FLK Gas Sampling System - MPIP - Free

SQ254 Heat Exchanger
3.3.4 Maximum limit value emergency extraction of probe
The set point of excess temperature is adjusted to 220 °C ex works. As soon as this temperature is reached, the
probe moves out of the furnace.
3.4 Standard starting
Check level of liquid “Level cold” through the inspection glass, if necessary, refill. Check by visual inspection the
tightness of the entire equipment. Turn-on main switc. In case level of cooling liquid has dropped below “Level
cold”, the equipment cannot be set into operation. This malfunction is indicated by the signal lamp H7 “Level min”.
After having refilled liquid, the equipment can be set into operation.
4. Setting out of operation
4.1 Shutdown the heat exchanger
The gas sample probe has to be retracted from the kiln. Keep the heat exchanger in operation for a short time in
order to avoid an accumulation of heat. In case of repair work, switch off the main switch.
5. Maintenance
Weekly:
Check all flanges and hoses on tightness.
If required, tighten screws or replace gaskets.
Check axial seal of pump on tightness.
If required, replace the seal.
Check coolant flow and clean the dirt trap, if necessary.
Monthly:
Check contamination of cooling fins.
In case of severe contaminations, use compressed air for cleaning.
Note: Contamination increases the run-time of the cooling fan.
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