Technical Manual 23
Electrical System
The electrical system in a Synesso™ is relatively straighforward. This chapter will cover the
fundamentals of the electrical layout and function of the electrical features of the machine.
SAFETY NOTE: Please use caution when working on any part of the Synesso™ electrical
system. Live current poses the risk of electrical shock, harm, permanent injury or death. Take
all appropriate precautions, including turning off the machine, breaker, and/or unplugging the
unit prior to working on the machine.
The major components of the electrical system can be broken down into the following functional
categories:
1. Heating components (temperature probes, elements, thermal resets, and various parts of the CPU)
2. Water control (water inlet valves, brew valves, mix and hot water valves, water level probes an
various parts of the CPU, rocker and brew/preinfusion switches, pump and motor)
3. Operator feedback (visual display)
The locations and descriptions of the components above were covered in the last chapter “Hydraulic
System,” with the exception of the CPU and display, which will be covered in this chapter.
ELECTRONIC SYSTEM