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MENU
PARAMETER
INSTALL
UNITS DEG
EQUIPMENT
AUX2 I
FAN TYPE
FAN CFM
SYSTEM SETUP
AUX OUT
OCC
FACTORY DEFAULT
MA LO SET
FREEZE POS
CO2 ZERO
CO2 SPAN
STG3 DLY
SD DMPR POS
DCVCAL ENA
MAT T CAL
ADVANCED
SETUP
OA T CAL
OA H CAL
RA T CAL
RA H CAL
DA T CAL
2SP FAN DELAY
Table 7 — W7220 Menu Structure* (cont)
PARAMETER
PARAMETER
DEFAULT
RANGE AND
VALUE
INCREMENT
01/01/10
N/A
°F
°F or °C
CONV
Conventional or HP
W
W required for 2-
speed mode
2 speed
2 speed required
5000cfm
100 to 15000 cfm;
increment by 100
NONE
NONE
EXH2
SYS
INPUT
INPUT or ALWAYS
NO
NO or YES
45°F
35 to 55°F
(7°C)
(2 to 12°C);
Incremented by 1°
CLO
CLO or MIN
0ppm
0 to 500 ppm;
Increment by 10
2000ppm
1000 to 3000 ppm;
Increment by 50
2.0h
0 min, 5 min, 15 min,
then 15 min intervals.
Up to 4 hrs or OFF
CLO
CLO or OPN
MAN
MAN (manual)
0.0°F (or C)
±2.5°F (±1.4°C)
1.0°F (or C)
±2.5°F (±1.4°C)
0% RH
±10% RH
2.0°F (or C)
±2.5°F (±1.4°C)
0% RH
±10% RH
0.0°F (or C)
±2.5°F (±1.4°C)
5 Minutes
0 to 20 minutes in 1
minute increments
50
†
Display order = MM/DD/YY
Setting order = DD, MM, then YY
Sets economizer controller in degrees Fahrenheit or Celsius
CONV = conventional;
HP O/B = Enable Heat Pump mode. Not available with 2-speed.
See Note 4.
W = Informs controller that system is in heating mode.
SD = Enables configuration of shutdown (not available on 2-speed).
See Note 4.
Sets the economizer controller for operation of 1 speed or 2 speed sin-
door fan system. See Note 4.
UNIT DESIGN AIRFLOW (CFM)
Enter only if using DCVAL ENA = AUTO
The value is found Project Submittal documents for the specific unit.
Select OUTPUT for AUX1 O relay
• NONE = not configured (output is not used)
• EXH2 = second damper position relay closure for second exhaust fan
• SYS = use output as an alarm signal
OCCUPIED MODE BY EXTERNAL SIGNAL
When using a setback thermostat with occupancy out (24 vac), the 24 vac
is input to the OCC terminal. RTU control circuit provides 24-Vac to OCC
through OCCUPIED terminals on Integrated Staging Control Board.
Resets all set points to factory defaults when set to YES. LCD will briefly
flash YES and change to NO but all parameters will change to the factory
default values.
NOTE: RECHECK AUX2 IN and FANTYPE for required 2-speed values.
SUPPLY AIR TEMPERATURE LOW LIMIT
Temperature to achieve Freeze Protection (close damper and alarm if
temperature falls below setup value).
FREEZE PROTECTION DAMPER POSITION
Damper position when freeze protection is active.
CLO = closed
MIN = MIN POS or VENT MAX
CO
ppm level to match CO
2
2
CO
ppm span to match CO
2
2
COOLING STAGE 3 DELAY
Delay after stage 2 cool has been active. Turns on second stage of cool-
ing when economizer is first stage and mechanical cooling is second
stage.
Function not available with 2-speed mode.
Turns on the DCV automatic control of the dampers. Resets ventilation.
SUPPLY AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration supply air tem-
perature (SAT) sensor.
OUTSIDE AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration outside aire tem-
perature (OAT) sensor.
OUTSIDE AIR HUMIDITY CALIBRATION
Allows for operator to adjust for an out of calibration enthalpy sensor.
RETURN AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration return air tem-
perature (RAT) sensor.
RETURN AIR HUMIDITY CALIBRATION
Allows for operator to adjust for an out of calibration return air enthalpy
sensor.
DISCHARGE AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration discharge air
(DAT) temperature sensor.
TIME DELAY ON 2nd STAGE ECONOMIZING
When in economizing mode, this is the delay between thermostat Y2
call and Y1-O output to mechanical cooling stage, to allow high speed fan
operation to attempt to cool space first.
NOTES
sensor start level.
sensor.
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