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SPLIT SYSTEM AIR CONDITIONER
INSTALLATION INSTRUCTIONS
*SA3BE4M - 1SN18K, 1SN24K, 1SN30K, 1SN36K, 1SN42K, 1SN48K, & 2SN60KA
(1.5, 2, 2.5, 3, 3.5, 4, & 5 TON) SERIES - SINGLE PHASE MODELS
IMPORTANT
ATTENTION INSTALLERS:
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.
IMPORTANT SAFETY INFORMATION .................. 2
AIR CONDITIONER INSTALLATION ..................... 2
General Information ............................................... 2
Before You Install this Unit ..................................... 2
Packaging Removal ............................................... 3
Locating the Air Conditioner ................................... 3
Clearance Requirements ....................................... 3
Ground Installations ............................................... 3
Roof Installation ..................................................... 3
Accessory Mounting Kits ........................................ 3
Indoor & Outdoor Unit ............................................ 3
ELECTRICAL WIRING ........................................... 4
Pre-Electrical Checklist .......................................... 4
Line Voltage ........................................................... 4
Grounding .............................................................. 5
Thermostat Connections ........................................ 5
Low Voltage Connections ...................................... 5
START UP & ADJUSTMENTS ............................... 5
Pre-Start Check List ............................................... 5
Start-Up Procedures .............................................. 5
Air Circulation - Indoor Blower ............................. 5
System Cooling .................................................... 5
System Heating (optional) ................................... 5
AIR CONDITIONER MAINTENANCE ..................... 6
Panel Removal ....................................................... 6
Panel Installation .................................................... 6
REFRIGERANT CHARGING .................................. 7
Charging the Unit in AC mode ............................... 7
higher: .................................................................. 7
degrees F: ............................................................ 7
ELECTRICAL INFORMATION ............................... 8
Figure 4. Wiring Diagram for *SA3BE4M
(1.5 - 4 Ton Units) ................................................ 8
Figure 5. Wiring Diagram for *SA3BE4M
(5 Ton Units) ........................................................ 9
INSTALLATION CHECKLIST ................................. 12
REPLACEMENT PARTS ........................................ 12
14.3 SEER2
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Table of Contents
Related Manuals for Nortek SA3BE4M-1SN18K Series
Summary of Contents for Nortek SA3BE4M-1SN18K Series
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Page 1: Table Of Contents
SPLIT SYSTEM AIR CONDITIONER 14.3 SEER2 INSTALLATION INSTRUCTIONS *SA3BE4M - 1SN18K, 1SN24K, 1SN30K, 1SN36K, 1SN42K, 1SN48K, & 2SN60KA (1.5, 2, 2.5, 3, 3.5, 4, & 5 TON) SERIES - SINGLE PHASE MODELS IMPORTANT IMPORTANT SAFETY INFORMATION ....2 AIR CONDITIONER INSTALLATION ..... 2 General Information .......... -
Page 2: Important Safety Information
IMPORTANT SAFETY INFORMATION CAUTION: INSTALLER: Please read all instructions before servicing this equipment. Pay attention to all safety warnings and any This unit uses refrigerant R-410A. DO NOT use other special notes highlighted in the manual. Safety markings are used frequently throughout this manual to designate a any other refrigerant in this unit. -
Page 3: Packaging Removal
√ Check the electrical supply and verify the power supply • Overhead obstructions (Figure 1), poorly ventilated areas, is adequate for unit operation. The system must be wired and areas subject to accumulation of debris should be and provided with circuit protection in accordance with avoided. -
Page 4: Electrical Wiring
ELECTRICAL WIRING CAUTION: WARNING: When performing brazing operations always protect the system components and seals from ELECTRICAL SHOCK OR FIRE HAZARD the possibility of heat damage. Remove all To avoid risk of electrical shock, personal injury, caps, plugs and Schrader valve cores on piping or death, disconnect all electrical power to the unit system components just prior to assembly and before performing any maintenance or service. -
Page 5: Grounding
√ Verify that the power supplied by branch circuits for both • Provide power supply for the unit in accordance with the the indoor and outdoor equipment is: unit wiring diagram, and the unit rating plate. Connect the • the proper voltage for the equipment, and line-voltage leads to the terminals on the contactor inside •... -
Page 6: Air Conditioner Maintenance
AIR CONDITIONER MAINTENANCE WARNING: To prevent electrical shock, personal injury, or death, disconnect all electrical power to the unit before performing any maintenance or service. The unit may have more than one electrical supply. Proper maintenance is important to achieve optimum performance from the air conditioner. -
Page 7: Refrigerant Charging
• Refer to the Quick Reference Data sheet for additional in the table then REMOVE refrigerant. charging information for this unit with the approved Nortek • If your measured superheat at the suction valve indoor units. For reference, these units are listed in the... -
Page 8: Electrical Information
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 9 BLACK BLUE Figure 5. Wiring Diagram for *SA3BE4M (5 Ton Units)
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Page 12: Installation Checklist
• Blower Assembly • Fan Grille • Cabinet Panels • Filter/Driers • Expansion Valves Specifications & illustrations subject to change without notice or incurring obligations (12/22). 10443620 O’Fallon, MO, © Nortek Global HVAC LLC 2022. All Rights Reserved. (replaces 1041111A)