Operating instructions

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:
CTT40.............................................. approx. 0.2 m
3
/h (7.16cf/h),
CTT70............................................. approx. 0.4 m
3
/h (14.13 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 (Ø pipe connection: 12 mm / 0.5 in.).
Observe the flowing direction of the coolant.
Check the tightness of the connections.
64.10-0214GB10 04/02
CTT 40 / CTT 70
Assembly instructions 8-4
D
D
CTT 40 CTT 70
B
A
Connection of Return Air Cooler CTT 40 (A) / CTT 70 (B)