Carrier WeatherMaster 50HC14 Rooftop Manuals

Manuals and User Guides for Carrier WeatherMaster 50HC14 Rooftop. We have 3 Carrier WeatherMaster 50HC14 Rooftop manuals available for free PDF download: Service And Maintenance Instructions, Installation Instructions Manual

Carrier WeatherMaster 50HC14 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 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

Carrier WeatherMaster 50HC14 Service And Maintenance Instructions (132 pages)

Single Package Rooftop Electric Cooling Unit with Puron (R-410A) Refrigerant

Brand: Carrier | Category: Air Conditioner | Size: 14 MB

Table of Contents
1
Safety Considerations
2
Unit Arrangement and Access
2
General
2
Routine Maintenance
3
Filters
3
Supply Fan (Blower) Section
4
Supply Fan (Direct-Drive)
4
Supply Fan (Belt-Drive)
6
Staged Air Volume Control - 2 Speed Fan with Variable Frequency Drive (Vfd)
8
Staged Air Volume (SAV™) Indoor Fan Speed
8
System
8
Identifying Factory Option
8
Unit Installation with SAV Option
8
Additional Variable Frequency Drive (Vfd) Installation and Troubleshooting
8
Motor
9
Replacing the Motor
9
Changing Fan Wheel Speed
9
Cooling
12
Condenser Coil
12
Condenser Coil Maintenance and Cleaning Recommendation
12
Evaporator Coil
13
Thermostatic Expansion Valve (Txv)
13
TXV Operation
13
Replacing TXV
14
Refrigerant System Pressure Access Ports
14
Puron® (R-410A) Refrigerant
15
Refrigerant Charge
15
Cooling Charging Charts
15
Compressor
18
Lubrication
18
Replacing Compressor
18
Compressor Rotation
18
Filter Drier
18
Condenser-Fan Adjustment
18
Convenience Outlets
20
Installing Weatherproof Cover
20
Non-Powered Type
20
Unit-Powered Type
20
Duty Cycle
21
Maintenance
21
Fuse on Powered Type
21
Electric Heaters
21
Completing Heater Installation
22
Smoke Detectors
24
System
24
Controller
24
Smoke Detector Sensor
24
Smoke Detector Locations
25
Completing Installation of Return Air Smoke
25
- Detector
  25
FIOP Smoke Detector Wiring and Response
26
Sensor and Controller Tests
26
Sensor Alarm Test
26
Controller Alarm Test
26
Dirty Controller Test
27
Dirty Sensor Test
27
Changing the Dirty Sensor Test
27
Remote Station Test
28
SD-TRK4 Remote Alarm Test Procedure
28
Remote Test/Reset Station Dirty Sensor Test
28
Dirty Sensor Test Using an SD-TRK4
28
Detector Cleaning
28
Indicators
28
Troubleshooting
29
Protective Devices
29
Compressor Protection
29
Relief Device
30
Control Circuit, 24-V
30
Premierlink™ Control
30
RTU Open Control System
30
Economizer Systems
30
Economi$Er® IV Standard Sensors
36
Economi$Er IV Control Modes
36
Economi$Er IV Preparation
40
Differential Enthalpy
40
Single Enthalpy
40
DCV (Demand Controlled Ventilation) and Power
40
- Exhaust
  40
DCV Minimum and Maximum Position
40
Supply-Air Sensor Input
40
Economi$Er IV Troubleshooting Completion
40
Economi$Er X (Factory Option)
41
Pre-Start-Up/Start-Up
55
Start-Up, General
55
Unit Preparation
55
Additional Installation/Inspection
55
Return-Air Filters
55
Outdoor-Air Inlet Screens
55
Compressor Mounting
55
Internal Wiring
56
Refrigerant Service Ports
56
Compressor Rotation
56
Cooling
56
Heating
56
Form 50HC-4-14-02SM Rev. a
130
- Replaces: 50HC-4-14-01SM
  130

Carrier WeatherMaster 50HC14 Installation Instructions Manual (68 pages)

Single Package Rooftop Cooling Only Unit with Puron (R-410A) Refrigerant

Brand: Carrier | Category: Air Conditioner | Size: 13 MB

Table of Contents
1
Safety Considerations
1
Rated Indoor Airflow (Cfm)
2
Installation
6
Jobsite Survey
6
Step 1 - Plan for Unit Location
6
Step 2 - Plan for Sequence of Unit Installation
7
Step 3 - Inspect Unit
7
Step 4 - Provide Unit Support
7
Step 5 - Field Fabricate Ductwork
9
Step 6 - Rig and Place Unit
9
Step 7 - Convert to Horizontal and Connect
11
- Ductwork
  11
Step 8 - Install Outside Air Hood
11
Step 9 - Install External Condensate Trap and Line
13
Step 10 - Make Electrical Connections
14
Electric Heaters
22
Single Point Boxes
22
Humidi-Mizer
22
- System Control Connections
  22
Economi$Er
25
- Factory-Installed Option)
  25
Low Ambient Control (Factory Option)
38
Staged Air Volume (SAV) with Variable Frequency
38
- Drive (Factory Option)
  38
Comfortlink Controls (Factory Option)
38
Premierlink Controller (Factory Option)
43
Supply Air Temperature Sensor
46
Field Connections
46
Economizer Controls
49
RTU Open Control System
52
Field Connections
56
Communication Wiring - Protocols
58
Local Access
59
Outdoor Air Enthalpy Control
60
Smoke Detectors
60
Step 11 - Adjust Factory-Installed Options
62
Step 12 - Install Accessories
62
Step 13 - Check Belt Tension
62
Pre-Start and Start-Up
63
Start-Up Checklist
67

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