Tabla De Contenido; Safety Precautions; Important! Please Read Before Starting; Special Precautions - Rheem RHMV4821SNACJA Manual De Instalación

INSTALLATION MANUAL
PART No. 9374995721
OUTDOOR UNIT
Contents
1. SAFETY PRECAUTIONS ............................................................................................ 2
1.1. IMPORTANT! Please read before starting ......................................................... 2
1.2. Special precautions ............................................................................................ 2
2. ABOUT THIS PRODUCT............................................................................................. 3
2.1. Precautions for using R410A refrigerant ............................................................ 3
2.2. Special tools for R410A refrigerant .................................................................... 3
2.3. Accessories ........................................................................................................ 3
2.4. Operating range ................................................................................................. 3
3. GENERAL SPECIFICATION ....................................................................................... 4
3.1. Selecting circuit breaker and wiring ................................................................... 4
3.2. Selecting the pipe material ................................................................................. 4
3.3. Connection pipe requirement ............................................................................. 4
3.4. Additional charging ............................................................................................. 4
4. INSTALLATION WORK ............................................................................................... 4
4.1. Selecting an installation location ........................................................................ 4
4.2. Installation dimensions ....................................................................................... 4
4.3. Transporting the unit .......................................................................................... 5
4.4. Drain installation ................................................................................................. 6
4.5. Secure the unit ................................................................................................... 6
5. PIPE INSTALLATION .................................................................................................. 6
5.1. Brazing ............................................................................................................... 6
5.2. Flare connection (pipe connection) .................................................................... 6
5.3. Sealing test ........................................................................................................ 7
5.4. Vacuum process ................................................................................................ 7
5.5. Additional charge ............................................................................................... 8
5.6. Gas leakage inspection ...................................................................................... 8
6. ELECTRICAL WIRING ................................................................................................ 8
6.1. Notes for electrical wiring ................................................................................... 8
7. TEST RUN ...................................................................................................................9
8. PUMP DOWN ............................................................................................................ 10
NOTE: This manual describes how to install the air conditioner described above.
Handling and installation shall only be done by professionals as outlined in this
manual.
• Installation must be performed in accordance with the requirement of NEC (National
Electrical Code) and CEC (Canadian Electrical Code) by authorized personnel only.
• This product is manufactured to metric units and tolerances. United States customary
units are provided for reference only. In cases where exact dimensions and tolerances
are required, always refer to metric units.

1. SAFETY PRECAUTIONS

1.1. IMPORTANT! Please read before starting

This air conditioning system meets strict safety and operating standards.
As the installer or service person, it is an important part of your job to install or service the
system so it operates safely and effi ciently.
For safe installation and trouble-free operation, you must:
• Carefully read this instruction booklet before beginning.
• Follow each installation or repair step exactly as shown.
• Observe all local, state, and national electrical codes.
• Pay close attention to all warning and caution notices given in this manual.
This symbol refers to a hazard or unsafe practice which can result in
WARNING:
severe personal injury or death.
This symbol refers to a hazard or unsafe practice which can result in
CAUTION:
personal injury and the potential for product or property damage.
• Hazard alerting symbols
: Electrical
If Necessary, Get Help
These instructions are all you need for most installation sites and maintenance conditions.
If you require help for a special problem, contact our sales/service outlet or your certifi ed
dealer for additional instructions.
In Case of Improper Installation
The manufacturer shall in no way be responsible for improper installation or maintenance
service, including failure to follow the instructions in this document.
En-2
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1.2. Special precautions

When Wiring
ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM.
• Do not supply power to the unit until all wiring and tubing are completed or reconnected
and checked.
• Highly dangerous electrical voltages are used in this system. Carefully refer to
the wiring diagram and these instructions when wiring. Improper connections and
inadequate earthing (grounding) can cause accidental injury or death.
• Earth (Ground) the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause overheating at connection points and
a possible fi re hazard.
When Transporting
Be careful when picking up and moving the indoor and outdoor units. Get a partner to
help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin
aluminum fi ns on the air conditioner can cut your fi ngers.
When Installing...
...In a Ceiling or Wall
Make sure the ceiling/wall is strong enough to hold the unit's weight. It may be necessary
to construct a strong wood or metal frame to provide added support
...In a Room
Properly insulate any tubing run inside a room to prevent "sweating" that can cause
dripping and water damage to walls and fl oors.
...In Moist or Uneven Locations
Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the
outdoor unit. This prevents water damage and abnormal vibration.
...In an Area with High Winds
Securely anchor the outdoor unit down with bolts and a metal frame.
Provide a suitable air baffl e.
...In a Snowy Area (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is higher than drifting snow.
When Connecting Refrigerant Tubing
• Keep all tubing runs as short as possible.
• Use the fl are method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces of the fl are and union tubes before
connecting them, then tighten the nut with a torque wrench for a leak-free connection.
• Check carefully for leaks before opening the refrigerant valves.
NOTE:
Depending on the system type, liquid and gas lines may be either narrow or wide.
Therefore, to avoid confusion the refrigerant tubing for your particular model is specifi ed
as either "small" or "large" rather than as "liquid" or "gas".
When Servicing
• Turn the power OFF at the main circuit breaker panel before opening the unit to check
or repair electrical parts and wiring.
• Keep your fi ngers and clothing away from any moving parts.
• Clean up the site after you fi nish, remembering to check that no metal scraps or bits of
wiring have been left inside the unit being serviced.
• After installation, explain correct operation to the customer, using the operating manual.
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.
• Be sure to read this manual thoroughly before installation.
• The warnings and precautions indicated in this Manual contain important information
pertaining to your safety. Be sure to observe them.
• Hand this Manual, together with the operating manual, to the customer. Request the
customer to keep them on hand for future use, such as for relocating or repairing the
unit.
• Installation of this product must be done by experienced service technicians or
professional installers only in accordance with this manual. Installation by non-
professional or improper installation of the product may cause serious accidents
such as injury, water leakage, electric shock, or fi re. If the outdoor unit is installed in
disregard of the instructions in the installation manual, it will void the manufacturer's
warranty.
• Do not turn on the power until all work has been completed. Turning on the power
before the work is completed can cause serious accidents such as electric shock or
fi re.
• If refrigerant leaks when you are working, ventilate the area. If the leaking refrigerant
is exposed to a direct fl ame, it may produce a toxic gas.
• Installation work must be performed in accordance with regulations, codes, or
standards for electrical wiring and equipment in each country, region, or the installing
place.
• Do not use this equipment with air or any other unspecifi ed refrigerant in the
: Safety/alert
refrigerant lines. Excess pressure can cause a rupture.
• During installation, make sure that the refrigerant pipe is attached fi rmly before you
run the compressor. Do not operate the compressor under the condition of refrigerant
piping not attached properly with 3-way valve open. This may cause abnormal
pressure in the refrigeration cycle that leads to rupture and even injury.
• When installing and relocating the air conditioner, do not mix gases other than the
specifi ed refrigerant (R410A) to enter the refrigerant cycle.
If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to
an abnormally high value and cause rupture, injury, etc.
• For the air conditioner to work appropriately, install it as written in this manual.
.
WARNING
WARNING
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