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SPLIT SYSTEM AIR CONDITIONER
INSTALLATION INSTRUCTIONS
*SA3BD4M SERIES - 1SN18K, 1SN24K, 1SN30K, 1SN36K, 1SN42K, 1SN48K (1.5, 2, 2.5, 3,
3.5 & 4 TON) - SINGLE PHASE MODELS
IMPORTANT SAFETY INFORMATION ......................2
AIR CONDITIONER INSTALLATION .........................3
General Information ...................................................3
Before You Install this Unit .........................................3
Locating the Air Conditioner .......................................3
Packaging Removal ...................................................3
Ground Level .............................................................3
Roof Mount ................................................................3
Indoor & Outdoor Unit ................................................4
REFRIGERANT CHARGING ......................................5
Charging the Unit in AC mode ...................................9
or higher: ..................................................................9
degrees F: ................................................................9
ELECTRICAL WIRING ...............................................5
Pre-Electrical Checklist ..............................................6
Line Voltage ...............................................................6
Grounding ..................................................................6
Thermostat Connections ............................................6
AIR CONDITIONER MAINTENANCE .........................7
Panel Removal ...........................................................7
Panel Installation ........................................................7
It is your responsibility to know this product better than your customer. This includes being able to install the product
according to strict safety guidelines and instructing the customer on how to operate and maintain the equipment for
the life of the product. Safety should always be the deciding factor when installing this product and using common
sense plays an important role as well. Pay attention to all safety warnings and any other special notes highlighted in
the manual. Improper installation of the unit or failure to follow safety warnings could result in serious injury, death,
or property damage.
These instructions are primarily intended to assist qualified individuals experienced in the proper installation of this
appliance. Some local codes require licensed installation/service personnel for this type of equipment. Please read all
instructions carefully before starting the installation. Return these instructions to the customer's package for future
reference.
DO NOT DESTROY. PLEASE READ CAREFULLY & KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
START UP & ADJUSTMENTS ...................................8
Pre-Start Check List ...................................................8
Start-Up Procedures ..................................................8
Air Circulation - Indoor Blower .................................8
System Cooling ........................................................8
System Heating (optional) .......................................8
Charging the Unit in AC Mode .................................8
System Heating (optional) .......................................8
Charging the Unit in AC Mode ...................................9
If the outdoor temperature is 65 degrees F
or higher: ..................................................................9
ELECTRICAL DIAGRAMS & TABLES ......................11
Figure 5. Wiring Diagram for *SA3BD4M
INSTALLATION CHECKLIST .....................................12
REPLACEMENT PARTS ............................................12
IMPORTANT
ATTENTION INSTALLERS:
(1.5 - 4 Ton Units) .....................................11
13.4 SEER2
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Summary of Contents for Nortek SA3BD4M Series
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Page 1: Table Of Contents
SPLIT SYSTEM AIR CONDITIONER 13.4 SEER2 INSTALLATION INSTRUCTIONS *SA3BD4M SERIES - 1SN18K, 1SN24K, 1SN30K, 1SN36K, 1SN42K, 1SN48K (1.5, 2, 2.5, 3, 3.5 & 4 TON) - SINGLE PHASE MODELS IMPORTANT SAFETY INFORMATION ......2 START UP & ADJUSTMENTS ........8 Pre-Start Check List ...........8 AIR CONDITIONER INSTALLATION ......3... -
Page 2: Important Safety Information
IMPORTANT SAFETY INFORMATION WARNING: INSTALLER: Please read all instructions before servicing this equipment. Pay attention to all safety warnings and any The information listed below must be followed other special notes highlighted in the manual. Safety markings during the installation, service, and operation are used frequently throughout this manual to designate a of this unit. -
Page 3: Air Conditioner Installation
General Information • For installations that are space constrained, one side of the The *SA3BD4M series air conditioner is designed only unit, adjacent to the service panel, may have its air side for outdoor rooftop or ground level installations. This unit clearance reduced to a minimum of 6 inches. -
Page 4: Connecting Refrigerant Tubing Between The Indoor & Outdoor Unit
The correct 20 ft. expansion device or kit is available for all approved Nortek • A filter dryer is provided with the unit and must be installed listed applications from the parts department. -
Page 5: Refrigerant Charging
• Refer to the Quick Reference Data sheet for additional to the unit before performing any maintenance charging information for this unit with the approved Nortek or service. The unit may have more than one indoor units. For reference, these units are listed in the electrical supply. -
Page 6: Line Voltage
Line Voltage Grounding • A wiring diagram is located on the inside cover of the WARNING: electrical box of the outdoor unit. The installer should become familiar with the wiring diagram before making any electrical connections to the outdoor unit. The unit cabinet must have an uninterrupted or •... -
Page 7: Air Conditioner Maintenance
AIR CONDITIONER MAINTENANCE Panel Removal 1. Remove screws securing the panel. 2. Slide the panel up towards the top pan in order to clear WARNING: the bottom flange from the base pan. See Figure 3. Swing the bottom of the panel out and pull the panel down To prevent electrical shock, personal injury, or to remove it from the unit. -
Page 8: Start Up & Adjustments
START UP & ADJUSTMENTS Start-Up Procedures The thermostat's function mode should be set to OFF and Pre-Start Check List the fan mode should be set to AUTO. Close all electrical √ Verify that the outdoor unit is installed according to all disconnects to energize the system. -
Page 9: Charging The Unit In Ac Mode
Charging the Unit in AC mode If the outdoor temperature is 65 degrees F or higher: After completing the refrigerant line connections, leak checking the system, and evacuating the indoor section and all line connections (using proper methods), perform the following steps: 1. -
Page 10: If The Outdoor Temperature Is Below 35 Degrees F
If the outdoor temperature is below 35 degrees F: After completing the refrigerant line connections, leak checking the system, and evacuating the indoor section and all line connections (using proper methods), perform the following steps: 1. Determine the recommended charge addition (if applicable) for the system being installed. -
Page 11: Electrical Diagrams & Tables
ELECTRICAL DIAGRAMS & TABLES WIRING DIAGRAM Split System Air Conditioner (Outdoor Section) Single Phase NOTES: 1. Disconnect all power before servicing. 1. Couper le courant avant de faire letretien. 2. For supply connections use copper conductors only. 2. Employez uniquement des conducteurs en cuivre. 3. -
Page 12: Installation Checklist
Stage-1 Suction Pressure (low side): Fan Motor COMPONENTS: Blower Assembly Fan Grille Cabinet Panels Filter/Driers Expansion Valves Specifications & illustrations subject to change without notice or incurring obligations (02/22). 10411190 O’Fallon, MO, © Nortek Global HVAC LLC 2022. All Rights Reserved. (NEW)
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