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DAIKIN ROOM AIR CONDITIONER
INSTALLATION MANUAL
R410A Split Series
Installation manual
Manuel dinstallation
Manual de instalación
Español Français English
MODELS
RX30NMVJU
RX36NMVJU
RK30NMVJU
RK36NMVJU
Contents |
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Safety Considerations .................................... |
1 |
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Accessories ..................................................... |
3 |
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Precautions for Selecting a Location ............ |
3 |
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Precautions on Installation ............................ |
4 |
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Outdoor Unit Installation Diagram ................. |
4 |
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Installation Space Requirements ................... |
5 |
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Outdoor Unit Installation ................................ |
5 |
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1. |
Installing the outdoor unit............................................. |
5 |
2. |
Drain work (only for heat pump models)...................... |
5 |
3. |
Flaring the pipe end..................................................... |
6 |
4. |
Refrigerant piping......................................................... |
6 |
5. |
Pressure test and evacuating system.......................... |
7 |
6. |
Refilling refrigerant....................................................... |
8 |
7. |
Refrigerant piping work ............................................... |
8 |
Wiring ............................................................... |
9 |
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Facility Setting |
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(cooling at low outdoor temperature) ............ |
11 |
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Pump Down Operation .................................... |
12 |
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Trial Operation and Testing ............................ |
12 |
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1. |
Trial operation and testing............................................ |
12 |
2. |
Test items..................................................................... |
12 |
Safety Considerations
Read these Safety Considerations for Installation carefully before installing an air conditioner or heat pump. After completing the installation, make sure that the unit operates properly during the startup operation.
Instruct the user on how to operate and maintain the unit. Inform users that they should store this installation manual with the operation manual for future reference.
Always use a licensed installer or contractor to install this product. Improper installation can result in water or refrigerant leakage, electric shock, fire, or explosion.
Meanings of DANGER, WARNING, CAUTION, and NOTE
Symbols:
DANGER Indicates an imminently hazardous
situation which, if not avoided, will result in death or serious injury.
WARNING Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury. CAUTION Indicates a potentially hazardous
situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against
unsafe practices.
NOTE Indicates situations that may result in equipment or property-damage accidents only.
DANGER
•Refrigerant gas is heavier than air and replaces oxygen. A massive leak can lead to oxygen depletion, especially in basements, and an asphyxiation hazard could occur leading to serious injury or death.
•Do not ground units to water pipes, gas pipes, telephone wires, or lightning rods as incomplete grounding can cause a severe shock hazard resulting in severe injury or death. Additionally, grounding to gas pipes could cause a gas leak and potential explosion causing severe injury or death.
•If refrigerant gas leaks during installation, ventilate the area immediately. Refrigerant gas may produce toxic gas if it comes into contact with fire. Exposure to this gas could cause severe injury or death.
•After completing the installation work, check that the refrigerant gas does not leak throughout the system.
•Do not install unit in an area where flammable materials are present due to risk of explosions that can cause serious injury or death.
•Safely dispose all packing and transportation materials in accordance with federal/state/local laws or ordinances. Packing materials such as nails and other metal or
wood parts, including plastic packing materials used for transportation may cause injuries or death by suffocation.
WARNING
•Only qualified personnel must carry out the installation work. Installation must be done in accordance with this installation manual. Improper installation may result in water leakage, electric shock, or fire.
•When installing the unit in a small room, take measures to keep the refrigerant concentration from exceeding allowable safety limits. Excessive refrigerant leaks, in the event of an accident in a closed ambient space, can lead to oxygen deficiency.
•Use only specified accessories and parts for installation work. Failure to use specified parts may result in water leakage, electric shock, fire, or the unit falling.
•Install the air conditioner or heat pump on a foundation strong enough that it can withstand the weight of the unit.
A foundation of insufficient strength may result in the unit falling and causing injuries.
•Take into account strong winds, typhoons, or earthquakes when installing. Improper installation may result in the unit falling and causing accidents.
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■English |
•Make sure that a separate power supply circuit is provided for this unit and that all electrical work is carried out by qualified personnel according to local, state, and national regulations. An insufficient power supply capacity or improper electrical construction may lead to electric shock or fire.
•Make sure that all wiring is secured, that specified wires are used, and that no external forces act on the terminal connections or wires. Improper connections or installation may result in fire.
•When wiring, position the wires so that the electrical wiring box cover can be securely fastened. Improper positioning of the electrical wiring box cover may result in electric shock, fire, or the terminals overheating.
