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3.2.1 Water Supply
The water supply must be able to supply a minimum of 25 GPM (Standard Flow)/35 GPM (High Flow) at 40-60 psi to the RO
unit. The fl ow lines need to be sized to minimize pressure drops per accepted plumbing design guidelines.
Normal operating feed fl ow will vary between 10 and 22 GPM depending on water temperature. At this condition, the feed
water pressure does not exceed 70 psi. HF unit will vary between 15 and 35 GPM depending on the RO fl ow demand. If you are
using a booster pump, set the booster pump to 60 psi.
3.2.2 Floor Drain
All water drains and overfl ow lines must drain to the fl oor drain. The R.O. System plumbing is constructed to allow a visual
indication of water fl owing to the drain to help diagnose proper system operation. The RO tank has a 2" female overfl ow plug
equipped from the manufacturer.
3.2.3 Compressed Air Supply
•
(1CFM 80-100PSI) Hook up ¼" push connect. The pilot-operated air valves require a supply of compressed air to
operate.
•
Install a compressed air supply line on the back wall of the equipment room in the vicinity of the RO System.
Add a ball valve and fi tting to allow running an airline to the pressure regulator/water separator located on the RO
•
frame.
This air supply is required to operate the ASCO 8290 air-operated air valves. The air valve manifold is located inside the RO
System controller. The regulator should be adjusted to provide a minimum of 80 psi to the pilot solenoid valves. The water
separator is checked daily to ensure dry air is supplied to the solenoid valves.
3.2.4 Unit Placement
Locate where the equipment will be installed with your installer. The R.O. System should be located 4-6 inches from the back
wall.
There are a total of three water lines that must be attached to the unit:
Municipal Water Feed – 1.5" Hose
1.
RO Reject to RO Reject Tank – 1.5" Hose
2.
Re-pressurization Pump to Tunnel – 1.0" Hose
3.
Use 200 psi hose (Eaton BOSFLEX or equivalent) and heavy-duty stainless steel hose clamps on every connection to ensure
reliable operation.
Lines should be positioned to minimize bends, and lines from tanks should hang in a manner to minimize loading on the stain-
less fi ttings.
If needed, install additional clamps or hose supports to RO frame to reduce movement of hoses during operation.
Installation Requirements
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