Fisher Scientific Isotemp Basic -86C - Clean Condenser; Clean Water-cooled Condenser

4-2 Isotemp Basic Fisher Scientific
Section 4
Maintenance
1. Open the front lower door by grasping the bottom left corner. See
Figure 4-1.
2. Using a vacuum cleaner and being very careful not to damage the
condenser fins, clean the condenser.
Depending upon environmental conditions, the condenser may need to be
cleaned more frequently.
The water-cooled condenser can be cleaned-in-place by using the CIP
procedure. Cleaning solutions can be used, depending on type of deposits
or build-up to be removed.
Caution Do not use liquids that are corrosive to stainless steel or the
brazing material (copper or nickel).
s
CIP (Clean-In-Place) Procedure
1. Disconnect the unit from the water supply.
2. Drain the unit.
3. Rinse with fresh water and drain the unit again.
4. Fill with fresh water.
5. Add cleaning agent (solution and concentration dependent on deposits
or build-up).
6. Circulate cleaning solution (if feasible).
7. Drain the cleaning solution.
8. Add and circulate a passivating liquid for corrosion inhibition of plate
surfaces.
9. Drain this liquid.
10. Rinse with fresh water and drain.
11. Reconnect the water supply and fill the unit.
12. Return to service.
Clean Water-cooled
Condenser
Clean the Condenser
(minimum yearly)