Adjustments - Blodgett GCX-2-6 Installation & Operation Manual

INSTALLATION AND OPERATION MANUAL, GAS FIRED PRESSURELESS COOKER WITH
DIRECT STEAM KETTLES, MODELS GCX-2-6, GCX-2-10, GCX-2-6-6 AND GCX-2-6-10

7.0 ADJUSTMENTS

At least twice a year have an authorized service person clean and adjust the unit for maximum
performance.
TO CALIBRATE PRESSURE SWITCHES
NOTE: Pressure switches are factory set. Calibration is only required if
pressure switches are replaced or if adjustment is required.
CAUTION: Operating, testing, and servicing should only be
performed by qualified personnel.
Pressure switch range is from 1 to 15 psi.
Adjust all settings to maximum on high signal adjustment screw on pressure switches.
Adjust in the following sequence:
-
High limit pressure switch.
- Override pressure switch.
- Operating pressure switch.
- Turning screw clockwise to increase, counterclockwise to decrease pressure.
- Use relief valve to release pressure from boiler for setting adjustments.
1. HIGH LIMIT PRESSURE SWITCHES
Allow pressure to build until unit shuts off. This should occur at 15 psi. Set the high signal
to switch at 14.5 psi on the gauge and the low signal to 13.0 psi.
2. OVERRIDE PRESSURE SWITCHES
Allow pressure to increase to 13 psi. Set the high signal to switch at 13 psi on the gauge
and the low signal to 11 psi.
3. OPERATING PRESSURE SWITCHES
Set the high signal to switch at 11 psi on the gauge and the low signal to 9 psi.
PART NUMBER 10122R1 29 2003-10-09