American Standard 4A6V8024A1000B, Service Facts

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14 4A-V8-SF-1G-EN
Integrated Variable Speed Control Board
LED Indicators
SHED
CDA
STATUS
COMM
T3
L LE ED D’’S S
LED RATE
DESCRIP-
TION
INDICA-
TION
STATUS
(GREEN)
SLOW
1 TIME PER
SECOND STANDBY/
IDLE
MEDIUM
2 TIMES PER
SECOND CALL FOR
CAPACITY
FAST
5 TIMES PER
SECOND POWER UP
DELAY
SOLID ON TEST MODE
INTERMITTENT
1 FLASH
EVERY 4
SECONDS
HARD
LOCKOUT
LED RATE DESCRIPTION INDICATION
COMM
(AMBER)
SLOW
1 TIME PER
DEVICE
DEVICE COUNT
FAST
5 TIME PER
SECOND LOSS OF
COMMUNICATION
Sump Heat Control
Sump Heat Control Guidelines
Sump Heat ON
At power up; when outdoor temperature is below 85° F
When outdoor temperature is below 80° F and compressor dome temperature is less than the outdoor ambient temperature
Sump Heat
OFF
When the outdoor temperature goes above 85° F (Sump Heat remains OFF until outdoor temperature drops below 80° F)
Anytime the compressor is running
For 50 minutes after each compressor run cycle.
Note: Variable Speed systems are designed so that the compressor and sump heat will not run at the same time. Compressor windings are
used for sump heat. When sump heat is active, line-side current will be approximately 1.5 amps. The CDA MONITOR MENU has a field for
DRIVE >> DRIVE AMPS which can also be used to verify operation of sump heat.