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ATD-3688
DELUXE DUAL BRASS A/C MANIFOLD
GAUGE SET
WARNING: Always wear safety goggles when working with
refrigerants. Contact with refrigerant can cause eye injury.
Disconnect hoses with extreme caution! Pressurized
refrigerant may be present in hoses. Always point hoses
away from you and anyone nearby.
Your manifold is designed so that all three lower fittings are connected to each other by internal passages.
Separate passages from the low and high side fittings to their respect
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If repairs are necessary, follow the steps for recovering, evacuating and recharging the system. Recovering Refrigerant Note ：According to federal law, refrigerant should not be exhausted to the atmosphere. ·Be sure the blue low side hose is connected to the A/C system’s low side service port and that the red high side hose is connected to the A/C system’s high side service port. Note ：Typically, the yellow center hose is connected to the inlet of the recovery unit. ·Follow the instruc
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system as necessary. To disconnect the manifold when the system is operating correctly, first close the high side coupler valve. Open the low side coupler valve. Then disconnect the red high side hose from the A/C system. ·Restart the A/C system, and then open both manifold handwheels. Refrigerant from both hoses will be drawn quickly into the A/C system through the blue low side hose. ·When both gauges show the lowest operating pressure recommended by the manufacturer, close the low sid
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