30
Table 11 — W7220 Menu Structure*
MENU
PARAMETER
PARAMETER
DEFAULT
VALUE
PARAMETER
RANGE AND
INCREMENT
†
EXPANDED PARAMETER NAME
Notes
STATUS
ECON AVAIL
NO
YES/NO
FIRST STAGE COOLING DEMAND (Y1–IN)
YES = economizing available; the system can use outside air for
free cooling when required
ECONOMIZING
NO
YES/NO
FIRST STAGE COOLING RELAY OUTPUT
YES = outside air being used for first stage cooling
OCCUPIED
NO
YES/NO
OCCUPIED
YES = OCC signal received from space thermostat or unitary
controller
YES = 24 vac on terminal OCC
NO = 0 vac on terminal OCC
HEAT PUMP
N/A**
COOL
HEAT
HEAT PUMP MODE
Displays COOL or HEAT when system is set to heat pump
(Non-conventional)
COOL Y1—IN
OFF
ON/OFF
FIRST STAGE COOLING DEMAND (Y1-IN)
Y1–I signal from space thermostat or unitary controller for cooling
stage 1.
ON = 24 vac on terminal Y1–I
OFF = 0 vac on terminal Y1–I
COOL Y1—OUT
OFF
ON/OFF
FIRST STAGE COOLING RELAY OUTPUT
Cool stage 1 Relay Output to stage 1 mechanical cooling
(Y1–OUT terminal)
COOL Y2—IN
OFF
ON/OFF
SECOND STAGE COOLING DEMAND (Y2–IN)
Y2–I signal from space thermostat or unitary controller for
second stage cooling.
ON = 24 vac on terminal Y2–I
OFF = 0 vac on terminal Y2–I
COOL Y2—OUT
OFF
ON/OFF
SECOND STAGE COOLING RELAY OUTPUT
Cool Stage 2 Relay Output to mechanical cooling
(Y2–OUT terminal)
MA TEMP
_ _ . _ °F
(or _ _ . _ °C)
–40°F to 150°F
(–40°C to 66°C)
SUPPLY AIR TEMPERATURE, Cooling Mode
Displays value of measured mixed air from MAT sensor.
Displays _ _ . _ F if not connected, short or out of range.
DA TEMP
_ _ . _ °F
(or _ _ . _ °C)
–40°F to 150°F
(–40°C to 66°C)
DISCHARGE AIR TEMPERATURE, after Heating section
Displays when Discharge Air Sylk Bus sensor is connected and
displays measured discharge temperature.
Displays _ _ . _F if sensor sends invalid value, if not connected,
short or out of range.
OA TEMP
_ _ . _ °F
(or _ _ . _ °C)
–40°F to 140°F
(–40°C to 60°C)
OUTSIDE AIR TEMP
Displays measured value of outdoor air temperature.
Displays _ _ . _F if sensor sends invalid value, short or out of
range.
OA HUM
_ _ %
0 to 100%
OUTSIDE AIR RELATIVE HUMIDITY
Displays measured value of outdoor humidity from OA Sylk Bus
sensor.
Displays _ _% if not connected short, or out of range.
RA TEMP
_ _ . _ °F
(or _ _ . _ °C)
0°F to 140°F
(–18°C to 60°C)
RETURN AIR TEMPERATURE
Displays measured value of return air temperature from RAT
Sylk Bus sensor.
Displays _ _ . _ F if sensor sends invalid value, if not connected,
short or out of range
RA HUM
_ _ %
0 to 100%
RETURN AIR RELATIVE HUMIDITY
Displays measured value of return air humidity from RA Sylk Bus
sensor.
Displays _ _% if sensor sends invalid value, if not connected,
short or out of range
IN CO2
_ _ _ ppm
0 to 2000 ppm
SPACE/RETURN AIR CO
2
Displays value of measured CO
2
from CO
2
sensor. Invalid if not
connected, short or out of range. May be adjusted in Advanced
menu by Zero offset and Span.
DCV STATUS
N/A
ON/OFF
DEMAND CONTROLLED VENTILATION STATUS
Displays ON if above set point and OFF if below set point, and
ONLY if a CO
2
sensor is connected.
DAMPER OUT
2.0v
2.0 to 10.0v
Displays voltage output to the damper actuator.***
ACT POS
N/A
0 to 100%
Displays actual position of actuator
ACT COUNT
N/A
1 to 65,535
Displays number of times actuator has cycled.
1 cycle equals 180 degrees of actuator movement in any
direction.
ACTUATOR
N/A
OK/Alarm (on
Alarm menu)
Displays ERROR if voltage or torque is below actuator range.
EXH1 OUT
OFF
ON/OFF
EXHAUST STAGE 1 RELAY OUTPUT
Displays ON when damper position reaches programmed
percentage set point.
Output of EXH1 terminal:
ON = relay closed
OFF = relay open
