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Carrier 48H Manuals
Manuals and User Guides for Carrier 48H. We have
1
Carrier 48H manual available for free PDF download: Installation, Start-Up And Service Instructions Manual
Carrier 48H Installation, Start-Up And Service Instructions Manual (49 pages)
(LOW NOx) Single-Package Rooftop Heating/Cooling
Brand:
Carrier
| Category:
Air Conditioner
| Size: 1.82 MB
Table of Contents
Table of Contents
1
Safety Considerations
1
Installation
1
Step 1 - Provide Unit Support
1
Roof Curb Details
2
Unit Leveling Tolerances
3
Step 2 - Field Fabricate Ductwork
3
Step 3 - Install External Trap for Condensate Drain
3
Step 4 - Rig and Place Unit
3
Rigging Details
4
Step 5 - Install Flue Hood
4
Step 6 - Install Gas Piping
4
Step 7 - Make Electrical Connections
4
Field Power Supply
4
Physical Data
5
Base Unit Dimensions-48HJ004-007
7
Gas Piping Guide (with Accessory Thru-The-Curb Service Connections)
8
Step 8 - Adjust Factory-Installed Options
8
Moisturemiser Dehumidifcation Package
8
Apollo Control
8
Disconnect Switch
8
Power Wiring Connections
9
Low-Voltage Connections with or Without Economizer
9
Field Control Wiring Raceway
9
48HJ Electrical Data Standard Motor (Units Without Electrical Convenience Outlet)
10
48HJ High-Static Motor Units Without Electrical Convenience Outlet
11
48HJ High-Static Motor Units with Electrical Convenience Outlet
11
Assembly
12
Accessory Field-Installed Humidistat
12
Typical Moisturemiser Dehumidification Package Humidistat Wiring (208/230-V Unit Shown)
12
Typical Access Panel Locations
13
Outdoor-Air Hood Details
13
Horizontal Durablade Economizer Installation
13
Horizontal Discharge Block-Off Plate
13
Typical Durablade Economizer and Wiring Harness
14
Durablade Economizer Damper Minimum Position Setting
14
Durablade Economizer Minimum Position Damper Setting
14
Outdoor-Air Thermostat/Enthalpy Control Installation
14
Durablade Economizer Barometric Relief Damper Characteristics
15
Economizer Component Locations
15
Exhaust Air Hood Assembly
15
Outdoor-Air Hood Assembly
16
Completed Hood Assembly
16
Rear Economiser Flange Installation
16
Economiser Wiring
16
Economiser Sensor Wiring
17
Typical Access Panel Locations (Standard Efficiency Unit Shown)
17
Wiring Diagram for Power Exhaust System
17
Supply-Air Sensor Placement
18
Changeover Set Points
18
Default Potentiometer Settings
18
Ventilation Air (Minimum Position Set Up)
18
Evaporator-Fan Pulley Adjustment
19
Step 9 - Adjust Evaporator-Fan Speed
19
Belt-Drive Motors
19
48HJ Fan Rpm at Motor Pulley Setting with Standard Motor
20
48HJ Fan Rpm at Motor Pulley Setting with High Static Motor
20
Evaporator-Fan Motor Data-Standard Motor
20
Evaporator-Fan Motor Data-High-Static Motors
20
Motor Nominal Horsepower
21
Outdoor Sound Power (Total Unit)
21
48HJ004 Fan Performance-Vertical Discharge Units with Standard Motor
21
48HJ004 Fan Performance-Vertical Discharge Units with High-Static Motor
21
48HJ005 Fan Performance-Vertical Discharge Units with Standard Motor
22
48HJ005 Fan Performance-Vertical Discharge Units with High-Static Motor
22
48HJ006 Fan Performance-Vertical Discharge Units with Standard Motor
23
48HJ006 Fan Performance-Vertical Discharge Units with High-Static Motor
23
48HJ007 Fan Performance-Vertical Discharge Units with Standard Motor
24
48HJ007 Fan Performance-Vertical Discharge Units with High-Static Motor
24
48HJ004 Fan Performance-Horizontal Discharge Units with Standard Motor
25
48HJ004 Fan Performance-Horizontal Discharge Units with High-Static Motor
25
48HJ005 Fan Performance-Horizontal Discharge Units with Standard Motor
26
48HJ005 Fan Performance-Horizontal Discharge Units with High-Static Motor
26
48HJ006 Fan Performance-Horizontal Discharge Units with Standard Motor
27
48HJ006 Fan Performance—Horizontal Discharge Units with High-Static Motor
27
48HJ007 Fan Performance—Horizontal Discharge Units with Standard Motor
28
48HJ007 Fan Performance—Horizontal Discharge Units with High-Static Motor
28
Economizer Static Pressure Drop (In. Wg)
28
FIOP Moisturemiser Dehumidification Package Static Pressure Drop (In. Wg)
28
Refrigerant Service Ports
29
Compressor Rotation
29
Pre-Start-Up
29
Start-Up
29
Cooling
30
Altitude Compensation
30
Heating
30
Operating Sequence
30
Moisturemiser Option Operation
32
Lubrication
33
Cleaning
33
Service
33
Condenser-Fan Adjustment
34
Loss-Of-Charge Switch
34
Freeze-Stat
34
Refrigerant Charge
34
Flue Gas Passageways
35
Combustion-Air Blower
35
Limit Switch
35
Cooling Charging Chart, 48HJ004 with Optional Moisturemiser Dehumidification Package
36
Cooling Charging Chart, 48HJ006 with Optional Moisturemiser Dehumidification Package
36
Cooling Charging Chart, 48HJ005 with Optional Moisturemiser Dehumidification Package
36
Cooling Charging Chart, 48HJ007 with Optional Moisturemiser Dehumidification Package
36
Replacement Parts
37
LED Error Code Description
37
Main Burners
37
Burner Ignition
37
Spark Gap Adjustment
38
LED Error Code Service Analysis
39
Troubleshooting
39
Heating Service Analysis
40
Durablade Economizer Service Analysis
40
Economiser Flash Code Identification
41
Economiser Troubleshooting
41
Moisturemiser Dehumidification Subcooler Service Analysis
42
Cooling Service Analysis
43
Typical Wiring Schematic and Component Arrangement (208/230 3-Phase Unit Shown)
44
Start-Up Checklist
48
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