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  • A stumper for the HVAC technicians?

    Maintenance & Repairs - 5 hours ago

    Additional Details

    So I'm in an HVAC class. My lab was a unit change out. Everything was going smooth and easy, until I tried to raise the head pressure to 278 psig. The first time I got my head pressure up around 278 psig. While measuring my subcool(which was fluttering around 20 degrees) the high pressure switch cut out. After that It cut out at around 160psig. I bypassed the hi/lo pressure switches, because they kept tripping, and raised head pressure to 200 psig. Above that and the compressor cuts out while the condenser fan keeps blowing. I weighed in the charge of 5.8 lbs of R-22, like the label on the unit called for, if anything it is overcharged. I pulled a triple evac. It is not on me yet to troubleshoot this unit, but I hate failure. This one has two of my instructors suspecting different causes; bad compressor or undercharge. Any ideas? To raise the head pressure, we wrap the coils with plastic and limit airflow. I say it is overcharged because 5.8 lbs is a complete charge with 25' of lineset. This unit has approximately 19' of lineset. The evap coil was not replaced with the condenser. The TXV works fine, it maintains 10 degrees superheat. I think I got everything. The filter drier is just a standard issue. About the size of an orange. The sight glass has a few stray bubbles, which I have received mixed information on. A short time instructor said a proper charge should show no bubbles, another instructor said a proper charge would show some bubbles. The subcool number does show an undercharge...either a coolant loss or I had the scale set to kilos? I think it was a potential relay. All those little black boxes look the same, and I could not see the wiring diagram without removing it from the unit. discharge temp. was around 85-110, the higher number with higher pressure. hermetic, scroll, 208 volt, high temp, used residential unit. We have dozens of A/C's, I swapped out a 13 SEER unit for an antique 12 SEER Rheem. I don't remember the amp draw, but it did increase as pressure rose. This problem developed near the end of the day. So we didn't have time to start troubleshooting. School is closed till Monday, but I have been pondering this since last night. From the questions you have led me with, I tend to suspect the compressor. The compressor was extremely hot to the touch. I think it was a potential relay. I could not read the schematic on it. I admit I am a rookie with no practical field experience. evap pressure stays steady at 70 psig. The pressure rises to around 80 psig when head pressure is forced up to 200 psig.
  • need help with upholstery fabric?? advice?

    Decorating & Remodeling - 9 hours ago

    Additional Details

    I'm buying fabric for my couches and I wanted to know if a blend of wool and polyester would be a good fabric.. I want something that is colour durable, easy to clean and would last a long time.. OH and something that wont lint up when i put it in the wash.. if anyone knows of such fabric please let me know.. thanks in advance
  • Drywalling question(gaps and jagged sheetrock).?

    Do It Yourself (DIY) - 11 hours ago

    Additional Details

    I'm not sure if I make sense to you, this is hard to explain. Basically there is a hole or groove about a inch deep in the sheetrock where he failed to snap the board clean. The grove is located in the middle on the ending. Now when I tape over this I can sorta see that I'm taping over a hole in a wall. I feel like this is not the proper way to do it and it can easy be "punched" through later on. What can I do to fix this gap so I can tape over something solider and the paste?
  • How do I clean my UGG's?

    Cleaning & Laundry - 13 hours ago

    Additional Details

    I always wear them without socks because they are so warm and fluffy inside so Im thinking I should clean them, can they go in the washing machine and the dryer?
  • my new home has a fab laundry room,need some ideas ,i wanna it to be really nice.?

    Decorating & Remodeling - 14 hours ago

    Additional Details

  • Can I let carpet deodorizer sit overnight?

    Cleaning & Laundry - 14 hours ago

    Additional Details

  • Are GE front load washing machines supposed to pause?

    Cleaning & Laundry - 14 hours ago

    Additional Details

    It pauses for about 3 sec about every minute during the washing.
  • I have always fancied myself as gardener but now my wife wants me to plant bulbs. Never planted bulbs before.?

    Garden & Landscape - 15 hours ago

    Additional Details

    Do I have to plant them in the fall, like now, or can they be planted in the spring. Tulips etc...etc.
  • framing metal studs and drywall?

    Decorating & Remodeling - 16 hours ago

    Additional Details

    someone knows who is hiring.i do framing metal stud,drywall,& T bar suspended ceiling and also i have my own laser for T bar ceiling i have more than 10 years experience i am available in east wenatche wash. thanks
  • What is the best time of the year to trim Burning Bush hedges?

    Garden & Landscape - 16 hours ago

    Additional Details

    I always thought you were supposed to trim them in springtime, but right now those little spindly branches with no leaves on them look pretty easy to trim to the height I want them at ......

Attic Tips

Your resource for advice on home improvement and repairs.

By Chris Tabone
Making A Room in the Attic
Attic Ventilation
Insulation
Saving Energy

Making A Room in the Attic

Brighten Your Attic

Brighten your attic by installing skylights on the north or east slopes of your roof. There are bubble or strip skylights available.

Making an attic into a Room

When is it good to make your attic into another room? If you have the following:

  • Ample headroom.
  • Makes a reasonable room.
  • Has a stairway leading to attic space.
  • Floor joists are large enough to support the added load.

Attic Ventilation

Attic Storage

If you are storing holiday decorations in the attic, make sure these items are not obstructing the air flow at soffit or gable vents. Vents should remain open in the winter to allow any condensation that forms to be able to escape outside. Otherwise, moisture will accumulate on your rafters and sheathing and eventually cause them to rot.

Water Moisture In The Home

Make sure your kitchen and baths are vented to the outside of the house. These rooms generate the most moisture in your house. A timer switch on the ventilating fans will help you remember to run the fans long enough to clear out all the moisture, and shut off automatically. Also, if the house walls are not insulated, water vapor will condense on the drywall. Think about installing some needed insulation in these rooms.

Condensation

Dampness is almost unavoidable in new homes because of the gallons of water that went into the construction of foundation walls, basement floors, paint and even bathtub grout.

Although proper ventilation helps speed drying, allow about a year for through curing. Don't hurry the process with high temperatures, unnatural heat can cause warping and other damage. Doing the following can help:

  • Open basement windows during warm weather, close when weather is damp.
  • Have outside venting for kitchen, bath and utility areas.
  • Adjust the humidifier, if there is one in your heating system.
  • Consider installing a dehumidifier in extremely damp areas.
  • Check sumps periodically.


Insulation

Heat Loss

Remember that heat radiating from bricks melt the snow faster from around your chimney. If you have other melting places on your roof, check the insulation. It may have fallen between your rafters or you might need additional insulation, since you definitely have some heat loss through your roof.

Jobs Most Often Done By Homeowners

  • Insulation
  • Hanging interior doors
  • Interior painting
  • Hanging cabinets
  • Installing windows
  • Hanging exterior doors
  • Putting up siding
  • Trim and soffit work
  • Installing electrical fixtures
  • Interior trim work

Ease of Jobs-Rated By Homeowners

  • Insulation
  • Painting
  • Installing electrical fixtures
  • Installing windows

Itch Preventer

Try sprinkling baby powder on your exposed face, neck, hands and arm skin before working with fiberglass insulation. The powder keeps the insulation from sticking to your skin and causing any irritation!

Saving Energy

Attic Fan Close Up

Now that you aren't using your whole-house attic fan, its time to unplug the fan or shut off the power to the unit until warmer weather! Cover the fan with polyethylene or something like a large garbage bag. You want to seal out that cool air coming into the house. If your attic is unheated, you could also put some fiberglass insulation over the plastic cover.

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