Search Results - HVAC-Talk: Heating, Air & Refrigeration Discussion

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Type: Posts; User: tedhvac

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  1. Replies
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    691

    absolutely... low voltage transformers giving...

    absolutely... low voltage transformers giving screwy output is first i would check, too much vibration causing bad contacts/connections on PCB would be another... etc...
  2. Its connected to a Nordyne VS AH. The thermostat...

    Its connected to a Nordyne VS AH. The thermostat is a Honeywell 9421 Prestige Series; not the older visionpro.

    On the thermostat there is an "equipment status" option that shows what stages are...
  3. hp is a hpxa16 with a electric VS AH; looked at...

    hp is a hpxa16 with a electric VS AH; looked at wiring and of course the "Y2 out" was not wired directly to the AH; now AH speeds are as expected on a locked in y2, however 9421 is obviously not...
  4. thanks for the reminder..... defrost board locks...

    thanks for the reminder..... defrost board locks in compressor y2 at min setting - 40f, good! So far balance point seems to be at around 15f considering that actually y2 has been energized all this...
  5. design temp is 70/-7; today is 15 outside and...

    design temp is 70/-7;
    today is 15 outside and 72 inside, compressor run time averages 40min-60min/hr in these conditions in 1st stage.
    system was sized for heating (@80%); for summer time there is...
  6. 2 stage HP....... lock out low stage on max run time??

    Honeywell 9421 coupled to a 2 stage hp with aux heat as back-up. I set up compressor CPH to 2 for both stages and now compressor run times are great at roughly minimum 20 min at a time at or below...
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    I seize to see how this is entertaining to...

    I seize to see how this is entertaining to you...:gah:

    ..this is for a close friend and I want to make it bulletproof........ not knowing the actual size of the evap coil will actually make a...
  8. Replies
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    361

    charge compensator advice

    ...installing a 3 ton - 2 stage heat pump on an existing 2.5 ton txv evap coil.

    Do you think its necessary to install a Charge Compensator, for heat mode, considering the evap is slightly Smaller...
  9. thanks Mark, that's great information, but I am...

    thanks Mark, that's great information, but I am guessing that I will still have to use a communicating thermostat (xl900 or Comfortlink2) to control the air handler (honeywell iaq will not work?),...
  10. TRANE TAM8 communicating connected to non-communicating equipment....?

    here it goes...

    I have a tam8 communicating air handler. I want to get it connected to a lennox 2 stage heat pump, however the tam8 is a communicating air handler and I have no way of connecting...
  11. 4 zone inverter mini split sized for heating

    Kk looking for ideas for an HVAC install at a ~1700 sq ft split level in Quebec, currently heated exclusively on Baseboards. Electricity cost ~ 0.07 cents. Nat gas is not an option. Heating req,...
  12. Thread: goodman GSZ13

    by tedhvac
    Replies
    7
    Views
    845

    hay guys, that is great information, exactly what...

    hay guys, that is great information, exactly what i was looking for. I had no idea that Daikin had bought them. Inverter sure seems the way to go, especially when sizing for heating in northern...
  13. Thread: goodman GSZ13

    by tedhvac
    Replies
    7
    Views
    845

    goodman GSZ13

    Ok pros, here is a brain buster...

    reading posts on the forum I gather many of you pros don't like Goodman. After doing some research and looking at the top manufacturers I could not find 1 that...
  14. ....... uhmm actually they do. Nordyne models...

    ....... uhmm actually they do. Nordyne models that feature the Copeland Ultra-tech Scroll are 2 stage, just like any other brand that is 2 stage and features that same Ultra-tech compressor!
  15. manual J round up? for a 2 stage heat pump to maximize heating

    Hi members, I am getting ready to install a complete (incl ducts) hvac solution in a '77 build 1600 sq.ft split level in Montreal, Quebec (design outdoor heating/cooling -7F/83F respectively). Manual...
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