•Before touching electrical parts, turn off the unit.
•The circuit must be protected with safety devices in accordance with local and national codes, i.e. a fuse, a circuit breaker, a disconnect or a GFCI.
•Securely fasten the outdoor unit terminal cover (panel). If the terminal cover/panel is not installed properly, dust or water may enter the outdoor unit causing fire or electric shock.
•When installing or relocating the system, keep the refrigerant circuit free from substances other than the specified refrigerant (R410A) such as air. Any presence of air or other foreign substance in the refrigerant circuit can cause an abnormal pressure rise or rupture, resulting in injury.
•Do not change the setting of the protection devices. If the pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or parts other than those specified by Daikin are used, fire or explosion may occur.
CAUTION
•Do not touch the switch with wet fingers.Touching a switch with wet fingers can cause electric shock.
•Do not allow children to play on or around the unit to prevent injury.
•The heat exchanger fins are sharp enough to cut.To avoid injury wear gloves or cover the fins while working around them.
•Do not touch the refrigerant pipes during and immediately after 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 may suffer burns or frostbite if you touch the refrigerant pipes. To avoid injury, give the pipes time to return to normal temperature or, if you must touch them, be sure to wear proper gloves.
•Install drain piping to proper drainage. Improper drain piping may result in water leakage and property damage.
•Insulate piping to prevent condensation.
•Be careful when transporting the product.
•Do not turn off the power immediately after stopping operation. Always wait for at least 5 minutes before turning off the power. Otherwise, water leakage may occur.
•Do not use a charging cylinder. Using a charging cylinder may cause the refrigerant to deteriorate.
•Refrigerant R410A in the system must be kept clean, dry, and tight.
(a)Clean and Dry -- Foreign materials (including mineral oils such as SUNISO oil or moisture) should be prevented from getting into the system.
■English
(b)Tight -- R410A does not contain any chlorine, does not destroy the ozone layer, and does not reduce the earth’s protection again harmful ultraviolet radiation. R410A can contribute to the greenhouse effect if it is released.
Therefore take proper measures to check for the tightness of the refrigerant piping installation. Read the chapter Refrigerant Piping Work and follow the procedures.
•Since R410A is a blend, the required additional refrigerant must be charged in its liquid state. If the refrigerant is charged in a state of gas, its composition can change and the system will not work properly.
•The indoor unit is for R410A. See the catalog for indoor models that can be connected. Normal operation is not possible when connected to other units.
•Remote controller (wireless kit) transmitting distance can be shorter than expected in rooms with electronic fluorescent lamps (inverter or rapid start types). Install the indoor unit far away from fluorescent lamps as much as possible.
•Indoor units are for indoor installation only. Outdoor units can be
installed either outdoors or indoors. This unit is for indoor use.
•Do not install the air conditioner or heat pump in the following locations:
(a)Where a mineral oil mist or oil spray or vapor is produced, for example, in a kitchen.
Plastic parts may deteriorate and fall off or result in water leakage.
(b)Where corrosive gas, such as sulfurous acid gas, is produced.
Corroding copper pipes or soldered parts may result in refrigerant leakage.
(c)Near machinery emitting electromagnetic waves.
Electromagnetic waves may disturb the operation of the control system and cause the unit to malfunction.
(d)Where flammable gas may leak, where there is carbon fiber, or ignitable dust suspension in the air, or where volatile flammables such as thinner or gasoline are handled. Operating the unit in such conditions can cause a fire.
•Take adequate measures to prevent the outdoor unit from being used as a shelter by small animals. Small animals making contact with electrical parts can cause malfunctions, smoke, or fire. Instruct the user to keep the area around the unit clean.
NOTE
•The outdoor unit should be positioned where the unit and power supply wires (breaker panel to outdoor unit) are at least 10ft (3m) away from any televisions or radios. (The unit may cause interference with the picture or sound.) Depending on the radio waves, a distance of 10ft (3m) may not be sufficient to eliminate the noise.
•Dismantling the unit, treatment of the refrigerant, oil and additional parts must be done in accordance with the relevant local, state, and national regulations.
•Do not use the following tools that are used with conventional refrigerants: gauge manifold, charge hose, gas leak detector, reverse flow check valve, refrigerant charge base, vacuum gauge, or refrigerant recovery equipment.
•If the conventional refrigerant and refrigerator oil are mixed in R410A, the refrigerant may deteriorate.
