Nortek SN42K Installation Instructions Manual

SPLIT SYSTEM AIR CONDITIONER
INSTALLATION INSTRUCTIONS
*SA(1,2)BD4M1 SERIES - (S,R)N18K, (S,R)N24KA, (S,R)N30K, (S,R)N36K, SN42K, SN48K,
& SN60K (1.5, 2, 2.5, 3, 3.5, 4, & 5 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
Connecting Refrigerant Tubing Between the
Indoor & Outdoor Unit ............................................ 4
ELECTRICAL WIRING ........................................... 4
Pre-Electrical Checklist .......................................... 4
Line Voltage ........................................................... 4
Grounding .............................................................. 5
Comfort Alert Diagnostics Module ...................... 5
TM
(Select Models Only) .............................................. 5
24 VAC Power Wiring .......................................... 5
Thermostat Demand Wiring ................................. 5
Interpreting the Diagnostic LED's ........................ 5
LED Description ................................................... 5
Thermostat Connections ........................................ 6
AIR CONDITIONER MAINTENANCE ..................... 6
Panel Removal ....................................................... 6
Panel Installation .................................................... 6
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 ............................... 7
Pre-Start Check List ............................................... 7
Start-Up Procedures .............................................. 7
Air Circulation - Indoor Blower ............................. 7
System Cooling .................................................... 7
System Heating (optional) ................................... 7
REFRIGERANT CHARGING .................................. 7
Charging the Unit in AC mode ............................... 8
If the outdoor temperature is 65 degrees F
or higher: .............................................................. 8
If the outdoor temperature is below 65
degrees F: ............................................................ 8
ELECTRICAL DIAGRAMS & TABLES .................. 9
Figure 5. Wiring Diagram for *SA(1,2)BD4M
Figure 6. Wiring Diagram for *SA(1,2)BD4M1RN
Table 1. Comfort Alert LED Diagnostics .............. 11
Table 2. Module Wiring Troubleshooting ............. 12
INSTALLATION CHECKLIST ................................. 16
REPLACEMENT PARTS ........................................ 16
IMPORTANT
ATTENTION INSTALLERS:
(1.5, 2, 2.5, 3, 3.5, 4, & 5 Ton Units) .... 9
(1.5, 2, 2.5, & 3 Ton Units) .................... 10
13 SEER