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98
Table 64 —
Switch Logic Configuration
Display Configuration
The
DISP
submenu is used to configure the local display set
-
tings. A list is shown in Table 65.
Test Display LEDs (TEST)
This is used to test the operation of the
Comfort
Link display.
Metric Display (METR)
This variable is used to change the display from English units
to Metric units.
Language Selection (LANG)
This variable is used to change the language of the
Com
-
fort
Link display. At this time, only English is available.
Password Enable (PAS.E)
This variable enables or disables the use of a password. The pass
-
word is used to restrict use of the control to change configurations.
Service Password (PASS)
This variable is the 4-digit numeric password that is required if
enabled.
VFD Configurations
There are 2 submenus under the Configuration menu,
Configu
-
ration
IAQ
S.VFD
and
Configuration
IAQ
E.VFD
.
These configurations are for the supply fan or optional exhaust
fan variable frequency drives (VFDs). These submenus contain
the configurations required for the supply fan and exhaust fan
VFDs. This section defines the configurations in these sub
-
menus. See Tables 66 and 67. Further information on VFD
configurations can be found in Appendix D.
SUPPLY FAN VFD CONFIGURATION
The submenu that contains these configurations is located at
the local display under
Configuration
IAQ
S.VFD
.
VFD1 Nominal Motor Volts (N.VLT)
This configuration defines the nominal motor voltage. This val
-
ue must equal the value on the motor rating plate. This value sets
the maximum drive output voltage supplied to the motor.
NOTE: The VFD cannot supply the motor with a greater volt
-
age than the voltage supplied to the input of the VFD. Power to
the VFD must be cycled in order for a change to this configura
-
tion to take effect.
VFD1 Nominal Motor Amps (N.AMP)
This configuration defines the nominal motor current. This val
-
ue must equal the value defined in the Supply Fan Motor Lim
-
itations Table 21. Power to the VFD must be cycled in order
for a change to this configuration to take effect.
VFD1 Nominal Motor Freq (N.FRQ)
This configuration defines the nominal motor frequency. This
value must equal the value on the motor rating plate. This val
-
ue sets the frequency at which the output voltage equals the
Nominal Motor Volts (
N.VLT
). Power to the VFD must be cy
-
cled in order for a change to this configuration to take effect.
VFD1 Nominal Motor RPM (N.RPM)
This configuration defines the nominal motor speed. This val
-
ue must equal the value on the motor rating plate. Power to the
VFD must be cycled in order for a change to this configuration
to take effect.
VFD1 Nominal Motor HPwr (N.PWR)
This configuration defines the nominal motor power. This val
-
ue must equal the value of the combined HP of both motors.
Motor HP is found on the motor rating plate. Power to the VFD
must be cycled in order for a change to this configuration to
take effect.
VFD1 Motor Direction (M.DIR)
This configuration sets the direction of motor rotation. Motor
direction change occurs immediately upon a change to this
configuration. Power to the VFD need NOT be cycled for a
change to this configuration to take effect.
VFD1 Acceleration Time (ACCL)
This configuration sets the acceleration time from zero to max
-
imum output frequency. Power to the VFD must be cycled in
order for a change to this configuration to take effect.
VFD1 Deceleration Time (DECL)
This configuration sets the deceleration time from maximum
output frequency to zero. Power to the VFD must be cycled in
order for a change to this configuration to take effect.
VFD1 Switching Frequency (SW.FQ)
This configuration sets the switching frequency for the drive.
Power to the VFD must be cycled in order for a change to this
configuration to take effect.
ITEM
EXPANSION
RANGE
CCN POINT
DEFAULT
SW.LG
SWITCH LOGIC: NO / NC
PWS.L
Power Fault Input - Good
Open/Close
PWRFLOGC
Close
MFT.L
Filter Status Input - Clean
Open/Close
FLTSLOGC
Open
PFT.L
Post Filter Stat. In-Clean
Open/Close
PFLTSLGC
Open
IGC.L
IGC Feedback - Off
Open/Close
GASFANLG
Open
RMI.L
RemSw Off-Unoc-Strt-NoOv
Open/Close
RMTINLOG
Open
ENT.L
Enthalpy Input - Low
Open/Close
ENTHLOGC
Close
SFS.L
Fan Status Sw. - Off
Open/Close
SFSLOGIC
Open
DL1.L
Dmd.Lmt.Sw.1 - Off
Open/Close
DMD_SW1L
Open
DL2.L
Dmd.Lmt.Sw.2 - Off
Open/Close
DMD_SW2L
Open
IAQ.L
IAQ Disc.Input - Low
Open/Close
IAQINLOG
Open
FSD.L
Fire Shutdown - Off
Open/Close
FSDLOGIC
Open
PRS.L
Pressurization Sw. - Off
Open/Close
PRESLOGC
Open
EVC.L
Evacuation Sw. - Off
Open/Close
EVACLOGC
Open
PRG.L
Smoke Purge Sw. - Off
Open/Close
PURGLOGC
Open
DH.LG
Dehumidify Sw. - Off
Open/Close
DHDISCLG
Open
SFB.L
SF Bypass Sw. - Off
Open/Close
SFBYLOGC
Open
PEB.L
PE Bypass Sw. - Off
Open/Close
PEBYLOGC
Open
Summary of Contents for WeatherExpert 48N2
Page 135: ...135 Fig 18 48 50N Typical Power Schematic Nominal 075 Ton Unit Shown ...
Page 136: ...136 Fig 19 48 50N Typical Power Schematic Nominal Ton 90 150 Units Shown ...
Page 137: ...137 Fig 20 48 50N Main Base Board Input Output Connections ...
Page 138: ...138 Fig 21 48 50N RXB EXB CEM Input Output Connections a48 9307 ...
Page 139: ...139 Fig 22 48 50N EXV SCB Input Output Connections a48 9308 ...
Page 140: ...140 Fig 23 48N Typical Modulating Gas Heat Unit Control Wiring ...
Page 141: ...141 Fig 24 50N Typical Electric Heat Unit Control Wiring ...
Page 144: ...144 Fig 27 48N Typical Gas Heat Section Wiring Nominal Ton 120 to 150 Units ...
Page 145: ...145 Fig 28 48 50N Typical Power Component Control Wiring 460 v ...
Page 146: ...146 Fig 29 48 50N Component Control Wiring 575 v Nominal Ton 075 to 150 Units ...
Page 147: ...147 Fig 30 48 50N Component Arrangement Power Box ...
Page 148: ...148 Fig 31 48 50N Component Arrangement Control Box ...
Page 240: ...240 APPENDIX D VFD INFORMATION CONT Fig G VFD Bypass Wiring Diagram WHEN USED ...