Carrier Gemini 38AXQ 12 Series Manuals

Manuals and User Guides for Carrier Gemini 38AXQ 12 Series. We have 1 Carrier Gemini 38AXQ 12 Series manual available for free PDF download: Installation, Start-Up And Service Instructions Manual

Carrier Gemini 38AXQ 12 Series Installation, Start-Up And Service Instructions Manual (48 pages)

Heat Pump Condensing Units with Puron Advance (R-454B) Refrigerant

Brand: Carrier | Category: Heat Pump | Size: 4 MB

Table of Contents
1
Appendix A - Quick Reference Guide - Air Conditioner and Heat Pump with Puron
2
Safety Considerations
2
Electrical Shock Hazard
2
Cut Hazard
2
Detection of Flammable Refrigerants
3
Ignition Source Mitigation
3
Ventilation Requirements
3
Installation Guidelines
3
Installation
3
General
3
Rated Indoor Airflow (Cfm)
3
Installation
8
Jobsite Survey
8
Step 1 - Plan for Unit Location
8
Requirements of A2L Refrigerant Piping
8
Step 2 - Complete Pre-Installation Checks
8
Check Unit Electric Characteristic
8
Un-Crate Unit
8
Inspect Shipment
8
Consider System Requirements
8
Step 3 - Prepare Unit Mounting Support
8
Step 5 - Check Refrigerating Equipment
9
Step 6 - Determine Refrigerant Line Sizes
9
Liquid Lift
12
Suction Riser
12
Step 7 - Complete Refrigerant Piping
12
Connections
12
Check Vertical Separation
12
Provide Safety Relief
12
Refrigerant Line Sizing
12
Risers in Heat Pump Piping Systems
12
Liquid Line Riser
13
Vapor Line Riser
13
Install Filter Drier and Moisture Indicator
13
Install Liquid Line Solenoid Valves
14
Make Piping Connections
14
Evacuation/Dehydration
14
Preliminary Charge
15
A2L Charging Requirements
15
Step 8 - Install Accessories
15
Step 9 - Complete Electrical Connections
15
Field Power Supply
15
Units Without Factory-Installed Disconnect
16
Units with Factory-Installed Disconnect
16
All Units
16
Voltage and Current Balance
16
Convenience Outlets
18
Installing Weatherproof Cover
18
Field Control Wiring
19
Thermostat
19
External Control Devices
19
Step 10 - Wind Baffles for Low Ambient Control
20
Pre-Start-Up
20
System Check
20
Turn on Crankcase Heater
20
Preliminary Charge
20
Start-Up
20
38AXQ Units
20
Preliminary Checks
20
Compressor Rotation
20
Compressor Overload
20
Advanced Scroll Temperature Protection (Astp)
21
Start Unit
21
Adjust Refrigerant Charge
21
Final Checks
21
Operating Sequence
25
Base Unit Controls
25
Indoor (Supply) Fan
25
Cooling, Unit Without Economizer - Two-Stage Units
25
Fan Cycling
25
Cooling, Unit with Economizer
25
Heating
25
Defrost Cycle
25
Supplemental Heat/Emergency Heat
26
Cooling and Heating Shutdown
26
Maintenance
26
Quarterly Inspection  (and 30 Days after Initial Start)
26
Indoor Section
26
Economizer or Outside Air Damper
26
Seasonal Maintenance
26
Air Conditioning
26
Service
27
Refrigeration System
27
Compressor Oil
27
A2L Servicing Requirements
27
Servicing Systems on Roofs with Synthetic Materials
27
Liquid Line Filter Drier
27
Field Refrigerant Access Ports
27
Outdoor Coil Metering Devices
28
Refrigerant System Pressure Access Ports
28
Compressor Protection
30
Compressor Overcurrent
30
Compressor Overtemperature Protection (Ip)
30
Crankcase Heater
30
High Pressure Switch
30
Loss of Charge Switch
30
Outdoor Fan Motor Protection
30
Reversing Valve Control
31
Compressor Control
31
Defrost Thermostat
32
Comfort Alert Diagnostic Module
33
Fastener Torque Values
37
Troubleshooting
37
Appendix B - Wiring Diagrams
40
Appendix C - Low Ambient Option - Factory Installed
43
Preliminary Information
47
Indoor Unit
47
Check Voltage
48

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Carrier Gemini 38AXQ 12 Series Manuals

Carrier Gemini 38AXQ 12 Series Installation, Start-Up And Service Instructions Manual (48 pages)

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