Chapter Ⅱ Installation（8. Charging of Refrigerant）
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8.3 Recharging of Refrigerant
1）Connect the intermediate soft tube of refrigerant meter to the refrigerant tank, and connect
one end of blue soft tube of low pressure gauge to Freon charging spout of air intake duct and clip
it on, open the valve of refrigerant tank, and then open the valve beside the low pressure gauge of
refrigerant meter to discharge for 5 seconds, screw down the joint of soft tube of refrigerant meter
on the three-way valve. As shown below:
2）Wait for three minutes, after the main unit is started up, if the needle pointer of low
pressure gauge rises slowly, twist off the valve beside the low pressure gauge and conduct
recharging (when the low pressure gauge displays 0.8~0.85MPa, it means the charging is
finished).
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