Nortek FS4BD-KA Installation Instructions Manual

Split SyStem air conditioner
inStallation inStructionS
S4Bd SerieS - 018, 024, 030, 036, 042, 048, & 060 (1.5, 2, 2.5, 3, 3.5, 4, & 5 ton)
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
Comfort Alert Diagnostics Module ..................... 5
TM
24VAC Power Wiring ........................................... 5
Thermostat Demand Wiring ................................ 5
Interpreting the Diagnostic LED's ....................... 5
LED Description .................................................. 6
Grounding ............................................................. 6
Thermostat Low / Voltage Connections ................. 6
air conditioner maintenance .................... 6
Startup & adjuStmentS ............................... 7
Pre - Start Checklist .............................................. 7
Start-up Procedures .............................................. 7
Air Circulation - Indoor Blower .............................. 7
System Cooling ..................................................... 7
System Heating ..................................................... 7
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 furnace
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.
Refrigerant Charging ............................................. 7
Charging the Unit in AC Mode with
Outdoor Temperatures Above 55° F ...................... 8
Application Notes for Using Charging Charts ....... 8
S4Bd charging chartS ................................. 8
Figure 3. Charging Chart for 1.5 Ton Units .......... 8
Figure 4. Charging Chart for 2 Ton Units ............. 9
Figure 5. Charging Chart for 2.5 Ton Units .......... 9
Figure 6. Charging Chart for 3 Ton Units ........... 10
Figure 7. Charging Chart for 3.5 Ton Units ........ 10
Figure 8. Charging Chart for 4 Ton Units ........... 11
Figure 9. Charging Chart for 5 Ton Units ........... 11
S4Bd charging taBleS ................................. 12
Table 3. Charging Table for 1.5 Ton Units .......... 12
Table 4. Charging Table for 2 Ton Units ............. 12
Table 5. Charging Table for 2.5 Ton Units .......... 13
Table 6. Charging Table for 3 Ton Units ............. 13
Table 7. Charging Table for 3.5 Ton Units .......... 14
Table 8. Charging Table for 4 Ton Units ............. 14
Table 9. Charging Table for 5 Ton Units ............. 15
electrical diagramS & taBleS ................ 16
Figure 10. W.D., Single Phase (1.5 - 5 Ton) ...... 16
Table 10. Comfort Alert LED Diagnostics .......... 17
Table 11. Module Wiring Troubleshooting .......... 18
inStall. / performance checKliSt ......... 20
replacement partS ...................................... 20
important
attention inStallerS:
13 Seer, Single phaSe modelS