Carrier 50HC07 Manuals

Manuals and User Guides for Carrier 50HC07. We have 1 Carrier 50HC07 manual available for free PDF download: Service And Maintenance Instructions

Carrier 50HC07 Service And Maintenance Instructions (125 pages)

Single Package Rooftop Electric Cooling Unit with Puron R-410A Refrigerant 3 to 12.5 Nominal Tons Sizes 04-14

Brand: Carrier | Category: Air Conditioner | Size: 13.08 MB

Table of Contents
1
Safety Considerations
1
Unit Arrangement and Access
2
- Seasonal Maintenance
  3
- Air Conditioning
  3
- Economizer or Outside Air Damper
  3
- Routine Maintenance
  3
- Supply Fan (Direct- -Drive)
  4
- ECM Motor
  4
- Evaluating Motor Speed
  4
Supply Fan (Blower) Section
4
With Variable Frequency Drive (Vfd)
7
- Replacing the Motor
  8
- Replacing Belt Driven Motor
  8
Additional Variable Frequency Drive (Vfd) Installation and Troubleshooting
8
Motor
8
Cooling
12
Thermostatic Expansion Valve (Txv)
14
- Puronr (R- - 410A) Refrigerant
  15
- Refrigerant Charge
  15
- No Charge
  15
- Low-Charge Cooling
  15
- Coremax Access Port Assembly
  16
- Seat
  16
- Core
  16
Cooling Charging Charts
17
- Replacing Compressor
  21
- Compressor Rotation
  21
- Lubrication
  21
Compressor
21
- Filter Drier
  22
- Condenser-Fan Adjustment
  22
- Troubleshooting Cooling System
  22
- Cooling Troubleshooting
  23
- Convenience Outlet Location
  24
- Weatherproof Cover Installation
  24
Convenience Outlets
24
- Controller Assembly
  25
- Powered Convenience Outlet Wiring
  25
Smoke Detectors
25
Sensor and Controller Tests
29
- Changing the Dirt Sensor Test
  30
- Remote Test/Reset Station Dirty Sensor Test
  30
- Remote Station Test
  30
- Dirty Sensor Test Procedure
  30
- Detector Cleaning
  31
- Alarm State
  31
- Indicators
  31
- Normal State
  31
- Controller’s Trouble LED Is Flashing
  32
- Sensor’s Trouble LED Is on
  32
- Controller’s Trouble LED Is on
  32
Protective Devices
32
- Relief Device
  33
- Detector Indicators
  33
Premierlink Control
33
Rtu- -Open Control System
33
Sensory/Accessory Installation
34
Additional Rtu- -Open Installation and Troubleshooting
34
- RTU-Open Control Module
  35
- Economizer Systems
  36
- Outdoor Air Temperature (OAT) Sensor
  38
- Supply Air Temperature (SAT) Sensor
  38
- Outdoor Air Lockout Sensor
  38
- Differential Dry Bulb Control
  39
- Outdoor Dry Bulb Changeover
  39
- Outdoor Enthalpy Changeover
  40
- Differential Enthalpy Control
  40
- Enthalpy Changeover Setpoints
  40
- Damper Movement
  41
- Minimum Position Control
  41
- Indoor Air Quality (IAQ) Sensor Input
  41
- Exhaust Setpoint Adjustment
  41
- Thermostats
  42
- Occupancy Control
  42
- Demand Control Ventilation (DCV)
  42
- CO2 Sensor Configuration
  42
- DCV (Demand Controlled Ventilation) and Power Exhaust
  43
- To Check DCV and Power Exhaust
  43
- Single Enthalpy
  43
- Differential Enthalpy
  43
- Air Sensor Input
  44
Pre- -Start- -Up/Start- -Up
44
- Unit Preparation
  45
- Additional Installation/Inspection
  45
- Compressor Mounting
  45
Start- -Up, General
45
Start- -Up, Premierlink Controls
46
Start- -Up, Rtu- -Open Controls
46
Fastener Torque Values
47
- Model Number Nomenclature
  48
- Appendix I. Model Number Significance 48.
  49
Appendix II. Physical Data
49
Appendix III. Fan Performance
52
Speed/Torque Motor
67
Appendix IV Wiring Diagrams
71
- 50HC*A05/06 Outdoor Circuiting
  121
- 50HC*A07 Outdoor Circuiting
  121
- 50HC*A04 Outdoor Circuiting
  121
Appendix V. Motormaster Sensor Locations
121
Unit Start-Up Checklist
124

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Carrier 50HC07 Service And Maintenance Instructions (125 pages)

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