FIELD REPAIR/SERVICE MICRO-TEMP
®
LT, Model 749
OPERATION AND TECHNICAL MANUAL
Page 35 of 75
U.S.P. Grade Propylene Glycol Per Unit
13. Continue to fill the water reservoir with distilled water.
14. Circulate the water with the Propylene glycol mixed in.
15. If unit is being placed in dry storage, continue with procedure.
16. When all fluid has been removed from the unit, disconnect the drain hose(s) and wipe
unit clean.
17. Unit is now ready for storage. Refer to Section 7 for specifications for storage
conditions.
18. Document unit maintenance.
When you are ready to return unit to service, replenish the reservoir(s) with distilled water.
Perform all the checks as described in the respective Manual.
FLUID CIRCUIT DISINFECTION/DRY STORAGE PROCEDURE
for Circulating Water Units Utilizing CE Approved Maranon H (Product of Ecolab)
(Maranon H Is Not Available In the United States)
The following procedure disinfects the fluid circuit in these products. The required tools/supplies
are appropriate drain hose(s) and/or hose connector(s), Maranon H, distilled water, and the
appropriate AC electrical power.
Procedure:
1. Drain the water from the reservoir as described in Section 4-2.1.
2. Turn unit off (“O” position).
3. Fill the reservoir with the appropriate amount of Maranon H per the below chart.
4. Fill the reservoir with the appropriate amount of water per the above chart.
5. Attach bypass hose to the quick disconnect fittings of the unit.
6. Turn the unit on and circulate per the Chemical Cleaning Circulation Chart (above).
7. Drain the unit as instructed in Step #1.
8. Repeat Steps 3-6 three (3) times.
9. Rinse the unit three (3) times as described in Steps 4-6. Be sure to omit the Maranon
H.
10. After the third rinse, drain the unit and fill the reservoir with distilled water and circulate.
11. Check the water with PH strips or other appropriate test method for Maranon H
detection. If Maranon H is detected, repeat Steps 4-6.
12. If unit is to be returned to service, replenish reservoir(s) with the appropriate volume
of distilled water.
13. If unit is being placed in dry storage, continue with procedure.
14. When all fluid has been removed from the unit, disconnect the drain hose(s) and wipe
unit clean.
15. Unit is now ready for storage. Refer to Section 7 for specifications for storage
conditions.
16. Document unit maintenance.
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