•This air conditioner or heat pump is an appliance that should not be accessible to the general public.
•As design pressure is 604 psi, the wall thickness of fieldinstalled pipes should be selected in accordance with the relevant local, state, and national regulations.
RN001-U
2
English
Accessories
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B |
Drain socket* |
A |
Installation manual |
1 |
1 |
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This is at the bottom of the packaging. |
C |
Drain cap (1)* |
D |
Drain cap (2)* |
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6 |
3 |
E |
Warranty |
1 |
*Only for heat pump models. |
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Precautions for Selecting a Location
1)Choose a place solid enough to bear the weight and vibration of the unit, where the operating sound will not be amplifi ed.
2)Choose a location where the hot air discharged from the unit or the operating sound will not cause a nuisance to the neighbors of the user.
3)Avoid locations, such as near bedrooms, where the operating sound may cause disturbance.
4)There must be suffi cient space to carry the unit into and out of the site.
5)There must be suffi cient space for air passage and no obstructions around the air inlet and the air outlet.
6)The site must not be prone to fl ammable gas leaks in the surrounding area.
7)In coastal areas or other places with a salty atmosphere or one containing sulfate gas, corrosion may shorten the life of the air conditioner.
8)Since water will fl ow from the drain of the outdoor unit, do not place under the unit anything which must be kept away from moisture.
NOTE
Cannot be installed suspended from a ceiling or stacked.
CAUTION
When operating the air conditioner in a low outdoor ambient temperature, be sure to follow the instructions described below.
•To prevent exposure to wind, install the outdoor unit with its suction side facing the wall.
•Never install the outdoor unit at a site where the suction side may be exposed directly to wind.
•To prevent exposure to wind, it is recommended to install a baffl e plate on the air discharge side of the outdoor unit.
•In heavy snow areas, select an installation site where the snow will not affect the unit.
•Construct a large canopy.
•Construct a pedestal.
Install the unit high enough off the ground to prevent burying in snow.
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Precautions on Installation
•Check the strength and level of the installation surface so that the unit does not cause any operating vibrations or noise after installation.
•Fix the unit in place securely using foundation bolts, as in the figure. (Prepare 4 sets of 5/16 inch (M8) or 3/8 inch (M10) foundation bolts, nuts and washers; all separately available.)
•It is best to screw in the foundation bolts until their ends are 3/4 inch (20mm) from the foundation surface.
English
3/4” (20mm)
Outdoor Unit Installation Diagram
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Max. allowable piping length |
98-1/2ft (30m) |
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** |
Min. allowable piping length |
10ft (3m) |
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Max. allowable piping height |
65-5/8ft (20m) |
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* |
Additional refrigerant required for refrigerant |
0.32oz/ft (30g/m) |
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pipe exceeding 32.8ft (10m) in length. |
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Gas pipe |
O.D. 5/8 inch |
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(15.9mm) |
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Liquid pipe |
O.D. 1/4 inch (6.4mm) |
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Wrap the insulation pipe with
finishing tape from bottom to top.
*Be sure to add the proper amount of additional refrigerant. Failure to do so may result in reduced performance.
**The suggested shortest pipe length is 10ft (3m), in order to avoid noise from the outdoor unit and vibration.
(Mechanical noise and vibration may occur depending on how the unit is installed and the environment in which it is used.)
Allow 11-13/16” (300mm) of work space below the ceiling surface.
CAUTION
Keep the piping length between 10ft (3m) and 98-1/2ft (30m).
Allow space for piping and electrical servicing.
In sites with poor drainage, use block bases for the outdoor unit.
Adjust foot height until the unit is level. Otherwise, water leakage or pooling of water may occur.
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5/8 |
inch |
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(Foot |
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bolt- |
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hole |
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(600mm) |
4- |
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centers) |
15/16 |
inch |
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(125mm) |
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(From |
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unit’s |
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side) |
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9- |
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13/16” |
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(250mm) |
from wall |
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inch |
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hole |
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13 |
(346mm) |
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-5/8 |
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- |
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bolt |
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(Foot |
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centers) |
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Stop valve cover
How to remove the stop valve cover
1)Remove the screw on the stop valve cover.
2)Slide the stop valve cover downward to remove it.
How to attach the stop valve cover
1)Insert the upper part of the stop valve cover into the outdoor unit.
2)Tighten the screw.
Where there is a danger of the unit falling, use foot bolts, or wires.
■English |
4 |
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