Unit Control Board Option Setup; Option Byte Setup; Unit Control Board - York SUNLINE MagnaDRY DR240 Installation Manual

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FIGURE 30 - UNIT CONTROL BOARD

UNIT CONTROL BOARD OPTION SETUP

OPTION BYTE SETUP

• Enter the Option Setup mode by pushing the
OPTION SETUP / STORE button, and holding it for
at least 2 seconds.
• The green status LED (Option Byte) will be turned
on and the red status LED (Heat Delay) is turned
off.
• The 8, 4, 2 and 1 LEDs will then show the status of
the 4 labeled options ((8) Fan Off at Heat Start, (4)
Low Ambient Lockout, (2) Free Cooling Lock-
out, and (1) Lead / Lag).
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• Press the UP or Down button to change the LED
status to correspond to the desired Option Setup.
• To save the current displayed value, push the
OPTION SETUP / STORE button and hold it for at
least 2 seconds. When the value is saved, the
green LED will flash a few times and then normal
display will resume.
NOTE: While in either Setup mode, if no buttons are
pushed for 60 seconds, the display will revert
to its normal display, exiting the Option Setup
mode. When saving, the control board only
saves the parameters for the currently dis-
played mode (Option Byte or Heat Delay).
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