Technical information

6
Features and advantages
Technical Specifications
These units are supplied completely factory-assembled and
with all refrigerant tubing and wiring ready for installation
on the job site. After mounting, these units must go through
an operational test with water. Refrigerant leaks will also be
checked during this process.
Sheeting casing
The units are made of galvanized steel sheeting and anticor-
rosion nuts and bolts. Panels can be removed for access to
internal components. The casing parts are painted with white
RAL9001 oven-baked polymerized enamel.
Compressors
Two hermetic Scroll compressors mounted in tandem on rails
and antivibratory supports are used (except for model 40,
which contains one single compressor). Both compressors
are connected for operation with one single cooling circuit.
Start-up is carried out by two independent starters. These
compressors are equipped with
mechanical elements that protect them against high operat-
ing temperatures. The sump heaters operate only when the
compressor is inoperative.
Indoor heat exchanger
Comprises a stainless steel plate exchanger, adequately in-
sulated by a layer of closed-cell elastomer foam. Includes an
antifreeze heater monitored by the controller. The refrigerant
side of said exchanger accepts an operating pressure of 45
bar, whereas the water side accepts 10 bar. When the unit
includes a hydro kit, maximum admissible pressure on the
water side is 6 bar (adjustment of the tank relief valve).
Outdoor heat exchanger
Made up of two notched aluminium blue fin coils and grooved
copper tubing mechanically expanded within the fin assem-
bly.
Fans
Of the axial and low sound level type. Equipped with single-
phase motors with IP54 protection. These motors allow speed
control by means of a phase cut-out shifter controlled by
the unit controller. This allows unit operation at low ambient
temperatures (-10°C).
On cool only units with an optional low ambient temperature
kit can reach -18°C. On heat pumps, the fan will remain in-
operative during defrosts.
Electric and control panel
Located at the front of the unit, and with IP44 protection. The
operating and control components are factory mounted, wired
and tested. The door of this control panel is equipped with a
locking isolator that turns power supply off. Inside we find the
contactors for compressors and the pump, the transformer,
magneto-thermal protectors, controller electronic plates,
speed control, connecting strip and the keyboard-display
with the unit controls.
Control keyboard-display
This device is accessible through an external leak-tight plastic
cover. This is an easy-to-use control with three access levels:
Direct, User (password) and Factory (password). For further
information, please see Operating Instructions.
Cooling circuit
The cool only unit cooling circuit includes: expansion valve,
filter-dryer, liquid sight glass, high and low pressure switches,
service valves for isolating the condensing unit, and Schrader
valves on the high and low sides. The heat pump model also
includes, in addition, a four-way valve (energized in summer
cycle and during defrosts), retaining valves, a heat cycle ex-
pansion valve and a liquid tank. The suction tubing is coated
with closed-cell elastomer.
Hydro kit (pack)
These units include a pack assembled with the components
of a hydro kit. This assembly is located within the unit frame
and does not increase the footprint of same. It includes the
following components: Lined buffer tank and with an anti-
freeze heater, centrifugal pump, expansion vessel charged
with nitrogen at 1.5 bar, relief valve set to 6 bar, water circuit
Features Advantages
R-410A refrigerant Does not harm the ozone layer.
Minimum dimensions Minimum footprint.
Low height and weight Space for installing on terraces.
Factory tested equipment Operating quality control.
Accessibility Easy maintenance.
Main switch Operator safety.
Microprocessor for
control and alarms
Easy and safe operation.
Manufactured to ISO
9001
High quality level.
Variable speed fan Low noise level and condensation control.
Hydro kit For installations with low water volume.
Connection for
communications
Ideal for building management.