#Manifold gauge how to
#Manifold gauge manual
#Manifold gauge full

If oil is found to be leaking from a location, it can be further wiped with a clean white paper. Normally, it is easy for us to find refrigerant oil from the place where there is a leakage. Don't forget to run the pump for another 30 minutes to ensure the system is completely clean, no moisture or air left. If the pressure does not change, then we could believe that the system is occupied with vacuum.

#Manifold gauge manual

How can I tell the system is under vacuum? （Updated on 20th, Aug, 2021）Ĭlose the high/low pressure manual valve and observe the pointer of the low-pressure gauge when the vacuum degree reaches -30inHg.

Expansion valveof the air conditioning system is broken.

The connections of the set is not tight enough or the seal ring is broken.After draining the vacuum, high/low pressure valves should be closed firstly and then the vacuum pump, otherwise, pressure backflow may cause leakages.There may some leakages in the car pipe.

#Manifold gauge full

The system is not full of vacuum before you charge refrigerant into air conditioning system.

If the pressure does not change, please open the high/low pressure manual valve and the vacuum time shall not be less than 30minutes.

If the pressure rises, it indicates the system leaks, and then you need to charge vacuum into the system after repairing the system

After 15 minutes of continuous pumping, when the vacuum degree reaches -30inHg(7.6mpa), we need to close the high/low pressure manual valve and observe the pointer of the low-pressure gauge.

#Manifold gauge how to

How to add refrigerant into air conditioning system？īelow is a video link for you to study about how to pull refrigerant into air conditioning system.īased on this video, please pay much attention to below points when you start to pick up suction: Open the low pressure valve &close high pressure valveĪdd refrigerant or refrigerant oil into refrigerant systemĬlose the low pressure valve & open high pressure valveĬheck the refrigeration system or add refrigerant & refrigerant oil with high speed The yellow one in the middle is connected with refrigerant cylinder while charging or the vacuum pump when the system is being evacuated of air and moisture. The blue one is for low pressure service port, while, the red one is for high pressure service port. Normally, the manifold gauge set has three hoses with different color ( blue, red and yellow). What does a set of Manifold Gauge Set should include？ In order to help people get better understanding of manifold gauge set, we create this FAQ to provide some explanation and hope this will be useful for you guys. In this way, That's where the manifold gauge set comes into play. Most of people choose to exchange refrigerant at home to save money rather than go to the car repair shop. That is because, it has become a fashion to recharge air conditioner by ourselves over these years. How many parts does the manifold gauge set include? What should I do to connect all the parts together? What should I do to pull refrigerant into my air conditioner by myself?.Have you ever encountered such problems? The answer for most people with cars must be yes.