Synesso MVP Hydra Technical Manual

19
4 STAGE PRESSURE RAMPING SETUP - MVP HYDRA
Pin Valve for Bypass
Pressure (Ramp Up
and Ramp Down)
Pump Pressure
Adjustment Screw
MVP Hydra Bypass Pump and Motor Assembly
Pressure Regulator for
Preinfusion Pressure
MVP Hydras come with a bypass pump and mo-
tor assembly that allow for four-stage pressure
ramping. The shot begins with preinfusion. Low
pressure water saturates the puck, swelling it to
reduce channeling. Aer the preinfuse me has
elapsed, ramp up (bypass) begins. The bypass sys-
tem creates a slow rise in water pressure by par-
ally diverng water away from the brew group.
Aer the ramp up me ends, the bypass closes
and the full brew pressure (typically 9 bar) stage
begins. To complete the extracon, the shot is
then returned to bypass pressure in the ramp
down stage. The pump then shuts o to end the
extracon, returning the machine to idle pres-
sure.
To set up the four-stage pressure ramping:
1. Begin from “M” mode. Shi the group handle to the le to begin preinfusion.
2. While observing the brew pressure gauge, adjust the pressure regulator. To adjust, pull outwards on the
black knob. Turn the knob clockwise to raise pressure and counterclockwise to lower pressure. Press the
cap back in when done. Recommended preinfusion pressure is 3.5 bar.
3. Shi the group handle to the le twice more to reach the third (full pressure) stage.
4. While observing the brew pressure gauge, adjust the pump adjustment screw. To adjust, loosen the lock
nut on the screw. Using a at head screw driver, engage the screw, turning clockwise to raise the pres-
sure and counter-clockwise to lower the pressure. When nished, ghten the lock nut to secure the ad-
justment screw. Recommended full pressure is 9 bar.
5. Shi the group handle to the le once more to reach the fourth (ramp down) stage.
6. While observing the brew pressure gauge, adjust the pin valve. Turn the handle of the valve clockwise to
raise the pressure and counter-clockwise to lower the pressure. Recommended bypass pressure is 7 bar.
*Note that if the pump or regulator pressures are adjusted, they will aect the bypass pressure.
7. To complete the setup for operaon in MP or VP modes, access the machine programming via the
handheld controller to set the preinfusion me, ramp up me, and ramp down percentage (VP mode on-
ly). See pages 40 and 41 for more informaon on how to adjust the sengs.

Synesso MVP Hydra Specifications

General

Brand	Synesso
Model	MVP Hydra
Category	Coffee Maker
Language	English