Armstrong FLO-RITE-TEMP 8120DW Installation And Adjustment Instructions - Page 16

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Armstrong FLO-RITE-TEMP 8120DW Installation And Adjustment Instructions

Clean-In-Place Operating Instructions

When there is a noticeable drop in the Flo-Rite-

Temp's — hot water capacity, temperature, or an increased

water pressure drop across the unit — tube bundle scale

removal should be considered using the commercially

available product called RITE-Qwik*.

Tube bundle scale removal can be accomplished as

follows:

Step 1 - Shut off steam supply valve #1 to the Flo-Rite-

Temp.

Step 2 - While the water pressure is still ON and the steam is

OFF, run the Flo-Rite-Temp for (10) ten minutes or until the

outside of the unit is cool to the touch.

Step 3 - Shut the water inlet valve #4 OFF and water outlet

valve #5 OFF; open cleaning connection outlet #7. Connect

air hose with regulator to valve #9. Turn air on slowly to

approximately 5 psi. Increase to maximum of 25 psi. Leave

air pressure on until water stops coming out of connection

#7. Turn air (valve #9) off. Open cleaning connection inlet #8

and remove the pop-off valve or inlet pipe plug #6 from the

lower diaphragm cover of the control valve . Let the

remaining water drain by gravity from the Flo-Rite-Temp.

Step 4 - After all the water has been drained, reinstall the

pop-off valve or pipe plug #6 into the lower diaphragm cover

of the control valve.

Step 5 - With hose valve closed connect return hose A of the

Clean-in-Place to the outlet cleaning connection #7 of the

Flo-Rite-Temp.

Step 6 - With hose valve closed connect discharge hose B of

the Clean-in-Place to the inlet cleaning connection #8 of the

Flo-Rite-Temp.

Step 7 - Start pump. Open ball valve of discharge hose B of

the Clean-in-Place.

Step 8 - Slowly open the ball valve on return hose A and

watch for foaming in the tank.

Step 9 - Clean-in-Place is now circulating cleaning solution

through the Flo-Rite-Temp. Periodically check the solution

to see if it has changed color or quit fizzing. If the cleaning

Flo-Rite-Temp

* RITE-QWIK is a non hazardous chemical cleaner which has been proven effective for removing deposits without

harming the FLO-RITE-TEMP internally.

Air

solution has stopped fizzing and has not changed color, the Flo-

Rite-Temp is clean. You may save the remaining unspent solution

for your next job. If the solution quits fizzing and the color has

changed, add new cleaning solution. Continue circulating in the

same manner as above. Do not exceed a maximum

circulation time of (3) three hours.

Step 10 - Shut-off pump. Close discharge hose valve B on

Clean-in-Place. Open air (valve #9). Turn air on slowly to

approximately 5 psi. Increase as Clean-in-Place fluid returns to

tank. (Maximum air pressure 25 psi.)

Step 11 - Leave air blow for approximately 3-5 minutes. This

should return most of the fluid to the tank. Close both hose

valves.

Step 12 - Disconnect return hose A from the Flo-Rite-Temp outlet

cleaning connection #7 and discharge hose B from the inlet

cleaning connection #8. Also remove the pop-off valve or pipe

plug #6 from the lower diaphragm cover of the control valve. Let

the cleaning solution drain by gravity from the Flo-Rite-Temp.

Step 13 - Close valve #2 going into the system and open valve

#3 going to the drain.

Step 14 - Open the water outlet valve #5 then open SLOWLY

inlet water valve #4. Let the water run for (1) one minute before

installing the pop-off valve or pipe plug #6 into the lower

diaphragm cover of the control valve.

Step 15 - After the pop-off valve or pipe plug #6 is installed, run

water into the drain for (5) five minutes to flush out all of the

cleaning solution. Throttle the outlet valve #3 open and closed to

purge the air from under the diaphragm.

Step 16 - After flushing the unit, close valve #3 and open the

steam supply valve #1 SLOWLY and let the Flo-Rite-Temp heat

up.

Step 17 - Set the Flo-Rite-Temp as needed. (This step may not

be necessary).

Step 18 - Open valve #2 to the system and monitor the system

until the temperature is back to normal.

Step 19 - After use, flush the pump with water to remove the

chemical to prevent seal deterioration.

Clean-In-Place

Return

Hose

Discharge

Hose

35"

(889 mm)

Air Vent

47"

(1194 mm)

Drain