Carrier CHS072-121 Manuals

Manuals and User Guides for Carrier CHS072-121. We have 1 Carrier CHS072-121 manual available for free PDF download: Installation Instructions Manual

Carrier CHS072-121 Installation Instructions Manual (52 pages)

Heat Pump Condensing Units with R-410A Refrigerant

Brand: Carrier | Category: Air Conditioner | Size: 4.4 MB

Table of Contents
1
Safety Considerations
2
General
2
Rated Indoor Airflow (Cfm)
2
Installation Guideline
3
Replacement /Retrofit - R-22 to R-410A
3
Refrigerant
3
Acid Test
3
Evaluate Existing Refrigerant Piping
3
Installation
3
Installation
8
Jobsite Survey
8
Step 1 - Plan for Unit Location
8
Step 2 - Complete Pre-Installation Checks
8
Check Unit Electric Characteristic
8
Uncrate Unit
8
Inspect Shipment
8
Consider System Requirements
8
Step 3 - Prepare Unit Mounting Support
8
Slab Mount
8
Check Vertical Separation
10
Provide Safety Relief
10
Refrigerant Line Sizing
10
Risers in Heat Pump Piping Systems
10
Liquid Line Riser
10
Vapor Line Riser
10
Install Filter Drier and Moisture Indicator
10
Install Liquid Line Solenoid Valves
11
Make Piping Connections
11
Evacuation/Dehydration
12
Preliminary Charge
12
Step 6 - Install Accessories
12
Step 7 - Complete Electrical Connections
12
Field Power Supply
12
Units Without Factory-Installed Disconnect
13
Units with Factory-Installed Disconnect
13
All Units
13
Voltage and Current Balance
13
Convenience Outlets
14
Installing Weatherproof Cover
14
Field Control Wiring
15
Thermostat
15
External Control Devices
15
Step 8 - Wind Baffles for Low Ambient
17
Control
17
Pre-Start-Up
17
System Check
17
Turn on Crankcase Heater
17
Preliminary Charge
17
Start-Up
17
CHS Units
17
Preliminary Checks
17
Compressor Rotation
17
Compressor Overload
18
Advanced Scroll Temperature Protection (Astp)
18
Start Unit
18
Adjust Refrigerant Charge
18
Final Checks
18
Operating Sequence
21
Base Unit Controls
21
Indoor (Supply) Fan
21
Cooling, Unit Without Economizer - Two-Stage Units
21
Fan Cycling
22
Cooling, Unit with Economizer
22
Heating
22
Defrost Cycle
22
Supplemental Heat/Emergency Heat
23
Cooling and Heating Shutdown
23
Routine System Maintenance
23
Quarterly Inspection
23
(And 30 Days after Initial Start)
23
Indoor Section
23
Outdoor Section
23
Economizer or Outside Air Damper
23
Maintenance
23
Seasonal Maintenance
23
Service
24
Refrigeration System
24
Compressor Oil
24
Servicing Systems on Roofs with Synthetic Materials
24
Liquid Line Filter Drier
24
Field Refrigerant Access Ports
25
Outdoor Coil Metering Devices
26
Refrigerant System Pressure Access
26
Ports
26
Compressor Protection
27
Compressor Overcurrent
27
Compressor Overtemperature Protec
27
Crankcase Heater
27
High Pressure Switch
27
Loss of Charge Switch
27
Outdoor Fan Motor Protection
27
Control Circuit, 24-V
27
Commercial Defrost Control
27
Reversing Valve Control
29
Compressor Control
29
Defrost
29
Defrost Thermostat
29
Defrost Speedup Functions
30
Comfort Alert Diagnostic Module
31
Outdoor Fans
33
Lubrication
33
Fan Motors
33
Compressor
33
Outdoor Coil Maintenance and Cleaning
33
Recommendation
33
Remove Surface Loaded Fibers
33
Periodic Clean Water Rinse
33
Routine Cleaning of Indoor Coil Surfaces
34
Fastener Torque Values
35
Troubleshooting
36
Appendix A - Air Conditioner and Heat Pump with R-410A - Quick Reference Guide
37
Appendix B - Wiring Diagram List
37
Appendix C - Low Ambient Option - Factory Installed
45
Start-Up Checklist
51

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Carrier CHS072-121 Installation Instructions Manual (52 pages)

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