Car AC Diagnosis of Various Symptoms Dedicated Thread

[Xulfiqar]

Not The Mention The Power You Need To Crank Up That Thing And Start It......It Will Require 3 Phase Connection For Sure And Sane Mind To Operate .....!

5 ton compressors come in two varieties, commercial and residential, difference is the operating voltage, the startup inrush is low when there is no refrigerant load but still - ullu ka patha hilta bohot hai jab start hota hai.

[Xulfiqar]

I Will Try It In Tariq Road Market ....Not Came Across It In Hashu Centre Saddar.....Or My Bad I Didn't Look Good....!

Its Easily Refillable Also??? Propane Butane Is Just A Form Of LPG I Guess....

yes - easily refillable, ask from the tariq rd market, infact its common for A/C repair - everyone should have it for sale.

[SER_GTR]

yes - easily refillable, ask from the tariq rd market, infact its common for A/C repair - everyone should have it for sale.

Normally They Use Small Oxy/Ace Cylinder To Do Repair Works...Commercial Ppl..But I Am Expecting It To Be Available....Will Ask Abt it....Its Much Needed When You Are Playing With A/Cs...Also Comes Handy On Many Other Small Works

[Xulfiqar]

Normally They Use Small Oxy/Ace Cylinder To Do Repair Works...Commercial Ppl..But I Am Expecting It To Be Available....Will Ask Abt it....Its Much Needed When You Are Playing With A/Cs...Also Comes Handy On Many Other Small Works

yes - it comes in handy like welding the door of that annoying neighbor, lighting bbq coals, setting that annoying neighbor's car on fire etc..

btw - try scrappie market for old bottles, you will need a pipe, nozzle and regulator only.

you can also try machine market near lawrence road, they should help you, I personally had an oxy ace bottle set - which I bought from a godown in shershah.

[unstopabl3]

Well I think it's serpentine condenser in mehran. If it came with original fittings then there is sticker out there otherwise you need to fill gas according to pressure charts. I think you can put r12 in your system. It's more efficient than 134 but if you put 134 you need to have good fan with condenser as it does not easily releases heat. Best if you install multi flow condenser and fill 134 gas. You have to buy oil otherwise they put oil as they please and they put oil in compressor only

You should put oil distributed everywhere condenser drier etc

Bhai ye 2008 model hai, AC khuud fit karwaya tha in 2012, mini pajero compressor baaqi saab sanden ka hai I guess.

Ismain I think r134 daali thi shuru sai, to aab r12 daal saakte hain kya? And should I ask them to add oil yaan it's not required if it already has oil in it?

Kaunsa oil buy karun and from where bro? And kahan kahan dalwaoon?

Please advise me so I can get it serviced tomorrow. Thanks

[SER_GTR]

yes - it comes in handy like welding the door of that annoying neighbor, lighting bbq coals, setting that annoying neighbor's car on fire etc..

btw - try scrappie market for old bottles, you will need a pipe, nozzle and regulator only.

you can also try machine market near lawrence road, they should help you, I personally had an oxy ace bottle set - which I bought from a godown in shershah.

Yes I Will Look For It...It Needs Time...Need To HUNT...Else Will Try To Get That Tank And Nozzle Which Radiator Repair Guy Use To Repair Leaks In Radiator....!

[afnan.bashir]

Bhai ye 2008 model hai, AC khuud fit karwaya tha in 2012, mini pajero compressor baaqi saab sanden ka hai I guess.

Ismain I think r134 daali thi shuru sai, to aab r12 daal saakte hain kya? And should I ask them to add oil yaan it's not required if it already has oil in it?

Kaunsa oil buy karun and from where bro? And kahan kahan dalwaoon?

Please advise me so I can get it serviced tomorrow. Thanks

I dont know which compressor is of mini pajero. Well get it flushed completely and then add ND-8 Oil or different if compressor says. Its hard to find R12 gas these days. If you want to add R12 you need mineral oil and its not same as R134 oil. Secondly make sure two things

1. AC wala does not turns cylinder upside down while filling
2. Get you car on full blower doors open and hook high and low side both gauges and then fill gas according to 134 chart pressures

[wasim625]

I dont know which compressor is of mini pajero. Well get it flushed completely and then add ND-8 Oil or different if compressor says. Its hard to find R12 gas these days. If you want to add R12 you need mineral oil and its not same as R134 oil. Secondly make sure two things

1. AC wala does not turns cylinder upside down while filling
2. Get you car on full blower doors open and hook high and low side both gauges and then fill gas according to 134 chart pressures

All fridge and windows ACs take that r12 if i am not wrong. Why it would be hard to find?

