Trane CCEB, Installation Operation & Maintenance

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Supply and installation of thermostat
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thermostat trigger temperature: 70°C
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thermostat probe position: approx. 100 mm downstream of airflow through steam heat
exchanger / approx. 100mm below of top panel
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integration of thermostat in AHU control system in a way that immediately after triggering
steam supply to heat exchanger is interrupted
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function: interruption of steam supply at overtemperature for example because of missing
airflow
6.1.3 Plate heat exchangers for refrigeration circuits
Refrigeration circuits of ETA-POOL-Units may contain a plate heat exchanger as optional. Connect
it to pool water or water for domestic use according to blue arrows of
Figure 102:
- Bottom inlet
- Top outlet
Figure 102: Plate heat exchangers for
refrigeration circuits
Application of plastic water tubes is not allowed because refrigerant - and there-
fore also plate heat exchanger - may reach temperatures of 110°C or higher!
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Never install the chloration in front of the water inlet of the plate heat exchanger. The chloration
schould be as far away from the plate heat exchanger as possible (see
Figure 103 ).
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The water inlet should be close to the surface and the outlet near to the bottom. This improves
the mixing of the heated water and mainly prevents the entrance of chlorine particles or con-
centrated solution into the plate heat exchanger (see
Figure 103 ).
Warning: Unfortunately, in practice the chlorination is often located in front of the
plate heat exchanger inlet. This improves the chlorination, but it is potentially
harmful to the plate heat exchanger.