hi Suggest u leak check manifold and hoses 1/pressure test refrigerant with nitrogen 300psi 2/ vacuum check 2a check pump with micron gauge only should get to 0--50 mic 2b pump down each hose with micron gauge ,take note of reading 2c pump down manifold with hoses capped, micron connected then opera...

hi First have all used parts flushed first then blown thru with nitrogen Pressurize system with nitrogen or evacuate and charge with small amount of refrigerant is preferred . System turned off /disconnected By comparison a vehicle that is not getting cycled hot cold and being restored its ok to hav...

hi Just make sure your gauge/hose set is in good order , replace seals , lubricate o rings etc etc vacuum and pressure test . If your doing A/con often enough you get to no your tool characteristics anyways . I `ve always found gauge sets donot age well Don`t forget to service your vacuum pump regul...

hi
its easy to get the sensor in a micron meter dirty . Use 99% isopropyl alcohol fill tip with syringe install cap shake once and empty . Let dry for awhile

hi 1/ on manifold 2/ either the high or low port , vacuum thru the other port and via a dedicated vacuum hose . My next micron gauge will have decay rate also . Allows u to be more accurate for micron rise . CPS do more than one Blue vac do 3 or 4 Hose quality/condition and diameter all will effect ...

After reaching 500 micron at least 1 hr on the vac pump ,, using 4cfm or bigger 2 stage .
8 ---12 HRS if system been left open for any period of time
Bigger diameter the better for vac hoses

hi The conversion that I have done that use a POA ,,, TX Ext Equalised ,,vehicle uses a small corvette evaporator ,,This core is used by GM in alot of vehicles big black a6 compressor ,,, small clutch hub eng fan convert to Block txv internal equal. original/aftermarket replacement evap core ,, elec...

hi
need high heat load and at ideally 1500rpm. Comparison between idle and higher rpm can give way different readings .

hi In some countries TXV is a common setup and OT is uncommon . Have not seen a mechanical thermostat in a passenger vehicle for a long time . A thermistor is 1/ consistently accurate ,,,therefore 2/can run down to a lower off point ,,,equals == 3/ better evap performance In the last 10yrs starting ...

hi
Kenlou
Very universal charging instruction that gives enough info so u donot get into to much trouble when charging system .