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3
S
AFETY
CONSIDERATIONS
Make certain that all electrical work is carried out by qualified
personnel according to the local laws and regulations and this
The precautions listed here are divided into the following two types.
installation manual, using a separate circuit.
Both cover very important topics, so be sure to follow them carefully.
Insufficient capacity of the power supply circuit or improper
electrical construction may lead to electric shocks or fire.
Meanings of
DANGER, WARNING, CAUTION
and
NOTE
symbols.
Be sure to install a ground fault circuit interrupter according to
DANGER
local laws and regulations.
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
Failure to install a ground fault circuit interrupter may cause
electric shocks and fire.
WARNING
Make sure that all wiring is secure, using the specified wires and
ensuring that external forces do not act on the terminal
Indicates a potentially hazardous situation which, if not
connections or wires.
avoided, could result in death or serious injury.
Incomplete connection or fixing may cause a fire.
CAUTION
When wiring the power supply, form the wires so that the
Indicates a potentially hazardous situation which, if not
frontside panel can be securely fastened.
avoided, may result in minor or moderate injury. It may also
If the frontside panel is not in place, overheat of the terminals,
be used to alert against unsafe practices.
electric shocks or a fire may be caused.
NOTE
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After completing the installation work, check to make sure that
there is no leakage of refrigerant gas.
Indicates situations that may result in equipment or
property-damage accidents only.
Never directly touch any accidental leaking refrigerant. This
could result in severe wounds caused by frostbite.
Danger
Do not touch the refrigerant pipes during and immediately after
Before touching electric terminal parts, turn off power switch.
When service panels are removed, live parts can be easily
operation as the refrigerant pipes may be hot or cold, depending
on the condition of the refrigerant flowing through the refrigerant
piping, compressor and other refrigerant cycle parts. Your hands
touched by accident.
may suffer burns or frostbite if you touch the refrigerant pipes. To
Never leave the unit unattended during installation or servicing
avoid injury, give the pipes time to return to normal temperature
when the service panel is removed.
or, if you must touch them, be sure to wear proper gloves.
Do not touch water pipes during and immediately after operation
Do not touch the internal parts (pump, backup heater, etc.)
as the pipes may be hot. Your hand may suffer burns. To avoid
during and immediately after operation.
injury, give the piping time to return to normal temperature or be
Your hands may suffer burns if you touch the internal parts. To
sure to wear proper gloves.
avoid injury, give the internal parts time to return to normal
Do
not touch any switch with wet fingers. Touching a switch with
temperature or, if you must touch them, be sure to wear proper
wet fingers can cause electrical shock.
gloves.
Before touching electrical parts, turn off all applicable power
supply.
Caution
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For use of units in applications with temperature alarm settings it
Warning
is advised to foresee a delay of 10 minutes for signalling the
Tear apart and throw away plastic packaging bags so that
children will not play with them.
Children playing with plastic bags face danger of death by
suffocation.
alarm in case the alarm temperature is exceeded. The unit may
stop for several minutes during normal operation for "defrosting
of the unit" or when in "thermostat-stop" operation.
Ground the unit.
Safely dispose of packing materials. Packing materials, such as
nails and other metal or wooden parts, may cause stabs or other
Grounding resistance should be according to local laws and
regulations
injuries.
Do not connect the ground wire to gas or water pipes,
Ask your dealer o
r qualified personnel to carry out installation work.
lightning conductor or telephone ground wire.
Do not install the machine by yourself.
Incomplete grounding may cause electric shocks.
Improper installation may result in water leakage, electric shocks
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Gas pipe.
or fire.
Ignition or explosion may occur if the gas leaks.
Perform installation work in accordance with this installation
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Water pipe.
manual.
Hard vinyl tubes are not effective grounds.
Improper installation may lead to water leakage, electric shocks
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Lightning conductor or telephone ground wire.
Electric potential may rise abnormally if struck by a lightning
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Be sure to use only the specified accessories and parts for
bolt.
installation work.
Install the power wire at least 3 feet (1 meter) away from
Failure to use the specified parts may result in water leakage,
televisions or radios to prevent image interference or noise.
electric shocks, fire, or the unit falling.
(Depending on the radio waves, a distance of 3 feet (1 meter)
Install the unit on a foundation that can withstand its weight.
may not be sufficient to eliminate the noise.)
Insufficient strength may result in the fall of equipment and
Do not rinse the unit. This may cause electric shocks or fire.
causing injury.
Do not install the unit in places such as the following:
Carry out the specified installation work in consideration of
strong winds, hurricanes, or earthquakes.
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Where there is mist of mineral oil, oil spray or vapour.
Plastic parts may deteriorate, and cause them to fall out or
Improper installation work may result in accidents due to fall of
water to leak.
equipment.
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Where corrosive gas, such as sulphurous acid gas, is
produced.
Corrosion of copper pipes or soldered parts may cause the
refrigerant to leak.
EDLQ036~054B EBLQ036~054BA6VJU1
Installation manual
Unit for air to water heat pump system
4PW56182-1
