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one additional Differential Setting visible/adjustable for each
additional Bank of (3) heating elements.
OPERATING SEQUENCE
With an Operating Set Point of 120°F and all Differential
settings at 2°F the On/Off sequencing of heating element
Banks would be as follows:
DIFFERENTIAL
BANK NUMBER
SETTING
Bank 1
2°F
Bank 2
2°F
Bank 3
2°F
TANK TEMPERATURE
Non adjustable information display. Current water temperature
as sensed by the control system from the immersion
Temperature Probe.
From the Desktop Screen, press the Operational Button underneath
"MENU" to enter the Main Menu.
Notice how the text above the Operational Buttons on the display
changes as you navigate through the various menus and screens.
With Temperatures selected (highlight in black) in the Main Menu,
press the Operational Button underneath "SELECT" to enter the
Temperatures Menu.
If Temperatures is not selected use the Up and Down buttons to
select this menu item.
With the Operating Set Point selected in the Temperatures Menu,
press the Operational Button underneath "CHANGE" to activate the
adjustment mode for this menu item.
Press the Up and Down buttons to adjust the Operating Set Point
to the desired setting.
Press the Operational Button underneath "UPDATE" to confirm the
new setting. Press the Operational Button underneath "CANCEL"
to discard the new setting and retain the previous setting.
The new Operating Set Point value should now be displayed as
the current value.
NOTE: Use this same procedure to adjust the Differential settings
and the Tank Probe Offset in the Temperatures Menu.
This same procedure is used to change user settings in other control
system menus.
TURN ON
TURN OFF
TEMP
TEMP
118°F
120°F
116°F
118°F
114°F
116°F
ACTION
TANK PROBE OFFSET
User adjustable setting -5°F to +5°F range; factory default
is 0°F. If the current Tank Temperature is sensed (from the
immersion Temperature Probe) at 120°F and the offset is
adjusted to -5°F the control system would calibrate or "offset"
the Tank Temperature to 115°F. Heating cycles would then start/
stop based on the calibrated Tank Temperature.
Used to calibrate for slight differences in control system
temperature sensing. This can improve the precision of
temperature control in the storage tank and at points of use.
This feature can also be used to compensate for building
recirculation loops (hot water returning to the storage tank)
that may cause the heating cycle to terminate prematurely.
TEMPERATURE SETTINGS
The Operating Set Point and the Differential Settings are
adjusted in the Temperatures Menu. The following instructions
explain how to adjust these user settings and navigate the
control system menus.
27
DISPLAY
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