SYSTEMP Engineering Data Manual (EDM SYSTEMP S 7GB)

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Specications
4
The structure is riveted monobloc made by hot-galvanized
sheet steel of 1mm-thickness painted in anthracite colour
RAL 7024. Thermal acoustic insulation system consisting of
23mm thickness for the sides panel and 12 or 20 mm for
the back panel according to the unit model.
The insulation is high density, A1 class re-resistance poly-
urethane sheets as per norm UNI/ISO 3795, self-extin-
guishing, protected by a plastic lm out friction. The doors
are fastened to the structure with hinges and safety access
keys.
Valid for models:
ST OPA/UPA 71-141-211-251-321-322
ST OPU/UPU 10-20-30-50
ST HRA 121-201-231-361
ST HRU 20-40.
Supply fan section
Supply fan section composed of one or more EC electric
brushless plug fans xed to the structure of the machine.
Supply air plug fans are electronic commutated, backward
blades made of berglass statically and dynamically bal-
anced with electronic brushless motor, which allow very
high performance levels to be achieved with minimum en-
ergy impact. Direct current brushless motor with external
rotor coupled directly to electronic adjustment; this allows
for continuous fan speed variation according to the control
signal Modbus Master coming from the microprocessor of
the machine. Maintenance-free ball bearings.
Motor Protection: IP 54 (according to EN 60529).
Airow versions
Up-ow unit has a font panel with air inlet grille and air
discharge from the top
Up-ow unit has a closed front panel, suction from the
bottom and air discharge from the top
Down-ow unit has a closed front panel, air inlet from
the top and discharge from the bottom
Frontal-ow unit has an air discharge from front panel
with grille, air inlet from the top.
Filtering section
Self-extinguishing ltering surfaces high efciency; 48 mm
thick.
The lters are installed upstream of the cooling coil in an
inclined position with an ample ltering surface. The low air
speed crossing the coil assures a lower power consump-
tion.
The lters are disposable. They cannot be regenerated or
washed. The machine includes provision for the use of a
differential pressure probe to allow display of the clogged
lter-warning signal.
G4 Class Filters is standard (MERV8 Class)
Classication EN 779:2002
Flame resistance F1 – DIN 5343
Average ltering >90%
Efciency 23-30%
DX circuit/s (standard execution)
The DX circuit/s include:
Electronic expansion valve/s (EEV).
The electronic expansion valve (EEV), servo activated
with a stepper motor laminates the refrigerant ow in
modulating way using a pressure sensor and a temper-
ature as its sensory components. Both sensors are ap-
plied on the refrigerant outlet from the evaporator and
will be read and processed by a controller that calculates
the optimal opening of the valve in real-time to guaran-
tee the actual and appropriate required refrigerant ow
to the evaporator. It is so granted the best refrigerant
overheating.
Filter/s dryer with sigh glass (moisture indicator)
High pressure switch/es with manual reset
Auto reset low-pressure managed by software
Suction and discharge service valves on each circuit
Check valves on the supply and liquid pipes.
The units are supplied with the circuit/s pressurized to 3
bar by nitrogen.
Free cooling and units with water-cooled condenser are
supplied with the complete HFC R410a refrigerant charge.
Valid for units with direct expansion circuit only.
Compressors
Scroll hermetic compressors mounted on vibration isola-
tors. The system includes a manual high-pressure reset
switch; auto reset low-pressure managed by software.
The compressor of models 301-302-662-852 is positioned
in a separate compartment out of the airow. In all other
units, the compressor is inside the airow.
Valid for units direct expansion circuit only.
DX coil
The coil frame is made of hot dipped galvanized metal
sheet with copper tubes expanded into aluminum ns.
Valid for units with direct expansion circuit only.
Chilled water circuit
Standard equipped with 2 or 3 way valve, (ball valve),
modulating actuator for controlling the water ow. Valid for
units with chilled water circuit only.
Coil
The coil frame is made of hot dipped galvanized metal
sheet with copper tubes expanded into aluminum ns.
Valid for units with chilled water circuit only.
Drain pan
Condensate drain tray is made by 304 stainless steel, 1
mm-thickness.
Valid for models:
ST OPA/UPA 361-422-461-512-662-852-932
ST OPU/UPU 60-70-80-110-160-220
ST UGA 932-1342
ST UGU 70-150-230-300.