34
Specifications subject to change without notice.
516 01 3604 04
ADVANCED
SETUP
(cont)
OA H CAL
0% RH
±10% RH
OUTSIDE AIR HUMIDITY CALIBRATION
Allows for operator to adjust for an out of calibration humidity sensor.
RA T CAL
0.0°F
±2.5°F
RETURN AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration temperature
sensor.
RA H CAL
0% RH
±10% RH
RETURN AIR HUMIDITY CALIBRATION
Allows for operator to adjust for an out of calibration humidity sensor.
DA T CAL
0.0°F
±2.5°F
DISCHARGE AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration temperature
sensor.
2SP FAN DELAY
5 Minutes
0 to 20 minutes in
1 minute
increments
TIME DELAY ON SECOND STAGE ECONOMIZING
When in economizing mode this is the delay for the high speed fan to
try to satisfy the call for second stage cooling before the first stage
mechanical cooling is enabled.
CHECKOUT
DAMPER MINIMUM
POSITION
N/A
N/A
The checkout for the damper minimum position is based on the
system.
DAMPER OPEN
N/A
N/A
Position damper to the full open position.
Exhaust fan contacts enable during the DAMPER OPEN test. Make
sure you pause in the mode to allow exhaust contacts to energize
due to the delay in the system.
DAMPER CLOSE
N/A
N/A
Positions damper to the fully closed position
CONNECT Y1–O
N/A
N/A
Closes the Y1-O relay (Y1-O)
CONNECT Y2–O
N/A
N/A
Closes the Y2-O relay (Y2-O)
CONNECT AUX1-O
N/A
N/A
Energizes the AUX output. If Aux setting is:
• NONE — not action taken
• ERV — 24 Vac out. Turns on or signals an ERV that the conditions
are not good for economizing but are for ERV operation.
††
• SYS — 24 Vac out. Issues a system alarm
CONNECT EXH1
N/A
N/A
Closes the power exhaust fan 2 relay (EXH1)
ALARMS
Alarms display only when they are active. The menu title “ALARMS(#)” includes the number of active alarms in parenthesis ( ). When
using SYLK bus sensors, “SYLK” will appear on the screen, and when using 20k OA temperature sensors, “SENS T” will appear on
the screen
MA T SENS ERR
N/A
N/A
SUPPLY AIR TEMPERATURE SENSOR ERROR
Mixed air sensor has failed or become disconnected - check wiring
then replace sensor if the alarm continues.
CO2 SENS ERR
N/A
N/A
CO
2
SENSOR ERROR
CO
2
sensor has failed, gone out of range or become disconnected -
check wiring then replace sensor if the alarm continues.
OA SYLK T ERR
N/A
N/A
OUTSIDE AIR S-BUS SENSOR ERROR
Outdoor air enthalpy sensor has failed or become disconnected -
check wiring then replace sensor if the alarm continues.
OA SYLK H ERR
N/A
N/A
RA SYLK T ERR
N/A
N/A
RETURN AIR S-BUS SENSOR ERROR
Return air enthalpy sensor has failed or become disconnected -
check wiring then replace sensor if the alarm continues.
RA SYLK H ERR
N/A
N/A
DA SYLK T ERR
N/A
N/A
DISCHARGE AIR S-BUS SENSOR ERROR
Discharge air sensor has failed or become disconnected - check
wiring then replace sensor if the alarm continues.
OA SENS T ERR
N/A
N/A
OUTSIDE AIR TEMPERATURE SENSOR ERROR
Outdoor air temperature sensor has failed or become disconnected -
check wiring then replace if the alarm continues.
ACT ERROR
N/A
N/A
ACTUATOR ERROR
Actuator has failed or become disconnected - check for stall, over
voltage, under voltage and actuator count. Replace actuator if
damper is movable and supply voltage is between 21.6 V and 26.4 V.
Check actuator count on STATUS menu.
FREEZE ALARM
N/A
N/A
Check if outdoor temperature is below the LOW Temp Lockout on
setpoint menu. Check if Mixed air temperature on STATUS menu is
below the Lo Setpoint on Advanced menu. When conditions are back
in normal range then the alarm will go away.
SHUTDOWN ACTIVE
N/A
N/A
AUX2 IN is programmed for SHUTDOWN and 24 V has been applied
to AUX2 IN terminal.
DMP CAL RUNNING
N/A
N/A
DAMPER CALIBRATION ROUTINE RUNNING
If DCV Auto enable has been programmed, when the W7220 is
completing a calibration on the dampers, this alarm will display. Wait
until the calibration is completed and the alarm will go away. Must
have OA, MA and RA sensors for DCV calibration; set up in the
Advanced setup menu.
DA SENS ALM
N/A
N/A
DISCHARGE AIR TEMPERATURE SENSOR ALARM
Discharge air temperature is out of the range set in the ADVANCED
SETUP Menu. Check the temperature of the discharge air.
Table 12 —
Menu Structure* (cont)
MENU
PARAMETER
PARAMETER
DEFAULT
VALUE
PARAMETER
RANGE AND
INCREMENT
†
NOTES
