MODEL 6504 CONTROL PANEL LED DESCRIPTION

LED lights on the side of the control panel indicate when the components of your Intelligent Zoned Comfort Control system are operating:

LED

COLOR

STATUS

THIS MEANS…

 

 

 

 

POWER

GREEN

BLINKING

Blinks once per second when 24 VAC

Power Applied – this is normal

 

 

 

 

 

 

 

 

 

OFF

Zone 1 Damper Open

ZONE 1

RED

 

 

ON

Zone 1 Damper Closed

 

 

 

 

 

 

 

 

OFF

Zone 2 Damper Open

ZONE 2

RED

 

 

ON

Zone 2 Damper Closed

 

 

 

 

 

 

 

 

OFF

Zone 3 Damper Open

ZONE 3

RED

 

 

ON

Zone 3 Damper Closed

 

 

 

 

 

 

 

 

OFF

Zone 4 Damper Open

ZONE 4

RED

 

 

ON

Zone 4 Damper Closed

 

 

 

 

 

 

 

 

ON

System Blower Operating

FAN ON

RED

 

 

OFF

System Blower OFF

 

 

 

 

 

 

 

 

ON

ERV or Ventilation Control Operating

VENT

RED

 

 

OFF

ERV or Ventilation Control OFF

 

 

 

 

 

 

 

 

ON

Electronic Air Cleaner Operating

EAC

RED

 

 

OFF

Electronic Air Cleaner OFF

 

 

 

 

 

 

 

 

ON

Humidifier Operating

HUM.

RED

 

 

OFF

Humidifier OFF

 

 

 

 

 

 

 

 

ON

Heating Equipment Operating

HEAT

RED

 

 

OFF

Heating Equipment OFF

 

 

 

 

 

 

 

 

ON

Cooling Equipment Operating

COOL

RED

 

 

OFF

Cooling Equipment OFF

 

 

 

 

 

 

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Aprilaire owner manual Model 6504 Control Panel LED Description, LED Color Status This MEANS…