Aluminum Micro channel is a coil type used in numerous evaporator and condenser coils. it can fluently be linked by its flat tubes and fins between thetubes.by developing now it used in the automotive assiduity and is used for radiators and automotive A/ C condenser coils.

These coils are made of all aluminum, amalgamation grade voluntary and 3103etc.their superior heat transfer due to increased face contact between the refrigerant and the essence besides its lighter weight and lower refrigerant charge. further specification please relategranahvac.com

These coils have come under a lot of review by technicians due to an undisputed high failure/ leak rate of the condenser coils in somesystems.No matter how you feel it’s likely that microchannel coils are then to stay due to the increased heat transfer effectiveness and dropped weight. Then are a many effects you need to know when installing and servicing microchannel coils

Do n’t Pump it Down

MicroChannel condensing units aren't transferred with the full system charge and must have the charge added to manufacturersspecs.more charge precisely added for line length.

You can not, and mustn't essay to pump down a system with a microchannel condenser or you risk causing a disastrous failure of the coil.

Rather, you must recover the charge when making a refrigerant circuit form and also precisely weigh the proper charge in after the form is made.

Use Proper Brazing/ Evac/ and Refrigerant Practices

The flat tubes have bitsy refrigerant channels in them and they're susceptible to blockage by any solid pollutants in the system. Make sure to flow nitrogen while brazing, install a new liquid line drier after making a refrigerant circuit form and pull a proper vacuum (as always). keep tubing ends and hoses down from dirt and debris

Wash Precisely

using any cleanser on microchannel coils to avoid damage. Either use a theater sock, low pressure “ addict” pattern pressure washer lower than 100psi or a cleanser that's approved for use with microchannel and work precisely. The refrigerant channels go all the way to the edge of the coil and can be fluently damaged if impacted.

The Charge is CRITICAL

When charging microchannel you'll want to follow manufacturers specs and weigh the charge in whenever possible. If you see low suction does n’t just start jilting in charge until you're certain it's a charge issue and not an tailwind issue or a restriction. Subcooling on microchannel systems tends to be more erratic due to the lower volume of the condenser coil.

Install Courteously

we suggest taking lesser care to cover microchannel. It may make sense to keep microchannel down from areas of the field that will have outfit going near the unit and conceivably shooting debris into the face.