Electrical Wiring - Rheem RHMV4821SNACJA Manual De Instalación

■ Gas leakage inspection
After connecting the piping, check the all joints for gas leakage with gas leak detector.

3.12. Electrical wiring

3.12.1. Notes for electrical wiring
• Wiring connections must be performed by a qualifi ed person in accordance with the
specifi cations. The voltage rating for this product is 208/230 V at 60 Hz. It should be
operated within the range of 187 to 253 V.
• Before connecting the wires, make sure the power supply is off.
• Never touch electrical components immediately after the power supply has been
turned off. Electrical shock may occur. After turning off the power, always wait
10 minutes or more before touching electrical components.
• When installing this system in high humidity locations, install using ground fault
equipment breakers (often referred to in other countries as an ELCB [earth leakage
current breaker]) to reduce the risk of leaking current which may result in electric
shock or potential fi re.
• Make sure to perform grounding work. Improper grounding work can cause electric
shocks.
• A circuit breaker is installed in the permanent wiring. Always use a circuit that can
trip all the poles of the wiring and has an isolation distance of at least 1/8 in (3 mm)
between the contacts of each pole.
• Be sure to install a breaker of the specifi ed capacity.
When selecting breaker, comply with the laws and the regulations of each country.
One breaker must be installed on the power supply of the outdoor unit.
Wrong selection and setup of the breaker will cause electric shock or fi re.
• Do not modify power cable, use extension cable or branch wiring. Improper use may
cause electric shock or fi re by poor connection, insuffi cient insulation or over current.
• Do not connect AC power supply to the transmission line terminal board.
Improper wiring can damage the entire system.
• Connect the connector cable securely to the terminal. Check no mechanical force
bears on the cables connected to the terminals. Faulty installation can cause a fi re.
• Use ring terminals and tighten the terminal screws to the specifi ed torques,
otherwise, abnormal overheating may be produced and possibly cause serious
damage inside the unit.
• Make sure to secure the insulation portion of the connector cable with the cable
clamp. Damaged insulation can cause a short circuit.
• Fix cables so that cables do not make contact with the pipes (especially on high
pressure side). Do not make power supply cable and transmission cable come in
contact with valves (Gas).
• Never install a power factor improvement condenser. Instead of improving the power
factor, the condenser may overheat.
• Be sure to perform the grounding work.
Do not connect grounding wires to a gas pipe, water pipe, lightning rod or grounding
wire for a telephone.
- Connection to a gas pipe may cause a fi re or explosion if gas leaks.
- Connection to a water pipe is not an effective grounding method if PVC pipe is
used.
- Connection to the grounding wire of a telephone or to a lightning rod may cause a
dangerously abnormal rise in the electrical potential if lightning strikes.
- Improper grounding work can cause electric shocks.
• Securely install the electrical box cover on the unit. An improperly installed service
panel can cause serious accidents such as electric shock or fi re through exposure to
dust or water.
• If the supply cable is damaged, it must be replaced by the manufacturer, its service
agent or similarly qualifi ed persons in order to avoid a hazard.
• Do not connect the AC power supply to the transmission line terminal board.
Improper wiring can damage the entire system.
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CAUTION
WARNING
CAUTION
• The primary power supply capacity is for the air conditioner itself, and does not
include the concurrent use of other devices.
• Connect the power cables in positive phase sequence. If there is a missing phase
connection, the unit will not operate normally.
• If the electrical power is inadequate, contact your electric power company.
• Install a breaker in a location that is not exposed to high temperatures.
If the temperature surrounding the breaker is too high, the amperage at which the
breaker cuts out may decrease.
• When using an earth leakage breaker that has been designed solely for ground fault
protection, be sure to install a fuse-equipped switch or circuit breaker.
• This system uses an inverter, which means that it must be used an earth leakage
breaker that can handle harmonics in order to prevent malfunctioning of the earth
leakage breaker itself.
• When the electrical switchboard is installed outdoors, place it under lock and key so
that it is not easily accessible.
• Never bundle the power supply cable and connection cable, remote control cable
together. Separate these cable by 2 in (50 mm) or more. Bundling these cables
together will cause miss operation or breakdown.
• Do not use crossover power supply wiring for the outdoor unit.
• If the temperature surrounding the breaker is too high, the amperage at which the
breaker cuts out may decrease.
• When the electrical switchboard is installed outdoors, place it under lock and key so
that it is not easily accessible.
• Start wiring work after closing branch switch and over current breaker.
• Connection cable between indoor unit and outdoor unit is 208/230 V.
• Be sure not to remove thermistor sensor etc. from power wiring and connection
wiring. Compressor may fail if operated while removed.
• Always keep to the maximum length of the connection cable. Exceeding the
maximum length may lead to erroneous operation.
• Do not start operation until the refrigerant is charged completely. The compressor
will fail if it is operated before the refrigerant piping charging is complete.
• The static electricity that is charged to the human body can damage the control PC
Board when handling the control PC Board for address setting, etc.
Keep caution to the following points.
Provide the grounding of Indoor unit, Outdoor unit and Option equipment.
Cut off the power supply (breaker).
Touch the metal section (such as the unpainted control box section) of the indoor or
outdoor unit for more than 10 seconds. Discharge the static electricity in your body.
Never touch the component terminal or pattern on the PC Board.
• Be careful not to generate a spark as follows for using a fl ammable refrigerant.
- Do not remove the fuse while power is on.
- Do not disconnect plug from the wall outlet and the wiring while the power is on.
- It is recommended to position the outlet connection in a high position. Place the
cords so that they do not get tangled.
• Confi rm the indoor unit model name before connecting.
3.12.2. Knockout hole for wiring
CAUTION
• Be careful not to deform or scratch the panel while opening the knockout holes.
• After opening the knockout hole, remove the burr on the edges to prevent snapping
of cables.
It is recommended to apply rust proof paint on the edges to prevent rust.
Knockout holes are provided for wiring.
Service
panel
Knockout holes are provided 3 each in the same size in front, lateral and rear sides.
Front connection Lateral connection Rear connection
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