User guide

Page 34 Royal Series Water Temperature Control Units
 Connect the main power to the unit disconnect switch, and
press the START switch to check for proper pump rotation
direction as described in Section 5-6. Pump rotation should be
clockwise, viewed from the motor end.
 Check your work and proceed to the Startup Procedure
section on the following page.
5-3 Starting the Temperature Control Unit
 Turn ON the water supply, turn the rotary disconnect to the ON
position, and push the START button.
 The unit automatically executes a one-minute venting sequence
to expel air trapped in the process piping. Sterling recommends
a longer venting sequence on larger process systems. Press and
hold the VENT button to force the cooling/vent valve open and
eliminate air trapped in the process piping in larger process
systems.
The controller is OFF and the Vent Cycle indicator is lighted
during the vent sequence.
 Set the controller to the process temperature.
 Refer to the enclosed controller manual for details regarding
the auto-tuning process.
 Watch the drain for any bubbles or erratic flow, which
indicates if the system has been properly vented. If the stream
is steady, the unit was properly vented and all air is out of the
system.
 Operate the unit, checking for anything unusual that could
indicate improper operation.
Note: You can stop the Royal Series temperature control unit at
any time by pressing the
STOP button.