Search:

Type: Posts; User: alexb

Page 1 of 7 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    16
    Views
    1,190

    Greetings; I've read that the reason why DIY is...

    Greetings; I've read that the reason why DIY is frowned upon, is mainly to avoid liability. This totally makes sense. For anyone who's willing to offer a few words of advice, how do we take a...
  2. Replies
    16
    Views
    1,190

    Thanks for the info -- If this doesn't work, I...

    Thanks for the info -- If this doesn't work, I promise to bring an HVAC person in to work on this --- I'd have no choice...

    -A
  3. Replies
    16
    Views
    1,190

    According to the documentation that was left...

    According to the documentation that was left behind with the AH, I removed the jumper between R and BK, then installed the Humid. controller there. I also jumped R and O. This is not correct? ...
  4. Replies
    16
    Views
    1,190

    OP here: Welp, I connected the Humidity...

    OP here: Welp, I connected the Humidity Controller according to the documentation, but it doesn't alter the behaviour of the AH at all. It doesn't spin down to low-fan while the tstat is calling...
  5. Replies
    16
    Views
    1,190

    OP here: I see. My tech documentation on the...

    OP here: I see. My tech documentation on the AH, says that "Humidistat will be installed between terminals R and BK - Also note that terminals R and O must be shorted for proper blower operation"....
  6. Replies
    16
    Views
    1,190

    OP here: Thanks -- so the only thing a...

    OP here: Thanks -- so the only thing a dehumidistat will do, is to force low-fan-speed when there's already an existing call for cooling? Will it turn on the compressor along with low-fan-speed...
  7. Replies
    16
    Views
    1,190

    How does dehumidification work with my AH?

    Greetings;

    With the technical docs that were left behind from my installer, I see that a humidistat can be installed to work with my system. It's not a seperate unit, but some function of the AH...
  8. Replies
    21
    Views
    1,244

    The one transformer in the A/C AH has a 3A fuse...

    The one transformer in the A/C AH has a 3A fuse on the 24v side, and the transformer for the heat (installed in 1963) has no fuse on the 24v side, except for the 15A breaker on the Primary (120VAC)...
  9. Replies
    21
    Views
    1,244

    FIXED! (I can't figure out why though, since it...

    FIXED! (I can't figure out why though, since it worked perfectly for 4 years then stopped..) I re-wired the two zone-valves, transformer, and tstats according to a diagram I found on Taco's...
  10. Replies
    21
    Views
    1,244

    OK - zone valve is rated for 24v and .9A. I...

    OK - zone valve is rated for 24v and .9A. I compared upstairs zone-valve, which works perfectly.

    Upstairs:
    25.1v coming from transformer
    dips to 21v when valve is opening, and is pulls .91A

    ...
  11. Replies
    21
    Views
    1,244

    'Fried' was my word I guess... What I've...

    'Fried' was my word I guess... What I've diagnosed, is that when the Tstat closes its relay, which should send 24v to the zone-valve; there's no voltage. If I bridge R and W on the Tstat, voltage...
  12. Replies
    21
    Views
    1,244

    Question: The "R" and "Rc" terminals on a Tstat...

    Question: The "R" and "Rc" terminals on a Tstat are where the 'hot' line from the transformer connects. Rc is power-for-cooling. Does this mean "R" is the power for heat? Is this how a Tstat...
  13. Replies
    21
    Views
    1,244

    the Tstat for downstairs is the one that died. ...

    the Tstat for downstairs is the one that died. The upstairs Tstat is a Honeywell item from ~2002 (programable), but it doesn't go 'click' when a call for heat is made. This older Tstat is working...
  14. Replies
    21
    Views
    1,244

    Fuse is still intact - I still see 28VAC at the...

    Fuse is still intact - I still see 28VAC at the Tstat. I could swap the two zone valves to see if the problem follows the valve - but that's an expensive fix; because it fries an $80 Tstat.

    For...
  15. Replies
    21
    Views
    1,244

    There's a 5A automotive-type fuse that powers the...

    There's a 5A automotive-type fuse that powers the transformer. I think I left something out -- when the Tstat calls for heat, and closes the ckt for heating, the current routes thru one of those...
  16. Replies
    21
    Views
    1,244

    Burning up a Tstat??

    Can I get a professional opinion? I've been running just fine for 4 years with a Honeywell CT3500 Tstat. Just before Christmas my furnace stopped coming on. I traced this to the fact that the...
  17. Replies
    27
    Views
    7,553

    The old boiler (from pics of the nameplate) ...

    The old boiler (from pics of the nameplate)

    Federal Boiler model GFS-17. AGA input 175K AGA output 140K net output 123K The house was built in late '64, into '65. Boiler was working fine --...
  18. Replies
    27
    Views
    7,553

    Question: That smaller horizontally-mounted...

    Question: That smaller horizontally-mounted expansion tank has wording on it, that says it's for domestic hot water expansion. BUT: The tank is definitly on the cold-water input to the tank. Do...
  19. Replies
    27
    Views
    7,553

    Late-breaking news -- one of the union...

    Late-breaking news -- one of the union connections right in front of where they cemented over the flue opening started leaking, and put a puddle on the floor, that was about 10feet in diameter. The...
  20. Replies
    27
    Views
    7,553

    mech_head said: C'mon, tell the truth, you knew...

    mech_head said: C'mon, tell the truth, you knew going in you were going to post this here didn't you?
    _______________________________

    Oh yea, had the camera ready on this one..

    The PVC...
  21. Replies
    27
    Views
    7,553

    1965 Federal Boiler Replacement (Weil McLain)

    Had to have the old 1965 Federal Boiler replaced.. (Baseboard & Domestic hot water) The only requirement was that it be direct-vented - we recently found out, from a recent PM, that the flue was...
  22. Thread: Picture U/L test

    by alexb
    Replies
    7
    Views
    1,428

    Picture U/L test

    Test to see if I can U/L a pic...


    Before caption........
    http://mysite.verizon.net/batsona/OldBoilerLeft.JPG
    After caption........
  23. Replies
    4
    Views
    784

    Thanks for the words of wisdom. I do recognize...

    Thanks for the words of wisdom. I do recognize that the mfgr. is claiming to reduce the temp. swings by altering the current being fed to the element, which is apparently their claim-to-fame.
    ...
  24. Replies
    4
    Views
    784

    Experience with HydroSil elec baseboards...

    I saw an ad recently for HydroSil elec. baseboard heaters. My house needs some supplemental heat, and HydroSil's "proportional" metering systems delivers just enough current to the element to...
  25. Replies
    15
    Views
    1,575

    I think I know the answer to this, but I'll ask...

    I think I know the answer to this, but I'll ask anyway. Some heaters are called "power-vent", meaning they have the elec. motor & vent fan that sits on top. Does that type of setup *require* the...
Results 1 to 25 of 153
Page 1 of 7 1 2 3 4
Comfortech Show Promo Image

Related Forums

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