GE AZ85E09DAC Technical Service Manual page 17

Energy Management System
The following conditions must exist for the Energy
Management System to operate:
• OCCUPIED dip switch is up.
• Room Air Sensor (kit) is installed.
• Door Sensor (kit) is installed.
• Motion Sensor (kit) is installed.
The Energy Management System uses input from
the Door Sensor (kit) and Motion Sensor (kit) to
establish if the room is occupied or unoccupied.
When the Energy Management System has
established that the room is unoccupied, it
uses input from the Room Air Sensor (kit) and
allows the temperature of the room to lower to
68°F (heat mode) or raise to 78°F (cool mode).
When the room becomes occupied, the Energy
Management System will return to thermostat-
controlled operation and will return the room to the
temperature set on the thermostat.
Door Sensor (kit)
The Door Sensor has a two-wire circuit that is
connected to the main board terminal strip. When
the door opens, the door sensor (switch) closes.
When the Energy Management System sees the
door sensor circuit close (door opened), the Energy
Management System will then check the motion
sensor circuit.
Note: The Energy Management System is
dependent on the Room Air Sensor, Motion Sensor,
and Door Sensor. If the Room Air Sensor, Motion
Sensor, and Door Sensor are not all installed, the
Energy Management System will not operate.
The following conditions must exist
for the energy management system
•
Occupied dip switch is up.
•
Room Air Sensor (kit) installed.
•
Door Sensor (kit) installed.
•
Motion Sensor (kit) installed.
When the door opens, the
unit will check the motion sensor.
to operate:
ROOM AIR SENSOR
MOTION SENSOR
DOOR SWITCH
CDC SWITCH
Schematic shown with unit on, door closed, and
motion sensed.
DOOR OPEN = SENSOR (SWITCH) CLOSED
DOOR CLOSED = SENSOR (SWITCH) OPEN
MAIN BOARD OUTPUT TO DOOR SENSOR = 24 VAC
No motion
detected by
motion sensor.
Motion detected by
motion sensor.
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MAIN
BOARD
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GEA01211
'RRU 6HQVRU
Unit continues to
be controlled by
thermostat.
Unit switches to Room Air
Sensor control. Unit will lower
temperature of room to 68 ˚F
(heat mode) or raise the
temperature of room to 78 ˚F
(cool mode).
(Continued next page)