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Type: Posts; User: handymanjack

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  1. Replies
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    Ok Thanks will try wed. How about the txv sizes?

    Ok Thanks will try wed. How about the txv sizes?
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    Ok! Then use two 3.5 ton expansion valves? And...

    Ok! Then use two 3.5 ton expansion valves? And also use long radius ells, but how about the tees they will be straight?
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    I charged unit til i had a 14 SH Thanks

    I charged unit til i had a 14 SH
    Thanks
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    No! Some people bought a ahu to replace their...

    No! Some people bought a ahu to replace their leaking coil one. Thier old unit is a r-22 single circuit. They were told that no more R-22 AHU 7.5 ton can be found so they bought this dual circuit...
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    single to a dual circuit

    I am changing out a 7.5 ton R-22 single circuit AHU, to a 7.5 ton 410A dual circuit. I know i have to change expansion valve back to R-22. But what else?
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    Is the air handler in the attic? Is the attic...

    Is the air handler in the attic? Is the attic insulated? If not this maybe your problem.
    Your return air needs to come from the high wall or ceiling. Then check pressures.
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    Hey thanks I'll add freon. 410A oh well!

    Hey thanks I'll add freon. 410A oh well!
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    dry bulb 74

    dry bulb 74
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    2 ton air handler had .55 nordyne said change to...

    2 ton air handler had .55 nordyne said change to .53 even though book said .50
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    chart say's 31 superheat. Condenser air in 83,...

    chart say's 31 superheat. Condenser air in 83, Return air in 74
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    handyjack

    Broan unit. low 130- high 295 suction line temp 74. Return air 75, supply vent
    63. Outside temp 82.changed to .53 orifice. 50 feet of line set Afternoon gets 84 in house. 2nd floor unit. 1.5 ton...
  12. handymanjack

    moved return to high wall today. Numbers changed. House was 86 at 9:00am
    12:30 i finished return. House was 84 when i left. Temp 95 outside, house has no wall or attic insulation or attic fan. High...
  13. Well I'm back. Nordyne has figured the question...

    Well I'm back. Nordyne has figured the question out.
    Remember i said no insulation! move low wall return to high wall
  14. sorry, unit is a broan , nordyne product

    sorry, unit is a broan , nordyne product
  15. checking unit again thursday will update Thanks

    checking unit again thursday will update Thanks
  16. It keep it somewhat cool. Owner has a portable...

    It keep it somewhat cool. Owner has a portable unit in his bedroom. This being a sign unit did not keep up. All numbers seem to check out. Sorry about wet bulb didnot check. Also charging chart only...
  17. didnot check superheat. Has expansion valve. temp...

    didnot check superheat. Has expansion valve. temp took at return grille. Home has a wooden chase as return? did not check wet bulb
  18. all numbers good, but cannot pull temp down

    I recently installed a 2 1/2 ton split a/c and 95% furnace in attic. Old system was 2 1/2 ton. It has iced up 5 times. Each time i changed duct or added some freon 410A system. Return is a 18" 12'...
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