Dosing Valve Disabled
When the dosing valve is disabled, the maintenance modes become visible.
Quick Service – the quick service button engages a solenoid which routes gaseous nitrogen (GN
2
) through
the body to the dosing head. This is typically used to purging the system to ensure a clean pathway for
liquid to flow. If a system has been left off for some time or exposed to air, moisture may have
accumulated which could result in ice formation causing a blockage in the system. Purging by sending
gaseous nitrogen will “dry out” the system.
IMPORTANT: Press and HOLD [Enable Quick Service] to activate.
Self Test – used to test the firing of the dosing solenoid. Pressing self test activates the solenoid for 5
pulses.
Drain – used to drain liquid nitrogen from the body of the UltraDoser through the dosing head.
IMPORTANT: Press and HOLD [Normal] to activate.
Dosing Valve Enabled
When the dosing valve is enabled, the maintenance modes become invisible.
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