Thermo NESLAB HX 150, Руководство по обслуживанию

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Flushing closed facility system (continued)
4. Open valves on cooling water supply and return lines.
5. Run HX normally for 10-15 minutes. Adjust setpoint so HX
cycles between heat and cool. The condenser flow is now
reversed. This reverse flow will tend to loosen any deposits.
Cooling performance may be less, and the water regulating
valve may make some vibration noise.
6. Turn HX off.
7. Close valves on cooling water supply and return lines.
8. Restore hoses to original configuration.
9. Open valves on cooling water supply and return lines.
Flushing using a tap water system
1. Turn HX off.
2. Close valve on cooling water supply line.
3. Disconnect hoses from cooling water supply and drain, and
reverse them.