Bühler technologies ModbusRTU TC-MIDI, Installation And Operation Instruction Manual, Page: 33 / 55

TC-MIDI (+)
6 Maintenance
The basic version of the cooler does not require maintenance.
However, it may have different options depending on the cooler model. In this case the following maintenance must be per-
formed regularly:
– Option peristaltic pump: Checking hoses (see chapter Replacing the hoses of the peristaltic pump (option) [> page 35])
– Filter option: Checking the filter element (see chapter Replacing the filter element (option) [> page 36])
– Option moisture detector: Calibrating the moisture detector (see chapter Calibration of the moisture detector (option) [>
page 36])
– Option sample gas pump: Checking valves for contamination. After 500 operating hours retighten the screws for the mount-
ing ring to 3 Nm. (see chapter Replacing sample gas pump inlet and outlet valves (optional) [> page 37])
During maintenance, remember:
– The equipment must be maintained by a professional familiar with the safety requirements and risks.
– Only perform maintenance work described in these operating and installation instructions.
– Observe the respective safety regulations and operating specifications when performing any type of maintenance.
– Always use genuine spare parts.
DANGER Electrical voltage
Electrocution hazard.
a) Disconnect the device from power supply.
b) Make sure that the equipment cannot be reconnected to mains unintentionally.
c) The device must be opened by trained staff only.
d) Regard correct mains voltage.
DANGER Toxic, corrosive gas/condensate
Sample gas/condensate may be hazardous to health.
a) If necessary, ensure a safe gas/condensate discharge.
b) Always disconnect the gas supply when performing maintenance or repairs.
c) Protect yourself from toxic/corrosive gasses/condensate when performing mainten-
ance. Wear appropriate protective equipment.
CAUTION Health hazard if the heat exchanger leaks
The heat exchanger is charged with glycol-based coolant.
In the event of a heat exchanger leak:
a) Avoid contact with the skin and eyes.
b) In the event of a leak, do not restart the cooler under any circumstances The cooler
must be repaired by the manufacturer.
31 Bühler Technologies GmbH BE440016 ◦ 07/2022