BMPlus 3000
LED’s
The BMPlus is equipped with 11 function specific LED’s that indicate HVAC system operation
and zone damper status. Familiarize yourself with the LED functions and definitions, in order to
accurately determine the Zoned HVAC system status and mode of operation.
STATUS
GREEN
SAS
RED
OAS
RED
FAN
ZONE 3
ZONE 2
ZONE 1
The STATUS LED pulses as a steady heart beat to indicate proper Microprocessor system status.
The OAS LED illuminates solid to indicate that the Outdoor Temperature has fallen below the chosen
set point. The OAS LED will blink rapidly to indicate a shorted or open Outdoor Air Sensor circuit.
The SAS LED illuminates solid to indicate that the Supply Temperature has exceeded the chosen
set point on either the HIGH TEMP LIMIT or the LOW TEMP LIMIT. The SAS LED will blink rapidly
to indicate a shorted or open Supply Air Sensor circuit.
The ZONE 3 LED will illuminate solid to indicate that damper(s) is energized open, and the Zone is active.
The ZONE 2 LED will illuminate solid to indicate that damper(s) is energized open, and the Zone is active.
The ZONE 1 LED will illuminate solid to indicate that damper(s) is energized open, and the Zone is active.
The FAN LED will illuminate solid to indicate a demand for fan operation, during COOLING, HEATING,
PURGE, or CONTINUOUS FAN operations.
Y1
Y2
W1/B
RED
W2/E
RED
The Y2 LED illuminates solid to indicate the 2nd stage of DX COOLING or DX HEATING is energized.
The Y1 LED illuminates solid to indicate the 1ST stage of DX COOLING or DX HEATING is energized.
The W1/B LED illuminates solid to indicate 1st stage of HEATING is energized in Gas/Hydronic mode.
The W1/B LED illuminates solid to indicate ‘B’ reversing valve is energized in HEAT PUMP operation.
NOTE: In Heat Pump Operation, this LED will stay illuminated after the call for heat is completed.
The W2/E LED illuminates solid to indicate 2nd or 3rd stage of HEATING is energized in GAS/HYDRONIC
or HEAT PUMP mode.
The W2/E LED illuminates solid to indicate EMERGENCY HEAT is energized in HEAT PUMP mode.
NOTES:
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- [email protected]
10
LED’S
GREEN
GREEN
GREEN
GREEN
GREEN
GREEN
GREEN
YELLOW
YELLOW
GREEN
GREEN
