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Les langues disponibles
9
Overview of the unit
9.7
Field wiring
Warning:
A main switch or other means of
disconnection, having a contact
separation in all poles, must be
incorporated in the fixed wiring
in accordance with relevant local
laws and regulations. Switch off
the power supply before making
any connections. Use only copper
wires. Never squeeze bundled
cables and make sure they do not
come in contact with the piping
and sharp edges. Make sure no
external pressure is applied to the
terminal connections. All field wiring
and components must be installed
by a licensed electrician and must
A
comply with relevant local laws and
regulations.
The field wiring must be carried
out in accordance with the wiring
diagram supplied with the unit and
the instructions given below.
Be sure to use a dedicated power
supply. Never use a power supply
shared by another appliance.
Be sure to establish a ground.
Do not ground the unit to a utility
pipe, surge protector, or telephone
ground. Incomplete grounding may
cause electrical shock.
Be sure to install a ground fault
circuit interrupter (30 mA). Failure to
do so may cause electrical shock.
Be sure to install the required fuses
or circuit breakers.
Heat Pump Monobloc Inverter / User Manual
9.7.1
Precautions on electrical
wiring work
•
Fix cables so that cables do not make contact
with the pipes (especially on the high pressure
side).
•
Secure the electrical wiring with cable ties
as shown in figure so that it does not come
in contact with the piping, particularly on the
high-pressure side.
•
Make sure no external pressure is applied to
the terminal connectors.
•
When installing the ground fault circuit
interrupter make sure that it is compatible
with the inverter (resistant to high frequency
electrical noise) to avoid unnecessary opening
of the ground fault circuit interrupter.
Note:
C
The ground fault circuit interrupter
must be a high- speed type breaker
of 30 mA (<0.1 s).
•
This unit is equipped with an inverter.
Installing a phase advancing capacitor not
only will reduce the power factor improvement
effect, but also may cause abnormal heating
of the capacitor due to high-frequency waves.
Never install a phase advancing capacitor as
it could lead to an accident.
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