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CyberAir DX Series
Stulz CyberAir DX Series User Manual
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Cyber
Air
®
DX
Installa
tion, Operation and M
aintenance M
anual
Perime
ter
Moun
ted Precision
Air
Conditioners
21 kW
- 105 kW / 60 H
z
2
Table of Contents
Table of Contents
3
Introduction
6
General
6
Product Description
6
Safety
7
General
7
Safety Summary
7
General Design
9
Internal Layout - Upflow Model
10
Figure 1 Typical Internal Layout- Upflow
10
Internal Layout - Downflow Model
11
Electric Box Access
11
Circuit Breakers/Motor Start Protectors
11
Compressors
11
Figure 2 Typical Internal Layout- Downflow
11
Coils
12
1!!!! EC Fans
12
Temperature/Humidity Sensor
12
Heaters
12
Optional Equipment
12
Humidifier
12
Condensate Pump
13
Water Detector
13
1.5.4 Smoke Detector
13
Firestat
13
Auto Power Transfer Switching
13
Dual Cooling Circuits
13
Figure 3 Auto Transfer Disconnect Switches
13
Tandem Compressor Option
14
Figure 4 Tandem Compressor Configuration
14
Free-Cooling Operation
15
Alternate Water Source Operation
16
Installation
17
Receiving the Equipment
17
Site Preparation
17
Conditioned Space
17
Figure 7 Recommended Installation Clearance
17
Rigging
18
Mounting/Placement
18
Figure 9 Typical CFD (Downflow) Installation
19
Air Distribution Connection
20
Upflow Configuration Air Patterns
20
Figure 10 Upflow Configuration Air Patterns
20
Downflow Configuration Air Patterns
21
Optional Equipment (Field Installed)
21
Floor Stands
21
Figure 11 Downflow Configuration Air Patterns
21
Plenum Box
23
Figure 12 Plenum Installation
23
Condensate Pump
24
Types of Control
24
2.6.4.1 Remote Temperature/Humidity Sensor
24
Figure 13 Temperature/Humidity Sensor Location
24
Remote Water Detector
25
2.7 Piping Connections
25
Refrigerant Piping
25
Water/Glycol and Hot Water Piping
27
Condensate Drain
27
2.7.3.1 Gravity Drain
27
Condensate Pump
28
Humidifier
28
Figure 14 Field Installed Condensate Pump
28
2.8 Utility Connections
29
Main Power
29
Figure 15 Sample Nameplate
29
Figure 16 Electric Box
30
Optional Equipment
31
2.8.2.1 Remote Temperature/Humidity Sensor
31
2.8.2.2 Remote Water Detector
31
Interconnecting Remote Equipment
31
Figure 18 Field Wiring Air Cooled Systems
32
2.9 System Charging Procedures
33
Water-Water/Glycol Systems
33
Refrigerant Charging
33
Estimating Refrigerant Charge
33
Preparing System for Charging
35
Refrigerant Charging Procedures
36
2.9.6 Refrigerant Characteristics
38
Settings and Adjustments
38
Start-Up/Commissioning
41
Operation
41
Step by Step Start-Up Instructions
41
Microprocessor Controller Programming
41
Periodic General Maintenance
42
Precision A/C Unit
42
Humidifier
43
Condensate Pump
43
Condenser
43
Troubleshooting
43
Field Service
47
Leak Detection
47
Leak Repair
47
Refrigerant Piping
47
General Common Repairs/Component Replacement
47
Compressor Failure
47
Standard Cleanout Procedure
48
Burn-Out Acidic Cleanout Procedure
48
Humidifier Cylinder Replacement
48
Filter Replacement
49
Product Support
50
5.2 Technical Support
50
5.3 Obtaining Warranty Parts
50
Obtaining Spare/Replacement Parts
51
Appendix A -Forms
52
Checklist for Completed Installation
52
Appendix B- Glossary
55
5
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Stulz CyberAir DX Series Specifications
General
Brand
Stulz
Model
CyberAir DX Series
Category
Air Conditioner
Language
English
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