Rancilio EGRO 55 Series Technical Manual page 57

4.1 INTRODUCTION
The electrical section of this manual details the electrical components of the Egro 55 series machines.
The electrical components are broken out into three main sections, 1. High voltage 2. Low voltage 3.
Motherboard.
4.2 HIGH VOLTAGE COMPONENTS
WARNING: TURN THE MACHINE OFF AND UNPLUG IT FROM THE WALL
PRIOR TO WORKING WITH ANY HIGH-VOLTAGE COMPONENTS!
PUMP MOTOR: Generation 1
55 Series machines are equiped
with a magnetically controlled 230v
CMP-71100 internal water pump.
The pump is water cooled for longer
motor life.
GRINDER MOTORS
The 55 series is equipped with two
independently controlled 230V
1 / 2
hp Ditting grinder RPM motors.
1690 RPM. 150w.
© Copyright 2008. Rancilio North America
PUMP MOTOR: Generation 2
55 Series produced after May 2008
utilizes a spindle-driven pump to
accommodate high volume use while
providing consistent, sustainable
pressure for each and every shot.
- Section 4: Page 2 -
EGRO 55 SERIES TECHNICAL MANUAL
EGRO 55 SERIES TECHNICAL MANUAL
E55_TM_S4_electricalV3