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48TJD
Carrier 48TJD User Manual
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10
LEGEND
Fig. 11 — Power Wiring Connections
C—
Contactor
COMP
—
Compressor
NEC
—
National Electrical Code
TB
—
T
er
minal Block
Fig. 12 — Low-Voltage Connections
LEG
END
AHA
—
Adjustable Heat
Anticipator
Field Wiring
F
acto
ry W
iring
208/230-1
-60
208/230
-3-60
460-3-60
(SIZE 007 O
NL
Y)
208/230-3-6
0
575-
3-60, 460-3
-60
(SIZES 004-006)
575-3-60
(SIZE 007 O
NL
Y)
9
11
Table of Contents
Table of Contents
1
Safety Considerations
1
Installation
1
Step 1 - Provide Unit Support
1
Slab Mount
2
Step 2 - Field Fabricate Ductwork
2
Step 3 - Install External Trap for Condensate Drain
2
Step 4 - Rig and Place Unit
2
Roof Curb Dimensions
3
Unit Leveling Tolerances
4
Internal Trap Condensate Drain
4
Step 5 - Install Flue Hood
4
Step 6 - Install Gas Piping
4
Rigging Details
5
Step 7 - Make Electrical Connections
5
Disconnect Box Location
5
Field Power Supply
5
Physical Data
6
Base Unit Dimensions
8
Flue Hood Details
9
Gas Piping Guide (with Accessory Thru-The-Curb Service Connections)
9
Conduit Installation
9
Component Location
9
Power Wiring Connections
10
Low-Voltage Connections
10
Field Control Wiring
10
Electrical Data
11
Damper Panel with Manual Outdoor-Air Damper Installed
12
Outdoor-Air Hood Details
12
Outdoor-Air Damper with Hood Attached
12
Step 8 - Make Outdoor-Air Adjustment and Install Outdoor-Air Hood
12
Typical Access Panel Locations
13
Horizontal Durablade Economizer Installation
13
Optional Durablade Economizer
13
Horizontal Discharge Block-Off Plate
14
Durablade Economizer Installed in Unit
14
Durablade Economizer Minimum Position Setting
14
Outdoor-Air Thermostat/Enthalpy Control Installation
14
Wiring Connections for Outdoor-Air Thermostat
15
Durablade Economizer Barometric Relief Damper Characteristics
15
Economi$Er Component Locations
15
Exhaust Air Hood Assembly
15
Economi$Er Installed
16
Outdoor-Air Hood Assembly
16
Rear Economi$Er Flange Installation
16
Completed Hood Assembly
16
Factory Installed Connections
17
Economi$Er Wiring
17
Economi$Er Sensor Wiring
17
Wiring Diagram for Power Exhaust System
18
Typical Access Panel Locations (Standard Efficiency Unit Shown)
18
Supply-Air Sensor Placement
19
Changeover Set Points
19
Default Potentiometer Settings
19
Barometric Relief Capacity
19
Evaporator-Fan Pulley Adjustment
20
Belt Drive Motor Mounting
20
Direct-Drive Motor Mounting
20
Step 9 - Adjust Evaporator-Fan Speed
20
Fan Rpm at Motor Pulley Settings
21
Motor Data
21
Accessory/Fiop Static Pressure* (In. Wg) — 48TJ004-007
21
Fan Performance 48TJ004 — Vertical Discharge Units, Standard Motor
22
Fan Performance 48TJ004 — Vertical Discharge Units, Alternate Motor
22
Fan Performance 48TJ004 — Vertical Discharge Units, High-Static Motor
23
Fan Performance 48TJ005 — Vertical Discharge Units, Standard Motor
23
Fan Performance 48TJ005 — Vertical Discharge Units, Alternate Motor
24
Fan Performance 48TJ005 — Vertical Discharge Units, High-Static Motor
24
Fan Performance 48TJ006 — Vertical Discharge Units, Alternate Motor
25
Fan Performance 48TJ006 — Vertical Discharge Units, Standard Motor
25
Fan Performance 48TJ006 — Vertical Discharge Units, High-Static Motor
26
Fan Performance 48TJ007 — Vertical Discharge Units, Standard Motor
27
Fan Performance 48TJ007 — Vertical Discharge Units, High-Static Motor
28
Fan Performance 48TJ004 — Horizontal Discharge Units, Standard Motor
29
Fan Performance 48TJ004 — Horizontal Discharge Units, Alternate Motor
29
Fan Performance 48TJ004 — Horizontal Discharge Units, High-Static Motor
30
Fan Performance 48TJ005 — Horizontal Discharge Units, Standard Motor
31
Fan Performance 48TJ005 — Horizontal Discharge Units, Alternate Motor
31
Fan Performance 48TJ005 — Horizontal Discharge Units, High-Static Motor
32
Fan Performance 48TJ006 — Horizontal Discharge Units, Standard Motor
32
Fan Performance 48TJ006 — Horizontal Discharge Units, Alternate Motor
33
Fan Performance 48TJ006 — Horizontal Discharge Units, High-Static Motor
34
Fan Performance 48TJ007 — Horizontal Discharge Units, Standard Motor
35
Fan Performance 48TJ007 — Horizontal Discharge Units, High-Static Motor
36
Compressor Rotation
37
Service Panel Location
37
Altitude Compensation
37
Start-Up
37
Heating
38
Burner Section Details
38
Adjust Gas Input
38
Measure Manifold Pressure (Propane Units)
38
Operating Sequence
39
Safety Relief
39
High Flow Valves
39
Ventilation (Continuous Fan)
39
Propping up Condenser Coil Top Cover
40
Cleaning
40
Coil Cleaning
40
Service
40
Lubrication
41
Condenser Fan Adjustment
41
Refrigerant Charge
41
Manual Outdoor-Air Damper
41
Cooling Charging Chart, 48TJ004
42
Cooling Charging Chart, 48TJ005
42
Cooling Charging Chart, 48TJ006
42
Cooling Charging Chart, 48TJ007
42
Main Burners
43
LED Error Code Description
43
Burner Ignition
43
Combustion-Air Blower
43
Burner Tray Details
44
Spark Adjustment
44
LED Error Code Service Analysis
45
Heating Service Analysis
45
Troubleshooting
45
Cooling Service Analysis
46
Durablade Economizer Troubleshooting
47
Economi$Er Troubleshooting
48
Typical Wiring Diagram and Component Arrangement
49
Typical Wiring Schematic and Component Arrangement
50
Start-Up Checklist
52
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Carrier 48TJD Specifications
General
Brand
Carrier
Model
48TJD
Category
Air Conditioner
Language
English
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