Results 1 to 7 of 7

Thread: Wiring Diagrams

  1. #1
    Join Date
    Jul 2005
    Location
    Phoenix, AZ
    Posts
    266

    Wiring Diagrams

    What is the best way to learn wiring diagrams for RTU's, heat pumps or any other pieces of complex equipment? Just curious.

    Sent from my DROID RAZR using Tapatalk 2

  2. #2
    Join Date
    Feb 2006
    Location
    Phoenix,AZ
    Posts
    2,877
    Quote Originally Posted by phxhvac View Post
    What is the best way to learn wiring diagrams for RTU's, heat pumps or any other pieces of complex equipment? Just curious.

    Sent from my DROID RAZR using Tapatalk 2
    Knowing the sequence of operation helps alot!!!

  3. #3
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    4,587
    Learn when it's not -10* outside
    Officially, Down for the count

    YOU HAVE TO GET OFF YOUR ASS TO GET ON YOUR FEET

    I know enough to know, I don't know enough
    Liberalism-Ideas so good they mandate them

  4. #4
    Join Date
    Dec 2012
    Location
    columbus, OH
    Posts
    2,032
    Quote Originally Posted by KB Cool View Post
    Knowing the sequence of operation helps alot!!!
    yep, if thiers a board or boards involved its the only way.

  5. #5
    Join Date
    Jan 2010
    Posts
    6,239
    Quote Originally Posted by 2sac View Post
    Learn when it's not -10* outside
    Yep...or only work on units where the diagram is on the service panel. Then take it inside (been there done that).

  6. #6
    Join Date
    Jul 2011
    Location
    Lehigh Valley, PA
    Posts
    428
    Start with small electrical sections. Work your way up. Clearly understand the high voltage whether it be three phase or single phase from the low voltage control circuits. Understand what each symbol stands for and how that part reacts in the circuit. i.e. Is this part some sort of switch that only sees one side of the circuit? Or is this a motor requiring both sides of the power? Look at 1p motor capacitor schematic wiring carefully and absorb. 3p motors will not require run or start caps. Look for wiring numbers on the wire itself matching the schematic.

    Hardest part for me, those darn schematics are too small and always faded.

  7. #7
    Join Date
    Mar 2009
    Location
    Mid-Mo
    Posts
    3,595
    Quote Originally Posted by VTP99 View Post
    Yep...or only work on units where the diagram is on the service panel. Then take it inside (been there done that).
    Or outside if it's a freezer....

    Time time time time.

    First time you see it just get familiar with what does what, next thing you know it'll be all good.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

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