Nortek S4BF-048 Series Installation Instructions Manual
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Split SyStem air conditioner
inStallation inStructionS
S4bf - 024, 036, 048, & 060 (2, 3, 4, & 5 ton) Series
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 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.
16 Seer, 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
Indoor & Outdoor Unit ........................................... 4
electrical Wiring ........................................... 4
Pre - Electrical Checklist ....................................... 4
Line Voltage ........................................................... 4
Diagnostics Module ..................... 5
24VAC Power Wiring ........................................... 5
Thermostat Demand Wiring ................................ 5
Interpreting the Diagnostic LED's ....................... 5
LED Description .................................................. 5
Grounding ............................................................. 6
Thermostat Connections ....................................... 6
Startup & adjuStmentS ............................... 7
Pre - Start Checklist .............................................. 7
Start-up Procedures .............................................. 7
Air Circulation - Indoor Blower .............................. 7
System Cooling ..................................................... 7
System Heating ..................................................... 7
air conditioner maintenance .................... 7
component functionS .................................. 8
refrigerant charging ................................. 8
Outdoor Temperatures Above 55° F ...................... 8
electrical diagramS & tableS ................ 10
Figure 6. S4BF-024 .......................................... 10
Figure 7. S4BF-024 (w/ Comfort Alert) ............. 11
Figure 8. S4BF-036 .......................................... 12
Figure 9. S4BF-036 (w/ Comfort Alert) ............. 13
Figure 10. S4BF-048 & 060 ............................. 14
Figure 11. S4BF-048 & 060 (w/ Comf. Alert) ..... 15
Table 3. Comfort Alert LED Diagnostics ............ 16
Table 4. Module Wiring Troubleshooting ............ 17
inStall. / performance checKliSt ......... 20
replacement partS ...................................... 20
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Table of Contents
Related Manuals for Nortek S4BF-048 Series
Summary of Contents for Nortek S4BF-048 Series
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Page 1: Table Of Contents
Split SyStem air conditioner 16 Seer, Single phaSe modelS inStallation inStructionS S4bf - 024, 036, 048, & 060 (2, 3, 4, & 5 ton) Series important Safety information ....2 important air conditioner inStallation ....3 General Information ..........3 attention inStallerS: Before You Install this Unit ........ -
Page 2: Important Safety Information
important Safety information INSTALLER: Please read all instructions before caution: servicing this equipment. Pay attention to all safety warnings and any other special notes highlighted this unit uses r-410a refrigerant. do not use in the manual. Safety markings are used frequently any other refrigerant in this unit. -
Page 3: Air Conditioner Installation
air conditioner inStallation packaging removal note: To prevent damage to the tubing connections, general information carefully remove the carton and user’s manual from the The S4BF series air conditioner is designed only for equipment. Discard the shipping carton. outdoor rooftop or ground level installations. This unit has been tested for capacity and efficiency in accordance ground level with AHRI Standards and will provide many years of safe... -
Page 4: Connecting Refrigerant Tubing Between The Indoor & Outdoor Unit
connecting refrigerant tubing between the indoor replaces a system with a filter dryer already present & outdoor unit in the liquid line, the filter dryer must be replaced with the one supplied with the unit. The filter dryer must be caution: installed in strict accordance with the manufacturer’s installation instructions. -
Page 5: Comfort Alert Tm Diagnostics Module
• The outdoor unit requires both power and control circuit electrical connections. Refer to the wiring diagram / schematic for identification and location of outdoor unit field wiring interfaces (Figures 6 - 11, pages 10 - 15). Make all electrical connections in accordance with all POWER LED applicable codes and ordinances. -
Page 6: Grounding
flashes, referred to as the Flash Code, correlates to a particular abnormal condition. Detailed descriptions of Thermostat these ALERT Flash Codes are listed in Tables 3 & 4. O Y2 Y G RC RH C W2 W/E • TRIP LED (Red): indicates a demand signal is received from the thermostat, but current to the compressor is not detected by the module. -
Page 7: Startup & Adjustments
Start up & adjuStmentS air conditioner maintenance pre-Start check list √ Verify the indoor unit is level and allows proper Warning: condensate drainage. √ Verify the outdoor coil and top of the unit are free from to prevent electrical shock, personal injury, or obstructions and debris, and all equipment access/ death, disconnect all electrical power to the unit control panels are in place. -
Page 8: Component Functions
component functionS refrigerant charging comfort alert diagnostics (Select models only) Warning: The Comfort Alert diagnostics module troubleshoots heat pump and air conditioning system failures and S4bf Split System air conditioners are shipped accurately detects the cause of electrical and system charged with r410a refrigerant and ready related failures without any sensors. -
Page 9: Application Notes For Using The Charging Chart
application notes on the use of charging charts charging chart (Figure 5), the ideal system sub-cooling can vary over the range of operation. Reference the • this equipment’s cooling system contains charts to determine the ideal amount of sub-cooling for a refrigerant under high pressure. -
Page 10: Electrical Diagrams & Tables
electrical diagramS & tableS (2 ton) figure 6. Wiring diagram for S4bf-024 Series... - Page 11 YELLOW BLACK BLUE (2 ton) Series figure 7. Wiring diagram for S4bf-024 with comfort alert...
- Page 12 BLACK BLUE (3 ton) Series figure 8. Wiring diagram for S4bf-036...
- Page 13 YELLOW BLACK BLUE (3 ton) Series figure 9. Wiring diagram for S4bf-036 with comfort alert...
- Page 14 YELLOW BLUE (4 & 5 ton) Series figure 10. Wiring diagram for S4bf-048 & S4bf-060...
- Page 15 YELLOW BLACK BLUE (4 & 5 ton) Series figure 11. Wiring diagram for S4bf-048 & S4bf-060 with comfort alert...
- Page 16 Status led Status led description Status led troubleshooting information POWER Module has power Supply voltage is present at module terminals (Green LED) • Compressor protector is open • Check for high head pressure • Check compressor supply voltage Thermostat demand signal Y •...
- Page 17 Status led Status led description Status led troubleshooting information • Run capacitor has failed • Open circuit in compressor start wiring or connections ALERT Open Start Circuit — Check wiring and connectors between supply and the compressor S Flash Code 6 Current only in run terminal (Yellow LED)
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Page 20: Install. / Performance Checklist
inStallation / performance checK liSt electrical SyStem: inStallation addreSS: Electrical connections tight? Line voltage polarity correct? CITY ________________________ STATE ________________ Rated Voltage: ___________________________________ VOLTS UNIT MODEL # ________________________________________ UNIT SERIAL # _______________________________________ L1-L2 Volts: _____________________________________ VOLTS Unit Installed Minimum clearances per Figure 1 (page 3)? L1-L3 Volts: _____________________________________ VOLTS inStaller name:...
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