AAON LN Series Manuals

AAON LN Series Manuals

Manuals and User Guides for AAON LN Series. We have 1 AAON LN Series manual available for free PDF download: Installation Operation & Maintenance

AAON LN Series Installation Operation & Maintenance

AAON LN Series Installation Operation & Maintenance (64 pages)

Chillers and Outdoor Mechanical Rooms

Brand: AAON | Category: Chiller | Size: 2 MB

Table of Contents

Table of Contents
2
Codes and Ordinances
14
Receiving Unit
14
Storage
15
Chiller
15
Wiring Diagrams
16
General Maintenance
16
Chiller Primary Pumping
16
Automatic Air Vent
17
Dual Pumps
17
Pressure Gauges and Thermometers
17
Pipe Insulation
17
Table 1 - Service Clearances
18
Figure 1 - LN Base
18
Chiller Placement
18
Curb and Steel Mount Installation
18
Table 2 - Mounting Dimensions
19
Figure 2 - Curb Mounting with Dimensions
19
Figure 3 - Steel Mounting Rail with Dimensions
19
Figure 4 - Lifting Points
19
Lifting and Handling
19
Figure 5 - Lifting Detail of a 45-60 Ton Unit
20
Figure 6 - Lifting Detail of a 75-140 Ton Unit
20
Water Connection
21
Mounting Isolation
21
Figure 7 - Factory Supplied End Flashings
21
Access Doors
21
End Flashing Installation
21
Table 3 - Nameplate Voltage Markings
22
Low Ambient Operation
22
Electrical
22
Figure 8 - Front View of Utility Entry and Power Switch from Control Compartment
23
Table 4- Tandem Circuited Variable Speed Compressor VFD Frequency Range
24
Variable Speed Compressors
24
Figure 9 - Fan with the HUB on the Top and RET on the Bottom
26
Figure 10 - Bushing Mount Location
26
Figure 11 - RET with Pin in Groove 4
26
Axial Flow Condenser Fans
26
Table 5 - Return/Exhaust Fan Pin Location
27
Table 6 - Return/Exhaust Fan Pin Location
27
Figure 12 - Fan HUB and RET Castings
27
Table 7 - Fan Assembly Bushing Torque Specifications
28
Figure 13 - Pitch Insert
28
General
29
Compressors
29
Refrigerant Suction Line Filter
29
Suction Filter Removal Instructions
29
Adjusting Refrigerant Charge
30
Table 8 - Acceptable Refrigeration Circuit Values
31
Table 9 - R-410A Refrigerant Temperature-Pressure Chart
32
Lubrication
33
Air-Cooled Condenser
33
Brazed Plate Heat Exchanger Cleaning
33
E-Coated Coil Cleaning
33
Microchannel Coil Cleaning
36
Service
38
Replacement Parts
38
AAON Technical Support
38
Automatic Air Vent Valves
39
Pumps - Installation and Operating Instructions
41
Pump Piping - General
42
Pump Operation
43
General Care
44
Dual Pump Specific Information
46
Suction Guides
51
Flo-Trex Combination Valve
52

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