(1)
DISP key used to switch the Operation Displays. Press the key in the Menu Display or Parameter Setting Display to
return to the Operation Display.
(2)
PARA key hold down the key for 3 seconds to move to the Operation Parameter Setting display. Hold down the key
and the left arrow key simultaneously for 3 seconds to move to the Setup Parameter Setting Display. Press the DISP
key in the Parameter Setting Display to return to the Menu Display. Press the SET/ENTER key once to cancel the
parameter setting (set point is blinking)
(3)
SET/Enter key press the key in the Menu Display to the Parameter Setting Display of the Menu. Press the key
in the Parameter Setting Mode to change the set point
(4)
Light-loader interface is the communication interface to the adapter cable when setting and storing parameters via PC.
(5)
A/M key used to switch between AUTO and MAN modes.
(6)
Fn user function key defined by user. PID will display when Fn key is pressed.
Parameter set-point adjustments are shown in the figure on the next page and explained in the text that follows.
To adjust the “Boiler On” set point (A1): Press the “Display” key until A1 is shown on the controller. Press the
“Set/Enter” key to adjust (the value will be flashing). Use the directional up and down arrows to change the value.
With a negative setting for A1, the boiler will turn back on under the selected set point. For example, if the set
point is 100 PSIG and the boiler burner is to turn back on at 80 PSIG, A1 would be set to (negative) - 20.
To adjust your “Boiler On” set point, you choose the negative number for how far under the set point you would like
the boiler burner to turn back on. Press the “Set/Enter” key once the desired number is reached to lock in the set
point. The value will now stop flashing to signify that it is set. Press the “Display” key to return to the Set Point (SP)
home screen.
To adjust the “Boiler Off” set point (Hy1): Press the “Display” key until HY1 is shown on the controller. Press
the “Set/Enter” key to adjust (the value will be flashing). Use the directional up and down arrows to change the
value. With a positive setting for Hy1, the boiler will turn off over the selected set point. To adjust your “Boiler Off”
set point, you have to calculate the difference between your “Boiler On” set point value and the “Boiler Off” set
point value. Example: Boiler On at 100 PSIG and Boiler Off at 120 PSIG, the Hy1 setting is to be 20. Use the
directional up and down arrows to change the value. Press the “Set/Enter” key once the desired number is
reached to lock in the set point. The value will now stop flashing to signify that it is set. Press the “Display” key
to return to the Set Point (SP) home screen.
To adjust the PID settings, follow the steps below:
1.
Pressing the “Fn” button will directly bring you to the PID parameters
2.
“P” will be displayed
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