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AAON M2 Series Manuals
Manuals and User Guides for AAON M2 Series. We have
1
AAON M2 Series manual available for free PDF download: Installation Operation & Maintenance
AAON M2 Series Installation Operation & Maintenance (124 pages)
Modular Indoor Air Handling Units & Self-Contained Units
Brand:
AAON
| Category:
Air Handlers
| Size: 4.28 MB
Table of Contents
Table of Contents
3
Safety
9
Feature String Nomenclature
15
Figure 1 - Typical M2 Series Selection
15
M2 Series Base Feature String Nomenclature
16
Fan Module Description
17
Filter Module Description
18
Mixing Module Description
19
Heat Module Description
20
Blank Module Description
22
Coil Module Description
23
Controls Module Description
25
Energy Recovery Module Description
26
Water-Source Heat Pump Module Description
27
Figure 2 - Unit Orientation
29
Unit Orientation
29
General Information
30
Codes and Ordinances
31
Receiving Unit
31
Storage
32
Preparation for Storage
32
Direct Expansion (DX) Units
32
Figure 3 - Lockable Handle
32
Gas or Electric Heating
34
Wiring Diagrams
34
Condensate Drain Pan
34
Table 1 - Electric and Gas Heating Capacities
35
Installation
36
Locating Units
36
Lifting the Assembled Unit
37
Table 2 - Minimum Clearances
37
Figure 4 - Service Access Clearance
37
Figure 5 - M2 Series Unit Four Point Lifting
38
Figure 6 - M2 Series Unit Eight Point Lifting
39
Lifting the Individual Modules
40
Floor Mounted Units
40
Suspended Units
40
Figure 7 - M2 Series Individual Module Bottom Tier Lifting
40
Figure 8 - M2 Series Individual Module Top Tier Lifting
40
Module Assembly
41
Figure 9 - Unit Suspension
41
Figure 10 - Module Assembly Schematic
43
Figure 11 - Bolted Base Rail
44
Figure 12 - Bar Clamp
44
Figure 13 - Self-Tapping Screw
44
Figure 14 - Strap Types
45
Figure 15 - Strap Locations
45
Figure 16 - Strap Positioning
45
Figure 17 - Strap Installation
45
Figure 18 - Power and Control Wiring
45
Figure 19 - Quick Connects
45
Evaporator Coils
47
Hot Gas Reheat
47
Hot Gas Bypass
47
Refrigerant-To-Water Heat Exchanger
47
Figure 20 - TXV Bulb Position
47
Freezing Water in the Heat Exchanger
48
Open Loop Applications
48
Figure 21 - Water-Source Heat Pump Water Piping
49
Table 3 - Glycol Freezing Points
49
Water Piping
49
Figure 22 - Water-Cooled Only Water Piping
50
Table 4 - Standard Water-Source Connections
50
Table 5 - Freezing Points
51
Heat Exchanger Safeties
52
Waterside Economizer
52
Figure 23 - Waterside Economizer Piping
52
Heating Coils
53
Table 6 - Steam Distributing Coil Connection Sizes
53
Table 7 - Hot Water Coil Connection Sizes
53
Figure 24 - Steam Distributing Piping
53
Figure 25 - Hot Water Piping
53
Chilled Water Coils
54
Condensate Drain Piping
54
Table 8 - Chilled Water Coil Connection Sizes
54
Figure 26 - Chill Water Piping
54
Table 9 - Drain Trap Dimensions
55
Table 10 - Blow-Through Drain Trap Dimensions
55
Figure 27 - Draw-Through Drain Trap
55
Figure 28 - Blow-Through Drain Trap
55
Blower Wheels
56
Electrically Commutated Motor (ECM) Air Adjustment
56
Figure 29 - EC Motor Wiring Diagram for Controls by Others
56
Figure 30 - Jumper for Remote Fan Speed Control
56
Banded Wheel Air Adjustment
57
Figure 31 - Potentiometer
57
Figure 32 - Supply Fan Banding
58
Electric Heating
59
Electrical
59
Cutting Electrical Openings
59
Thermostat Control Wiring
61
Table 11 - Control Wiring
61
Gas Fired Duct Furnace
62
Unit Location and Clearances
62
Gas Supply, Piping and Connections
62
Table 12 - Gas Inlet Pressure
62
Duct Furnace Component Identification
63
Figure 33 - Sediment Trap for Gas Heat
63
