class G5 according to EN 779:2002.
Electrical panel comply with EU legislation 72/23 and 89/336. Accessibility to electrical panel is possible through the frontal panel of the unit and it is protected with a door-lock general switch.
All the units comes with: door-lock circuit breaker, automatic circuit breaker for vents and compressors, fan relays, auxiliary circuits fuses, compressor relay.
Electrical panel is also equipped with a terminal block with free contacts for remote ON-OFF.
All the units are entirely factory assembled and wired, tested for leakage, vacuum cycle and loaded with refrigerant gas R410A.
All the units undergo a complete live test before shipping. All the units
comply with EU legislation and are provided with CE mark and certificate of conformity.
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