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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?
  • How do I clean my UGG's?

    Cleaning & Laundry - 15 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 - 17 hours ago

    Additional Details

  • Can I let carpet deodorizer sit overnight?

    Cleaning & Laundry - 17 hours ago

    Additional Details

  • how do you measure cleanliness?

    Cleaning & Laundry - 17 hours ago

    Additional Details

    I have a science fair project and for the research paper my teacher wants me to say how i would measure cleanliness... like from somebody else' project. Please leave a source
  • 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.
  • How do i get white out of blue jeans?

    Cleaning & Laundry - 18 hours ago

    Additional Details

    My friend splattered a bottle of white out all over my pants. I don't have time or the money to buy WD-40 Is there any good around the house items i can use?
  • 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

10 Green Renovation Tips

Whatever your next home-improvement project, be earth-friendly about it

Provided by Wish

1. Use eco-friendly, low-VOC paint, and paint everything (walls, floor and ceiling) the same colour. Tip: Rent a spray machine from your local hardware store and cut painting time in half.

2. Place a rain chain and barrel under eavestroughs to catch water for watering plants.

3. Update dated fluorescent fixtures with more attractive lighting and energy-efficient bulbs.

4. Make room for greenery. Bring in large potted plants or built-in planters to keep the air fresh and suck up CO2. Choose native plants that don’t require much water.

5. Choose natural accents. Roll out a seagrass, coir or sisal area rug for a finished look.

6. Use reclaimed wood for decking and fencing. Cedar ages gracefully and naturally repels bugs.

7. Repurpose found objects or shop yard sales for interesting pieces.

8. Think local. Source materials and furniture from nearby places to reduce the negative impact of long-distance shipping.

9. Salvage whatever you can. Cover chairs with fresh new fabric or donate old kitchen cupboards to organizations like Habitat for Humanity (habitat.ca).

10. Create accessible recycling and make the most of storage. Use dowels to hang recycling bags along one wall to store recycling overflow. Attach a series of metal buckets to the wall for storage and to create a ledge for an iPod station, books and magazines.

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