30
ADVANCED
SETUP (cont)
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. See Table 8.
DAMPER OPEN
N/A
N/A
Position damper to the full open position.
Exhaust fan contacts enable during the DAMPER OPEN test.
Make sure to 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 — no 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 1 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
set point menu. Check if Mixed air temperature on STATUS
menu is below the Lo Set point on Advanced menu. When
conditions are back in normal range, 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, this alarm will display
when the W7220 is completing a calibration on the dampers.
Wait until the calibration is completed and the alarm will go away.
Must have OA, MA and RA sensors for DCV calibration; set up is
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.
SYS ALARM
N/A
N/A
When AUX1-O is set to SYS and there is any alarm (e.g., failed
sensors, etc.), the AUX1-O terminal has 24 vac out.
Table 7 — W7220 Menu Structure* (cont)
MENU
PARAMETER
PARAMETER
DEFAULT
VALUE
PARAMETER
RANGE AND
INCREMENT
†
EXPANDED PARAMETER NAME
Notes
Содержание 50KC04
Страница 4: ...4 Fig 2 Unit Dimensional Drawing of Units Built On and After 4 15 19...
Страница 5: ...5 Fig 3 Unit Dimensional Drawing of Units Built on and Prior to 4 15 19...
Страница 6: ...6 Fig 4 Unit Corner Weights and Clearances...
Страница 7: ...7 Fig 5 Base Rail Details...
Страница 8: ...8 Fig 6 Thru the Base Charts...
Страница 35: ...35 Fig 49 Electro Mechanical Control Wiring Diagram...
Страница 36: ...36 Fig 50 Electro Mechanical Control Wiring Diagram with Humidi MiZer System...
Страница 37: ...37 Fig 51 Electro Mechanical Power Wiring...
Страница 38: ...38 Fig 52 PremierLink Wiring Schematic...
Страница 39: ...39 Fig 53 PremierLink Wiring Schematic with Humidi MiZer System...
Страница 40: ...40 Fig 54 RTU Open System Control Wiring Diagram...
Страница 41: ...41 Fig 55 RTU Open System Control Wiring Diagram with Humidi MiZer System...
Страница 47: ...47 Fig 63 TXV Metering Device Position in Reheat Coil Typical Diagram for Sizes 04 06 TXV...
Страница 48: ......
Страница 49: ......
