•Apply only a small amount of ester oil, ether oil, or alkyl benzene to flare connections (for indoor unit).
-Infiltration of a large amount of mineral oil may cause the refrigerant oil to deteriorate.
•Use liquid refrigerant to fill the system.
-If gas refrigerant is used to fill the system, the composition of the refrigerant in the cylinder will change and performance may drop.
•Do not use a refrigerant other than R410A.
-If another refrigerant (R22, etc.) is mixed with R410A, the chlorine in the refrigerant may cause the refrigerant oil to deteriorate.
•Use a vacuum pump with a reverse flow check valve.
-The vacuum pump oil may flow back into the refrigerant cycle and cause the refrigerant oil to deteriorate.
•Do not use the following tools that are used with conventional refriger- ants.
(Gauge manifold, charge hose, gas leak detector, reverse flow check valve, refrigerant charge base, refrigerant recovery equipment)
-If the conventional refrigerant and refrigerant oil are mixed in the R410A, the refrigerant may deteriorate.
-If water is mixed in the R410A, the refrigerant oil may deteriorate.
-Since R410A does not contain any chlorine, gas leak detectors for conven- tional refrigerants will not react to it.
•Do not use a charging cylinder.
-Using a charging cylinder may cause the refrigerant to deteriorate.
•Be especially careful when managing the tools.
-If dust, dirt, or water gets into the refrigerant cycle, the refrigerant may dete- riorate.
1.3. Before installation
Caution:
•Do not install the unit where combustible gas may leak.
-If the gas leaks and accumulates around the unit, an explosion may result.
•Do not use the air conditioner where food, pets, plants, precision instru- ments, or artwork are kept.
-The quality of the food, etc. may deteriorate.
•Do not use the air conditioner in special environments.
-Oil, steam, sulfuric smoke, etc. can significantly reduce the performance of the air conditioner or damage its parts.
•When installing the unit in a hospital, communication station, or similar place, provide sufficient protection against noise.
-Inverter equipment, private power generator,
•Do not install the unit on or over things that are subject to water damage.
-When the room humidity exceeds 80% or when the drain pipe is clogged, condensation may drip from the indoor unit. Perform collective drainage work together with the outdoor unit, as required.
1.4.Before installation (relocation) - electri- cal work
Caution:
•Ground the unit.
-Do not connect the ground wire to gas or water pipes, lightning rods, or telephone ground lines. Improper grounding may result in electric shock.
•Install the power cable so that tension is not applied to the cable.
-Tension may cause the cable to break and generate heat and cause a fire.
•Install a leak circuit breaker, as required.
-If a leak circuit breaker is not installed, electric shock may result.
•Use power line cables of sufficient current carrying capacity and rating.
-Cables that are too small may leak, generate heat, and cause a fire.
•Use only a circuit breaker and fuse of the specified capacity.
-A fuse or circuit breaker of a larger capacity, or the use of a substitute simple steel or copper wire may result in a general unit failure or fire.
•Do not wash the air conditioner units.
-Washing them may cause an electric shock.
•Be careful that the installation base is not damaged by long use.
-If the damage is left uncorrected, the unit may fall and cause personal injury or property damage.
•Install the drain piping according to this Installation Manual to ensure proper drainage. Wrap thermal insulation around the pipes to prevent condensation.
-Improper drain piping may cause water leakage causing damage to furniture and other possessions.
•Be very careful about transporting the product.
-One person should not carry the product. Its weight is in excess of 20 kg [45LBS].
-Some products use PP bands for packaging. Do not use any PP bands as a means of transportation. It is dangerous.
-Do not touch the heat exchanger fins. Doing so may cut your fingers.
-When transporting the outdoor unit, support it at the specified positions on the unit base. Also support the outdoor unit at four points so that it cannot slip sideways.
•Safely dispose of the packing materials.
-Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries.
-Tear apart and throw away plastic packaging bags so that children will not play with them. If children play with a plastic bag which has not been torn apart, they face the risk of suffocation.
1.5. Before starting the test run
Caution:
•Turn on the power at least 12 hours before starting operation.
-Starting operation immediately after turning on the main power switch can result in irreversible damage to internal parts. Keep the power switch turned on during the operational season. Make sure of the phase order of power supply and voltage between each phase.
•Do not touch the switches with wet fingers.
-Touching a switch with wet fingers can result in an electric shock.
•Do not touch the refrigerant pipes during and immediately after opera- tion.
-During and immediately after operation, the refrigerant pipes may be hot or cold, depending on the condition of the refrigerant flowing through the refrig- erant piping, compressor, and other refrigerant cycle parts. Your hands may suffer burns or frostbite if you touch the refrigerant pipes.
•Do not operate the air conditioner with the panels and guards removed.
-Rotating, hot, or
•Do not turn off the power immediately after stopping operation.
-Always wait at least 5 minutes before turning off the power. Otherwise, drainage water leakage or mechanical failure of sensitive parts may occur.
•Do not touch the surface of the compressor during servicing.
-If the unit is connected to a supply and not running, the crank case heater located at the base of the compressor may still be operating.
GB
2. About the product
• This unit uses | • Do not use the existing piping, as it contains chlorine, which is found in con- | |
• Piping for systems using R410A may be different from that for systems using | ventional refrigerating machine oil and refrigerant. This chlorine will deteriorate | |
the refrigerant machine oil in the new equipment. The existing piping must not | ||
conventional refrigerant because the design pressure in systems using R410A | ||
be used as the design pressure in systems using R410A is higher than that in | ||
is higher. Refer to the Data Book for more information. | ||
the systems using other types of refrigerant and the existing pipes may burst. | ||
|
•Some of the tools and equipment used for installation with systems that use other types of refrigerant cannot be used with the systems using R410A. Refer to the Data Book for more information.
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