-
72
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b) Charge hose (pressure resistant hose for fluorocarbon) and packing
• It is 1/4B in thickness and available in various lengths, etc.
• Use a hose whose pressure resisting performance is higher than 5.2 MPa (52 kg/cm
2
G).
• Generally, a setting fixture is provided only on one end.
(4)
Gauge manifold
• The most important service tool for refrigeration and air conditioner.
• Widely used when charging/recovering R410A while checking gas pressure.
(5)
Tube piercing valve
a) A tool used to make a hole for recovery in the copper pipe when recovering R410A from equipment which has no port for
charging or recovering gas. Various types are available on the market and given various names.
b) As the piercing edge tends to wear, it is necessary to treat this valve as semi-expendables.
c) As vacuum rises, air tends to be inhaled from the hole. So, care must be exercised.
(6)
Vacuum pump
Used to evacuate the recovering equipment and recovering cylinder.
Compound gauge
Pressure gauge
Stop valve
Gauge
manifold
Charge hose
Piercing pliers
Piercing valve
Suction port
Exhaust port
Setting
fixture
Hose
packing
