Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480165-01
Printed in U.S.A.
Form 48-50N-7T
Pg 256
12-2020
Replaces: 48-50N-6T
© 2020 Carrier
INDEX
Actuators
Adjustments
Airflow control during
Alarm output
4-6
Building pressure control
Carrier Comfort Network
®
(CCN)
Check lists
Pre-Start-Up
CL-1
Start-Up
CL-3
Comfort
Complete unit stoppage
Compressor run hours display table
Compressor starts display table
Configuring the humidifier actuator
Controls
Controls set point and configuration
log
CL-5
Conventions used in this manual
Cool mode diagnostic help
Crankcase heaters
Differential dry bulb control
Discrete switch logic configuration
Display configuration
Economizer changeover select
Economizer integration with
Economizer operation
Economizer/outdoor air damper control
Electronic expansion valve (EXV)
Exhaust fan VFD configuration
Factory-installed components
FDD configurations
Fire-smoke inputs
Forcing inputs and outputs
Gas system adjustment (48N only)
Humidi-MiZer
®
Indoor air quality configurations
Multi-stage constant volume and staged air
volume units with mechanical
Multi-stage constant volume and staged air
volume units with space sensor
Outdoor air cfm control
Programming operating schedules
Remote switch
Safety considerations
2
Service component tests
Service test
29
Set clock on VFD (if installed)
Software version numbers
display table
SUMZ cooling algorithm
Supply fan status monitoring logic
Temperature compensated start logic
Time clock configuration
Two-stage gas and electric heat control
Unit configuration (unit) submenu
Unit start-up checklist
CL-1
Unoccupied economizer free cooling
Variable air volume units using return air
sensor or space temperature sensor
Содержание WeatherExpert 48N2
Страница 135: ...135 Fig 18 48 50N Typical Power Schematic Nominal 075 Ton Unit Shown ...
Страница 136: ...136 Fig 19 48 50N Typical Power Schematic Nominal Ton 90 150 Units Shown ...
Страница 137: ...137 Fig 20 48 50N Main Base Board Input Output Connections ...
Страница 138: ...138 Fig 21 48 50N RXB EXB CEM Input Output Connections a48 9307 ...
Страница 139: ...139 Fig 22 48 50N EXV SCB Input Output Connections a48 9308 ...
Страница 140: ...140 Fig 23 48N Typical Modulating Gas Heat Unit Control Wiring ...
Страница 141: ...141 Fig 24 50N Typical Electric Heat Unit Control Wiring ...
Страница 144: ...144 Fig 27 48N Typical Gas Heat Section Wiring Nominal Ton 120 to 150 Units ...
Страница 145: ...145 Fig 28 48 50N Typical Power Component Control Wiring 460 v ...
Страница 146: ...146 Fig 29 48 50N Component Control Wiring 575 v Nominal Ton 075 to 150 Units ...
Страница 147: ...147 Fig 30 48 50N Component Arrangement Power Box ...
Страница 148: ...148 Fig 31 48 50N Component Arrangement Control Box ...
Страница 168: ...168 Fig 47 Sensor and Ignition Position Fig 48 Combustion Blower Details SENSOR DETAILS IGNITION DETAILS ...
Страница 240: ...240 APPENDIX D VFD INFORMATION CONT Fig G VFD Bypass Wiring Diagram WHEN USED ...