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Addison
Air Conditioner
PR Series
Page 83 (Revision Guide)
Addison PR Series - Revision Guide
84 pages
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P
age 83 of 84
Revision Guide:
Date
:
Pag
e
:
Des
cription:
By:
19 Jun 20
All
Combined all prev
ious IOM
s into new for
mat
DS
19 Jun 20
All
Multiple updat
es
, additions, and clarifications
DS
PR Series Ins
tallat
ion, Operat
ion, and Main
tenance Manual
82
84
Table of Contents
Main Page
Default Chapter
3
Table of Contents
3
SECTION 1: Safety Introduction and Labeling Guide
5
Warnings, Dangers, Cautions, and Notices
5
Label Placement Guide
6
Figure 1: Label Placement Drawing
6
Sample Unit Data Plate
7
Figure 2: Sample Unit Data Plate
7
SECTION 2: Introduction and Pre-Installation
8
Description of Operation
8
Inspection and Setup
8
Unit Nomenclature Example
9
SECTION 3: Installer Responsibility
13
Introduction
13
Corrosive Chemicals
13
Required Equipment and Materials
13
SECTION 4: Critical Considerations
14
Required Clearances
14
Unit Placement Considerations
15
Hardware
15
Table 1: Recommended Torque Settings
15
SECTION 5: National Standards and Applicable Codes
16
Refrigerant Handling Practices
16
Installation Codes
16
Aircraft Hangers
16
Parking Structures and Repair Garages
16
Electrical
16
SECTION 6: Lifting a Packaged Rooftop Unit
17
Moving/Lifting the Unit
17
Moving the Unit with a Forklift
17
Lifting the Unit with a Crane
17
Figure 3: Large Unit Lifting
18
Figure 4: Medium Unit Lifting
19
Figure 5: Small Unit Lifting
20
SECTION 7: Unit Placement
21
Figure 6: Roof Curb Installation
21
SECTION 8: Ductwork
22
Considerations
22
Return Air Ductwork
22
Discharge Ductwork
22
SECTION 9: Refrigeration Circuits and Piping
23
Refrigerant
23
Components and Configurations
23
Figure 7: Circuit Diagram for Standard Compressor
24
Figure 8: Circuit Diagram for Standard Compressor with Hot Gas Bypass and Modulating Hot Gas Reheat
25
Figure 9: Circuit Diagram for Digital Compressor with Modulating Hot Gas Reheat
26
Figure 10: Circuit Diagram for Standard Compressor
27
Figure 11: Circuit Diagram for Digital Compressor
28
SECTION 10: Energy Recovery/Conservation Wheels
29
Principal of Operation
29
SECTION 11: Gas Heater Packages
30
Principle of Operation
30
Gas Piping and Pressure
30
Table 2: Manifold Size and Minimum Pressure
30
Operating and Safety Controls
31
Wiring
31
Sequence of Operation
31
Figure 13: Example Gas Heater Wiring Diagram - 5:1 Modulation
35
Figure 14: Example Gas Heater Wiring Diagram - 10:1 Modulation
36
Figure 15: Example Gas Heater Wiring Diagram - Dual Furnace
37
SECTION 12: Electric Heater Packages
38
Principle of Operation
38
Operating and Safety Controls
38
Wiring
38
Table 3: Standard Electric Heaters
39
Figure 16: Typical Electric Heater Wiring Diagram
40
SECTION 13: Unit Electrical
41
Wiring and Electrical Connections
41
Disconnect
41
Current Draw
41
Wiring Connections
41
Voltage Unbalance
41
Low Voltage Wiring
41
Table 4: Low Voltage Wiring Lengths
41
Figure 17: Typical Electrical Wiring Diagram
42
Figure 18: Phase Monitor Data
49
SECTION 14: Sequence of Operation
51
Unit Configuration
51
Controls Options
51
Figure 19: Equipment Touch Display
51
Basic Sequence of Operation
52
Accessory Controls Options
52
SECTION 15: Start-Up Procedure
53
Tools & Supplies Requires
53
Pre-Start Checks
53
Figure 20: P-Trap Configuration
54
Table 5: Condensate Connection Sizes
54
Table 6: Hot Water Heating Coil Flow Rate
55
Table 7: Superheat and Subcooling - 100% OA
55
Table 8: Superheat and Subcooling - Recirc
55
Table 9: Superheat and Subcooling - Heat Pump
55
Table 10: Refrigerant Temperature-Pressure
56
Pre-Start Form
57
SECTION 16: Start-Up Procedures
60
Start-Up Form
60
SECTION 17: Unit Maintenance
66
Installation Code and Quarterly Inspections
66
General
67
Unit Exterior
67
Direct-Drive Supply and Exhaust Fans
67
Condensing Fans
67
Refrigeration Circuit Components
67
Condensate Drain Pan and Drain
67
Dampers
67
Electric Heater Wiring and Wiring Conn
67
Filters
67
Table 11: Maintenance Guidelines
67
SECTION 18: Replacement Parts
68
Table 12: Air Filters
69
SECTION 19: Troubleshooting
70
Supply Fan
71
Table 13.1: Supply Fan
71
Compressor
72
Table 13.2: Compressor
72
Refrigeration Circuit
74
Table 13.3: Refrigeration Circuit
74
Variable Speed Head Pressure Control
76
Table 13.4: Variable Speed Heat Pressure Control
76
Energy Conservation Wheel
78
Table 13.5: Energy Conservation Wheel
78
Gas Furnace
79
Table 13.6: Gas Furnace
79
Electric Heater
80
Table 13.7: Electric Heater
80
SECTION 20: Addison Warranty
81
Revision Guide
83
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