Section V Maintenance & Troubleshooting; Service Contracts; Cleaning; Rust - Thermo Scientific ULT-80 Installation & Operation Manual

Section V Maintenance & Troubleshooting

Service Contracts

Service Contracts are designed to provide extended life and minimal down-
time for your circulator. For more information, contact our Service Depart-
ment.

Cleaning

Periodically inspect the reservoir. If cleaning is necessary, flush the reservoir
with a cleaning fluid compatible with both the circulating system (if applicable)
and the cooling fluid. Do not use steel wool; its too abrasive and will lead
to rusting. Dry the bath using a soft cloth.
Also, cooling fluid should be replaced periodically when operating at low
temperatures. Moisture concentration in cooling fluid will increase with time
leading to a build up of ice on the cooling coil.
Raise the temperature of the bath to deice the cooling coil. Shut the circulator
off, and replace the cooling fluid.
Periodic vacuuming of the condenser fins is necessary. The frequency of
cleaning depends on the operating environment. We recommend a
monthly visual inspection of the condenser after initial installation.
After several months, the frequency of cleaning will be established.

Rust

Stainless steel will rust if not properly used and maintained. Any damage,
such as scratching or pitting, can cause rusting. The stainless steel parts
exposed to bath fluids should be thoroughly cleaned periodically.

Checklist

Circulator Will Not Start
Check High Temperature/Low Level cutout (see Section IV, High
Temp/Low Level Cutout).
Check all circuit breakers.
Check power source for correct voltage output.
Check line cord wiring (see Section III, Electrical Requirements).
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