[umarkhan1]

All fridge and windows ACs take that r12 if i am not wrong. Why it would be hard to find?

Fridges take r134 and ac takes r22

Sent from my iPhone using PW Forums

[wasim625]

Fridges take r134 and ac takes r22

Sent from my iPhone using PW Forums

Oh i confused it with r22. My bad.

[SER_GTR]

Bhai ye 2008 model hai, AC khuud fit karwaya tha in 2012, mini pajero compressor baaqi saab sanden ka hai I guess.

Ismain I think r134 daali thi shuru sai, to aab r12 daal saakte hain kya? And should I ask them to add oil yaan it's not required if it already has oil in it?

Kaunsa oil buy karun and from where bro? And kahan kahan dalwaoon?

Please advise me so I can get it serviced tomorrow. Thanks

I Don't Think That Compressor Is For R12.....Its Written On Sticker Tag Of Compressor..R12 Discontinued In Early -Mid 90's

Check It...It Have Refrigerant Type Along With Oil Type Mention On TAG....Don't Use Diff Gas In Diff System Till You Are Sure Abt it

[Xulfiqar]

Yes I Will Look For It...It Needs Time...Need To HUNT...Else Will Try To Get That Tank And Nozzle Which Radiator Repair Guy Use To Repair Leaks In Radiator....!

that is easy, lots to be found near paan mandi and city court, Its a basic LPG cylinder with a nozzle and a hand held torch attached to it. You can also buy it from the old school pots and pans market in lalukhet behind the jewelers.

You can also buy a kerosene type burner lamp - the one which you pump up and use the flame to burn off enamel paint off doors.

[obsolete]

that is easy, lots to be found near paan mandi and city court, Its a basic LPG cylinder with a nozzle and a hand held torch attached to it. You can also buy it from the old school pots and pans market in lalukhet behind the jewelers.

You can also buy a kerosene type burner lamp - the one which you pump up and use the flame to burn off enamel paint off doors.

Can u send a pic of this.... i need to burn off enamel of some doors :0

[Shoaibm]

My question is if we forget the effect of thermostat on fan speed, does the fan speed effects running load on compressor? In simple words, does the temperature of inner cooling coil has any effect on compressor load?

[SER_GTR]

My question is if we forget the effect of thermostat on fan speed, does the fan speed effects running load on compressor? In simple words, does the temperature of inner cooling coil has any effect on compressor load?

Compressor Will TRIP Or Work In Most System..........How FAN Speed EFFECT Cooling Is On MAXX Blower...Your Evaporator Will Be Pushing On MAXX Your Inner Atmosphere On Evaporator Making Sure It Do Max HEat EXCHANGE...While Low Fan Speed Will Not DO Maxx Heat Exchange...!

This Is The Reason You Mostly Feel Air Out Of Vent More COLD On Low Speed Than High Speed...!

[Shoaibm]

Compressor Will TRIP Or Work In Most System..........How FAN Speed EFFECT Cooling Is On MAXX Blower...Your Evaporator Will Be Pushing On MAXX Your Inner Atmosphere On Evaporator Making Sure It Do Max HEat EXCHANGE...While Low Fan Speed Will Not DO Maxx Heat Exchange...!

This Is The Reason You Mostly Feel Air Out Of Vent More COLD On Low Speed Than High Speed...!

Thanks for the response, i understand the tripping of compressor but what exactly i want to know is, does the max blower speed (max heat exchange) has any effect on compressor load, is it working harder compared with blower on lower speed?

[SER_GTR]

Nop...BUT.....What It Will Do Is Make Sure That Your EVAP Won't Freeze Up Due To Low Heat Exchange And Nothing Freezed Will Enter

Compressor Inlet But Only GAS....! Excess Gas Will Only Put Extra LOAD On Compressor And System....!

Electrical Variable Speed Compressor Work On That Principal Similar To DC Inverter Compressors In MINI Split

[DUDE007]

@xulfiqar please tell the normal values of resistance of ac compressor clutch magnet and the gap between compressor clutch and pressure plate?

Car is khyber. Compressor is genuine...that would be denso i think.

[Taimur92]

Will there be any improvements in the efficiency of the system if I insulate the cold low A/C line from the evaporator to the compressor? The car in question is an ee100 Indus corolla.

[SER_GTR]

Will there be any improvements in the efficiency of the system if I insulate the cold low A/C line from the evaporator to the compressor? The car in question is an ee100 Indus corolla.

Yes You Can Insulate It...! Diff Will Be Not Too Much ANyways