Packaged rooftop units
with integrated gas burner
3
1. I
NTRODUCTION
2. O
PERATION
LIMITS
The
48EN/EH
cooling units and heat pumps are autonomous air-air
units with a compact monoblock, horizontal rooftop design with a built
in natural or propane gas burner (in accordance with the gas Directive
90/396 EEC).
They are equipped with centrifugal and axial fans, air coils, hermetic
scroll compressors and electronic control with microprocessor,
components optimised for the R-410A refrigerant.
These units have been designed for the air conditioning of large surface
areas used for business or industry in areas with particularly low outdoor
temperatures in winter.
A vast number of options meet numerous operating demands thus
enabling quick installation and reliable operation.
Space 48EN Series
Autonomous air-air
cooling
units with a compact horizontal rooftop
design with a built in gas burner.
Space 48EH Series
Autonomous reversible air-air
heat pump
units with a compact
horizontal rooftop design with a built in gas burner.
After manufacturing, all units are charged with refrigerant and
are tested at the factory, verifying the correct operation of all
their components.
In this brochure are described the actions and safety norms for a
correct unit handling.
With a condensation pressure control operating down to -10ºC.
With high powered axial fan operating up to 52ºC.
With outdoor temperatures below -15ºC it is compulsory to select the anti-freeze
protection option for the electric panel.
Inlet air conditions
Cooling
Heating
Indoor coil
heat pump
Minimum
14ºC WB
10ºC
Maximum
22ºC WB
27ºC
Outdoor coil
heat pump
Minimum
12ºC
-10ºC WB
Maximum
48ºC
15ºC WB
Gas Burner
Minimum
--
-30ºC
Summary of Contents for 48EH
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