Carrier Gemini 38AXDT/U14 Manuals

Manuals and User Guides for Carrier Gemini 38AXDT/U14. We have 1 Carrier Gemini 38AXDT/U14 manual available for free PDF download: Installation, Start-Up And Service Instructions Manual

Carrier Gemini 38AXDT/U14 Installation, Start-Up And Service Instructions Manual

Carrier Gemini 38AXDT/U14 Installation, Start-Up And Service Instructions Manual (64 pages)

Air-Cooled Condensing Units with Puron Advance (R-454B) Refrigerant

Brand: Carrier | Category: Air Conditioner | Size: 5 MB

Table of Contents

Table of Contents
1
Safety Considerations
1
Detection of Flammable Refrigerants
2
Ignition Source Mitigation
2
Ventilation Requirements
2
Installation Guidelines
2
General
2
Rated Indoor Airflow (Cfm)
2
Matching 38AX Model to Evaporator Coil
3
Installation
6
Jobsite Survey
6
Step 1 - Plan for Unit Location
6
Step 2 - Complete Pre-Installation Checks
7
Step 3 - Prepare Unit Mounting Support
7
Step 4 - Rig and Mount the Unit
7
Step 5 - Check Refrigerating Equipment
7
Step 6 - Determine Refrigerant Line Sizes
7
Liquid Lift
13
Step 7 - Complete Refrigerant Piping
13
Connections
13
Make Piping Connections
16
Preliminary Charge
16
Step 8 - Install Accessories
17
Step 9 - Complete Electrical Connections
17
Units with Factory-Installed Disconnect
17
Units Without Factory-Installed Non-Fused Disconnect
17
Convenience Outlets
18
Field Control Wiring
19
External Devices
20
Step 10 - Wind Baffles for Low Ambient Control
22
Pre-Start-Up
22
System Check
22
Turn on Crankcase Heater
22
Preliminary Charge
22
Start-Up
23
Preliminary Checks
23
Compressor Overload
23
Start Unit
24
Adjust Refrigerant Charge
24
Final Checks
24
Operating Sequence
29
Base Unit Controls
29
All Units
29
Quarterly Inspection (and 30 Days after  Initial Start)
30
Seasonal Maintenance
30
Air Conditioning
30
Maintenance
30
Service
31
Refrigeration System
31
Servicing Systems on Roofs with Synthetic Materials
31
Liquid Line Filter Drier
31
Comfort Alert Diagnostic Module
32
Compressor Protection
35
Routine Cleaning of Round-Tube Plate Fin (RTPF)
35
Coils
35
Fastener Torque Values
36
Troubleshooting
36
Evacuation, Removal, and Recovery
39
Decommissioning
39
Appendix A - Air Conditioner and Heat Pump with Puron Advance™ - Quick Reference Guide
40
Appendix B - Wiring Diagrams
41
Operation
56
Appendix C - Low Ambient Option
56
Start-Up Checklist
63

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