Carrier 48PMC24 Manuals

Manuals and User Guides for Carrier 48PMC24. We have 1 Carrier 48PMC24 manual available for free PDF download: Operation And Service Manual

Carrier 48PMC24 Operation And Service Manual (189 pages)

Single Package Rooftop Units With COMFORTLink Controls Version 5.x and PURON (R-410A) Refrigerant

Brand: Carrier | Category: Air Conditioner | Size: 9.71 MB

Table of Contents
1
Safety Considerations
2
General
3
Basic Control Usage
3
Start-Up
6
Controls Quick Set−Up
8
Service Test
12
- Independent Outputs
  12
- Fan Test
  12
- Cooling Test
  12
- Humidi−Mizert Test
  12
- Heating Test
  13
- Dehumidification Control
  13
- Remote Occupancy
  13
- Alarm Output
  13
Third Party Control
13
- Cooling/Heating Control
  13
- Fire Shutdown
  13
Controls Operation
14
- Economizer Monitoring
  14
- Economizer Damper Control
  14
- Unit Configuration
  14
- Display Configuration
  14
- Modes
  15
- HVAC Operation Disabled (HV.DN)
  16
- General Operation
  16
- Temperature Setpoint Determination
  16
- Timed Override in Effect (T.OVR)
  16
- Occupancy Determination
  17
  - Level 1 Priority
    17
  - Level 2 Priority
    17
- Indoor Fan Operation
  17
- Cooling Operation
  18
- Heating Operation
  21
- Economizer
  23
- Optional Humidi−Mizert Dehumidification System
  24
- Indoor Air Quality (IAQ)
  30
  - IAQ (Analog Input)
    30
  - Air Baffle Dimensions
    31
  - IAQ (Switch Input)
    33
  - Outdoor Air Quality (Analog Input)
    33
  - IAQ Control
    33
  - Fan Enable (Analog IAQ Sensor)
    34
  - Fan Enable (Switch Input)
    34
- Energyx
  34
- Adaptive Fan
  34
  - Fan Speed − Reheat2 (FS.RH)
    35
  - Fan Speed − Heating (FS.HT)
    35
- Temperature Compensated Start
  35
- Temperature Compensated Start Logic
  35
- Carrier Comfort Network (CCN)R Configuration
  35
- Demand Limit
  36
- Linkage
  36
- Alarm Handling
  37
Troubleshooting
37
Major System Components
55
Service
82
- Condensate Drain Pan (48/50PG03−14 Units)
  83
- Routine Cleaning of Round−Tube Coil Surfaces
  83
- Condensate Drain Pan (48/50PM16−28 Units)
  84
- Filters
  84
- Lubrication
  84
- Evaporator Fan Service and Replacement
  85
- Evaporator−Fan Motor Adjustment
  85
- Evaporator Fan Belt Tension Adjustment
  86
- Condenser-Fan Adjustment
  87
- Economizer Operation During Power Failure
  87
- Evacuation
  87
- NOVATION Heat Exchanger Condenser Service and Replacement
  87
- Verify Sensor Performance
  87
  - Low Charge Cooling
    88
  - No Charge
    88
- Refrigerant Charge
  88
- Main Burners (48PG and 48PM)
  92
  - Natural Gas
    92
  - Propane Gas
    92
- Control Circuit, 24−V
  93
- Diagnostic Leds
  93
- Energyx
  93
- Filter Drier
  93
- Protective Devices
  93
- Relief Devices
  93
- Replacement Parts
  93
Appendix A - Local Display and Ccn Tables
94
- Mode — Time Clock
  108
- Mode — Operating Modes
  109
- Single-Circuit Units
  112
- Dual Circuit Units
  112
APPENDIX B − CONTROL MODES with Humidi−Mizert SYSTEM and ECONOMIZER
112
Appendix C - Start−Up Data
113
Appendix D - Additional Start−Up Data
169
Mode — Configuration
180
Control Set Point and Configuration Log
180
Indicate Unit Settings below
180
Pre-Start-Up
188
Unit Start-Up Checklist
188

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Carrier 48PMC24 Operation And Service Manual (189 pages)

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