19
Safety Features
The Optima was designed with operator safety first in mind. There are multiple safety
features that protect both the operator(s) and the Optima. Understanding the Optima’s
safety features will enhance the user experience and assist you when troubleshooting
The Optima’s Main Safety Features:
1.
Pressure control switch:
The pressure switch is permanently set on to both 8.5 bar (123.2
psi) and 9.5 bar (137.7 psi). The heaters will shut off if the steam pressure exceeds the preset
pressure on 8bar and will automatically reactivate when pressure decreases below 7 bar
(101.5 psi). 9.5 bar (137.7 psi) pressure switch are for the safety device on emergency only.
2.
Thermistor & Air purge valve:
The temperature setting is between 90~100
℃
(194 ~ 212
˚
F). It
controls the electronic valve for air purge. If the Thermistor reading is below the preset range,
the machine will release air from inside the steam vessel at initial pressurizing stage. This will
prevent any machine operation interference caused by false pressure reading due to internal
air.
3.
Safety valve:
Pressure is released when steam pressure exceeds 9.5 bar (137.7 psi).
4.
The low water probe sensor:
The sensor prevents the vessel from heating without sufficient
water in the steam vessel.
5.
Non-return valves:
Two non-return valves prevent steam from back drafting.
6.
Y-strainer:
The Y-strainer is connected to the steam drain. It is designed to break first before
other important parts when a freeze rupture occurs.
7.
Water pump running time:
The water pump is programmed to shut off after running for 60
seconds (in normal operations) in order to avoid dry running.
8.
Programmed operating:
The intelligent system checks for the machines condition and takes
necessary steps to prepare for the machine for a safe operation.
