Panasonic CS-XU10XKH, Operating Instructions Manual

6

 Safety Precautions

WARNING

This appliance is 

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 lled with R32 

(mild 

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 ammable refrigerant). 

If the refrigerant is leaked and exposed to 
an external ignition source, there is a risk 
of 

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 re.

Indoor unit and outdoor unit

The appliance shall be installed, and/or 
operated in a room with 

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 oor area larger 

than Amin (m²) and keep away from ignition 
sources, such as heat/sparks/open 

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 ame or 

hazardous areas such as gas appliances, gas 
cooking, reticulated gas supply systems or 
electric cooking appliances, etc. (Refer to Table 
A of Installation instructions table for Amin (m²))

Be aware that refrigerant may not contain an 
odour, highly recommended to ensure suitable 

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 ammable refrigerant gas detectors are 

present, operating and able to warn of a leak.

Keep any required ventilation openings clear of 
obstruction.

Do not pierce or burn as the appliance is 
pressurized. Do not expose the appliance to 
heat, 

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 ame, sparks, or other sources of ignition. 

Else it may explode and cause injury or death.

Precaution for using R32 refrigerant

The basic installation work procedures are the same as 
conventional refrigerant (R410A, R22) models.

Since the working pressure is higher than that 
of refrigerant R22 models, some of the piping 
and installation and service tools are special. 
Especially, when replacing a refrigerant R22 
model with a new refrigerant R32 model, 
always replace the conventional piping and 

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 are nuts with the R32 and R410A piping and 

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 are nuts on the outdoor unit side. 

For R32 and R410A, the same 

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 are nut on the 

outdoor unit side and pipe can be used.

The mixing of different refrigerants within 
a system is prohibited. Models that use 
refrigerant R32 and R410A have a different 
charging port thread diameter to prevent 
erroneous charging with refrigerant R22 and 
for safety. 
Therefore, check beforehand. [The charging 
port thread diameter for R32 and R410A is 1/2 
inch.]

Must always ensure that foreign matter (oil, 
water, etc.) does not enter the piping. Also, 
when storing the piping, securely seal the 
opening by pinching, taping, etc. (Handling of 
R32 is similar to R410A.)
• Operation, maintenance, repairing and 

refrigerant recovery should be carried 
out by trained and certi

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 ed personnel in 

the use of 

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 ammable refrigerants and as 

recommended by the manufacturer. Any 
personnel conducting an operation, servicing 
or maintenance on a system or associated 
parts of the equipment should be trained and 
certi

fi

 ed.

• Any part of refrigerating circuit (evaporators, 

air coolers, AHU, condensers or liquid 
receivers) or piping should not be located in 
the proximity of heat sources, open 

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 ames, 

operating gas appliance or an operating 
electric heater.

• The user/owner or their authorised 

representative shall regularly check the 
alarms, mechanical ventilation and detectors, 
at least once a year, where as required by 
national regulations, to ensure their correct 
functioning.

• A logbook shall be maintained. The results 

of these checks shall be recorded in the 
logbook.

• In case of ventilations in occupied spaces 

shall be checked to con

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 rm no obstruction.

• Before a new refrigerating system is put 

into service, the person responsible for 
placing the system in operation should 
ensure that trained and certi

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 ed operating 

personnel are instructed on the basis of the 
instruction manual about the construction, 
supervision, operation and maintenance of 
the refrigerating system, as well as the safety 
measures to be observed, and the properties 
and handling of the refrigerant used.

• The general requirement of trained and 

certi

fi

 ed personnel are indicated as below:

a) Knowledge of legislation, regulations 

and standards relating to 

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 ammable 

refrigerants; and,

b) Detailed knowledge of and skills in 

handling 

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 ammable refrigerants, personal 

protective equipment, refrigerant leakage 
prevention, handling of cylinders, charging, 
leak detection, recovery and disposal; and,

c)  Able to understand and to apply in practice 

the requirements in the national legislation, 
regulations and Standards; and,

d) Continuously undergo regular and further 

training to maintain this expertise.

e)  Air-conditioner piping in the occupied 

space shall be installed in such a way 
to protect against accidental damage in 
operation and service.