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  1. Replies
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    Here are the steps I will take 1) Ask the amana...

    Here are the steps I will take
    1) Ask the amana rep about the proper sizing for my duct
    2) Ask him to confirm we can match the 3T heatpump with 4T coil, or if only a new valve is needed
    3) take...
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    I am thinking that they will send the defective...

    I am thinking that they will send the defective unit back to amana to get a new working 3T. The change they did to the duct was obviously not enough for a 4T so it might be good for a 3T. I am...
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    The Salesperperson said they only needed to...

    The Salesperperson said they only needed to change the external unit, they will not need to replace the inside coil.

    There will be no cost to do the downgrade.

    As for the refund, he said that...
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    I had a talk with the salesman from my...

    I had a talk with the salesman from my contractor, and he said that if we downgrade to a 3 tons, then the Amana rep, should not hold it againts us, and that the rep is already aware of the situation...
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    Aouch! I already have an appointment with them...

    Aouch! I already have an appointment with them next Monday!
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    They added a return opening so most of the...

    They added a return opening so most of the airflow would come from the actual room instead of the other returns around the house, and they increased the size of the main exit leading to the old...
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    good to know, I will mention that to them when...

    good to know, I will mention that to them when they come, but if they downgrade the heatpump to 3T, they can probably popin the old 30A breaker back in place.
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    it was 10 returns around the house connected to...

    it was 10 returns around the house connected to one central return duck in the ceilling above the coil. Right after installation the compressor would run for a few minute, then cycle on overload. The...
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    it was a replacement of a 2.5T system, there are...

    it was a replacement of a 2.5T system, there are at least 10 return but after the installation, when they were investigating why the heatpump would go trigger the overcharge protection every 5 min, ...
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    The contractor company called me to say that they...

    The contractor company called me to say that they think the problem reside with the duct and ventilation that are still not enough for a 4 tons system. Even after adding a return and increasing the...
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    The nameplate said Max Fuse Amp or Max Circuit...

    The nameplate said Max Fuse Amp or Max Circuit Breaker 40,
    and Min Circuit amp 29.2. I am starting to wander if my contractor had enough experience with that particular model, because they should...
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    Compressor blows up (again)

    I have an Amana ASZ18 + MBE 2000 that was installed in Sept 2008.

    The system was badly installed at first, and the heat pump was overcharged from the factory but the contractor insisted it was...
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    The system was installed when the outside temp...

    The system was installed when the outside temp was already very cold. The contractor mentionned that at this temp he could not check the charge properly.

    So now that the temp is higher, I should...
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    the model number plate says MAX. FUSE AMPS OR...

    the model number plate says
    MAX. FUSE AMPS OR MAX CIRCUIT BREAKER 40
    TIME DELAY FUSE OR HACR CIRCUIT BREAKER REQUIRED
    MIN CIRCUIT AMP: 29.2
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    heat pump Indoor fuse keeps closing

    My heat pump worked well during the winter, but when the outside temperature started to climb up around 40F, I had to reset the fuse on my electrical pannel twice already.

    The blower kept working...
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    They did not want to elaborate on the subject...

    They did not want to elaborate on the subject obviously, but because I had issue from the start with this setup, I would put it on an improper installation that caused damage to the compressor over...
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    As a follow up, after a week of this behavior...

    As a follow up,

    after a week of this behavior the heatpump finally stopped completely and triped the braker. That was just 4 month after the initial installation.

    The company that installed...
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    I wonder, because the heatpump and Tstat did work...

    I wonder, because the heatpump and Tstat did work well until the outside temp went below 14F.

    I have written to the Tstat tech support to see if they had an explanation.

    This model is kind of...
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    Good thinking but it did not work. I found the...

    Good thinking but it did not work. I found the setting in the thermostat, the defrost temp was set to 59F! This defrost temp setting had a range of 14F to 59F or disabled.

    I disabled it, but the...
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    heat pump strange behavior or maybe the thermostat?

    I came accross this strange behavior from my newly installed heat pump + blower with 10+10KW heating elements. I am not sure if it is the thermostart going crazy.

    Whenever there was a demand for...
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    Seems to be working now :cool: The tech has...

    Seems to be working now :cool:

    The tech has written H.P 510PSI / L.P 150PSI on the receipt. Outdoor temp was 59F at the time. How can I see if this was set according to the specs?

    I am...
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    ok the tech said he removed just enough gas to...

    ok the tech said he removed just enough gas to prevent the system from cycling when the outdoor temp is 60F, and said its working now. I can't test it myself until tonight, so we will see..
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    its all done, bigger cage, bigger exit, bigger...

    its all done, bigger cage, bigger exit, bigger filter but the HP still cycle.
    The installer thinks the HP might be overcharged now that he made these enlargement changes, but since his field of...
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    another follow-up, the installer is currently...

    another follow-up, the installer is currently replacing the 20" cage at the bottom with a 25" for more air flow, and the exit duct will be made bigger as well.

    One thing he noticed when he opened...
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    for cooling it had trouble maintaining the temps...

    for cooling it had trouble maintaining the temps specialy during the day with the sunlight coming in.

