(Mar, 2012)
Compact CWE Series Installation, Operation & Maintenance Manual
ir Technology Systems, Inc.
1.0 Introduction .......................................1-1
1.1 General ......................................................1-1
1.2 Product Description ....................................1-1
1.3 Product Warranty .......................................1-2
1.4 Safety .........................................................1-3
1.4.1 General ......................................................1-3
1.4.2 Safety Summary ........................................1-3
1.5 General Design ..........................................1-5
1.5.1 Electric Box Access ....................................1-6
1.5.2 Circuit Breakers/ Motor Start Protectors ....1-6
1.5.3 Heaters ......................................................1-6
1.5.4 Coils ...........................................................1-6
1.5.5 EC Fans .....................................................1-6
1.5.6 Temperature/ Humidity Sensor ..................1-6
1.6 Optional Equipment ...................................1-6
1.6.1 Humidifi er ...................................................1-6
1.6.2 Condensate Pump .....................................1-6
1.6.3 Smoke Detector .........................................1-7
1.6.4 Firestat .......................................................1-7
1.6.5 Auto Transfer Switching .............................1-7
2.0 Installation .........................................2-1
2.1 Receiving the Equipment. ..........................2-1
2.2 Site Preparation .........................................2-1
2.2.1 Conditioned Space .....................................2-1
2.3 Rigging .......................................................2-2
2.4 Mounting/Placement ..................................2-2
2.5 Air Distribution Connection ........................2-3
2.5.1 Upfl ow Confi guration Air Patterns ..............2-3
2.5.2 Downfl ow Confi guration Air Patterns .........2-4
2.6 Optional Equipment (Field Installed) ..........2-5
2.6.1 Floor Stand ................................................2-5
2.6.2 Deploying Underfl oor EC Fans ..................2-5
2.6.3 Plenum Box ................................................2-6
2.6.4 Remote Display ..........................................2-7
2.6.5 Condensate Pump .....................................2-7
2.6.6 Remote Temperature/Humidity Sensor ......2-7
2.6.6.1 Types of Control .........................................2-7
2.6.7 Remote Water Detector .............................2-8
2.7 Piping Connections ....................................2-9
2.7.1 Chilled Water/Hot Water ............................2-9
TABLE OF CONTENTS
2.7.2 Condensate Drain ......................................2-9
2.7.2.1 Gravity Drain ..............................................2-9
2.7.2.2 Condensate Pump ...................................2-10
2.7.3 Humidifi er .................................................2-10
2.8 Utility Connections ...................................2-11
2.8.1 Main Power ..............................................2-11
2.8.2 Controls ....................................................2-12
2.8.3 Optional Equipment .................................2-13
2.8.3.1 Remote Temperature/Humidity Sensor ....2-13
2.8.3.2 Remote Water Detector ...........................2-13
2.9 System Settings and Adjustments ...........2-13
2.9.1 Chilled Water Circuit ................................2-13
2.9.2 EC Fan(s) .................................................2-13
3.0 Start-Up/Commissioning ..................3-1
3.1 Operation ...................................................3-1
3.2 Step by Step Start-Up Instructions .............3-1
3.3 Microprocessor Controller
Programming .............................................3-1
4.0 Maintenance/Repairs ........................4-1
4.1 Periodic General Maintenance ...................4-1
4.1.1 A/C Unit ......................................................4-1
4.1.1.1 Filter ...........................................................4-1
4.1.1.2 Fan ............................................................4-1
4.1.1.3 Drain Pan ...................................................4-1
4.1.1.4 Coils ...........................................................4-1
4.1.1.5 Heat/Reheat ...............................................4-1
4.1.1.6 Humidifi er ...................................................4-1
4.1.1.7 Condensate Pump .....................................4-2
4.2 Troubleshooting .........................................4-2
4.3 Field Service ..............................................4-4
4.3.1 General Common Repairs/
Component Replacement ..........................4-4
4.3.1.1 Cooling System ..........................................4-4
4.3.1.2 Leaks .........................................................4-4
4.3.1.3 Humidifi er Cylinder Replacement ..............4-4
4.3.1.4 Filter Replacement .....................................4-4
5.0 Product Support ................................5-1
5.1 Technical Support ......................................5-1
5.2 Obtaining Warranty Parts ...........................5-1
5.3 Obtaining Spare/Replacement Parts .........5-1
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