11
Blending Valve Adjustment Instructions:
IMPORTANT NOTES:
• Typical TDS (Total Dissolved Solids) values for coffee are 80-200 ppm (parts per million) and occasionally lower for espresso, depending
upon taste preference. Typical TDS valves for steam and combi ovens are less than 50ppm.
•
The blending valve should be set at start-up and checked periodically. This valve is a precision metering valve that has a lock nut.
•
To set blending valve use TDS monitor set in the "out" position.
1. Open the blend line shut off valve.
2. Allow the unit to run for 2 minutes.
3. To adjust blending, rotate the blending valve to the left (counterclockwise) to increase the product water TDS and to the right (clockwise) to
decrease the product water TDS (See Figure 5 item #2 below). The blending valve should be opened intermittently a quarter turn at a time.
Check the TDS after each incremental adjustment and again two (2) minutes after the desired TDS value is reached. Re-adjust and check, as
needed. (See Figure 5-item #2 below)
4. Lock the blending valve using the lock nut.
5. After product water TDS is set, it should be checked periodically during operation to confirm it is at the desired level.
IMPORTANT NOTE:
The TDS Monitor is push-button operated and requires two (2) 357A batteries. (Included in TDS meter)
Membrane Flushing Instructions:
WARNING:
Flush RO Membrane Cartridge: Before use this cartridge must be flushed as specified in the Installation Instructions. Discard any water
generated before the flush procedure is completed. Failure to do so could cause serious injury from exposure to chemicals that can be
extracted from the RO membrane during this initial flush.
1. Open the tank line sample valve.
2. Close the blend line shut off valve. (Figure 5, #1)
3. Operate the unit for 24 hours minimum to flush the RO membrane. Discharge all water
generated during the flushing procedure to drain.
4. Close the tank line sample valve.
5. Open the blend line shut off valve if required for the application.
6. Allow unit to operate and fill the storage tank.
Storage Tank and RO System Sanitizing Instructions:
Sanitizing the storage tank requires:
• Common household bleach (5.25% non-scented) or sanitizing agent
• Eye dropper or plastic oral syringe
a.) Unplug the unit from the electrical outlet.
b.) Connect a length of tubing to the tank line sample valve and route this line to drain.
c.) Open the tank line sample valve and empty the storage tank.
d.) Close the tank line sample valve
e.) Disconnect the 1/2" line from marked “Tank Outlet” to storage tank.
f.) Insert 15ml (0.5 ounces) of bleach or sanitizing agent into 1/2" line to storage tank.
g.) Reconnect the 1/2" line to storage tank.
h.) Plug the unit into the electrical outlet and operate the unit for 10 minutes.
i.) Unplug unit from the electrical outlet.
j.) Wait 4-5 hours.
k.) Open the tank line sample valve and empty the storage tank.
l.) Close tank line sample valve and remove drain tube.
m.) Plug the unit into the electrical outlet. Operate system until storage tank is full.
n.) Sanitizing is now complete.
o.) If there is any residual chlorine/bleach taste, drain storage tank completely a second time.
2
1
Figure 5
1 - blend line shutoff valve
2 - blending valve
Содержание ScaleGard HP Reverse Osmosis System
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