    For heating, it would have trouble maintaining the temp when the outdoor temp would go bellow...
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    Could you explain it ? I though that with a 2...

    Could you explain it ? I though that with a 2 stages you can have the HP run at 70%, when it does not require more, and 100% when it does. With a single stage you don't have that choice so sizing it...
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    I went to see the salesman and his boss directly...

    I went to see the salesman and his boss directly at the company headquarter, showed them a picture of the installation

    they said there was notting wrong with this setup since there was not enough...
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    can someone post picture of a typical coil/air...

    can someone post picture of a typical coil/air handler installation ?

    something I don't understand is that even if the coil is right under the blower, the return duct work will still make square...
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    So that explains the overload. What are the...

    So that explains the overload.

    What are the alternatives now, should I try to get the installer to rearrange the setup?
  30. Replies
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    you mean you can't see the attachement? try...

    you mean you can't see the attachement?

    try this link http://webpub.webhop.net/
  31. Replies
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    here is a pic from the side

    here is a pic from the side
  32. Replies
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    on the blower side, the CFM was set at 1600 CFM...

    on the blower side, the CFM was set at 1600 CFM for cooling and 1800 in heating. I tried setting the CFM to 2000 in heating but it did not change anything

    One thing is that the system design is in...
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    as a follow up, I am still waiting for a tech to...

    as a follow up, I am still waiting for a tech to come and fix the HP shutting down every 5 minutes. Still don't know what is the cause.

    I spoke with the head technician, he said he would come to...
  34. Replies
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    I called the team leader for the technicians, he...

    I called the team leader for the technicians, he said he would wait for the tech report, but when I explained that the HP was cycling on and off, he agreed it could be overcharged, and that he would...
  35. Replies
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    grrr..the same tech that did the original...

    grrr..the same tech that did the original installation came today

    - He tough a 4 ton HT might be too big for my ducts, not enough return air. He was going back to the office to check the HP specs...
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    I though I found the Ari certification number...

    I though I found the Ari certification number 1291805 on http://www.aridirectory.org/ari/unitary.html
    but its not a perfect match, this oine is for CA*F4860*6A* instead of CA*F4860*6B*

    ari...
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    .....actually discard that, I just found it on...

    .....actually discard that, I just found it on the web, just had to type the right key words :p
  38. Replies
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    The vendor made the matching but.... ...

    The vendor made the matching but....

    ASZ180481AB (Amana ASZ18) 18 Seer 2 Stage heat Pump
    MBE2000AA-1 (Amana V.S. Hair Handler that goes up to 2000CFM)
    CAUF4860D6 (Goodman Indoor Coil, had a...
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    I got them to come back tomorrow...and I will be...

    I got them to come back tomorrow...and I will be there to talk with the tech and for testing

    is there a place where I can find the service manual for the amana asz18? I found one one the net...
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    I stuck a temp probe right above the blower to...

    I stuck a temp probe right above the blower to see if the behavior was temperature related, while the outside temp was 60.1, inside temp was 73.4

    The heat pump started at 73.4 and stopped at...
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    unfortunately I was not there when the tech came,...

    unfortunately I was not there when the tech came, and he just left me a note saying he fixed all the configuration issue and leaks.

    When I tested myself all seemed in order, I didn't notice that...
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    it was 71.6 at the time of the test

    it was 71.6 at the time of the test
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    well I could see that the indoor blower would...

    well I could see that the indoor blower would turn on at half speed, the
    compressor, indoor coil and outdoor fan would start on low speed.

    There would be quite an amount of heat comming from...
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    I mean I can hear the noise from the heat pump...

    I mean I can hear the noise from the heat pump fan outside turning on, and the noise for the indoor coil as well as it is operating. The heat pump Fan is in low speed
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    as a follow up, the tech came and fixed the...

    as a follow up, the tech came and fixed the various issues, the system will activate all the stages, and the fan speed has been reduced a bit, from the default value.

    The Aube Tstat is working in...
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    Finally the company will send me their best tech...

    Finally the company will send me their best tech tomorrow, he already called me and asked to put in writting all the issues I found so he can check them tomorrow.

    In the mean time, I had a talk...
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    :) haha I see your point, I guess I have to...

    :)


    haha I see your point, I guess I have to test it in the field, as soon as I can get a tech to fix my system. I know what needs to be done, and I could do it myself but I prefer to let the...
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    I think the Aube TH146-P-U claim to support 1H1C...

    I think the Aube TH146-P-U claim to support 1H1C up to 4H2C, but it has only the usual relays (R,C,Y1,Y2,Y3,W1,W2,W3/O/B (Inverstion valve), G (fan), L (Fault) WW (defrost) and 1 outside temp sensor...
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    but for this wiring diagram, it shows the outdoor...

    but for this wiring diagram, it shows the outdoor thermostat wired directly into the MBE controller board,

    In my setup. the outdoor thermostat is only a temperature sensor connected to the indoor...
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    So basicaly Amana/Goodman are misleading...

    So basicaly Amana/Goodman are misleading customers when they advertise 2 stage Hp, when in fact they are only 2 speeds ?:eek: so there is no power saving, only better comfort.

    in the MBE manual...
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