AIR-COOLED CONDENSING UNITS
Air treatment
38RBS
Options
• Condenser anti-corrosion posttreatment for improved corrosion
resistance in urban, industrial and
rural environments
• Condenser with pre-treated fins for
improved corrosion resistance in
marine environments
• Very low noise level
• Soft starter for reduced compressor
start-up current
• Winter operation for air temperatures
between -10°C and -20°C
• Suction and liquid line valves to
isolate the unit from the rest of the
refrigerant circuit
• JBus, BacNet or LonTalk gateways
• Remote Pro-Dialog+ user interface
• Replaceable filter drier for easy filter
replacement without emptying the
refrigerant circuit
• Temperature sensor kit
• Master/slave direct CCN bus with
39SQ
\\MAINMENU\STATUS
CAPB_T
DEM_LIM
SP
CTRL_PNT
EMSTOP
0
100
4.2
-28.9
dsable
%
%
°C
°C
Circuit B Total Capacity
START/STOP
ENTER
Features
• Eleven sizes with nominal cooling capacities from 40 to 162 kW.
• Units integrate the latest technological innovations: ozone-friendly refrigerant
R410A, scroll compressors, low-noise fans made of a composite material and
auto-adaptive microprocessor control
• Exceptionally quiet latest-generation Flying Bird 4 fans, made of a composite
material. Fan motor controlled by a variable-frequency controller, to allow
reduction of the fan speed, if the extra low noise option 15LS is selected.
Rigid fan installation for reduced start-up noise (Carrier patent).
• Low-noise, reliable scroll compressors with low vibration level. The
compressor assembly is installed on an independent chassis and supported
by anti-vibration mountings. Dynamic suction and discharge piping support,
minimising vibration transmission (Carrier patent).
• Refrigerant circuit includes all components for easy connection to a direct
expansion air handling unit: filter drier, moisture sight glass, high and low
pressure switch, as well as solenoid valves for pumpdown. Two independent
refrigerant circuits from size 38RBS 140 onwards.
• Increased energy efficiency at part load. The refrigerant circuit includes
several compressors connected in parallel. At part load, around 99% of the
operating time, only the compressors that are absolutely necessary operate.
At these conditions the compressors operating are more energy efficient, as
they use the total condenser and evaporator capacity.
• Designed for year-round operation.
• Electrical connections are simplified.
• Exceptional endurance tests.
• AHU Direct expension coil management from 39SQ controller with simple
CCN bus connection.
PRO-DIALOG+
Pro-Dialog+ operator interface
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