Carrier Aquasnap Junior 30RA Serie Manual De Uso página 14

30RA/30RH "B" Puron
Electrical connections - three-phase models
Unit with accessory AQUASNAP jUNIOR remote control

G L1 L2 L3 N 0
B
A

3
 Unit electrical panel
 Terminal blocks
 Electronic board connectors
 Power supply 400 V 3N~ 50 Hz
 AqUASNAP jUNIOR remote control
A
Main switch
Time-delay fuse or circuit breaker
B
(see table III "Electrical data").
Water - refrigerant heat exchanger
Evaporator
Refrigerant
• The unit includes a brazed plate water-refrigerant heat exchanger.
In the 30RA model the heat exchanger operates as a refrigerant
expansion evaporator whereas in 30RH units it operates as an
evaporator in the summer cycle and as a water-cooled refrigerant
condenser in winter cycle.
• Check if characteristics of the water in the refrigerant circuit are
correct. If necessary, treat water as appropriate.
GB - 12
30RA


24 1 2 5 6 7
4 1 2 5 6 7

Terminal box legend, three-phase models
Earth.
Live power supply.
L
Live power supply.
L1
Live power supply.
L2
Live power supply.
L3
Neutral power supply.
N
Water inlet
Chilled water outlet
Gas

G L1 L2 L3
8

8
 Unit electrical panel
 Terminal blocks
 Electronic board connectors
 Power supply 400 V 3N~ 50 Hz
 AqUASNAP jUNIOR remote control
Main switch
Time-delay fuse or circuit breaker
A
(see table III "Electrical data").
B
Liquid + Gas
CAUTION: In winter water frost may damage the unit.
To avoid freeze-up of the water contained in the system, one of the
following precautions must be taken during the winter cycle:
• drain the water from the system, using the drains in the lower part
of the unit,
or
• add the correct percentage of glycol to the water circuit.
30RH

N 0 24 1 2
B
A
3 4 1 2

NOTE:
7-8 x 0.5 mm² multiple cables. The cable
should be screened of the FROH2R or BEL-
TEN 9842 type.
The screening should be grounded only on
the electric unit panel board.
Condenser
Water inlet
Hot water outlet
Liquid

5 6 7 8
5 6 7 8