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Appendix l E-2
Installing a Precooler (Optional)
(continued)
7 Connect the water discharge or return line with the pressure relief valve to
the precooler outlet. Use the bracket supplied to secure the pressure relief
valve and discharge line to the back of the dryer.
8 Install the plastic precooler cap over the water connections.
Precooler installed on a D 15, 25,
and 50 dryer without a flow control
Precooler installed on a D 75 and
100 dryer without a flow control
Precooler with a flow control valve
installed on a D 15, 25, and 50 dryer
Precooler with a flow control valve
installed on a D 75 and 100 dryer
Pressure Relief Valve
(Release Pressure 100 psi
[689.5 k Pa])
IMPORTANT: For drying setpoint
temperatures above 150°F
(65.6°C), the precooler must be
bypassed by connecting the dryer
supply hose from the dryer
directly to the hopper inlet.