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1.1. 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.
- The inverter equipment, private power generator, high-frequency medical
equipment, or radio communication equipment may cause the air conditioner
to operate erroneously, or fail to operate. On the other hand, the air condi-
tioner may affect such equipment by creating noise that disturbs medical
treatment or image broadcasting.
•
Do not install the unit on a structure that may cause leakage.
- 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.
1.2. Before installation (relocation)
•
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 and damage to furniture
and other possessions.
•
Be very careful about product transportation.
- Only one person should not carry the product if it weighs more than 20 kg.
- Some products use PP bands for packaging. Do not use any PP bands for a
means of transportation. It is dangerous.
- Do not touch the heat exchanger fins. Doing so may cut your fingers.
•
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 was not torn apart,
they face the risk of suffocation.
2. Indoor unit accessories
The unit is provided with the following accessories:
[Fig. 2.0.1] (P.2)
Accessory name
Pipe cover (For field piping connection)
1
• Small diameter
• Large diameter
3. Selecting an installation site
•
Select a site with sturdy fixed surface sufficiently durable against the weight of
unit.
•
Before installing unit, the routing to carry in unit to the installation site should
be determined.
•
Select a site where the unit is not affected by entering air.
•
Select a site where the flow of supply and return air is not blocked.
•
Select a site where refrigerant piping can easily be led to the outside.
•
Select a site which allows the supply air to be distributed fully in room.
•
Do not install unit at a site with oil splashing or steam in much quantity.
•
Do not install unit at a site where combustible gas may generate, flow in, stag-
nate or leak.
•
Do not install unit at a site where equipment generating high frequency waves
(a high frequency wave welder for example) is provided.
•
Do not install unit at a site where fire detecter is located at the supply air side.
(Fire detector may operate erroneously due to the heated air supplied during
heating operation.)
•
When special chemical product may scatter around such as site chemical plants
and hospitals, full investigation is required before installing unit. (The plastic
components may be damaged depending on the chemical product applied.)
8
1.3. Before electrical work
•
•
•
•
•
1.4. Before starting the test run
•
•
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Model (Qty*)
PEA-200, 250
PEA-400, 500
1
2
1
2
•
3.1. Install the indoor unit on a ceiling strong
The unit must be securely installed on a structure that can sustain its weight.
If the unit is mounted on an unstable structure, it may fall down causing
injuries.
3.2. Securing installation and service space
•
•
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 an earth leakage circuit breaker, as required.
- If an 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 a steel or copper wire may
result in a general unit failure or fire.
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 severe damage to internal parts. Keep the power switch turned on
during the operational season.
Do not touch the switches with wet fingers.
- Touching a switch with wet fingers can cause electric shock.
Do not touch the refrigerant pipes during and immediately after opera-
tion.
- During and immediately after operation, the refrigerant pipes are may be hot
and may be 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.
Do not operate the air conditioner with the panels and guards removed.
- Rotating, hot, or high-voltage parts can cause injuries.
Do not turn off the power immediately after stopping operation.
- Always wait at least five minutes before turning off the power. Otherwise,
water leakage and trouble may occur.
If the indoor unit is run in a place subject to high temperatures and humidity
(the dew-point temperature is 26 °C or more inside the ceiling) for a long time,
dew condensation may occur on the indoor unit. When operated under such
condition, add more insulating material (10-20 mm) on the surface of the in-
door unit to prevent dew condensation.
enough to sustain its weight
Warning:
Select the optimum direction of supply airflow according to the configuration of
the room and the installation position.
As the piping and wiring are connected at the bottom and side surfaces, and
the maintenance is made at the same surfaces, allow a proper space properly.
For the efficient suspension work and safety, provide a space as much as
possible.
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