Panasonic S-22KA1E5S, Руководство по обслуживанию

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11.2.6.3 Precautions during refrigerant installation
•
Use clean pipes with no dust inside.
The pipe may corrode with the presence of fl uorine dust which will
adversely affect the refrigerant piping system
due to deterioration of the refrigerant oil, etc.
•
This unit is speci fi cally for R410A. Ensure to adhere to the following
items and install accordingly:
o
Use pipe cutters and fl aring tools which are specially designed for
use with R410A.
o
When connecting with fl aring tools, coat the fl are section with
ether-based oil.
o
Ensure to use the fl are nuts supplied with the unit when
connecting this unit.
o
When storing pipes on the site pinch and tape the pipes to prevent
foreign materials, dust and water from getting into it.
•
The connecting pipes can be routed through the front or the bottom of the outdoor unit casing:
•
Make holes in the pipe panel for the pipes to penetrate it and lay the pipes accordingly.
o
It is recommended that after removing partition, remove fl ashing and apply anti-rust paint to the edge
portions and surrounding edge areas. It is recommended to apply additional substance to the cut area for
anti-rust protection.
•
Close the gap at the pipe connected area with putty or heat insulator
(locally supplied).
o
If an insect or small animal enters the outdoor unit, there is the risk
of shorting in the product electronic casing.
•
Apply tape (procured locally) to the gap around the removed pipe to
ensure preservation.
Additional refrigerant charge
This system required additional refrigerant charge for any pipe length.
Additional amount of refrigerant per 1 m pipe length
Liquid pipe diameter Addition amount of refrigerant [g/m]
Ø6.35 26
Ø9.52 56
Ø12.7 128
* Please do not add refrigerant in excess of the maximum additional
amount of refrigerant. This is a cause of compression failure.
Maximum additional
amount of refrigerant
24 kg
Caution for handling liquid-side 3-way valve
•
Do not open the 3-way valve until the piping installation is completed.
(Shipping closed)
•
During installation the side panel may warp if only the fl are nut is
loosened and tightened with a torque wrench. As a result, always be
sure to secure to the hexagonal part of the 3-way valve with a spanner,
or other tool.
• If the nuts are over tightened, they may cause the fl ares to break or
leak.
•
Do not add additional force to the valve’s cover.
• Using spanners on the cover or valve itself (other than the hexagonal
parts) may cause gas leakage.