Search:

Type: Posts; User: deme

Page 1 of 4 1 2 3 4

Search: Search took 0.00 seconds.

  1. Replies
    17
    Views
    1,864

    On my Carrier heat pump, defrost is a function of...

    On my Carrier heat pump, defrost is a function of time and outside coil defrost thermostat.
    The thermostat is set to close its contacts at 30*F (to initiate a defrost cycle at the appropriate...
  2. Replies
    15
    Views
    3,559

    Right On.

    Right On.
  3. Replies
    15
    Views
    3,559

    I had two 'buzzing' problems. The first one was...

    I had two 'buzzing' problems.
    The first one was a loud one occasionally coming out of the heat pump condenser. Opened the beast up and traced the noise to the reversing valve coil. Put my finger on...
  4. Replies
    16
    Views
    2,402

    Larry, I got my curves from the Carrier Product...

    Larry,
    I got my curves from the Carrier Product data booklet for the Carrier 38YXA heat pumps. Mine is a 2 ton unit and the following curves give information for 2, 2.5, 3, 3.5, 4 and 5 ton heat...
  5. Replies
    16
    Views
    2,402

    There are several ways to determine the setting...

    There are several ways to determine the setting of the balance point. Here is how I did mine:

    I used the heatpump output curves to determine output for 30*F, 35*F and 40*F outdoor temperatures...
  6. Replies
    7
    Views
    1,330

    I run my Lennox G60DFV furnace off a Generac...

    I run my Lennox G60DFV furnace off a Generac XL4000 4,000 watt generator during infrequent power outages.

    I have an approved single circuit manual transfer switch connected to the house electric...
  7. Replies
    16
    Views
    2,402

    I'm not a pro but the calculation is...

    I'm not a pro but the calculation is straightforward.
    All types of energy can be converted from one form to another.
    In this calculation I'll express electric energy in terms of THERMS.

    from:...
  8. The following paper deals with dehumidification...

    The following paper deals with dehumidification when neither heating nor cooling are required.

    http://www.buildingscience.com/resources/mechanical/hvac/conditioning_air.pdf
  9. Replies
    35
    Views
    6,523

    The installation instruction book for my Carrier...

    The installation instruction book for my Carrier 38YXA heat pump describes the thermostat which (along with the timer) initiates a defrost cycle.

    This thermostat closes its contacts to enable a...
  10. Replies
    3
    Views
    581

    I am aware of the high price of electricity in...

    I am aware of the high price of electricity in Ontario. You poor people are paying for the sins of several past governments and of Ontario Hydro.

    The cost per kwh I mentioned was the total cost...
  11. Replies
    3
    Views
    581

    I did a calculation on costs for my house some...

    I did a calculation on costs for my house some time ago. The arithmetic is pretty detailed but not complicated.
    You may have to do some unit conversions because I used Candian information.
    Hope it...
  12. What is the cost difference between air...

    What is the cost difference between air conditioning only and a heat pump (which also provides air conditioning)?. While all the other advice is relevant, the above cost difference should govern in...
  13. Replies
    8
    Views
    2,603

    Sparking, which generates random radio frequency...

    Sparking, which generates random radio frequency waves, at brushes of a commutator motor is not so rare. You don't need a psychiatrist and it's not aliens.
    Clean commutator and make sure brushes...
  14. Replies
    35
    Views
    6,523

    I don't know if this applies in your case but...

    I don't know if this applies in your case but regardless of the lockout setting, the furnace will operate when the system calls for a defrost.
  15. Replies
    35
    Views
    6,523

    The regular owner's manual doesn't explain the...

    The regular owner's manual doesn't explain the lockout setting. You need the following pamphlet:
    Programmable Dual Fuel Thermostats. Installation, Start-Up, and Operating Instructions.
    You'll find...
  16. Replies
    9
    Views
    867

    1760 sq. ft. rancher in Vancouver B.C. area, just...

    1760 sq. ft. rancher in Vancouver B.C. area, just North of Blaine Wa.
    Replaced old 19 year old gas furnace in June/03 with 80% efficiency gas furnace.

    Installed 2 ton heat pump during summer...
  17. Replies
    22
    Views
    2,060

    In my house (dual fuel system), the outdoor...

    In my house (dual fuel system), the outdoor temperature sensor cuts out heat pump operation at 35*F and lower. It is necessary for the proper functioning of the equipment.
  18. Replies
    10
    Views
    3,355

    when I was comparing identical houses, I should...

    when I was comparing identical houses, I should have said that the windows in the second house faced West.
  19. Replies
    18
    Views
    1,564

    Crawl space walls are poured concrete and are...

    Crawl space walls are poured concrete and are insulated with R12 bat insulation.No vapour barrier on walls.

    Initially I painted the crawlspace floor with latex concrete paint. Painting did not...
  20. Replies
    18
    Views
    1,564

    I had a similar problem. My crawl space floor is...

    I had a similar problem.
    My crawl space floor is covered with very rough poor quality concrete. I covered it with a heavy gauge vapour barrier plastic sheets. Musty smell was reduced very...
  21. Replies
    10
    Views
    3,355

    There is no such thing as a rule of thumb. Take...

    There is no such thing as a rule of thumb.
    Take two identical houses. One has large windows facing North and the other one has the same windows facing South and gets reflections from a lake. If you...
  22. Replies
    11
    Views
    966

    I live in white Rock, just outside Vancouver. The...

    I live in white Rock, just outside Vancouver. The design temp. for heating for Vancouver is 17*F. My heat pump is a Carrier 38YXA 2 ton unit. with an HSPF of approximately 8.6 and a SEER of up to...
  23. Replies
    11
    Views
    966

    Most of the time, the outside temperature is...

    Most of the time, the outside temperature is above freezing.
    My heat pump is backed up by a natural gas furnace and the balance point is set at 35*F. Below balance point, furnace does all the...
  24. Replies
    28
    Views
    2,117

    Originally posted by virginiajersey [B]...

    [QUOTE]Originally posted by virginiajersey
    [B]

    Yes, I added a supply duct and register to the colder room. The room in which we do most of our living, was about 2*F colder than other rooms...
  25. Replies
    28
    Views
    2,117

    Keep in mind that I'm a homeowner who likes to...

    Keep in mind that I'm a homeowner who likes to keep himself informed and not an HVAC professional . My house is heated and cooled by a 2 ton Carrier Performance Series heat pump using a Carrier dual...
Results 1 to 25 of 79
Page 1 of 4 1 2 3 4
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event