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2827
Amount of Necessary Refrigerant
Amount of Necessary Refrigerant
(
R410A: kg
)
PUHZ-RP71
PUHZ-RP100/125/140
PUHZ-RP170/200 7.7 0.9 1.8 2.7 3.6
61 - 70m
SUZ-KA25
SUZ-KA35
SUZ-KA50
SUZ-KA60
SUZ-KA71
0.8
1.05
1.6
1.8
1.8
0.15
0.15
0.06
0.06
0.165
0.3
0.3
0.16
0.16
0.44
0.45
0.45
0.26
0.26
0.715
—
—
0.36
0.36
0.99
—
—
0.46
0.46
1.265
Xg = 30g/m ×
(
length-5
)m
Xg = 20g/m ×
(
length-7
)m
Xg = 55g/m ×
(
length-7
)m
30m25m20m15m10m7m
Factory charged Additional charged
Calculation
Piping length
Piping length
Piping length
Factory charged Additional charged
Factory charged Additional charged
3.5
5.5
10 - 30m
0.6
0.6
31 - 40m
1.2
1.2
41 - 50m
—
1.8
51 - 60m
—
2.4
61 - 75m
51 - 60m41 - 50m31 - 40m10 - 30m
In the Case of PUHZ-RP250YKM
Calculation of additional refrigerant charge
• Calculate the amount of additional charge based on the length of the piping extension and the size of the refrigerant line.
• Use the table below as a guide to calculating the amount of additional charging and charge the system accordingly.
• If the calculation results in a fraction of less than 0.1kg, round up to the next 0.1kg.
For example, if the result of the calculation was 11.38 kg, round the result up to 11.4 kg.
<
Additional Charge
>
Factory Charge: 9 kg
Additional
refrigerant charge
Liquid pipe size
Total length of
ø9.52×0.06
(
kg
)
= + 3.0 kg
(
m
)
×0.06
(
kg/m
)
NOTICE
* Air conditioners in this brochure contain and operate with refrigerant R410A and synthetic oils.
Before attempting any installation work you must read the installation instructions.
New tools, materials and procedures are required to install these products.
Under Australian Law, only persons suitably licensed are permitted to install and service air conditioning units. The buyer must ensure
that the person and/or company who is install, service or repair the air conditioner has the necessary licences, qualications and
experience to perform the work. Suitable access for warranty and service is required. Refer to conditions of warranty on the Mitsubishi
Electric website. For future improvement, specications, designs of product and availability are subject to change without notice.
Refer to Country, Commonwealth, State or Territory legislation, regulations and industry codes of practice, before installation of these
products.
Recovery and disposal of waste material must comply with Country, Commonwealth, State or Territory guidelines.
* Do not install indoor units in areas (e.g., mobile phone base stations) where the emission of VOCs such as phthalate compounds and
formaldehyde is known to be high as this may result in a chemical reaction.
* When installing or relocating or servicing the air conditioners, use only the specied refrigerant
(
R410A
)
to charge the refrigerant
lines.
Do not mix it with any other refrigerant and do not allow air to remain in the lines.
If air is mixed with the refrigerant, then it can be the cause of abnormal high pressure in the refrigerant lines, and may result in an
explosion and other hazards.
The use of any refrigerant other than that specied for the system will cause mechanical failure or system malfunction or unit
breakdown. In the worst case, this may lead to a serious impediment to securing product safety.
* Specications, designs and other content appearing in this brochure are current as at January 2015 and are subject to change without
notice. Diagrams are representations for illustrative purposes only.
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