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Table 7 — W7220 Menu Structure
a
MENU
PARAMETER
PARAMETER
DEFAULT
VALUE
PARAMETER
RANGE AND
INCREMENT
b
NOTES
STATUS
ECONO 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 1 stage cooling
OCCUPIED
c
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 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
SECOND STAGE COOLING RELAY OUTPUT
Cool Stage 2 Relay Output to mechanical cooling
(Y2–OUT terminal).
MA TEMP
d
_ _ . _ F
0°F to 140°F
(–17°C to 60°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
0°F to 140°F
(–17°C to 60°C)
DISCHARGE AIR TEMPERATURE, after Heating section
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°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 sensor.
Displays _ _% if not connected short, or out-of-range.
RA TEMP
_ _ . _ F
0°F to 140°F
(–17°C to 60°C)
RETURN AIR TEMPERATURE
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%
RETURN AIR RELATIVE HUMIDITY
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
SPACE/RETURN AIR CO
2
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
DEMAND CONTROLLED VENTILATION STATUS
Displays ON if above setpoint and OFF if below setpoint, 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 outdoor air damper actuator.
ACT COUNT
N/A
1 to 65535
Displays number of times actuator has cycled.
1 cycles equals 180 deg. 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
Output of EXH1 terminal:
ON = relay closed
OFF = relay open
EXH2 OUT
OFF
ON/OFF
EXHAUST STAGE 2 RELAY OUTPUT
Output of AUX terminal; displays only if AUX = EXH2
ERV
OFF
ON/OFF
ENERGY RECOVERY VENTILATOR
Output of AUX terminal; displays only if AUX = ERV
Summary of Contents for WeatherMaker 50FC-16 Series
Page 4: ...4 Fig 2 50FC 16 Unit Dimensional Drawing ...
Page 5: ...5 Fig 2 50FC 16 Unit Dimensional Drawing cont ...
Page 8: ...8 Fig 5 50FC 16 Roof Curb Details ...
Page 21: ...21 Fig 42 Typical Control Wiring Diagram Electro Mechanical with W7220 Controller ...
Page 22: ...22 Fig 43 Typical Control Wiring Diagram SystemVu Controller ...
Page 23: ...23 Fig 44 Typical Power Wiring Diagram 208 230 460 3 60 Unit Shown ...
Page 24: ...24 Fig 45 Typical Power Wiring Diagram 575 3 60 Unit Shown ...
Page 41: ......