Electrical Connections - Carrier AQUASNAP JUNIOR 30RA015 User Manual

30RA015

Electrical connections

Remove electric box cover.
Connect the wires to the terminals according to the wiring diagram
and firmly tighten.
• The characteristics of the available power supply must
correspond to the unit nameplate specifications.
• The voltage must be within the limits indicated in the technical
data table.
• The imbalance between voltage phases must always be less
than 2%.
• WARNING:
If the unit operates at a voltage outside the limits given in Table
VIII or with a phase imbalance above 2%, this constitutes
improper use and may affect the warranty.
If the phase imbalance is higher than 2%, contact the local
electricity board immediately.
• Electric wiring must be in accordance with data indicated in this
manual and the wiring diagram and conform to applicable local
and national regulations.
• Ensure that mains supply connection is made through a switch
that disconnects all poles, with contact gap of a least 3 mm.
Electrical connections - three-phase models
L1 L2 L3 N
L1 L2 L3
GB - 8
FUSE
24V
24V FUSE
N
• The mains supply connecting cable must be H07 RN-F
(or higher) type, synthetic rubber insulation with Neoprene
coating, according to EN 60335-1.
IMPORTANT:
• Make earth connection prior to any other electrical
connections.
• Earthing is required by law.
The installer must earth the unit using the terminal marked
with the international earthing symbol.
• Before connecting the supply cable to the line, locate line (L),
lines (L1-L2-L3) and neutral N. Then make connections, as
indicated in the wiring diagram.
WARNING:
The supply line of three-phase units must be three-phase plus
neutral. Omission of the neutral N line could damage the single-
phase supplies.
• The wiring diagram for the electrical supply to remote controls/
interlocks is inside the unit, glued under the cover.
• See Table III for cables sizes and dimensions of the electrical
devices.
Power circuit supply
• The power circuit supply (three-phase plus neutral) must be
connected to the correct terminals (see wiring diagram).
• The auxiliary circuit supply is directly taken from one phase and
neutral and it is proteced by fuse "F".
• If the electrical supply cables L1 (R), L2 (S), L3 (T) are
connected in an incorrect sequence, the power supply is
interrupted after a few seconds by the control, which goes into
alarm status preventing the incorrect compressor rotation.
Note:
After connections have been completed, replace electric box
cover.
1 2 3 4
5
6 7
Terminal block legend, three-phase models
Earth.
L Live power supply.
L1 Live power supply.
L2 Live power supply.
L3 Live power supply.
N Neutral power supply.
NOTE:
The contact rating must be greater than > 20 mA @ 24 V ac.
8