AC efficiency
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Tuned
Joined: Mar 2004
Posts: 400
Likes: 2
From: South Texas
AC efficiency
I have a 91 ranger that I converted to 134 about 10 years ago. All components have been replaced (compressor, condenser, office tube, accumulator, evaporator and hose manifold). The system was evacuated for several hours down to -26 and it held that vacuum over night before it was recharged to the appropriate level. The manifold gauges show proper readings for current ambient temperature and altitude. My issue is that it just doesn't get very cold. It gets comfortable for the most part but I'd like to get it colder. Im thinking of insulating my evaporator housing and accumulator, adding an electric fan to the condenser, and possibly trying to upgrade the condenser from the serpentine design to a more efficient parallel flow if I can find one.
Does anyone have any suggestions on other upgrades I can do to make it more efficient or know where to get a parallel flow condenser?
thanks
Does anyone have any suggestions on other upgrades I can do to make it more efficient or know where to get a parallel flow condenser?
thanks
Cross-Country
Joined: Jan 2017
Posts: 66
Likes: 0
From: Lee county FL
Idea. if the correct charge was weighed in, and proper evacuation took place. Which you described, happened... I suspect invasive heat gain from the heater core. I had this issue and decided to bypass the heater core with a bypass valve that opens when I want it to. Does the truck have functional heat?
Cross-Country
Joined: Jan 2017
Posts: 66
Likes: 0
From: Lee county FL
Also, consider forgoing the orifice and installing a thermostatic expansion valve? I have done this, and it is a labor, but a worthwhile one for efficiency at idle, when airflow across condenser is at its lowest
Thread Starter
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Tuned
Joined: Mar 2004
Posts: 400
Likes: 2
From: South Texas
Idea. if the correct charge was weighed in, and proper evacuation took place. Which you described, happened... I suspect invasive heat gain from the heater core. I had this issue and decided to bypass the heater core with a bypass valve that opens when I want it to. Does the truck have functional heat?
Thread Starter
|
Tuned
Joined: Mar 2004
Posts: 400
Likes: 2
From: South Texas
I appreciate the suggestion. Do you know if the efficiency difference between the standard serpentine flow condenser vs parallel flow is significant enough to merit switching?
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