Timberk T-AC07-S27-X, Instruction Manual, Page: 16 / 56

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16
Expelling the air
Outdoor unit refrigerant discharging method
After the pipe side connection is complete, proceed as follows:
Fig. 15
Vacuum Pumping Method (R410A refrigerant evacuation must use the vacuum pumping
method)
Before working on the air conditioner, remove the cover of the stop valve (gas and liquid valves)
and be sure to retighten it afterward (to prevent the potential air leakage).
1. To prevent air leakage and spilling tighten all connecting nut of all flare tubes.
2. Connect the stop valve, charge hose, manifold valve, and vacuum pump.
3. Fully open the handle Lo of the manifold valve and apply vacuum for at least 15 minutes and
check that the compound vacuum gauge reads -0.1MPa(-76cmHg).
4. After applying vacuum, fully open the stop valve with a hex wrench.
5. Check that both indoor and outdoor connections are free of air leakage.
Fig. 16