Temptek G-500 Series, Instruction Manual

Page: 42 / 64

Temperature Control Unit : VTO Series with G500 Series Instrument
Page: 42
TEMPTEK, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-6352 Fax: 317-881-1277
Email: service@Temptek.com
5.1 PREVENTIVE MAINTENANCE
A. The following is a general guide to preventive maintenance. The frequency of
maintenance will vary with each application, installation conditions, flow rates, hours of
use and operating temperatures.
B. Preventive maintenance:
1. Tighten all wiring connections.
2. Check plumbing. Repair any leaks. The factory recommends using a high
temperature graphite paste and teflon tape on all plumbing connections.
3. Descale water cooling channels in the pump seal cooling adapter.
4. Descale water cooling channels in the heat exchanger (if installed).
5. Check process fluid for degradation. The operating conditions affects the usable
life of the process fluid. Most heat transfer fluid manufacturers have an analysis
program where a sample of process fluid can be sent to the manufacturer to
determine when the fluid should be replaced. Some manufacturers even have
reclamation programs of the spent fluid.
6. Check sight glass for proper operation. Due to oil degradation, the sight glass
feeder tubes may become clogged. In such cases, the sight glass may show
an inaccurate level. Follow proper shut down procedures before removing sight
glass to check feeder tubes.
7. Tighten heater contactor terminals.