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Type: Posts; User: tiger11

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  1. Replies
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    2,143

    Thanks All! I will do both comps, ref evap, pan...

    Thanks All! I will do both comps, ref evap, pan heater, capillary tubes and just hope the door heater lasts I guess. Is there a problem brazing the new capillary tubes if I use N2 and clean out...
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    2,143

    Plan B

    Yeah, I agree that replacement was the obvious choice until I priced a new SZ unit - $9000! SZ has competition now in the 24" depth stuff of course but they are in the $8K price range and the...
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    2,143

    Subzero 550 evap question

    I am refurbishing a 20 year old r12 SZ 550 with a burnt out ref compressor and have heard that the ref evaporator tends to go in these units. Should this be replaced even though it doesn't appear to...
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    690

    Intermittent heat pump problem

    Hello all:
    I am a homeowner with a 1.5 ton Carrier yra38 heat pump with a FK4D AH that has worked flawlessly for the 3 years since it was installed. Early this month the 20 amp compressor breaker...
  5. Thread: HP modes?

    by tiger11
    Replies
    11
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    823

    filterchanger - as a homeowner this is my first...

    filterchanger - as a homeowner this is my first system I have ever installed. I would have gladly paid somebody to do it but couldn't find anyone who would even give me a bid on my retrofit job...
  6. Thread: HP modes?

    by tiger11
    Replies
    11
    Views
    823

    pugdog - I looked long and hard to find a system...

    pugdog - I looked long and hard to find a system I wanted; however, I can't divuldge my source for fear of getting him in trouble. If you look hard enough you can find Carrier/Bryant equipment. ...
  7. Thread: HP modes?

    by tiger11
    Replies
    11
    Views
    823

    Sounds like a good idea. However, now I am...

    Sounds like a good idea.

    However, now I am wondering whether the indoor coil would freeze up without the blower on in defrost. The heat to defrost the outdoor coils must come from somewhere. ...
  8. Thread: HP modes?

    by tiger11
    Replies
    11
    Views
    823

    Ah ... Thanks Bill! I don't have any...

    Ah ... Thanks Bill!

    I don't have any supplemental/electric heat in the air handler - it's a Carrier FK4D BTW. Can I assume that the FK4D is smart enough to not run the fan in the defrost mode if...
  9. Thread: HP modes?

    by tiger11
    Replies
    11
    Views
    823

    I am installing a Carrier yra38 which is a single...

    I am installing a Carrier yra38 which is a single stage heat pump. I am noticing that in the outdoor unit there is a white W1 wire that the literature states is to be used for second stage heating....
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    1,190

    Thanks for the help! It just seems a bit...

    Thanks for the help!

    It just seems a bit counter intuitive. I guess that any heat not recovered in the indoor coil (condensor) is actually detrimental once it reaches the outdoor coil.
  11. Replies
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    1,190

    My understanding of heat pump operation in the...

    My understanding of heat pump operation in the heating mode is that the function of the evaporator and condensor are reversed from that of a standard AC system, and therefore the flow is reversed in...
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    1,088

    Oops - I may not be using standard HVAC...

    Oops - I may not be using standard HVAC nomenclature. Let me be more specific. The internal design temperatures I am using are 69 degF during heating operation and 75 degF for cooling operation. ...
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    1,088

    The outside design temps (i.e. Ambient temps)...

    The outside design temps (i.e. Ambient temps) used were 50 degF for heating and 76 degF for cooling. If I use more extreme temps of say 40 degF for heating and 90 degF for cooling I get heat...
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    1,088

    I am located on the coast in Southern California....

    I am located on the coast in Southern California. That heat loss was for ambient conditions of 50 deg heating and 78 degrees cooling - loss is more signficant for more extreme ambient conditions of...
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    I am sizing a HP for 600 sq-ft addition which is...

    I am sizing a HP for 600 sq-ft addition which is basically one large 2-level area with a vaulted ceiling. My load calculatations give me a 5300 btu/hr loss, and a 5600 btu/hr gain under typical (not...
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