andy2577

Ok first off chaps i want to apologise in advance if this subject has been exhausted to death but i just need some advice


first off im converting my BT escos to Air con as im taking it with me to Australia and air con is kinda needed out there i have managed to collect quite a few parts already ...here is what i have


ST heater control panel
Aircon compressor
Aircon pipes
Aircon Rad
Aircon condensor
Aircon pressure switch
Air con heater matrix in box for under the scuttle panel


what im a little unsure of is this.....................in the car underneath the dash i will obviously need some sort of ducting to chanel the air through from the box under the scuttle panel . Now do i need a box from a sierra/escort with aircon to replace my standard box or do i need just the ducting ?


any advice would be greatly appreciated

Tim Wharton

Hi Andy
Not really sure on a Escort
I,ve converted my non AC sapphire cosworth to AC it involved modifying the bulkhead to house the AC heater box and the wiring is a bit of a pain so good luck with it.
Cheers Tim.

Colly473

Hi mate
As regard the mechanical aspects of the aircon you need compressor,condenser,pipe work dryer,expansion valve,evaporator,pressure sensor and thermostat/cycling switch,control panel/on off button.air con equipped ecu,s had a function to disengage the compressor clutch output under load so may be different(under wot to give max power).the dryer MUST be replaced when the system is open for more than 10 hours.you must ensure all parts are dirt free and free of moisture.dont forget that the pag oil in the compressor is hygroscopic (pag oil) this absorbs moisture once open to the atmosphere which will in turn contaminate the system and cause damage.correct vacuum levels must be reached when commissioning the system and keep in mind that oil travels throughout the system so the correct amount must be calculated for the system as a whole.i must say there are too many people who deal with this stuff who haven't a clue and don't know the real ins and out of air con as a whole.it needs to be done properly and if it's not be prepared for it to fail,especially in Australia where the high side pressure will peak.
DO NOT gas this with a can from halfords or any other factors for that matter,they are nothing but shite.
Best of luck though
Eoin