Nortek SA2BD4M1SN Series Installation Instructions Manual

SPLIT SYSTEM AIR CONDITIONER
INSTALLATION INSTRUCTIONS
SA2BD4M1SN - 36, 48, & 60 (3, 4, & 5 TON) SERIES - 3-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 ...................... 3
General Information ................................................ 3
Before You Install this Unit ...................................... 3
Locating the Air Conditioner .................................... 3
Packaging Removal ................................................ 3
Ground Level .......................................................... 3
Roof Mount ............................................................. 3
Connecting Refrigerant Tubing Between the
Indoor & Outdoor Unit ............................................. 3
ELECTRICAL WIRING ............................................ 4
Pre-Electrical Checklist ........................................... 4
Line Voltage ............................................................ 4
Grounding ............................................................... 4
Thermostat Connections ......................................... 4
Unbalanced 3-Phase Supply Voltage ..................... 5
Reverse Rotation Verification ................................. 5
AIR CONDITIONER MAINTENANCE ...................... 5
START UP & ADJUSTMENTS ................................ 6
Pre-Start Check List ................................................ 6
Start-Up Procedures ............................................... 6
Air Circulation - Indoor Blower .............................. 6
System Cooling ..................................................... 6
System Heating (optional) .................................... 6
REFRIGERANT CHARGING ................................... 6
Charging the Unit in AC mode ................................ 7
If the outdoor temperature is 65 degrees F
or higher: ............................................................... 7
If the outdoor temperature is below 65
degrees F: ............................................................. 7
WIRING DIAGRAMS ................................................ 8
Figure 2. Wiring Diagram for *SA2BD4M1SN
(3, 4, & 5 Ton) Units .............................. 8
INSTALLATION CHECKLIST .................................. 12
REPLACEMENT PARTS ......................................... 12
13 SEER