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General| Brand | Carrier |
|---|---|
| Model | 48FC 08-16 Series |
| Category | Air Conditioner |
| Language | English |
Warning regarding system pressure and electrical components.
Warning about handling refrigerants and pressure testing.
Warning about electrical hazards and lockout/tagout.
Shows general unit arrangement and access locations.
Items for monthly/quarterly checks and seasonal maintenance.
Instructions for accessing and replacing disposable filters.
Maintenance for permanent aluminum-mesh screens.
Details about EcoBlue™ direct drive vane axial fan system.
Instructions for setting fan speed via UCB.
Fan speed controls located on the Unit Control Board (UCB).
Keypad interface for accessing control information and testing.
Manual for further installation and troubleshooting info.
Steps to troubleshoot ECM motor issues.
Procedure for disassembling the fan assembly.
Steps to take apart the fan assembly.
Steps to take apart the fan assembly.
Procedure for reassembling the fan assembly.
Procedure for reassembling the fan assembly.
Steps for installing the fan assembly back into the unit.
Routine maintenance and cleaning procedures.
Use of specific coil cleaner and cleaning steps.
Steps for applying the coil cleaner.
Steps to clean the evaporator coil.
Description of the TXV.
Step-by-step guide for replacing a TXV.
Instructions for checking and adding refrigerant.
Using charts to charge the system for cooling.
How to interpret cooling charging charts.
Chart for charging 7.5 Ton units.
Chart for charging 10 Ton units.
Chart for charging 15 Ton units.
Procedure to check and correct compressor rotation direction.
Steps to adjust fan height and tighten set screws.
Internal protection for compressor.
Sensor location and function.
High pressure switch mounted on discharge line.
Switch protecting against loss of charge.
Temperature switch protecting against coil frosting.
Safety relay protecting the fan motor.
Description of the heat exchanger system and safety switches.
Information on gas types and required pressures.
Inspection of main burners for deterioration or blockage.
Steps to remove and replace the gas train.
Steps to remove the heat exchanger from the unit.
Steps to adjust gas valve pressure settings.
System description for direct spark ignition.
Keypad interface for accessing control information and testing.
Manual for further installation and troubleshooting info.
Factory-installed economizer system with logic control.
Field-installed economizer system with logic control.
Economizer system without a control system.
Information on standard sensors used with the EconoMi$er IV.
Measures outdoor air temperature for free cooling.
Measures supply air temperature for economizer control.
Control mode using outdoor dry bulb temperature.
Control mode using outdoor air enthalpy.
Control mode comparing outdoor and return air enthalpy.
Used for demand controlled ventilation based on CO2 levels.
Using DCV for ventilation requirements.
Procedure to check DCV and power exhaust.
Checking DCV minimum and maximum damper positions.
Expandable economizer control system with W7220 module.
Overview of system components.
The core module providing economizer control functionality.
Provides status, parameters, and testing via LCD and keypad.
Section detailing system inputs.
Details on required and optional sensors like MA, OA, RA.
Wiring sensors using color-coded terminals.
Wiring diagram and notes for the CO2 sensor.
Navigating menus using keypad buttons.
Description of the 2-line LCD and 4-button keypad.
Steps to configure the economizer module for the system.
Displays current operating status parameters.
Configuration parameters for economizer operation.
Options for configuring system parameters.
Advanced configuration options for the economizer.
Procedures for testing system components.
Displays active alarms and error conditions.
Boundaries for economizing based on enthalpy.
How the W7220 controls OA damper based on fan speed.
Safety and procedural warnings for start-up.
Ensuring unit is installed per instructions and codes.
Procedure to determine correct rotation direction.
Steps to start the unit in cooling mode.
Steps to operate the unit in heating mode.
Evaporator fan operates continuously.
Table of torque values for fasteners.
Indicates the cooling capacity in tons.
Details heat options and exchanger types.
Specifies economizer and airflow options.
Fan and motor specifications.
Condenser fan and motor specifications.
Gas heat data for natural gas.
LP gas heat data.
General notes on fan performance data and EPACT regulations.
Fan performance data for 7.5 Ton vertical supply (rpm/bhp).
Fan performance data for 7.5 Ton vertical supply (rpm/vdc).
Fan performance data for 8.5 Ton vertical supply (rpm/bhp).
Fan performance data for 8.5 Ton vertical supply (rpm/vdc).
Fan performance data for 10 Ton vertical supply (rpm/bhp).
Fan performance data for 10 Ton vertical supply (rpm/vdc).
Fan performance data for 12.5 Ton vertical supply (rpm/bhp).
Fan performance data for 12.5 Ton vertical supply (rpm/vdc).
Fan performance data for 15 Ton vertical supply (rpm/bhp).
Fan performance data for 15 Ton vertical supply (rpm/vdc).
Wiring diagrams for standard SCCR units.
Wiring diagrams for high SCCR units.
Wiring diagram for 08-12 units with specific controls.
Power wiring diagram for 08-12 units with specific controls.
Sensor location for 7.5 Ton outdoor units.
Sensor location for 8.5-10 Ton outdoor units.
Sensor location for 15 Ton outdoor units.
Checklist for verifying unit readiness before start-up.
Procedures for initial unit start-up.
Steps to check electrical connections and readings.
Steps to start the Humidi-MiZer system in cooling mode.
Section to record observed pressure and temperature data.
