Pressure Control Valve/Safety (12 Bar) - Bunn Fast Cup Series Service & Repair Manual

LEFT PANEL LEFT PANEL
Pressure Control Valve (12 Bar)
Purpose: The pressure control valve is used as a
back up device if the water system should ever reach
12 Bar (174.05 psig). The mechanical spring/ball
valve will open to relieve system pressure to drip tray
and close once pressure is reduced below 12 Bar.
TEST INSTRUCTION
Enter Service Technician Mode and Select
Service icon
Step 1: Select and enter the Water System tab.
The water system pressure psig can be
monitored here for high pressure.
Visual
Step 2: Disconnect or unplug machine from power.
Step 3: Remove left panel to access water system.
Step 4: Locate pressure control valve.
Step 5: Observe the pressure control valve tubing
going to the drain port for water flow.
Water system over 12 Bar - Pressure con-
trol valve opened to relieve system press-
ure below 12 bar.
Water system under 12 Bar - Pressure
control valve open. Debris may be keeping
the valve open, replace pressure control
valve.
PART RELATES TO THE FOLLOWING SYMPTOMS
• Water system above 12 Bar, water entering drip
tray
• Water system below 12 Bar, water enters drip
tray during a brew process
.
SERVICE
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