Carrier 50FC M20 Series Manuals

Manuals and User Guides for Carrier 50FC M20 Series. We have 1 Carrier 50FC M20 Series manual available for free PDF download: Service And Maintenance Instructions

Carrier 50FC M20 Series Service And Maintenance Instructions (116 pages)

Single Package Rooftop Electric Cooling Unit with Puron (R-410A) Refrigerant 17.5-27.5 Nominal Tons

Brand: Carrier | Category: Air Handlers | Size: 20.41 MB

Table of Contents
1
Safety Considerations
2
Unit Arrangement and Access
3
General
3
Routine Maintenance
3
Filters
3
Supply Fan (Blower) Section
4
Supply Fan (Direct-Drive)
4
Staged Air Volume
13
Cooling
13
Condenser Coil
13
Condenser Coil Maintenance and Cleaning
13
Recommendation
13
Evaporator Coil
15
Evaporator Coil Metering Devices
15
Thermostatic Expansion Valve (Txv)
15
TXV Operation
15
Replacing TXV
15
Refrigerant System Pressure Access Ports
16
Puron ® (R-410A) Refrigerant
17
Refrigerant Charge
17
Compressor
26
Lubrication
26
Replacing Compressor
26
Compressor Rotation
26
Filter Drier
26
Condenser-Fan Adjustment
26
Troubleshooting Cooling System
27
Convenience Outlets
28
Installing Weatherproof Cover
28
Non-Powered Type
28
Unit-Powered Type
28
Duty Cycle
29
Maintenance
29
Fuse on Powered Type
29
Smoke Detectors
29
System
29
Controller
29
Smoke Detector Sensor
29
Smoke Detector Locations
30
FIOP Smoke Detector Wiring and Response
31
Sensor and Controller Tests
32
Sensor Alarm Test
32
Controller Alarm Test
32
Dirty Controller Test
32
Dirty Controller Test . . . . . . . . . . . . . . . . . . . . . . . . . 32 APPENDIX E - LOW AMBIENT CONTROL SENSOR
33
Dirty Sensor Test
33
Changing the Dirt Sensor Test
33
Remote Station Test
33
SD-TRK4 Remote Alarm Test Procedure
33
Remote Test/Reset Station Dirty Sensor Test
33
Dirty Sensor Test Using an SD-TRK4
34
Detector Cleaning
34
Indicators
34
Troubleshooting
35
Protective Devices
35
Compressor Protection
35
Relief Device
36
Control Circuit, 24-V
36
Electric Heaters
37
Heater Installation (All Units)
37
High Sccr Unit Installation  (65Ka Sccr)
37
High Sccr Unit Installation  (60Ka Sccr)
37
Completing Heater Installation
42
Systemvu Control System
43
Systemvu Interface
43
Additional Systemvu Installation and Troubleshooting
43
Economizer Systems
44
Economi$Er2
45
Economi$Er IV (Field-Installed Accessory)
46
Economi$Er X (Factory-Installed Option)
52
Pre-Start-Up/Start-Up
63
Start-Up, General
64
Unit Preparation
64
Additional Installation/Inspection
64
Return-Air Filters
64
Outdoor-Air Inlet Screens
64
Compressor Mounting
64
Internal Wiring
64
Refrigerant Service Ports
64
Compressor Rotation
64
Cooling
64
Heating
65
Ventilation (Continuous Fan)
65
Fastener Torque Values
65
Start-Up, Systemvu Controls
65
Appendix A - Model Number Nomenclature
66
Appendix B - Physical Data
68
Appendix C - Fan Performance
69
Appendix D - Wiring Diagrams
82
Appendix E - Low Ambient Control Sensor Location
111

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Carrier 50FC M20 Series Manuals

Carrier 50FC M20 Series Service And Maintenance Instructions (116 pages)

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