Hitachi air core 600 Installation & Maintenance Manual page 5

• This unit is part of the package that makes up this air conditioner and cannot be installed in
complete sets or with equipment not authorized by the manufacturer.
• When a pipe less than 3 meters in length is installed, the sound of the outdoor unit will be
transmitted to the indoor unit, which may produce working noise or abnormal noise.
• With the support of His Majesty the King, air conditioners must be in stalled in accordance
with the Thai Electrical Installation standards of the Engineering Society of Thailand. (TIS)
• This product must be equipped with a leakage protection device (ELCB) or electric shock
Protection device (RCD) with a sensitivity of 30 mAh and a time of 0.1 seconds or less,
otherwise it may cause electric shock or fire in the event of a failure of the device or
insulation.
• The device does not have explosion-proof performance, so it should not be installed in
explosive weather conditions.
• This device has no user repairable parts, please consult authorized maintenance personnel
during maintenance.
• When moving or relocating the air conditioner, consult an experienced maintenance person
to remove and reinstall the unit.
• Young children should be controlled to ensure that they do not come to play with this
electrical device.
• This device is not intended for use by persons (including children) with physical, sensory or
mental impairments or lack of experience or knowledge, unless their use is supervised or
directed by those responsible for their safety.
• Do not touch the aluminum heat sink of the heat exchanger located inside the indoor and
outdoor equipment to avoid injury during installation or maintenance.
• Do not place other appliances or household appliances under appliances indoors and
outdoors, water droplets from condensation of appliances may make them wet and may
cause property damage or failure.
The initial installation process is the same as for conventional air conditioner models (R 410A, R22),
however, please note and be careful with the following poin ts.:
• Because the working pressure is higher than the working pressure of the R221.6 air servant
model, some pipes and fixtures and maintenance tools are different. (See section "2.1
Special Tools for Air Conditioning R32 (R410A)"), especially when replacing an R22 air
conditioner model with a new R32 air conditioner model, the door ducts and extension nuts
should be replaced with connecting ducts and nuts for R32 and R410A.
• The R32 and R410A models have different sizes of spiral diameters to prevent the wrong
type of air conditioner from being incorporated into the R22, and for safety reasons, so it's
always a good idea to check first. [Air intakes R32 and R410A have 1/2 inch thread
diameters.]
• Be more careful than the R22 air conditioning model, taking care not to let foreign objects
(such as oil, etc.) into the pipe.
In addition, when storing pipes, the opening should be tightly sealed, such as paste, tape,
etc. (The method for R32 is the same as for R410A).
Precautions for using air conditioners R32
Warning
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