RDZ FLOOR-S, Инструкция по установке и техническому обслуживанию

Страница: 24 / 60

US FLOOR / FLOOR
Minichiller inverter Duo
23
7.6.1 Refrigerant diagram for models 06 and 09
SE
EEV
LR
IN OUT
4WV
DT
LP HP
ST
M
P
C
LS
FL FL
CLS
Pr
UNITA' INTERNA
INDOOR UNIT
UNITA' ESTERNA
OUTDOOR UNIT
C COMPRESSOR
CLS COMPRESSOR LIQUID SEPARATOR
ST COMPRESSOR INLET TEMPERATURE
DT COMPRESSOR OUTLET TEMPERATURE
HP HIGH PRESSURE TRANSDUCER
Pr HIGH PRESSURE FLOW SWITCH
LP LOW PRESSURE TRANSDUCER
LS LIQUID SEPARATOR (only for the model 09)
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
7.6.2 Refrigerant diagram for models 12 and 16
SE
EEV
LR
IN OUT
4WV
DT
LP HP
ST
M
P
C
LS
OS
FL FL
NRV
CLS
Pr
UNITA' INTERNA
INDOOR UNIT
UNITA' ESTERNA
OUTDOOR UNIT
C COMPRESSOR
CLS COMPRESSOR LIQUID SEPARATOR
OS OIL SEPARATOR (only for the models 12 and 16)
ST COMPRESSOR INLET TEMPERATURE
DT COMPRESSOR OUTLET TEMPERATURE
HP HIGH PRESSURE TRANSDUCER
Pr HIGH PRESSURE FLOW SWITCH
LP LOW PRESSURE TRANSDUCER
LS LIQUID SEPARATOR
4WV VALVE FO INVERTING CYCLE
LR LIQUID RECEIVER
EEV ELECTRONIC EXPANSION VALVE
NRV NO RETURN VALVE (only on some models)
FL FILTER
M AXIAL FAN
SE OUTDOOR AIR TEMPERATURE
P CIRCULATOR ON BOARD UNIT
IN WATER INLET TEMPERATURE
OUT WATER OUTLET TEMPERATURE
CP CAPILLARY
7.7 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 equipment 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 15).
WARNING: The supply voltage’s fluctuations cannot 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