Epsilon Echos +
5
TECHNICAL FEATURES
STRUCTURE
In galvanized sheet steel and painted with polyester powders
RAL 7035 at 180 °C, which confer high resistance to at-
mospheric agents. The panels can be removed easily to allow
total access to the internal components.
COMPRESSORS
The compressors are “twin rotary” or “scroll” with inverter
controlled brushless DC motor, operating with R410A and
power supply of 400-460V/3ph/50-60Hz. The compressors
are provided with integrated thermal overload protection and
acoustic hood.
The compressor motor control driver is provided with integral
electronic protection against overtemperature, overcurrent,
over or under-voltage with absence of one or more phases.
The electronic control of the inverter is provided with automa-
tic soft-start system and continuous control of the compressor
curve to prevent and correct its use beyond the maximum
allowed limits.
FANS
Helical fans coupled directly to the 6-pole electric motor with
external rotor, IP 54 degree of protection. Each fan has shaped
nozzles and is fitted with protection grille in compliance with
UNI EN 294.
SOURCE SIDE EXCHANGER
This comprises a battery with copper pipes and aluminum gills
with large exchange surface. A metal mesh protects the fin-
ned core.
USER SIDE EXCHANGER
Exchanger with AISI 316 stainless steel braze-welded plates,
insulated with a closed cell foam coating. The heat exchanger
has a temperature probe for anti-freeze protection and a blade
flow meter as per standard.
Not present in LE version.
REFRIGERANT CIRCUIT
BASIC VERSION
Includes: charge connection on the liquid and intake lines,
liquid sight-glass, filter/dryer, electronic thermostatic valve, li-
quid line solenoid valve, pressure transducer, high pressure
safety pressure switch and safety valve (only for /HP version).
/LE VERSION
Includes: charge connection on the liquid and intake lines,
liquid sight-glass, filter/dryer, electronic thermostatic valve, li-
quid line solenoid valve, pressure transducer, high pressure
safety pressure switch, safety valve (only for /LE/HP version),
liquid receiver, delivery oil separator, valves (split type) on suc-
tion and liquid line.
ELECTRIC CONTROL BOARD
With general isolating device, protection of the power and
auxiliary circuits. Microprocessor management of the unit with
main functions shown on display.
The electric control board is made up from:
• Main isolating switch and automatic circuit breakers protec-
ting the auxiliary and power circuits
• Condensation/evaporation control with fan rev. regulator
• Pump relay or motor protector and contactor (for units with
hydronic module)
• Voltage-free contacts for general alarm
• Microprocessor for control
The controller allow the following features:
• Water temperature regulation with inlet control
• Anti-freeze protection
• Compressor timing
• High pressure pre-alarm management
• Alarm signals
• Alarms reset
• Remote ON-OFF from digital input
• Summer/Winter selection from digital input
• 0-10V or 4-20mA for external management of compressor
modulation (only for /LE and /LE/HP versions)
Display of controller allow the visualization of following para-
meters:
• Temperature of the outlet water
• Condensation temperature
• Set temperature and differentials set-point
• Description of the alarms
• Compressor and pump timer functioning
CHECKS AND SAFETY DEVICES
• Functioning probe for detecting the temperature of the
inlet water
• Antifreeze probe at evaporator outlet connected to anti-
freeze alarm (automatic reset, with limited thresholds)
• High pressure switch (with manual reset)
• Mechanical flow-switch supplied as kit per standard
• Condensation/evaporation pressure control with rev. regu-
lator
• High-pressure safety valve (only for /HP and /LE/HP versions)
• Compressor over-heating protection (managed directly by
driver).
INSPECTION
The units are inspected in the factory and supplied complete
with oil and refrigerant fluid.
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