Synesso Cyncra, Техническое руководство

Страница: 13 / 68

13
HYDRA BYPASS INSTALLATION AND SETUP
Pump cord installation: Insert the color coded pump cable into the opening of the matching bypass
box and attach the wires to the terminal as shown in the picture above: green wires stacked on the
ground bolt, white to white/red, black to black/blue, connect the bullet connectors.
Pressure regulator: Used to achieve the stage 1 low pressure pre-infusion. It is set and tested at 50
psi in the Synesso™ factory. This pressure setting can be lowered if desired, but 50psi is the maxi-
mum output pressure. To adjust the pressure regulator, first loosen the nut on the threaded post, then
turn the post counter-clockwise to decrease pressure.
Pump Bypass: First, set the pump and regulator to the desired pressures.
Manual group: Turn the associated brew group actuator to brew (2nd)
position, then back to the first position.
Volumetric group: set stage 1 time and bypass percent to zero. Press the
pitcher button.
The pin valve on the pump may then be adjusted until the brew gauge indi-
cates the desired pressure. 7 bar is our factory setting. Adjust to taste.
The Stage 1 (Pre-infusion) time and Stage 2 (By-
pass) time are set on the Temperature Control
screen of the display by following the directions
on page 33. Stage 1 time is set to 7 seconds and
Stage 2 is set to 3 seconds at the factory. Adjust to
taste.
Once these settings are in place, you will be able to taste the effects of four stage pressure ramping
applied to each shot. Start the shot to begin the Stage 1 pre-infuse timer. In this stage, low pressure
water will saturate the puck, swelling it to reduce channeling. After the stage 1 time has elapsed,
stage 2 bypass will begin. In this stage, the bypass system will help create a slow rise in water pres-
sure by diverting high pressure water away from the brew group. After the stage 2 time has ended,
the bypass will close and stage 3, full pump pressure (9 bar) will begin. Stage 4 is a return to by-
pass pressure. In the case of manual groups, entering stage 4 is determined by the operator and is
achieved by moving the group top actuator back to position 1. Volumetric groups can be programmed
to automatically begin stage 4 at a set percentage of the shot as described on page 57.