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3.
Verify communications have begun between the MAG Panel and the absorption chiller unit
controller.
Note:
There are two ways to verify communications between the MAG and the absorption unit
controller. (1) two LEDs on the unit controller display processor cycle on and off or (2) the amber
LED on the MAG controller stays on for 1 second and goes off for 1 second if communications
exists (see Table 4, “Amber Status LED Indication
”
, in the “Component Data” section of this
manual).
If communications does not exist between the MAG and absorption chiller controller, check the
following:
§
Check the CIC wiring
§
Check the field wiring to the MAG Panel or connection to port A if an AMP connector was
used.
§
Check to see if the MAG Panel and the absorption chiller unit controller are energized.
