26
XC20
CAUTION
ELECTROSTATIC DISCHARGE
(ESD)
Precautions and Procedures
Electrostatic discharge can affect electronic components. Take precautions
during unit installation and service to protect the unit's electronic controls.
Precautions will help to avoid control exposure to electrostatic discharge by
putting the unit, the control and the technician at the same electrostatic potential.
Neutralize electrostatic charge by touching hand and all tools on an unpainted
unit surface before performing any service procedure.
STEP 3 -- ELECTRICAL (Continued) -- Outdoor Control Unit
PUSH
BUTTON
7-SEGMENT
DISPLAY
WHEN THE UNIT IS IN PUMP-DOWN MODE, IS SHOWN ON
THE 7-SEGMENT DISPLAY.
TO ACTIVATE PUMP-DOWN MODE, REFER TO PUMP-DOWN
CYCLE SEQUENCE ON PAGE 39.
NOTE - The green LED located on the outdoor control flashes
when communication occurs between the outdoor control and
either the thermostat or the inverter.
Figure 14. Outdoor Unit Control
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