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    jasmine96's Avatar
    jasmine96 Posts: 1, Reputation: 1
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    #1

    Aug 1, 2010, 06:11 AM
    Normal operating pressures r410a
    Looking for normal operating pressure/temps for r-410. 14.5 seer, 2.5t new unit. 83deg outside, system was running @ 255# high side, 135#low side, liquid line temp was 84deg. Suction line temp was 64deg. I know these pressures are low, can unit be ran until weekend is over? I think undercharged? At the time house thermostat was at 78deg. Inside and set for 72 deg. Temp coming out of register was 62 deg.
    peewee j's Avatar
    peewee j Posts: 1, Reputation: 1
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    #2

    Jul 16, 2012, 06:51 PM
    Normal operating pressures for 3.5 ton straight cool 410a system
    cool_air's Avatar
    cool_air Posts: 1, Reputation: 1
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    #3

    Aug 30, 2012, 04:35 AM
    suppe r heat= 14*f and subcoolin g =1*f seems to me u need more subcooling is the air flow close to 400 cfms per ton?
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