24
98-0155 Rev. C
14. With the RO Operating, adjust the valve on the
Reject
flowmeter until the flow rate is
equal to the product flow rate of the RO. This will be 50% recovery. Operating the RO at
higher recovery percentage may reduce the life span of the RO membranes. Recovery is
calculated via the following equation:
(
)
(
)
100% =
15. With the RO Operating, adjust the valve on the
Recirculation
flow meter until the
recirculation flow rate is approximately 1/3
rd
of the reject flow rate.
16. Starting the RO the first time, the user can verify that the RO is operating correctly by
checking the flow meters, the controller and the inlet and outlet pressure gauges. The flow
meters will show movement on the flow bobbers in the flow meters. The flow meters
should be reading 50% product / 50% reject and 33.3% recirc. The controller will show on
the screen operating parameters, such as quality of water, Temp of water. The incoming
and outlet gauges will show pressure reading on the gauge. There will be a differential of
pressure between the two gauges.
17. When operating an MROZ with a direct feed loop, the feed water pressure should be
adjusted to approximately 25-30 PSI on the regulator found on the product recovery kit.
Setting the pressure above this may result in reduced RO permeate flow in the direct feed
loop.
WARNING: The Clean in Place Switch, located inside the cabinet on the back of the
controller, must be in the OFF position during normal operation. If the
Clean in Place Switch is left in the ON position during normal operation, all
MROZ fail-safe modes will be disabled, and damage to the MROZ or injury
to the patient may occur.
18.
Minimize the opportunities for bacterial growth between uses!
Whenever the MROZ is not used for a period of several hours, and connected to a
Direct Feed Loop, the “Membrane Flush Feature” of the MROZ should be programmed
to be active when in the STANDBY mode (See section 5 for activating this feature).
Whenever the MROZ is not used for a period of several hours, and connected to a
Storage Tank of a Central System, the “Membrane Flush Feature” of the MROZ should
be programmed to be active when in the OPERATE mode (See section 5 for activating
this feature). This feature will flush the MROZ when the Storage Tank is full and the
water level is maintained at the Tank Full High float switch by diverting the Product
Water to drain.
Before determining a bacteria count, the MROZ should be PLACED in FLUSH for 5
minutes (fully opened reject flow control knob), and then placed in OPERATE for 5 –
10 additional minutes after a period of non-use, but before taking a sample of the
PRODUCT WATER. Bacteria are known to increase in population when water is not
moving.
Summary of Contents for MRO3Z
Page 2: ...98 0155 Rev C ...
Page 5: ...98 0155 Rev C ...
Page 13: ...8 98 0155 Rev C MRO7Z and MRO8Z CONFIGURATION SHOWN BELOW Figure 3 2 ...
Page 15: ...10 98 0155 Rev C 3 2 INTERNAL CABINET TOP AND SIDE VIEW Figure 3 3 ...
Page 16: ...11 98 0155 Rev C 3 3 INTERNAL CABINET TOP AND SIDE VIEW CONT Figure 3 4 ...
Page 18: ...13 98 0155 Rev C 3 4 ELECTRICAL DIAGRAM AND FIELD WIRING Figure 3 5 ...
Page 19: ...14 98 0155 Rev C Fig Figure 3 6 ...
Page 20: ...15 98 0155 Rev C Figure 3 7 ...
Page 21: ...16 98 0155 Rev C 3 5 FLOW DIAGRAMS Figure 3 8 ...
Page 22: ...17 98 0155 Rev C Figure 3 9 ...
Page 23: ...18 98 0155 Rev C Figure 3 10 ...
Page 24: ...19 98 0155 Rev C Figure 3 11 ...
Page 25: ...20 98 0155 Rev C Figure 3 12 ...
Page 26: ...21 98 0155 Rev C Figure 3 13 ...
Page 46: ...41 98 0155 Rev C FIGURE 6 3 ...
