Sterlco Royal Series Compact Temperature Control Unit - Manual (Page 43)

Royal Series Water Temperature Control Units Page 43
!
CAUTION
HAZARDOUS ELECTRICAL CURRENT PRESENT.
Maintain a safe ground and disconnect the power
supply before servicing the unit.
Make sure a qualified electrician makes electrical
connections; disconnect/lock out electricity using
OSHA 20CFR 1910.147 standards when servicing the
unit.
To adjust the pressure switch:
Using a small, flat-blade screwdriver, carefully remove the
plug at the top of the switch.
Figure 9
Pressure Switch
Side View and Top View
Under the plug is a Phillips-head adjusting screw:
Turn the screw counterclockwise to reduce the pressure.
- or -
Turn the screw clockwise to increase the pressure.
A quarter turn (90º rotation) approximates 15 psi (103.4 kPa/
1.0 bars).
Replace the plug on the top of the switch.
If the plug gets damaged, the switch is still sealed internally.
Phillips head screw