Electrical Connection Of Rcim Units - Hitachi RCI-1.0FSN4 Service Manual

4 Electrical and control settings
Unit electrical wiring and connection

For RCI-FSN4
Cord clamp
Wiring support plate
Electrical box
PCB
(Printed circuit
board)
Electrical box
cover
Firmly secure the cables using a tie inside the electrical box.
Cover the cables and the hole using a sealant to protect them from condensation and insects.
Test runs
!
C A U T I O N
• Be careful during the test runs, as some of the safety functions remain disabled: the units operate for two hours without switching off
via the thermostat. The three-minute compressor protection is not enabled during the test.
• Secure the rubber bushes to the panel using adhesive when the outdoor unit ducts are not used.
• The compressor remains at a standstill during forced stoppage.

4.1.5 Electrical connection of RCIM units

Before proceeding to any electrical connection
1 Turn off the power supply switches before starting work and fit the appropriate locks and safety warnings.
2 Wait 5 minutes after turning off the power supply switches.
3 Check that the fans on the indoor and outdoor units are at a standstill before starting work.
?
N O T E
• The electrical power for the unit must involve a specific power line, with an exclusive power control switch and residual current breaker,
installed in line with local or national safety regulations.
• Check that the electrical power line has enough capacity to supply the unit. Its length, the cable diameter and their protection (sleeve
or jacket) must be appropriate for the unit.
• For further information, always consider the current regulations in the country where the unit is to be installed.
!
C A U T I O N
• Risk of fire: cables must never touch the refrigerant pipes, printed circuit boards (PCB), sharp edges or electrical components inside
the unit to avoid damaging them.
• Loose connection terminals may lead to cable and terminal overheating. The unit may operate incorrectly, leading to a risk of fire.
Check that the cables are firmly secured to the connection terminals.
136 SMGB0099 rev.0 - 12/2016
Piping cover
Wiring connection hole
Screw for wiring
support plate under
piping cover
Screw
(for electrical box cover)
Earth
screw
Power source cable
(1~ 230V 50Hz)
(0.75 mm )
2
Max current: 5 A
Remote control
switch cable
Transmission wiring (0.75 mm
Earth terminal
Terminal board (TB1)
Terminal board (TB2)
)
2
Electrical box