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Type: Posts; User: Air Doctor, Inc

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  1. Replies
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    Actually some of the better websites to use for...

    Actually some of the better websites to use for learning are the manufacturers web sites.
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    1,614

    First thing I have to know is the configuration...

    First thing I have to know is the configuration of your loop. I need to see a diagram of how the loops are connected. Is the manifold in the basement. Are the loops installed reverse return or...
  3. I agree with Bergy. Check all return ducts and...

    I agree with Bergy. Check all return ducts and your air filter. If all is rightand it still freezes up I now agree with jp call am AC contractor
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    3
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    693

    Yes increasing the flow should prevent it from...

    Yes increasing the flow should prevent it from freezing. Try it and let me know.
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    895

    I agree with Beenthere. Check the cfm and use the...

    I agree with Beenthere. Check the cfm and use the manufacturers charging charts. Make sure you check the air flow first.
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    38,954

    Th eproblem with over sizing a gas furnace is...

    Th eproblem with over sizing a gas furnace is that you waste energy and you might short cycle the unit. What you should do is install a variable speed blower furncae(ECM) with a modulating gas valve....
  7. Theonly way to properly charge is via subcooling...

    Theonly way to properly charge is via subcooling and superheat. Using the manufacturers charts.
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    3,455

    Ground Source Heat Pumps is the proper term to be...

    Ground Source Heat Pumps is the proper term to be used. But geothermal has been used because of the ground being used as the heat sink. Pumping water through the pipes in the ground is one of the...
  9. Replies
    5
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    1,930

    I do geo consulting work and the first thing I...

    I do geo consulting work and the first thing I ask the customer is did you have a load study done? This is where 90% of the problems are. The house to begin with has to be sealed and insulated. Then...
  10. Replies
    11
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    3,162

    I am from NY and I am familar with co2 as a...

    I am from NY and I am familar with co2 as a refrigerant. In fact it is used in a large grocery train. I have also been trained on it's application by large case manufacturer. If you want green...
  11. Replies
    7
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    2,139

    In the past we have used stainless steel heat...

    In the past we have used stainless steel heat exchangers.
  12. Replies
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    2,258

    Mainstreams certificatioj is a start. It's an...

    Mainstreams certificatioj is a start. It's an open book test. There is also another Green Certification that you can get through ESCO and the Green Mechanical Council
  13. Replies
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    10,255

    Iteach geo at an adult ed program in NY. I have a...

    Iteach geo at an adult ed program in NY. I have a hands on trainer. I also teach trouble shooting etc.
  14. Thread: ARGON?

    by Air Doctor, Inc
    Replies
    2
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    691

    I agree with spinstill you will be fine

    I agree with spinstill you will be fine
  15. Replies
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    693

    Your unit must be going out on low presure in the...

    Your unit must be going out on low presure in the heating mode. Increased water flow might help. In the cooling mode the unit might be effected by reduced capacity. If you can put a flow valve on the...
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    748

    You are right. The gauges should be used to check...

    You are right. The gauges should be used to check the sub cooling and super heat. Old school techs think they can tell the system is operating from just reading pressures.
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    8,285

    Credentials

    As expressed earlier. Certified contractors are important. I do consulting work. Believe me when I tell you that there are many misapplied sytems out there that will cost plenty of money to correct....
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    553

    You can use the Payne unit for AC only, since it...

    You can use the Payne unit for AC only, since it is not a Heat Pump. The SEER's should match for efficency. If they don't match it is most likely the SEER will be below 10.
  19. If you are planning to use an open loop Geo I...

    If you are planning to use an open loop Geo I would advise not to. A close loop is more practical. The open loop leaves you deal with strainers and what ever the pump brings into the heat exchanger....
  20. I agree union is the better way to go. Look at...

    I agree union is the better way to go. Look at the long term effect. Benefits and retirement. Plus most Unions have great training facilities. If you are going to be a residential guy the union is...
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