beautypg.com

9 making system purge connections – Sterlco Micro Series Water Temperature Control Unit User Manual

Page 17

background image

MICRO Series Water Temperature Control Units

Page 17

Pressure Relief — ¾”

The pressure relief valve is located at the back of the unit. It is recommended to
run a hose or pipe to the floor. This hosing or piping reduces the chance of
scalding nearby personnel if the relief valve should trip.

3-9 Making System Purge Connections

MICRO Series systems equipped with the System Purge option have a
compressed air inlet marked MOLD PURGE. Connect to a clean, dry 100 psig
(689.50 kPa/6.90 bars) air line. Install your own shut-off valve to prevent process
liquid from backing up into the plant air piping if the compressed air is turned off
and the check valve fails. Don’t depend on the solenoid valve to hold water
pressure in the temperature control unit.

Figure 2

Typical Piping Schematic