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6. If using the EDC (Evaporator Defrost Control), it will be necessary to add a 24VAC relay with Normally
Closed contacts to change the action of the EDC from N.C. to N.O. for connection to the Symbio 700 in the
condenser. Make wiring changes indicated below.
a. Add a field wire from LTB2-CD to one side of the coil of the field supplied 24VAC relay (R).
b. Add field wire between other side of relay coil and LTB2-B1.
c. Connect normally closed relay contact to Symbio Condenser (UC) J16-1 & 2
d. In Edit Configuration set Demand Management to Demand Limit and in Settings, Refrigeration
set Cooling Demand Limit Capacity Enable Setpoint to 0%
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