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SPLIT SYSTEM AIR CONDITIONER
INSTALLATION INSTRUCTIONS
*SA4BE5M - 1SN18K, 1SN24K, 1SN30K, 1SN36K, 1SN42K, 1SN48K, & 1SN60K
(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
GENERAL REQUIREMENTS ................................. 3
Detecting Leaks of Flammable Refrigerants .......... 4
Removing Refrigerant and Evacuation .................. 4
AIR CONDITIONER INSTALLATION ..................... 4
General Information ............................................... 4
Before You Install this Unit ..................................... 4
Packaging Removal ............................................... 4
Locating the Air Conditioner ................................... 4
Clearance Requirements ....................................... 5
Ground Installations ............................................... 5
Roof Installation ..................................................... 5
Accessory Mounting Kits ........................................ 5
Indoor & Outdoor Unit ............................................ 5
ELECTRICAL WIRING ........................................... 6
Pre-Electrical Checklist .......................................... 6
Line Voltage ........................................................... 6
Grounding .............................................................. 6
Thermostat Connections ........................................ 7
Low Voltage Connections ...................................... 7
START UP & ADJUSTMENTS ............................... 7
Pre-Start Check List ............................................... 7
Start-Up Procedures .............................................. 7
Air Circulation - Indoor Blower ............................. 7
Indoor Unit Leak Detection .................................. 7
System Cooling .................................................... 7
System Heating (optional) ................................... 7
AIR CONDITIONER MAINTENANCE ..................... 7
Panel Removal ....................................................... 8
Panel Installation .................................................... 8
REFRIGERANT CHARGING .................................. 8
Charging the Unit in AC mode ............................... 9
higher: .................................................................. 9
degrees F: ............................................................ 9
ELECTRICAL INFORMATION ............................... 10
Figure 4. Wiring Diagram for *SA4BE5M
(1.5 - 4.0 Ton Units) ............................................. 10
Figure 5. Wiring Diagram for *SA4BE5M
(5 Ton Units) ........................................................ 11
REFRIGERANT RECOVERY ................................. 12
DECOMMISSIONING .............................................. 12
INSTALLATION CHECKLIST ................................. 16
REPLACEMENT PARTS ........................................ 16
14.3 SEER2
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Summary of Contents for Nortek SA4BE5M-1SN18K
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Page 1: Table Of Contents
SPLIT SYSTEM AIR CONDITIONER 14.3 SEER2 INSTALLATION INSTRUCTIONS *SA4BE5M - 1SN18K, 1SN24K, 1SN30K, 1SN36K, 1SN42K, 1SN48K, & 1SN60K (1.5, 2, 2.5, 3, 3.5, 4, & 5 TON) SERIES - SINGLE PHASE MODELS IMPORTANT IMPORTANT SAFETY INFORMATION ....2 GENERAL REQUIREMENTS ......... 3 Detecting Leaks of Flammable Refrigerants .. -
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 *SA4BE5M split system air conditioners are other special notes highlighted in the manual. Safety markings are used frequently throughout this manual to designate a shipped charged with R-454B refrigerant and degree or level of seriousness and should not be ignored. -
Page 3: General Requirements
GENERAL REQUIREMENTS o The following checks shall be applied to installations using FLAMMABLE REFRIGERANTS: • The installer must comply with all local codes and • the actual refrigerant charge is in accordance with regulations which govern the installation of this type of the room size within which the refrigerant containing equipment. -
Page 4: Detecting Leaks Of Flammable Refrigerants
AIR CONDITIONER INSTALLATION • Follow all precautions in the literature, on tags, and on labels provided with the equipment. Read and thoroughly General Information understand the instructions provided with the equipment The *SA4BE5M series air conditioner is designed only prior to performing the installation and operational checkout for outdoor rooftop or ground level installations. -
Page 5: Clearance Requirements
Roof Installation WALL The unit may only be installed on a structure that is capable of supporting the total weight of the unit and its anchorage. 12” (30 cm) The support for the base of the unit may not slope more than 1/8 inch per foot. -
Page 6: Electrical Wiring
√ If replacing an existing unit, verify that the: current wiring, • The maximum recommended interconnecting refrigerant unit disconnect and circuit breaker is properly sized and line lengths is 75 ft. and the vertical elevation difference rated for the new units requirements. Verify that information between the indoor and outdoor sections should not exceed with the MCA and MOP values on the unit nameplate. -
Page 7: Thermostat Connections
This unit must be electrically grounded in accordance with Start-Up Procedures local codes or, in the absence of local codes, with the National The thermostat's function mode should be set to OFF and Electrical Code (ANSI/NFPA 70) or the CSA C22.1 Electrical the fan mode should be set to AUTO. -
Page 8: Panel Removal
• Inspect the condensate drains in the unit's basepan and the outdoor coil at the beginning of each cooling season. Remove any debris. Clean the outdoor coil and louvers as necessary using a mild detergent and water. Rinse thoroughly with water. •... -
Page 9: Charging The Unit In Ac Mode
GREATER THAN the recommended superheat • Refer to the Quick Reference Data sheet for additional value in the table then ADD refrigerant. charging information for this unit with the approved Nortek For TXV systems: indoor units. For reference, these units are listed in the AHRI Directory with all approved combinations of indoor •... -
Page 10: Wiring Diagram
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 11 Figure 5. Wiring Diagram for *SA4BE5M (5 Ton Units)
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Page 12: Refrigerant Recovery
REFRIGERANT RECOVERY • It is recommended good practice that all refrigerants are recovered when possible. • Before decommissioning the system: WARNING: • Become familiar with the equipment and its operation. • Take a sample of oil and refrigerant in case analysis is Recovering refrigerant involves breaking into the required prior to re-use of recovered refrigerant. -
Page 16: Installation Checklist
COMPONENTS: • Blower Assembly • Fan Grille • Cabinet Panels • Filter/Driers • Expansion Valves 10451010 Specifications & illustrations subject to change without notice or incurring obligations (11/23). O’Fallon, MO, © Nortek Global HVAC LLC 2023. All Rights Reserved. (NEW)
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