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50HJ012
Carrier 50HJ012 Manuals
Manuals and User Guides for Carrier 50HJ012. We have
3
Carrier 50HJ012 manuals available for free PDF download: Installation, Start-Up And Service Instructions Manual, Installation Instructions Manual
Carrier 50HJ012 Installation, Start-Up And Service Instructions Manual (61 pages)
Single-Package Rooftop Electric Cooling Units
Brand:
Carrier
| Category:
Air Conditioner
| Size: 2 MB
Table of Contents
Safety Considerations
1
Table of Contents
1
Installation
1
Step 1 - Provide Unit Support
1
Install Condensate Drain Line and External Trap
2
Step 2 - Field Fabricate Ductwork
2
Step 3 - Install Condensate Drain Line
2
Roof Curb Details
3
Unit Leveling Tolerances
4
Condensate Drain Location
4
Condensate Drain Piping Details
4
Step 4 - Rig and Place Unit
4
Base Unit Dimensions
5
Left Side
5
Front Side
5
Right Side
5
Physical Data
6
Power Wiring Connections
7
Step 5 - Make Electrical Connections
7
Electrical Data
8
Electric Heater Usage
10
Legend and Notes for Table 2
10
Field Control Wiring
11
Field Control Wiring Raceway
11
Low Voltage Connections
11
Low-Voltage Connections
11
Accessory Field-Installed Humidistat
12
Adjust Factory-Installed Options
12
Heat Anticipator Settings
12
Light Commercial Thermidistat Device
12
Field Control Wiring
13
Typical Humidi-Mizer Adaptive Dehumidification System
13
Convenience Outlet
14
Manual Outdoor-Air Damper
14
Novar Controls
14
Optional Manual Outdoor-Air Damper with Hood Attached
14
Outdoor-Air Hood Details
14
Install the Supply Air Temperature (SAT) Sensor
15
Outdoor Air Damper Position Setting
15
Outdoor Air Temperature (OAT) Sensor
15
Premierlink Controller
15
Premierlink Control
16
Premierlink Sensor Usage
16
Enthalpy Sensors and Control
17
Return Air Enthalpy Sensor
17
Typical Premierlink Controls Wiring
17
Economi$Er IV Component Locations
18
Economi$Er2 Component Locations
18
Hood Box Removal
18
Optional Economi$Er IV and Economi$Er2
18
Typical Access Panel Locations
18
Economi$Er IV Standard Sensors
19
Filter Installation
19
Indoor Coil Access Panel Relocation
19
Outdoor-Air Hood Construction
19
Supply Air Sensor Temperature
19
Economi$Er IV Wiring
20
Economi$Er2 with 4 to 20 Ma Control Wiring
20
Barometric Relief Flow Capacity
21
Economi$Er IV Control Modes
21
Outdoor Air Damper Leakage
21
Return Air Pressure Drop
21
Differential Enthalpy Control
22
Exhaust Set Point Adjustment
22
Indoor Air Quality (IAQ) Sensor Input
22
Outdoor Enthalpy Changeover
22
CO2 Sensor Maximum Range Setting
23
Economi$Er IV Control
23
Enthalpy Changeover Set Points
23
Damper Movement
24
Demand Controlled Ventilation (DCV)
24
Occupancy Control
24
Thermostats
24
CO2 Sensor Standard Settings
25
Minimum Required Airflow Exceptions
25
Step 7 - Adjust Evaporator-Fan Speed
25
Typical Belt-Drive Motor Mounting
26
Evaporator-Fan Pulley Adjustment
26
Humidi-Mizer Adaptive Dehumidification System Static Pressure Drop
26
Fan Rpm at Motor Pulley Setting*; Standard Motor/Drive
27
Fan Rpm at Motor Pulley Setting*; High-Static Motor/Drive
27
Evaporator-Fan Motor Data — Standard Motor
27
General Fan Performance Notes
28
Evaporator-Fan Motor Data — High-Static Motors
28
Accessory/Fiop Economi$Er IV and Economi$Er2 Static Pressure (In. Wg)
28
Compressor Rotation
43
Cooling
43
Pre-Start-Up
43
Start-Up
43
Heating
44
Safety Relief
44
Ventilation (Continuous Fan)
44
Operating Sequence
44
Economizer Temperature Control Example
45
DX Cooling Temperature Control Example
45
Humidi-Mizer Normal Design Cooling Operation
46
Humidi-Mizer Subcooling Mode Operation
46
Evaporator Coil
47
Condenser Coils
47
Condensate Drain
47
Service
47
Refrigerant Charge
48
Lubrication
48
Belt/Pulley Adjustment
48
Condenser-Fan Adjustment
48
Replacement Parts
49
To Use Cooling Charging Charts, Standard Units
49
Cooling Charging Charts, Standard 50HJ008
49
Cooling Charging Charts, Standard 50HJ009
49
Cooling Charging Charts, Standard 50HJ012
50
Cooling Charging Charts, Standard 50HJ014
50
Troubleshooting
52
Cooling Troubleshooting
53
Economi$Er IV Troubleshooting
54
Economi$Er IV Input/Output Logic
55
Economi$Er IV Functional View
55
Index
56
Service Training
58
Start-Up Checklist
60
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Carrier 50HJ012 Installation, Start-Up And Service Instructions Manual (58 pages)
Single-Package Rooftop Electric Cooling Units
Brand:
Carrier
| Category:
Chiller
| Size: 5 MB
Carrier 50HJ012 Installation Instructions Manual (24 pages)
Accessory Low Ambient Operation Motormaster III Control Package 50/60 Hz
Brand:
Carrier
| Category:
Heat Pump
| Size: 1 MB
Table of Contents
Table of Contents
1
Safety Considerations
1
General
1
Installation
2
Step 1 - Install Motor
2
Step 2 - Install Motormaster
3
Controller
3
Step 3 - Install Sensor
3
Step 4 - Make Electrical Connections
6
Step 5 - Install Field-Fabricated Wind Baffles and Brackets
6
Step 6 - Restore Power to Unit
6
38Ak012
11
38AK/AKS008 (50/60 Hz) 100% 90 (32)
15
Troubleshooting
17
Printed in U S A. Form 38/48/50-4SI
18
Replaces: New
18
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