Zoning Panel LED’s
The 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.
3
Continue: Seven Built-in Timers
timers This occurs after any initial power up or
power failure. Press the
Reset
button for 1
second to override.
Short Cycle Timer -
When all zone demands
are satisfied, the panel will not resume the same
mode of operation for a minimum of 3 minutes.
Changeover Timer -
Prevents the system from
rapidly switching between heating and cooling
modes. At the end of a call, a 4 minute timer is
started and the panel will not switch to the
opposing mode until the timer has expired.
Opposing Call Delay -
A 20 minute delay must
expire, or the active zone(s) must satisfy, before
the panel will honor a demand to changeover to
the opposite mode of system operation.
Staging Timer/OAS -
The STAGING TIMER
sets the amount of continuous call time in 1st
stage, before second stage heat or cool is
energized.
NOTE:
The potentiometer also
serves as the
Outside Air Changeover Setting.
Purge Delay -
The STAGING TIMER sets the
amount of continuous call time in 1st stage,
before second stage heat or cool is energized.
NOTE:
The potentiometer also serves as the
Outside Air Changeover Setting
The STATUS LED pulses as a steady
heart beat to indicate proper Micro-
processor 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: Indicates that
damper(s) is energized open, and the
Zone is active.
The ZONE 2 LED: Indicates that
damper(s) is energized open, and the
Zone is active.
The ZONE 1 LED: Indicates that
damper(s) is energized open, and the
Zone is active.
STATUS
GREEN
ZONE 1
GREEN
ZONE 2
GREEN
ZONE 3
GREEN
SAS
RED
OAS
RED
The FAN LED: Indicates a demand for
fan operation, during COOLING,
HEATING, PURGE, or CONTINUOUS
FAN operations.
The Y2 LED: Indicates the 2nd stage of
DX COOLING or DX HEATING is
energized.
The Y1 LED: Indicates the 1ST stage of
DX COOLING or DX HEATING is
energized.
The W1/B LED: Indicates that the 1st
stage of HEATING is energized in
Gas/Hydronic mode. The W1/B LED
also
‘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: Indicates 2nd or 3rd
stage of HEATING is energized in
GAS/HYDRONIC or HEAT PUMP
mode. The W2/E LED also
EMERGENCY HEAT is energized
in HEAT PUMP mode.
illuminates when
illuminates
when
W1/B
RED
FAN
GREEN
Y1
YELLOW
Y2
YELLOW
W2/E
RED
052917
Pre-Release 052917
