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21
IMPORTANT
: The default setting on the W7220 controller is for a “Fan Type” with 2 speeds, which is correct for 2 or 3
speed units.
IMPORTANT
: Table 6 illustrates the complete hierarchy. Your menu parameters may be be different depending on your
computer configuration.
Table 7 – Menu Structure
a
Menu
Parameter
Parameter
Default
Value
Parameter range
and
Increment
b
Notes
Status
ECON AVAIL
NO
YES/NO
YES = economizing available; the system can use outside air for free cooling
when required
ECONOMIZING
NO
YES/NO
YES = outside air being used for 1st stage cooling
OCCUPIED
NO
YES/NO
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
Displays COOL or HEAT when system is set to heat pump (Non- conventional)
COOL Y1- IN
OFF
ON/OFF
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
Cool stage 1 Relay Output to stage 1 mechanical cooling (Y1- OUT terminal)
COOL Y2- IN
OFF
ON/OFF
Y2- I signal from space thermostat our 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
Cool Stage 2 Relay Output to mechanical cooling (Y2- OUT terminal)
MA TEMP
__._° F
0 to 140° F
Displays value of measured mixed air from MAT sensor. Displays _ _ . _ ° F if not
connected, short or out- of- range
DA TEMP
__._° F
0 to 140° F
Displays when Discharge Air 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
- 40 to 140° F
Displays measured value of outdoor air temperature. Displays _ _ _° F if sensor
sends invalid value, short or out- of- range
OA HUM
__%
0 to 100%
Displays measured value of outdoor humidity from OA sensor
Displays _ _% if not connected short, or out- of- range
RA TEMP
__._° F
0 to 140° F
Displays measured value of return air temperature from RAT sensor
Displays _ _ . _° F if sensor sends invalid value, if not connected, short or out-
of- range
RA HUM
__%
0 to 100%
Displays measured value of return air humidity from RA sensor
Displays _ _% if sensor sends invalid value, if not connected, short or
out- of- range
IN CO2
___ppm
0 to 2000 ppm
Displays value of measured CO
2
from CO
2
sensor. Invalid if not connected, short
or out- of- range
DCV STATUS
N/A
ON/OFF
Displays ON if above setpoint and OFF if below setpoint, and ONLY if a CO2
sensor is connected
DAMPER OUT
2.0V
2.0 to 10.0V
Displays voltage output to the damper actuator
EXH1 OUT
OFF
ON/OFF
Output of EXH1 terminal: ON = relay closed, OFF = relay open
EXH2 OUT
OFF
ON/OFF
Output of AUX terminal; displays only if AUX = EXH2
ERV
OFF
ON/OFF
Output of AUX terminal; displays only if AUX = ERV
MECH COOL ON
0, 1, or 2
Displays stage of mechanical cooling that is active
40Q
Q
Summary of Contents for 40QQ Series
Page 3: ...3 DIMENSIONS 1 2 3 Fig 2 Dimensional Drawing 40QQ ...
Page 4: ...4 DIMENSIONS CONT Fig 3 Dimensional Drawing 40QQ ...
Page 5: ...5 CENTER OF GRAVITY Fig 4 Center of Gravity Drawing 40QQ ...
Page 11: ...11 Fig 8 Rigging Label 40QQ ...
Page 50: ...50 Table 29 Check Code 2 40QQ ...
Page 51: ...51 Table 30 Check Code 3 40QQ ...
Page 52: ...52 WIRING DIAGRAMS Fig 78 40QQ Power Wiring Diagram 208 230V 60Hz 40QQ ...
Page 53: ...53 WIRING DIAGRAMS CONT Fig 79 40QQ Power Wiring Diagram 460V 60Hz 40QQ ...