Tunnel Signal Command For Ro Water Delivery To Tunnel; Storage Tank - Hoffman INNOVATEIT Instruction Manual

If the unit is inactive for 15 minutes, the unit will perform a fl ush cycle.
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fi g 2.3.2 - 1 - START button
Note: In the event of either low RO fl ow from the system (due to failed membranes or pump problems) or if the demand from
the tunnel exceeds the fl ow from the RO system, there is a municipal water line that uses a valve (E) to fi ll the RO tank if the
water level drops drop below 25%. This is to protect the re-pressurization pump and ensure rinse water is delivered to the
tunnel.

2.4 Tunnel Signal Command for RO Water Delivery to Tunnel

This signal is controlled directly by the tunnel system controller using a 24 Volt DC relay signal to the R.O. System Controller
and is used to turn on the Re-Pressurization Pump.
This signal switches on and off for each car in the tunnel based on the conveyor speed. The re-pressurization pump is limited
to 180 cycles per hour (maximum continuous cycle rate).
2.5 RO Storage Tank
The stainless steel RO storage tank is integrated into the stainless steel stand. Municipal water fl ows to a solenoid outside the
tank to automatically supply municipal water to the tank if there is a failure in the system.
Note: The solenoid supplies water if the RO pump or membranes have reduced RO fl ow.
10 | System Overview