Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480166-01
Printed in U.S.A.
Form 48/50A-13T
Pg 200
2-18
Replaces: 48/50A-12T
© Carrier Corporation 2018
INDEX
Airflow control during
Alarm output
Belt tension adjustment
Building pressure configuration
Building pressure control
Carrier Comfort Network
®
Comfort
Compressor run hours display table
Compressor starts display table
Condenser-fan adjustment
5, 27-77
21-23
Controls setpoint and configuration
log
CL-1 to CL-5
Conventions used in this manual
Crankcase heaters
Demand controlled ventilation control
Discrete switch logic configuration
Display configuration
Economizer integration with
Economizer operation
Factory-installed components
Fire shutdown mode
Four-inch filter replacement
134
Gas valve adjustment (48A only)
Humidi-MiZer
23,71
HVAC modes
Low ambient Motormaster control
Main burners
Major system components
Mode selection
Multi-stage constant volume units with
mechanical thermostat
Multi-stage constant volume units
Programming operating schedules
Remote switch
Safety considerations
2, 3
Software version numbers
display table
Start-up
Static pressure reset
Supply fan status monitoring logic
Temperature compensated start logic
Thermostatic expansion valve (TXV)
Time clock configuration
Transducer troubleshooting
Unit Configuration submenu
Unit staging tables
Unit start-up checklist
CL-6
Unoccupied economizer free cooling
Variable air volume units using return
air sensor or space temperature
sensor
Summary of Contents for Carrier Weathermaker 48A2
Page 105: ...105 Fig 20 Typical Main Control Box Wiring Schematic 48 50A2 A3 A4 A5 Units...
Page 106: ...106 Fig 21 Typical Auxiliary Control Box Wiring Schematic...
Page 107: ...107 Fig 22 Typical 2 Stage Gas Heat Wiring Schematic Size 060 Units Shown a48 8357...
Page 108: ...108 TO NEXT PAGE Fig 23 Typical Staged Gas Heat Wiring Schematic Size 060 Units Shown A48 7296...
Page 109: ...109 Fig 23 Typical Staged Gas Heat Wiring Schematic Size 060 Units Shown cont A48 8358...
Page 110: ...110 Fig 24 Typical Electric Heat Control Schematic 50 Series Size 060 Units Shown a50 8228...
Page 111: ...111 Fig 25 Typical Power Schematic 48 50A2 A3 A4 A5 060 Unit Shown...
Page 112: ...112 Fig 26 Typical Low Ambient Controls Option Wiring...
Page 113: ...113 Fig 27 Typical Small Chassis Component Location Size 020 035 Units...
Page 114: ...114 Fig 28 Typical Large Chassis Component Locations Size 040 060 Units...
Page 118: ...118 Fig 30 Economizer Control Board ECB1 and VAV Control Board ECB2 A48 7706...
Page 142: ...142 A48 3733 Fig 56 Main Burner Removal...
Page 176: ...176 APPENDIX C VFD INFORMATION cont Fig F Internal Enclosure Fan Replacement A48 7716...
