Stulz CeilAir CW - Page 6

6 OCH0006F08/13/2024
CEILAIR
®
CW & DX IOM
CONTENTS
4.3 Field Service ................................ 75
4.3.1 Leak Detection ................................75
4.3.2 Leak Repair ......................................75
4.3.3 Refrigerant Piping...........................75
4.3.4 General Common Repairs/
Component Replacement ........................75
4.3.4.1 Compressor Failure ............................ 75
4.3.4.2 Standard Cleanout Procedure..........76
4.3.4.3 Burn-Out/Acidic Cleanup Procedure
.............................................................................77
4.3.4.4 Humidifier Cylinder Replacement ...78
4.3.4.5 Air Filter Replacement .......................78
5.0 PRODUCT SUPPORT ..................... 79
5.1 Instructions for Online
Documentation Access ..................... 79
5.2 Technical Support ....................... 79
5.3 Obtaining Warranty Parts ........... 80
5.4 Obtaining Spare/Replacement
Parts ................................................... 80
Appendix A. OHS Preventive
Maintenance Inspection Checklist ..... 81
Figures
Figure 1. ATech Digital Thermostats ........ 11
Figure 2. E
2
Microprocessor Controller and
Display ......................................................... 11
Figure 3. CeilAir OHS032AR (Access
Panels Removed) ........................................ 15
Figure 4. Free Cooling Diagram ................. 18
Figure 5. Alternate Water Source Diagram 20
Figure 6. Typical Installation ...................... 23
Figure 7. ATech Controller Installation .... 24
Figure 8. Spot Cooler Grille ........................ 25
Figure 9. Ducted System Typical Air
Patterns ...................................................... 26
Figure 10. Temperature Sensor for ATech 27
Figure 11. Temperature/Humidity Sensor
for E
2
Controller .......................................... 28
Figure 12. Spot Water Detector................. 29
Figure 13. Cable Water Detector ............... 30
Figure 14. Condensate Pump ................... 37
Figure 15. Sample Nameplate ................... 38
Figure 16. ATech 1.1 (top) and 1.2 (bottom)
Controller Wiring Contacts ........................ 41
Figure 17. ATech 1.1 Control Wiring ........ 42
Figure 18. ATech 1.2 Control Wiring ........ 42
Figure 19. Interconnection Field Wiring
Remote Condenser ..................................... 43
Figure 20. Interconnection Field Wiring
Remote Condensing Unit (RCU) ................ 43
Figure 21. Interconnection Field Wiring
Remote Condensing Unit with Dual
Compressors .............................................. 44
Figure 22. Interconnection Field Wiring
Glycol Systems ........................................... 44
Figure 23. Belt Drive Blower ...................... 60