STT 110 / STT 160

8.4. Connection of Return Air Cooler (Optional)

F

A return air cooler must be employed if the return air temperature is higher than +65 °C (149°F).

You can connect the return air cooler to a coolant circuit or to the water mains network.

The water flow rate in the water mains network* is for:

STT 110. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . approx. 0.35 m3/h (12.46 cf/h) STT 160 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . approx. 0.48 m3/h (17.05 cf/h)

(*water temperature: +6 °C) (42.8°F) Rate your coolant circuit accordingly.

Connect the coolant in- and outlets to the return air cooler.

Observe the flowing direction of the coolant.

Check the tightness of the connections.

SM2-605

Connection of the return air cooler

STT 110 / STT 160

Assembly instructions 8-4

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Sterling STT 160 manual STT 110 / STT Connection of Return Air Cooler Optional