S
M
City
Water
Inlet
Fresh Water
Storage Tank
Mechanical Float /
Valve
High Pressure
Pump
Water to
Wash
Check
Valve
Solenoid
Valve
Treated Reclaim
Water from Pur-
Water Unit
Plumbing Direct from Pur-Water
Reclaim Unit to High Pressure Pump
Notes:
1. Solenoid Valve to Open when High Pressure Pump Starts. Same Signal to be Used for Reclaim Activation.
2. Solenoid Valve Needed to Prevent Reclaim Unit from Pushing Water thru High Pressure Pump.
3. Solenoid Valve to be Mounted 4 Ft. Minimum from Pump Suction.
4. Check Valve to be Flapper Check Type. Do not Use Spring Check.
5. City Water Line and Mechanical Float / Valve Must be Sized to Ensure Enough Water Volume is Available to High Pressure Pump.
6. Suction Piping, Solenoid Valve, and Check Valve Must be Sized to Ensure Enough Water Volume is Available to High Pressure Pump.
Plumbing Reclaim Water Direct to the High Pressure Pump Prevents
Reclaim Water from Setting Stagnant in the Suction Storage Tank.
Biological Activity Will Accelerate in Stagnant Reclaim Water, Causing
Growth in the Tank and Odor in the Area.
Operation:
A) No Wash Demand / Reclaim Unit in Recirculation Mode: High Pressure
Pump is Off and Solenoid Valve is Closed. Line Pressure Keeps Check
Valve Closed.
B) Wash Demands Reclaim Water / Reclaim Unit On: High Pressure Pump
Operates and Solenoid Valve Opens. Reclaim Unit Ramps Up to Meet
Water Demand. As Long as Water Demand to High Pressure Pump is Met,
Check Valve Remains Closed.
C) Wash Demands Reclaim Water / Reclaim Unit Off: High Pressure Pump
Operates and Solenoid Valve Opens. No Reclaim Water from Reclaim
Unit, So Check Valve Opens to Feed Fresh Water from Storage Tank.
Drawing # 1S
3) Recirculation Line:
This 1” line provides a return line of treated water back
into the first reclaim tank, compartment #2. A solenoid valve (normally open)
on this line closes only during the Automatic Pump Prime operation.
a.
Air Sparger Units
(Models ending in -5MAS): The recirculation line is
connected to the air sparger within the reclaim tank. (See below for air
sparger assembly installation.)
b.
Enzyme Units
(Models ending in -5MB): The recirculation line will be
supplied with an enzyme injection point on the reclaim unit and is connected
to the air sparger within the reclaim tank. (See below for air sparger
assembly installation.)
c.
Ozone Units
(Models ending in -5M12O or -5M24O): The recirculation line
will be supplied with a Mazzei eductor connected to an ozone generation
system. The line in the tank should extend halfway down the normal water
level and terminate in a tee to split the flow. An air sparger is not required.
(Note: Rubber hose is not compatible with ozone. All piping containing
ozone should be PVC.)
d.
Air Sparger Assembly:
The air sparger assembly is installed into the first
reclaim tank, compartment #2. It should be located so that it is accessible
from the manway as occasional inspection and maintenance are required.
