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Emerson PFHZ26A-L Manuals
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Emerson PFHZ26A-L manual available for free PDF download: Installation, Operation And Maintenance Manual
Emerson PFHZ26A-L Installation, Operation And Maintenance Manual (36 pages)
Liebert Prop Fan Condensing Unit
Brand:
Emerson
| Category:
Air Conditioner
| Size: 0.91 MB
Table of Contents
Table of Contents
3
1 Product Description
5
Prop Fan Condensing Units
5
Base System 95°F (35°C) Ambient Models
5
105°F (41°C) Ambient Models
5
Quiet-Line Models
5
Optional Equipment
5
Coated Coil
5
Pre-Charged Refrigeration Line Sets
5
Refrigerant Line Sweat Adapter Kit
5
277V Step-Down Transformer
5
2 Installation
6
Equipment Inspection
6
Location Considerations
6
Dimensional Data
7
Figure 1 Dimensions, Horizontal Air Discharge
7
Table 1 Cabinet and Floor Planning Data, Horizontal Air Discharge
7
Figure 2 Dimensions, Top Air Discharge
8
Table 2 Electrical and Piping Connections, Top Air Discharge
8
Figure 3 Dimensional Data, 277V Step-Down Transformer
9
Piping and Electrical Connections
10
Figure 4 Piping and Electrical Connections, Horizontal Discharge
10
Table 3 Electrical and Piping Connections, Horizontal Air Discharge
10
Figure 5 Piping and Electrical Connections, Top Air Discharge
11
Table 4 Piping and Electrical Connections, Top Air Discharge
11
Figure 6 General Piping Arrangement
12
Figure 7 Electrical Field Connections, 1- to 5-Ton Units
13
Figure 8 Electrical Field Connections, 8-Ton Units
14
Figure 9 Single-Phase, 1-3 Ton Model Schematic, Typical
15
Figure 10 Three-Phase, 3-5 Ton Model Schematic, Typical
16
Figure 11 Three-Phase, 8 Ton Model Schematic, Typical
17
Piping Considerations
18
Piping for Elevation Differences between PFH and Evaporator
18
Figure 12 Refrigerant Piping Diagram
19
Table 5 Pipe Length and Condenser Elevation Relative to Evaporator
19
Table 6 Equivalent Lengths for Various Pipe Fittings, Ft (M)
19
Pre-Charged Line Sets
20
Field-Fabricated Line Sets
20
Table 7 Refrigerant Charge in Liebert Pre-Charged R-407C Line Sets
20
Table 8 Liebert PFH Unit Charge Levels and Coupling Size
21
Table 9 Recommended Line Sizes, OD Cu
21
Installation of Piping to Units
22
R-407C PFH Installed as a Replacement Condensing Unit in an R-22 System
22
Table 10 Piping Connection Sizes and Torque
22
Table 11 Line Charges - Refrigerant Per 100 Ft. (30M) of Type L Copper Tube
22
General System Charge Requirements
24
Table 12 Evaporator Charge Levels
24
Electrical Connections
25
Low-Voltage Control Wire Connections
25
Low-Voltage Control Wire Sizing
25
Table 13 Design Refrigerant Pressures
25
Table 14 Application Limits
25
Table 15 Recommended Minimum Wire Size
25
Electrical Data
26
Table 16 Electrical Data-Standard Sound and Ambient Models (95°F/35°C) 60Hz
26
Table 17 Electrical Data-High Ambient Models (105°F/41°C) 60Hz
26
Table 18 Electrical Data-Quiet-Line Models (95°F/35°C) 60Hz
27
Table 19 Electrical Data-Standard Sound and Ambient Models (95°F/35°C) 50Hz
27
Table 20 Electrical Data-High Ambient Models (105°F/41°C) 50Hz
27
Checklist for Completed Installation
28
Table 21 Electrical Data - Quiet-Line Models (95°F/35°C) 50Hz
28
3 Operation
29
Compressor
29
High Head Pressure
29
Liebert Lee-Temp Flood Back Head Pressure Control
29
Hot Gas Bypass
30
Operation
30
Adjustment
30
Figure 13 Hot Gas Bypass Diagram
31
4 Maintenance
32
General
32
Compressor Failure
32
Electrical Failure-Burnout
32
Mechanical Failure
32
Compressor Replacement
33
Field Charge Verification
34
Table 22 Field Verification Charge
34
5 Troubleshooting
35
Table 23
35
Table 23 Troubleshooting
35
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