Denomination
series
model
example
50NF 120
compact
50 = compact
Z = cooling only
F = heat pump
vertical air-air
N = vertical air-air
model
heat pump
Unit configuration
■■ Casing
-- Casing made of galvanised steel metal with polyester
paint dried to the furnace and thermal insulation.
Self-supporting frame.
AIR TREATMENT
■■ Outdoor circuit
-- Centrifugal fan(s) with coupling by pulleys and belts.
Electric motor(s) with tensioner, class F, IP55 and
internal thermal protection. Turbines with an impeller of
front-curved blades. Greased spherical bearings,
with no maintenance required. Optionally, high
available pressure.
-- Protection grille(s) of the fan supply outlet(s).
-- Condensates drain pan.
-- Copper pipe and aluminium fins coil.
■■ Indoor circuit
-- Centrifugal fan with coupling by pulleys and belts.
Electric motor with tensioner, class F, IP55 and internal
thermal protection. Turbines with an impeller of
front-curved blades. Greased spherical bearings,
with no maintenance required. Optionally, high
available pressure.
-- Reusable air filter.
-- Condensates drain pan.
-- Copper pipe and aluminium fins coil.
■■ Cooling circuit
-- Scroll compressor(s) assembled over shock
absorbers. Thermal protection.
-- Thermostatic expansion valve with outdoor pressure
external equalisation.
-- Anti-acid dehydrator filter.
-- Four-way valve for cycle inversion (50NF series).
-- Crankcase heater.
■■ Protections
-- High and low pressure pressostats.
-- Compressor discharge temperature control.
-- Main door switch.
-- Automatic switch in the control circuit.
-- Magnetothermic protection switches for the
compressor(s) and fan(s) motor power line.
-- Fan thermal protection.
■■ Electric panel
-- Complete and fully wired electrical panel.
-- Main earth connection.
-- Compressor(s) and fan motor contactors.
Operating limits
Inlet air conditions
Indoor coil
Outdoor coil
*
**
Cooling
Heating
Minimum
14ºC WB
10ºC
Maximum
21ºC WB
27ºC
Minimum
12ºC *
-7ºC WB **
Maximum
43ºC
15ºC WB
With control of the condensation pressure operating up to -10ºC.
When the outdoor temperature is usually below 5ºC WB it is recommended installing a support element.
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