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  • A stumper for the HVAC technicians?

    Maintenance & Repairs - 8 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 - 12 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) - 14 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?
  • my new home has a fab laundry room,need some ideas ,i wanna it to be really nice.?

    Decorating & Remodeling - 17 hours ago

    Additional Details

  • Are GE front load washing machines supposed to pause?

    Cleaning & Laundry - 17 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 - 17 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.
  • My water heater wont keep heating after a few minutes it shuts off?

    Maintenance & Repairs - 18 hours ago

    Additional Details

    It is an American 30 gallon about 5 years old and operates on natural gas is this something I can fix myself ? Thanks in advance
  • What is the best time of the year to trim Burning Bush hedges?

    Garden & Landscape - 19 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 ......
  • HELP QUICK :| before mom gets back LOL?

    Cleaning & Laundry - 20 hours ago

    Additional Details

    I brought Heart Shaped Handwarmers from iwoot.com and your meant to boil them for 20 minutes to reuse, i boiled them too long and almost burnt my kitchen down :( and now it stinks >.< how'd i get fumes out QUICK omg, thanks so much everyone who commented :P she found out, but i think she's calmed down a bit, fingers crossed :D omg, thanks so much everyone who commented :P she found out, but i think she's calmed down a bit, fingers crossed :D
  • How do I get goose poop stains out of clothing..? (Please read details)?

    Cleaning & Laundry - 20 hours ago

    Additional Details

    I got goose poop on the sleeve of my good jacket and on my new jeans. I've washed the jeans a few times, and the stain is still there. I washed them within 10 minutes of getting the stain. Are there any stain removers or bleaches I can use..? Thanks! Marisa- I would pick you for best answer, but the vinegar actually worked (: I got the stains out, thanks for the help everybody (:

Cleaning Hints

A collection of our cleaning hints

By Chris Tabone

Cleaning Windows

Lightly Soiled Windows:
1 cup of vinegar
1 gallon warm water

Extremely Dirty Windows:
1 tablespoon household ammonia
3 tablespoons denatured alcohol or vinegar
1 quart warm water

To save money and get good results dry and polish glass with crumpled newspaper—but do not use this method on plastic glazing.

Cleaning Walls

Painted Interiors: Clean with a mild solution of detergent and water, rinse. If uncertain about washability of paint, check on an inconspicuous place.
Glazed tile/Brick: Wash with soap and water solution. Remove discoloration with non-abrasive household cleaner.
Wood Paneling: Clean with commercial wood cleaner; treat with linseed oil or special wax.
Mildew: To remove the fungus that causes it; use 3 tbsps. TSP and 1 ½ cups household bleach in 1 gallon water. (Wear rubber gloves.) Allow several days before painting of papering.

Floors

Hardwood: Mop or vacuum and periodically use a paste wax. If excessively soiled, clean with mineral spirits or commercial floor cleaner, then wax.
Linoleum, Asphalt, Vinyl, Vinyl-Asbestos and Rubber: Sweep, mop, or vacuum. Clean with diluted detergent or recommended floor cleaner. Wax to protect. Use detergent or ceramic-time cleaner on tile.
Unpainted concrete: Clean with 4 to 6 tbsps. Of washing soda in 1 gallon hot water. Use special concrete sealers or paints.
Slate or Clay tile: Seal to prevent staining.
Carpeting: Vacuum regularly, avoid excessive moisture when shampooing.

Bathrooms

  • Fixtures may be china, enameled-cast iron, fiberglass or other man-made products. Regular cleaning prevents soap scum buildup and discoloration. Don't use abrasive cleaners.
  • Enamel and Tile: Use 1 tbsp. Sodium Hexametaphosphate (Calgon) of Tri-Sodium Phosphate (TSP) dissolved in 1 gallon warm water. (Never use hot water. Wear rubber gloves, as these are caustic.)
  • Cultured Marble: Use nonabrasive commercial cleaners.
  • Chrome and Brass: Use glass cleaner or metal polishes.
  • Grout: Use a stiff brush on grout. For heavy stains, use commercial grout cleaner. Tubs and showers should have old caulking removed and new installed whenever cracking appears.

Cleaning Chopping Blocks

  • If you have wooden chopping blocks, you must give them special care. Protect them from spills by coating with a thin film of olive oil and letting it soak in for a few minutes. Then rub dry with a paper towel or lint-free cloth. Repeat several times.
  • Do not use board for 24 hrs. after oiling.
  • To remove stains, sand lightly with a fine grade sandpaper and re-oil.
  • To remove onion, garlic or other odors, rub with a slice of lemon or orange, sprinkle lightly with salt and wipe immediately with paper towel or soft lint-free cloth.

Cabinets and Counter Tops

  • Don't clean with harsh abrasives.
  • Clean wood cabinets just as you do furniture.
  • Use a detergent solution for plastic coated or laminated cabinets.
  • Protect counters. Although most are resistant to heat and to stains, you cannot put hot pots, and pans or irons on them without using a trivet or other protection.
  • Never cut directly on Formica tops, as knives will nick the surface.
  • Use a chopping block to protect counter tops when cutting or chopping.

    Cleaning mildew

    Put bleach solution (one part bleach, three parts hot water) in a spray bottle. Spray the bleach solution on the ceiling and walls of bathroom and let work. After a few minutes wipe off with wet rag.

    Also, bleach erases writing from permanent markers on the walls even if they have been painted over several times.
    Thanks to Lawrence Bennett

Average (1 Rating)5.00 out of 5 stars

2 Comments

  • 1. Posted by Jandhj2 on Sat, Sep 5, 2009

    Is this a draft copy of the article? Please can the missing words be included: "Mildew: To remove the fungus that causes it; use 3 tbsps. ???? TSP ???? and 1 ½ cups household bleach in 1 gallon water. (Wear rubber gloves.) Allow several days before painting of (

    Report Abuse
  • 2. Posted by Jandhj2 on Sat, Sep 5, 2009

    Is this a draft copy of the article? Please can the missing words be included: "Mildew: To remove the fungus that causes it; use 3 tbsps. ???? TSP ???? and 1 ½ cups household bleach in 1 gallon water. (Wear rubber gloves.) Allow several days before painting of (

    Report Abuse

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