JustAnswer > HVAC
Ask A Question|Register|Login|Help
JustAnswer

HVAC
Ask a HVAC Question, Get an Answer ASAP!

Have your own HVAC question?

3 HVAC Technicians are Online Now
characters left:
Not a HVAC Question?

Related Hvac Topics:

  • Gas
    • ,
  • Low
    • ,
  • Max
    • ,
  • Psi
    • ,
  • 410a
    • ,
  • Coil
    • ,
  • Cool
    • ,
  • Foot
    • ,
  • Heat
    • ,
  • Info
Bookmark and Share

Question

I,m workin on a Trane heat pump system.ouydor mod.#4twxgo24b100aa w/ahu mod.#
4tee3f31a1000ab. the o.d. air temp was 83 deg. f. and would only cool down to 79 deg. f.
indoors. unit had 356 psig. high side and 167psig low side. does this system sound like it is overcharged?,andhow many square foot home would it cool with fairly insulated construction?
hope you can give me a good answer with the info provided. thanks Phil

Submitted: 159 days and 2 hours ago.
Category: HVAC
Value: $9
Status: CLOSED
+
Read More

Accepted Answer

Hello,

I could only answer you regarding your pressure values but I do not know how many square foot it can cool.

The pressures that you have given are very high than normal. Usually, suction pressure would just be 60 - 70 psi on 85 degrees F ambient.
Discharge pressure would be 250 - 290 psi max if ambient are in the 90's
Unless the condenser coil is clogged with dirt.

Picture
Expert: Drcool
Pos. Feedback: 96.0 %
Accepts: 
Answered: 6/15/2009

HVAC Technician

i have been an A/C tech for the past 12 Years. working on window types, split type, and package

159 days and 2 hours ago.

Reply

this system uses r 410a is this still too high

Posted by Drcool 159 days and 2 hours ago.

Info Request

Oh. That would be a big difference.

At 176 psi, temperature of refrigerant is 62 degrees F. ( still a little bit high).

You can try to recover some of the gas and stabilize the suction pressure to 105 psi which is 34 degrees F. Which is about the temperature of the evaporator.



Edited by Drcool on 6/15/2009 at 1:38 PM

+
Read More

Related HVAC Questions

  • I installed a vision pro 8000 and my unit will not kick on.
  • what would a normal resistance reading be for a liquid line
  • I have a 2nd flr condo with a Trane furnace. Bldg is 5 yrs
  • I have a Synder General Corp Gas Furnace Model GUC045A014-N
  • I'm looking at a home to purchase- how can I tell whether th...
  • I have a thermostat in my greenhouse that has died. It is
  • I have a GE 208/230 volts HVAC blower motor, model #GB3BM-02...
  • Are the art cool AS-W126ERHO and AS-H126PBL2 available in



Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.
Question List | Become an Expert | Terms of Service | Security & Privacy | About Us
© 2003-2009 JustAnswer Corp.