Hoshizaki ROX-20TA-U Instruction Manual page 32

* A water supply line shut-off valve and drain valve should be installed.
* The drains must have 1/4" fall per foot on horizontal runs to get a good flow.
* The drains should not be piped directly to the sewer system. An air gap of a minimum of 2
vertical inches should be between drain pipe ends and the floor drain, the hose ends from
the water electrolyzer and the floor drain, and the water supply line drain valve and the floor
drain.
* This water electrolyzer should be installed in accordance with applicable national, state and
local regulations.
* A plumbing permit and services of a licensed plumber may be required in some areas.
* Piping Example
Inspection Valve
Water Tank
Water Pressure Gauge
Water Filter
Water Softener
Vent Pipe
Shut-off
Valve
Drain Valve
Pressure Reducing Valve
Outside
Salt Water Tank
Unit
Fig. 29
28
Overflow Pipe
To drain
Trap
Shut-off Valve