Honeywell Vista 20P Wiring Diagram. * this example of standard wiring shows an example of a unit powered up using the s.l.i.c. He takes you through the wiring of the transformer, keypad.

This one is marked wa20p which indicates that this is a vista 20p. Honeywell vista series 15p, 20p, and 21ip basic wiring back to main wiring a honeywell security system can seem intimidating at first glance but it's really not. Interactive services with the honeywell vista 20p.