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CAS303 Series
Carrier CAS303 Series Manuals
Manuals and User Guides for Carrier CAS303 Series. We have
1
Carrier CAS303 Series manual available for free PDF download: Installation, Start-Up And Service Instructions Manual
Carrier CAS303 Series Installation, Start-Up And Service Instructions Manual (68 pages)
Air-Cooled Condensing Units with R-410A Refrigerant
Brand:
Carrier
| Category:
Accessories
| Size: 7.06 MB
Table of Contents
Table of Contents
1
Safety Considerations
1
Installation Guidelines
2
Replacement/Retrofit
2
R-22 to R-410A Refrigerant
2
Rated Indoor Airflow (Cfm)
2
Identify Factory Options
3
Matching cas Model to Evaporator Coil
3
General
3
Installation
8
Jobsite Survey
8
Step 1 - Plan for Unit Location
8
Step 2 - Complete Pre-Installation Checks
8
Step 3 - Prepare Unit Mounting Support
8
Step 4 - Rig and Mount the Unit
8
Step 5 - Determine Refrigerant Line Sizes
9
Suction Riser
12
Step 6 - Complete Refrigerant Piping
12
Connections
12
Step 7 - Install Accessories
16
Step 8 - Complete Electrical Connections
16
Step 9 - Wind Baffles for Low Ambient
22
Control
22
Pre-Start-Up
22
System Check
22
Turn on Crankcase Heater
22
Preliminary Charge
22
Start-Up
23
Preliminary Checks
23
Start Unit
23
Operating Sequence
29
Base Unit Controls
29
All Units
29
Maintenance
30
(And 30 Days after Initial Start)
30
Seasonal Maintenance
30
Service
31
Refrigeration System
31
Comfort Alert Diagnostic Module
31
Compressor Protection
38
Routine Cleaning of Round-Tube Plate Fin
38
(RTPF) Coils
38
Fastener Torque Values
39
Troubleshooting
39
Guide
41
Appendix B - Wiring Diagrams
42
Appendix C - Low Ambient Option
58
Start-Up Checklist
67
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