Alfa Laval Contherm 6X11, Instruction Manual

Page: 100 / 124

9 Troubleshooting
9.1 Introduction
Introduction
This chapter describes how to safely troubleshoot the Contherm™ Scraped Surface Heat Exchanger (SSHE) and its related
equipment. The troubleshooting information is provided as a series of easy-to-follow tables, with each table addressing a
specific topic or area. The information provided in this chapter reflects both the knowledge acquired by Alfa Laval Inc.’s
engineers as well as customers experience with the Contherm™.
If you experience a problem with the Contherm™, first determine if it is described in one of the following tables. If it is identified,
perform the remedy described for resolving the problem. If it is not identified and you cannot decide how to remedy it, contact
your local Alfa Laval Inc. representative.
Before performing any trouble shooting task described in this Chapter, please review the safety precautions provided in Chapter
One, Safety Summary.
Table 9-1 shows how the troubleshooting information in this chapter is organized.
Table 9-1. Contherm™ Troubleshooting Information
Sec-
tion
Category Applicable Table(s)
9.2 - Seal Leaks
- Product Seals.
- Flush Seals (Flushing media entering
atmosphere).
Table 9-2. Product Seal Leaks
Table 9-3. Flush Seal Leaks
9.3 - Lower Bearing
- Lower bearing wearing out prematurely.
Table 9-4. Lower Bearing
9.4 - Rotor Lift System
- System not operating smoothly in either
direction.
- System will lower but will not return.
- Oil seeping from bottom of lift cylinder,
around piston rod.
- Oil leaking around cap at top of cylinder.
Table 9-5. Rotor Lift System
9.5 - Product Heating
- Product not heated to specified
temperature.
- Product burning onto cylinder wall.
Table 9-6. Product Not Heated to Specified
Temperature
Table 9-7. Product Burning onto Cylinder Wall
9.6 - Product Cooling (Water/Glycol/Brine)
- Product not cooling to specified
temperature.
Table 9-8. Product Not Cooling to Specified
Temperature
9.7 - Product Cooling (Ammonia/Freon)
- Product not cooling to specified
temperature.
- System Freezes Up.
Table 9-9. Product Not Cooling to Specified Temperature
Table 9-10. System Freezes Up
WARNING Read this manual before using or working on the Contherm™.
Do not assemble, disassemble, clean, operate or maintain the
Contherm™ until you have read the manual and are thoroughly
familiar and knowledgeable with all safety precautions and the
equipment.
100