G1 to G1b LOW VOLTAGE Schematic to Pictorial

You will now draw the Pictorial by following the Schematic

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

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.

Before you begin to wire any low voltage circuit, you need to identify the low voltage ‘POWER’ side and ‘COMMON’ side of the transformer. The ‘POWER’ side is ALWAYS the side that goes to the identified terminal on the thermostat. In this diagram it is the ‘V’ terminal. This is for ITT, which is no longer used. It will be the ‘R’ terminal instead of this ‘V.’ See below where I have identified the ‘POWER’ side and the ‘COMMON’ side of the transformer. Now move onto the next slide and complete the pictorial. PC

Since there are two yellow wires, you need to identify which one is ‘P’ and ‘C’ or you will wire the unit incorrectly. It does not matter which one is ‘P’ or ‘C.’ See below. P C

‘V’ of the terminal strip on the equipment. ‘V’ on the thermostat

P C

You have finished the LOW VOLTAGE circuit.

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