Figure 34 -Gas Heater Horizontal Configuration
63
Operating and Safety Instructions
64
Figure 35 -Gas Heater Vertical Configuration
64
Figure 36 - Gas Valve
64
Startup
65
Figure 37 - 1.2" W.C. Manifold Natural Gas
66
Figure 38 - 3.5" W.C. Manifold Natural Gas
66
Shutdown
67
Figure 39 - Flame Sensor Current Check
67
Table 13 - Gas Heater Troubleshooting
68
Table 14 - Gas Heater Troubleshooting Continued
69
Furnace Maintenance
70
Energy Recovery Units
71
Initial Mechanical Check and Setup
71
Figure 40 - Energy Recovery Wheel
71
Routine Maintenance and Handling
72
Figure 41 - Cross Section of Air Seal Structure
72
Cleaning
73
Figure 42 - Lifting Hole Locations
73
Wheel Drive Components
74
Startup Procedure
75
Figure 43 - Avoid Racking of Cassette Frame
75
Figure 44 - Diameter Seal Adjustment
75
Figure 45 - Hub Seal Adjustment
75
Service
76
Figure 46 - Segment Retainer
76
Figure 47 - Segment Installation
76
Figure 48 - Belt Replacement
77
Startup
78
Filters
78
Check out
78
Commissioning
80
Operation
80
Adjusting Refrigerant Charge
81
Table 15 - Acceptable Air-Cooled Refrigeration Circuit Values
82
Table 16 - Acceptable Water-Cooled Refrigeration Circuit Values
82
Table 17 - R-410A Refrigerant Temperature-Pressure Chart
83
Refrigeration Troubleshooting
84
Table 18 - Refrigeration Problems, Causes, and Solutions
84
Maintenance
85
Fan Assembly
85
Bearings
85
Belts
86
Table 19 - Bearing Setscrew Torque Recommendations
86
Figure 49 - Angular Misalignment
86
Figure 50 - Parallel Misalignment
86
Figure 51 - Belt Deflection
86
Indoor Coils
87
Refrigeration Cycle
87
Brazed Plate Heat Exchanger Cleaning
87
E-Coated Coil Cleaning
87
Electric Heating
89
Steam or Hot Water Heating
89
Cleaning
89
Chilled Water
89
DX Water Source Cooling
89
Condensate Drain Pans
89
Duct Furnace
89
Lubrication
89
Replacement Parts
90
AAON-Longview Product Support
90
Table 20 - Fan Bearing Lubrication Schedule
90
Phase and Brownout Protection Module
91
Filter Replacement
93
Table 21 - M2-005 and M2-008 Filters
93
Table 22 - M2-011 and M2-014 Filters
93
Table 23 - M2-018 and M2-022 Filters
94
Table 24 - M2-026 Filters
94
Table 25 - M2-032 and M2-036 Filters
94
Figure 52 - Filter Layout
95
Appendix A - Heat Exchanger Corrosion Resistance
96
Figure 53 - A/C Split System Piping, Suction down
98
Figure 54 - A/C Split System Piping, Suction up
99
Figure 55 - A/C with LAC Split System Piping, Suction up
100
Figure 56 - A/C with Modulating Hot Gas Reheat Split System Piping, Suction down
101
Figure 57 - A/C with Modulating Hot Gas Reheat Split System Piping, Suction up
102
Figure 58 - A/C with Hot Gas Bypass Split System Piping, Suction down
103
Figure 59 - A/C with Hot Gas Bypass Split System Piping, Suction up
104
Figure 60 - A/C with Modulating Hot Gas Reheat and Hot Gas Bypass Split System Piping
105
Figure 61 - A/C with Modulating Hot Gas Reheat and Hot Gas Bypass Split System Piping
106
Figure 62 - Heat Pump Split System Piping, Suction down
107
Figure 63 - Heat Pump Split System Piping, Suction up
108
Figure 64 - Heat Pump with Modulating Hot Gas Reheat Split System Piping, Suction down
109
Figure 65 - Heat Pump with Modulating Hot Gas Reheat Split System Piping, Suction up
110
Figure 66 - Heat Pump with Hot Gas Bypass Split System Piping, Suction down
111
Figure 67 - Heat Pump with Hot Gas Bypass Split System Piping, Suction up
112
Figure 68 - Heat Pump with Modulating Hot Gas Reheat and Hot Gas Bypass Split System Piping, Suction down
113
Figure 69 - Heat Pump with Modulating Hot Gas Reheat and Hot Gas Bypass Split System Piping, Suction up
114
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