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Type: Posts; User: stvokc

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  1. Replies
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    I was giving you pressures off the r22 scale. ...

    I was giving you pressures off the r22 scale.

    On PSI scale pressure would be 70 low side and 210 high side with pressure temp of 106 and line thermostat temp was 88.
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    gauge reading were 70 low side and 142 high side....

    gauge reading were 70 low side and 142 high side. Outdoor air tempature around 90.
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    Everything in the system is new and it is R22. ...

    Everything in the system is new and it is R22.

    Last 2 responses said to do opposite things (one said ad freon the other said to remove freon).

    Sysytem has sight glass and it is clear and dry.
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    No I have not taken any freon out yet as I wanted...

    No I have not taken any freon out yet as I wanted to be sure I have this correct and the proper subcooling reading I should come to when I take some out. House is empty so will not bother anybody if...
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    New installed complete 5 ton system with TXV. ...

    New installed complete 5 ton system with TXV. The discharge thermostat is shutting condenser off after about 2.5 - 3 hours of run time. Then after about 2 hours the condenser runs again (discharge...
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    House has R30 attic insulation, HVAC units are...

    House has R30 attic insulation, HVAC units are spotless, freon levels correct (I have unit serviced every year to get best performance out of them), attic power vented.

    Contractor ran heat load...
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    Furnance will be new 125k. New condensor & coil...

    Furnance will be new 125k. New condensor & coil will be 5 ton. Everything new except duct work. Existing duct work is in concrete floor and is sized 1600 cfm for a 4 ton unit.

    Current condensor...
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    Old coil is spotless as I have the unit serviced...

    Old coil is spotless as I have the unit serviced every year to keep it running the best it can since not cooling house like house should be cooled.

    Old 4 ton would run all the time and not be...
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    Contractor is going to put a TXV valve installed...

    Contractor is going to put a TXV valve installed to help regulate wide outdoor temperature swings anyways. If coil freezing might be an issue then the TXV valve should help keep the coil from...
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    The old 4 ton did not really keep the house cool....

    The old 4 ton did not really keep the house cool. That is one reason why the contract is saying go with the 5 ton unit.

    The house is 45 years old, 2750 sq ft in hot, humid Oklahoma. Contractor...
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    5 ton unit on 4 ton ductwork? Duct work is sized...

    5 ton unit on 4 ton ductwork? Duct work is sized for a 4 ton but Icontractor wants to put in a 5 ton condensor & evaporate coil unit to cool the house better. House is 2750 sq ft. The contractor...
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    The gray flex duct with the outer cover falling...

    The gray flex duct with the outer cover falling off is on the south exposer. That is where the sun would beat the most and set in the evening. The north side of attic flex duct work is not...
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    Attic flex duct outer gray plastic cover is...

    Attic flex duct outer gray plastic cover is deteriorating, splitting and falling off. The flex duct is 22 years old now. I can not feel any air leakage thru the fiber glass insulation where the...
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    For a home owner isn't a sight glass a good...

    For a home owner isn't a sight glass a good indicator (bubbles) to have. Isn't it an indication if they should call a service person out to check the charge.

    Other question if sight glass is used...
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    Do I have this right? Sight glass is only used...

    Do I have this right?

    Sight glass is only used on TXV systems and on Fixed Orifice systems you can not use a sight glass.

    What location in the line should the sight glass be installed? All the...
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    docholiday I agree with you about the TXV...

    docholiday I agree with you about the TXV operation. That is how I thought it worked too.

    Manufacture spec for either coil(36K w/TXV added or 46K fixed orifice)with the 3ton 12 SEER condenser. ...
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    I thought you wanted to add TXV with any coil...

    I thought you wanted to add TXV with any coil too. What, these guy must not like to mess with trouble of adding one? Don't you just screw it on and clamp a sensor to the manifold of the coil? ...
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    The system is to be in Oklahoma City. Some...

    The system is to be in Oklahoma City. Some humididty but not that much.

    Duct work is to be all replaced too as it is in the ground and all rusted thru and water is getting in it. So over head it...
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    Which option is the better way to go? Looking at...

    Which option is the better way to go? Looking at a split 3 ton Armstrong complete new system, 80% horizontal furnace, 12 SEER AC. The Armstrong specís recommend for a 3 ton, 12 Seer Condenser ,...
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