Nortek SA3MD4M1-RN24K User Manual

SPLIT SYSTEM AIR CONDITIONER FOR MANUFACTURED HOUSING
*SA3MD4M1 - RN24K, RN30K, SN36K, SN42K, & SN48K
(2, 2.5, 3, 3.5, & 4 TON) SERIES - SINGLE PHASE MODELS
13.4 SEER2
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.
INSTALLATION INSTRUCTIONS
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
Connecting Refrigerant Tubing Between the
Indoor & Outdoor Unit ............................................ 3
ELECTRICAL WIRING ...........................................4
Pre-Electrical Checklist ..........................................4
Line Voltage ........................................................... 4
Grounding ..............................................................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 ................................................... 7
If the outdoor temperature is 65 degrees F or
higher: ..................................................................7
If the outdoor temperature is below 65
degrees F: ............................................................7
ELECTRICAL INFORMATION ...............................8
Figure 4. Wiring Diagram for *SA3MD4M1SN .......8
Figure 5. Wiring Diagram for *SA3MD4M1RN ....... 9
INSTALLATION CHECKLIST .................................12

Nortek SA3MD4M1-RN24K Specifications

General

Cooling Capacity	24000 BTU
Refrigerant	R410A
Indoor Unit Dimensions (HxWxD)	315 x 970 x 235 mm
Type	Split System
Power Supply	220V/60Hz/1Ph
Operating Temperature (Cooling)	64°F to 115°F (18°C to 46°C)

Summary

Important Safety Information

Air Conditioner Installation

General Information

Overview of unit design, capabilities, and maintenance recommendations.

Before You Install this Unit

Pre-installation checks including load calculation, insulation, and power supply.

Packaging Removal

Instructions for safely removing the unit from its packaging.

Locating the Air Conditioner

Guidance on selecting the optimal location for the outdoor unit.

Clearance Requirements

Specifies minimum clearances needed around the unit for airflow and access.

Ground Installations

Requirements for installing the unit on a solid, level base above grade.

Roof Installation

Guidelines for securely mounting the unit on a roof structure.

Accessory Mounting Kits

Information on available kits for alternative mounting methods.

Connecting Refrigerant Tubing Between the Indoor & Outdoor Unit

Detailed instructions for connecting refrigerant lines with safety precautions.

Electrical Wiring

Pre-Electrical Checklist

Verification steps before making electrical connections.

Line Voltage

Instructions for connecting the unit to the main power supply.

Grounding

Critical requirements for proper electrical grounding of the unit.

Thermostat Connections

Procedures for connecting the thermostat to the control circuit.

Low Voltage Connections

Guidelines for connecting the 24 VAC control circuit.

Start Up & Adjustments

Pre-Start Check List

A comprehensive checklist before initial system startup.

Start-Up Procedures

Step-by-step guide for initiating system operation.

Air Circulation - Indoor Blower

How to check and balance airflow from the indoor blower.

System Cooling

Steps to verify and set up the cooling operation.

System Heating (optional)

Instructions for verifying optional heating system operation.

Air Conditioner Maintenance

Panel Removal

Instructions for removing access panels for servicing.

Panel Installation

Instructions for properly reinstalling access panels.

Refrigerant Charging

Charging the Unit

Step-by-step guide for adding refrigerant to the system.

If the outdoor temperature is 65 degrees F or higher:

Specific charging steps when outdoor temperature is above 65°F.

If the outdoor temperature is below 65 degrees F:

Specific charging steps when outdoor temperature is below 65°F.

Wiring Diagram for *SA3MD4M1SN

Wiring Diagram for *SA3MD4M1RN

Installation Checklist