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  1. Replies
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    Not asking for DIY advice - just other...

    Not asking for DIY advice - just other experiences or ideas.
    The professional Trane dealer's technician will make his third visit for this fault condition this week.
    I shall do nothing to void my...
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    Suspect List?

    Is there a published trouble determination sequence for this situation?
    The heat pump heats well after it starts; 26o difference (return to closest supply) when outside is 45o.
    Never had a...
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    Intermittent No-Start Heat Pump Problem

    Trane XL14i & Trane-branded VisionPro dual fuel system (4TWX4036B1000AA TUD080R9V4K4). About seven years old.

    PROBLEM
    VisionPro calls for heat. Inside, the blower fan does not start. The heat...
  4. Visionpro "Likes" Furnace more than Heat Pump?

    Trane-branded Visionpro dual fuel system.
    With the Visionpro set to Heat after a night of 24 or lower, the system starts calling Auxiliary Heat some time during the night. When I wake in the...
  5. Furnace rated 80%, 2 stage variable speed. The...

    Furnace rated 80%, 2 stage variable speed.
    The system does not call the furnace at a particular temperature. It somehow figures out when to call auxiliary heat and how long auxiliary heat runs when...
  6. The heat pump determines (somehow) when it needs...

    The heat pump determines (somehow) when it needs to defrost.
    It will have a delta-T (measured at return & closest supply) around 16 when the outside temperature is 25 and delta-T around 23 when...
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    500

    Try 4TXCC060BC3

    Try 4TXCC060BC3
  8. The system has a "Heat Pump Control Kit" in...

    The system has a "Heat Pump Control Kit" in addition to the Trane-branded Vision Pro. Doesn't that kit guarantee the furnace is off when the heat pump is on?
  9. OK - makes sense. I have a dual fuel system, so...

    OK - makes sense. I have a dual fuel system, so auxiliary is gas. I guess the furnace is not being called during defrost.
  10. Why is Blower on while Heat Pump is Defrosting

    Why does the circulation blower run while the heat pump is in defrost?
    I mean it has been blowing for 8 minutes now and the temperature from the closest supply is 56 degrees.
  11. I thought the AHRI numbers were derived by...

    I thought the AHRI numbers were derived by measuring heat transfer under standard conditions.
    Wouldn't that let you make direct comparisons for capacity and efficiency of the matched systems without...
  12. Compare system performance using AHRI numbers?

    A Trane service representative says you can not take data from an XL16i or XL15i today and compare it to a XL14's performance.

    I was looking at AHRI numbers (Cooling capacity BTUH & SEER - Heating...
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    The replacement coil is 5.0 sq. ft. face area,...

    The replacement coil is 5.0 sq. ft. face area, all Al, weighs 30 lb.; original is 5.5 sq. ft. face area, Cu & Al, weighs 68 lb.
    As for performance data on the coils, I can find only the performance...
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    I have that for the XL14i system I purchased 5...

    I have that for the XL14i system I purchased 5 years ago. Trane rated the combination 14.50 SEER, 9.40 HSPF.
    That coil's performance data was

    590 870 1090 1280 1450 1600 1740 1880
    I need a new...
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    I guess I really mean with respect to some...

    I guess I really mean with respect to some measure of performance within a particular system configuration.
    Set up a heat pump - air handler/furnace combination that does not change. Then substitute...
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    Interpreting Trane Coil Performance Data

    Looking at performance data for coils in a Trane product document, I see the following table & pulled out three lines:

    PRESSURE DROP CHARACTERISTICS FOR COOLING AND HEAT PUMP COILS
    AIRFLOW...
  17. Trane Coil - 4TXC037BC replaces RXC037S3 ??

    Short version: Is the Trane Coil 4TXC037BC the correct new product replacement for the RXC037S3 with regard to performance specs?

    Full story: My Trane system (4TWX4036A1 TUD080R9V4+RXC037S3) needs...
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    Insulating supply ducts in wall ?

    Short of ripping out drywall, is there a way to decrease the heat loss in supplies that run in outside walls?

    My 2 story frame on slab house was built around 1983. Each of the 3 main supply trunks...
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    The hole has a couple of flattened styrofoam...

    The hole has a couple of flattened styrofoam packing peanuts filling it. (Yep. I rigged that one day :o) It is on an inside first floor wall.
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    VisionPro Not Turning Off with Adaptive Recovery

    Dual fuel Trane system. System does not call aux until temp less than around 27 degrees (according to the external temp sensor (used for info only)).

    One degree setback. "Less aggressive"...
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    It appears that Professional Member Weber uses...

    It appears that Professional Member Weber uses UWIN. Link
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    Sorry, I don't know any techs or companies around...

    Sorry, I don't know any techs or companies around Vero Beach, FL
    Hope someone else can give you a lead.
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    I also thought Al wiring was dead. Each wires is...

    I also thought Al wiring was dead.
    Each wires is 7 strands in braided sheath. With an inch unsheathed on one wire, all strands still looks silver.
    I am trying to shave a strand to verify if tinned....
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    Aluminum Electrical Wire Question

    I purchased an outdoor halogen flood light fixture not knowing that it was wired with aluminum wire (but has Cu ground wire). The existing 23-yr-old box has copper wiring.
    The only warning with the...
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    He said that the Bryant breakers could be flipped...

    He said that the Bryant breakers could be flipped on/off too easily by hand, so they were not physically large enough for the panel. :confused: They do not pull out of the panel easily though.
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