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OMM-0153_E
• 5/11/2023 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 49 of 124
CENTURION Installation, Operation & Maintenance Manual
SECTION 5: INITIAL START-UP
5.4.3 Changing The Readout Between Fahrenheit and Celsius
1. Press and hold both the
Increase
and
Decrease
arrows
at the same time for about 4
seconds. The display shows the temperature in Celsius and
°F
changes to
°C
.
2. To change the display back to Fahrenheit, repeat step 1.
Figure 5-11: Changing the Display to Celsius
5.5 Temperature Control Calibration
W A R N I N G !
Ignoring this commissioning step may cause water temperature faults, poor water
temperature control, and rapid cycling of the unit.
The unit normally comes factory set and calibrated for a 130°F (54.4°C) setpoint (default value).
However, if a different setpoint temperature is desired, use the procedure in the next section.
Temperature control calibration should be performed each time the setpoint is changed.
There are two primary adjustments for performing temperature calibration:
Min Load Adj
and
Max Load Adj
(minimum and maximum load adjustment). Adjustments to these settings are
made at minimum and maximum load conditions and should be made in small increments, from
1 to 3 degrees F (0.55 to 1.65 degrees C). After adjustment the outlet water temperature must
be allowed to settle for several minutes prior to making any further adjustments.
Temperature control calibration is accomplished by first performing the procedure in Section
5.5.2
Minimum Load Adjustment
. Once complete, perform the procedure in Section 5.5.3
Maximum Load Adjustment
.
5.5.1 Setting Outlet Water Temperature Setpoint
If the setpoint is already set to the correct values for the site skip this step and proceed to 5.5.2.
Setting Outlet Temperature Setpoint
– WHM Manager Units:
1. On the WHM Manager unit go to
Advanced Setup
→
WHM Cascade
→
Application
Configuration
.
2. Set the
Setpoint
parameter to the desired setpoint.
INCREASE
DECREASE