SECTION 4-4
OPERATION
FLOWMAX RO MANUAL REV: B 05/1999
USFilter
United States Filter Corporation
The RO unit should never be run in the HAND mode unless it will be
continuously attended by a service technician. Operation in this mode over
rides the automatic shutdown signal provided by the RO product water
storage tank level sensing device. This can cause the tank to over fill, causing
possible damage to the storage tank or damage to surrounding equipment.
3.
Verify that the product and reject flows are correct. If not, adjust the pump discharge
throttling valve and the reject valves until the correct parameters are reached.
Adjustment procedure:
First,
adjust the unit to make the correct amount of RO product water by adjusting
the system pressure. This can be accomplished by regulating the pump discharge
throttling valve. Further OPEN the valve to
increase
the system operating
pressure and productivity, further CLOSE the valve to
reduce
the system
operating pressure and productivity. Once this flow is correct, make a note of the
operating pressure.
Second
, adjust the unit to make the correct amount of reject to drain flow by
adjusting the reject throttling valves. Control the majority of the flow with the
ball valve and fine tune with the globe valve. OPEN the valves to obtain a
higher
flow rate or CLOSE the valves to
reduce
the flow rate.
NOTE:
This is some what of a "balancing act", in that as you close the reject valves, the product
flow increases and the reject flow decreases. As you open the pump discharge throttling
valve, the product and the reject flow increase. You may have to adjust the pump
discharge throttling valve to reestablish the operating pressure to obtain the correct
product flow as established in the first step.
4.
Once the RO unit is operating at the parameters outlined on the RO Operating
Specification Sheet in Section 6.2, record the operating parameters on the data collection
form. (A sample form is in Section 6.1.) It is imperative to record the operating
parameters daily, since RO trouble shooting may require a trended analysis of the RO
operating parameters.
NOTE:
If the RO will not start, or can not achieve the correct flows, go to the trouble shooting
section for more information.
5.
If the RO unit shuts down due to a fault condition, you must turn the HOA switch to
OFF, then back to AUTO (or HAND) to reset the Control Panel.
4.3 SHORT TERM SHUTDOWN PROCEDURE
NOTE
:
There are two methods for shutting the RO unit down.
Short term shut down
is for when the system will be down for a short period of time, as
to perform brief maintenance or service.
CAUTION
