1. Schematic to Pictorial
G3a LOW VOLTAGE
Schematic to
Pictorial

2. You will now draw the Pictorial by following the Schematic

3. The process will be to follow the schematic one wire at a time from one component to another component until you are finished.

4. The slides that follow will show the wire in RED on the schematic that is going to be wired on the pictorial. Then the pictorial slide will show that wire being ‘installed.’ This is the wire you are to place on your pictorial. Keep advancing through this slide presentation until you are finished with the pictorial.

5. G3a states that there is NO schematic. But in fact, there is
G3a states that there is NO schematic. But in fact, there is. The schematic(s) you will use are the schematics found on pages G1, G2 and G15 for help.

6. The key to this schematic is to recognize that there is a two speed fan motor and the relay is a SPDT. You may need to refer back to the G15 Power Point Presentation as a refresher on how a 2-spd fan motor and SPDT relay are wired.

7. P C Identify the ‘P’ and ‘C’ of the low voltage transformer. You
will notice a fuse on the transformer. The fuse is on the low
voltage side, so this is the side I selected for my ‘P’ and ‘C’
terminal ID. Now you can proceed with the pictorial by
advancing to the next slide.

16. You have finished the LOW VOLTAGE circuit.

17. The next slide shows your completed PICTORIAL and this is what you need to show your Instructor for credit.

19. THE
END