97 Volvo 850 Freon charge?

  • Thread starter Thread starter Dale Peterson
  • Start date Start date
D

Dale Peterson

Would like to add some 134 freon to my 134a air conditioning system. Can't
find the connection to input the freon. Did find what appears to be an
access port it is marked 6nm on the lid, but I'm not sure. If you happen
to know please advise me, it's getting hot here in Nevada and this AC
system isn't cold enough. The nearest Volvo dealer is about 3 hours away.
I think I can do this myself with a little advice.

Thank You
Dale P........
 
Would like to add some 134 freon to my 134a air conditioning system. Can't
find the connection to input the freon. Did find what appears to be an
access port it is marked 6nm on the lid, but I'm not sure. If you happen
to know please advise me, it's getting hot here in Nevada and this AC
system isn't cold enough. The nearest Volvo dealer is about 3 hours away.
I think I can do this myself with a little advice.

Thank You
Dale P........
Click to expand...
What you found is the standard low (suction) side dry break service
port.

Bob
 
Dale Peterson said:
Would like to add some 134 freon to my 134a air conditioning system. Can't
find the connection to input the freon. Did find what appears to be an
access port it is marked 6nm on the lid, but I'm not sure. If you happen
to know please advise me, it's getting hot here in Nevada and this AC
system isn't cold enough. The nearest Volvo dealer is about 3 hours away.
I think I can do this myself with a little advice.

Thank You
Dale P........
Click to expand...

Just follow the lines around, the access port will be somewhere in the
suction line somewhere between the compressor and the evaporator, it
shouldn't be too hard to follow. Just make sure you measure the temperature
carefully and charge it to the correct pressure for the measured return air
temp, too much charge is just as bad as too little.
 
Are you getting much smoke from the fires still raging?
Vegas air is orange at the moment and from 1/2 mile away I can't see the
Stratosphere.
 
Would like to add some 134 freon to my 134a air conditioning system. Can't
find the connection to input the freon. Did find what appears to be an
access port it is marked 6nm on the lid, but I'm not sure. If you happen
to know please advise me, it's getting hot here in Nevada and this AC
system isn't cold enough. The nearest Volvo dealer is about 3 hours away.
I think I can do this myself with a little advice.

Thank You
Dale P........
Click to expand...

Hello Dale:

AFAIK, the low side service port is located on the accumulator--which
on your car is likely a silver colored cannister on the passerger side
of the engine compartment near the firewall.

That said, DO NOT try to service it yourself unless you are SURE you
are working on the low pressure service port.

If you accidentally hook on to the high side service port (350 to 400
psi) you risk injury and possibly death. That small can of R134 will
be a hand grenade if you hook up to the high side--and I'm not
kidding.

Also...I have never found Volvo AC to be as cold as some other
vehicles. Try putting a digital instant read thermometer in the vent
and let us know the actual temp.

On my 93 wagon when the outside temp is 98 degrees farenheit and
humidity 60 to 70 % The vent temp is 55 degrees f.

That said, with the sun beating down and sitting in traffic the car
does not feel ice cold inside--but is probably as good as it will get.

Cheerio,

Doc
 
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