Instruction for Use

46
Vacuum-pumping and Leakage Inspection
1.
Tighten the pipe nut entirely.
2.
Take off the one-way valve cap of the cut off valve.
3.
Loosen the valve stem of the liquid valve with a hex wrench.
Valve core should be opened by screw driver, gas should be
discharged. Air discharge lasts for 15seconds, then
refrigerant flow out. Close the valve core and screw down
the flare nut of the check valve.
4.
Open the liquid valve and gas valve entirely, and tighten the
valve cap.
5.
Connect the charge pipe of manifold valve with the charge
port of low-pressure valve.(The high-pressure valve and
low-pressure valve should be closed tightly)
6.
Connect the joint of charge pipe with vacuum pump.
7.
Open the Lo (low-pressure) hand grip of manifold valve
entirely.
8.
Open the vacuum pump to vacuumize.When start
vacuumize, to loosen the connection pipe nut of the low-
pressure valve, to check whether the air has been entered.
9.
5. After vacuumized, close the Lo-pressure hand grip of
manifold alve entirely,and stop the vacuum pump.
(Vacuumized for 15 minutes above, and to confirm whether
the gauge is in -1.0×10
5
pa (-76cmHg).
10.
To open the high-pressure valve and low-pressure entirely.
11.
Dissassemble the charge pipe from the charge port of low-
pressure valve.
12.
Tighten the valve cap.
Draining of Condensate Water of Outdoor Unit
When the air-conditioning unit is in the heating mode, the
condensate water generated at the outdoor unit and the water
generated by defrosting drains through the drainage pipe to the
outlet.
Installation methods: as shown in the figure, insert the drainage joint
of the outdoor unit into the Ø 25 hole on the base plate.
Connect the drainage pipe to the drainage outlet so as to drain
the condensed water and water generated by defrosting to
proper place.
Gauge
Vacuum pump
Hex wrench
Low-pressure valve
Refrigerant
Change Mouth
Nut of pipe joint
Valve Cap
Manifold valve
-76cmHg
Chassis
Outdoor Drainage Tap
Fig 13
Gas Valve
Liquid
Valve
One-way Valve
Screw driver
Valve lever
Charge pipe
Lo hand grip
Charge pipe
Hi hand grip
Pressure gauge
32602007GB.fm Page 46 Thursday, February 1, 2007 5:16 PM