La Marzocco strada ep Operating Manual - page 7

EN

7

•  Pressure  is  displayed  through  a 

pressure gauge with a scale from 0 to 

15 bar. 

•  Safety device, based on an expansion 

type 

mechanical 

valve, 

with 

counteracting spring adjusted to 13.5 

bar. 

•  Testing:  Hydraulic  test  at  18  bar 

performed  on  ready-to-use  small 

boilers, at our factory.

•  Brewing groups

They consist of a precision casting made 

of  stainless  steel.    The  brewing  group 

accepts  the  portafilter  used  to  hold 

the  ground  coffee;  the  espresso  flows 

through the brewing group, through the 

portafilter basket, through the portafilter 

spout,  and  into  the  cup(s)  after  the 

brewing button has been pressed.

• Exterior cover

It  consists  of  a  stainless  sheet  steel 

body. The structure has been the object 

of  specific  studies  to  provide  good 

aesthetics,  lower ergonometric costs for 

the  operator  and  reduce  the  chance  of 

damage to a minimum.

• Sound pressure

The weighted sound pressure level of the 

machine is lower than 70dBA.

• Water pump

There are two type of pump workink on 

this model of Strada:

•  Rotary  vane  positive  displacement 

pump  set-up  to  operate  anytime  an 

electric  level  gauge  whenever  the 

steam boiler needs to be replenished.

• Magnetic drive gear pump to 

operate whenever brewing coffee 

following manual or preset pressure 

profile from 0 to 12 bar.

THE MOTOR PUMP MUST BE SITUATED

CLOSE TO THE MACHINE IN AN ACCESSIBLE

PLACE FOR MAINTENACE BUT NOT FOR

ACCIDENTAL INTERFERENCE AND WHERE

THERE IS AN OPTIMAL AIR CIRCULATION