Unical HP OWER ONE 120, User'S And Installer'S Manual

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5.6 REFRIGERANT DIAGRAM OF HP_OWER ONE 120
IN OUT
DT
OS
ST
LP HP
4WV
LR
EEV
FL FL
FL
C
CLS
Pr Pr
PV
PV
CP
CP
SE
M
P
C COMPRESSOR
CLS
COMPRESSOR LIQUID SEPARATOR
OS OIL SEPARATOR
ST COMPRESSOR INLET TEMPERATURE
DT COMPRESSOR OUTLET TEMPERATURE
HP HIGH PRESSURE TRANSDUCER
Pr HIGH PRESSURE FLOW SWITCH
LP LOW PRESSURE TRANSDUCER
4WV INVERTING CYCLE VALVE
LR LIQUID RECEIVER
EEV ELECTRONIC EXPANSION VALVE
FL FILTER
M AXIAL FAN
SE
OUTDOOR AIR TEMPERATURE
P CIRCULATOR ON BOARD UNIT
IN WATER INLET TEMPERATURE
OUT WATER OUTLET TEMPERATURE
CP CAPILLARY
5.7 REFRIGERANT DIAGRAM OF HP_OWER ONE 140-160
IN OUT
DT
OS
ST
LP
HP
4WV
LR
EEV
FL FL
FL
C
CLS
Pr
PV
Pr
PV
CP
SE
M M
P
C COMPRESSOR
CLS
COMPRESSOR LIQUID SEPARATOR
OS OIL SEPARATOR
ST COMPRESSOR INLET TEMPERATURE
DT COMPRESSOR OUTLET TEMPERATURE
HP HIGH PRESSURE TRANSDUCER
Pr
HIGH PRESSURE FLOW SWITCH
LP LOW PRESSURE TRANSDUCER
4WV INVERTING CYCLE VALVE
LR LIQUID RECEIVER
EEV ELECTRONIC EXPANSION VALVE
FL FILTER
M AXIAL FAN
SE OUTDOOR AIR TEMPERATURE
P CIRCULATOR ON BOARD UNIT
IN WATER INLET TEMPERATURE
OUT WATER OUTLET TEMPERATURE
CP CAPILLARY
5.8 ELECTRICAL CONNECTIONS
Check out that the power supply meets the unit’s electric nominal data (tension, phases, frequency) reported on the label in the
unit’s side panel. Power connections have to be made in accordance to the wiring diagram enclosed with the unit and in
conformity with the national and international norms in force (providing equipment as general magnetothermic circuit breaker,
differential circuit breakers for each electric line, proper grounding for the plant, etc.). Power cables, electric protections and line
fuses have to be sized according to the specifications listed in the wiring diagram enclosed with the unit and in the electrical data
contained in the table of technical characteristics (see Paragraph 10.1).
WARNING: The electrical panel is located under the coping plate. It is necessary to respect the minimum clearances
given in section 5.3 in order to be able to connect the wires.
WARNING: Installer has to provide a general circuit breaker (for example a magnetothermic circuit breaker) at the
beginning of unit circuit system.
WARNING: The supply voltage’s fluctuations cannot exceed ±10% of the nominal value. Should this tolerance not be
respected, please contact our technical department.
WARNING: The power supply have to respect the listed limits: failing this, warranty will terminate immediately.
Before any operation on the unit, be sure that the power supply is disconnected.
WARNING: The water flow switch (B component in the previous hydraulic circuit and factory installed) have ALWAYS
to be connected following the indications listed in the wiring diagram. Never bridge the water flow switch
connections in the terminal board. Should the water flow switch connections altered or not properly made, the
guarantee will be invalidated.
WARNING: The remote control panel is connected to the water chiller by means of no.4 twisted shielded wires having
a 1,5 mm
2
section, plus the Modbus ground conductor (eg CAT5 STP cable, connect the shield to ground at one end of
the cable. The power supply cables have to be separated from the remote control wires. The maximum distance is
50m.