i-SHWAK V4
Inverter air/water chillers and heat pumps with wall-mounted indoor unit and remote condensing outdoor unit
23
8.6.1
Schema frigorifero i-SHWAK V4 14 e 16
DT
OS
ST
LP
HP
4WV
LR
EEV
FL
FL
FL
C
CLS
Pr
PV
Pr
PV
CP
SE
M
M
IN
OUT
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
VALVE FO INVERTING CYCLE
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
8.7
ELECTRICAL CONNECTIONS
Check if
the power supply meets the unit’s electric nominal data (voltage, phase, frequency) reported on the label in the unit’s
right-side panel. Power supply wiring has to be made according to the wiring diagram enclosed with the unit and according to the
national and international norms in force (provide devices as general magneto-thermic circuit breaker, differential circuit breakers
for each electric single line, proper grounding for the plant, etc.). Power supply cables, the electric protection 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 the technical characteristics (see the chapter 14).
WARNING: The su
pply voltage’s fluctuations can
not exceed ±10% of the nominal value. If this tolerance should
not be respected, please contact our technical department.
WARNING: The power supply should respect the listed limits: failing this, warranty will not be valid immediately.
Before any operation on the unit, be sure that the power supply is disconnected.
Phase, neutral and ground connections should be respected.
Install upstream of each unit an adequate protection and disconnection device of the electric power with delayed
characteristic curve, with at least 3 mm contact opening and with an adequate capacity of breaking and
differential protection.
A good grounding is required; the manufacturer is not responsible for damage caused in case of lack of good
grounding.
Use cables that meet the regulations in force in different countries.
WARNING: The water flow switch of the indoor unit must ALWAYS be connected following the indications listed in
the wiring diagram. Never bridge the water flow switch connections in the terminal board. If the water flow
switch connections may be altered or not properly made, the guarantee will not be valid.
The connections to the terminal blocks should be done only by qualified personnel
Avoid direct contact with the pipes
Be sure, after about 10 minutes of operation the screws on the power supply terminal block that are well fixed.
8.7.1
Indoor unit
x
Remove the unit cover panel.
x
The power supply cable must necessarily pass through its relative cable
hole.
F. Power supply exit
