Nortek S4BE-018 Series Installation Instructions Manual Download Page 4

4

electrical Wiring

 Warning:

electrical ShocK or Fire haZard

to avoid risk of electrical shock, personal injury, 

or death, disconnect all electrical power to the unit 

before performing any maintenance or service. the 

unit may have more than one electrical supply.
label all wires prior to disconnection when 

servicing the unit. Wiring errors can cause improper 

and dangerous operation.

•  All electrical connections must be in compliance with 

all applicable local codes and ordinances, and with 

the current revision of the National Electric Code  

(ANSI/NFPA 70).

•  For  Canadian  installations  the  electrical  connections 

and grounding shall comply with the current Canadian 

Electrical Code (CSA C22.1 and/or local codes).

pre-electrical checklist

 Verify that the voltage, frequency, and phase of the 

supply source match the specifications on the unit rating 

plate.

  Verify that the service provided by the utility is sufficient 

to handle the additional load imposed by this equipment. 

Refer to the unit wiring label for proper voltage wiring.

  Verify factory wiring is in accordance with the unit wiring 

diagram. See 

Figure 4, (page 9)

Figure 5, (page 

10)

Figure 6, (page 11)

, & 

Figure 7, (page 12)

Inspect for loose connections.

line Voltage

•  A wiring diagram is located on the inside cover of the 

electrical box of the outdoor unit. The installer should 

become familiar with the wiring diagram before making 

any electrical connections to the outdoor unit.

• 

an electrical disconnect must be located within sight 

of and readily accessible to the unit

. This switch shall 

be capable of electrically de-energizing the outdoor unit.

•  Line  voltage  to  the  unit  should  be  supplied  from  a 

dedicated branch circuit containing the correct fuse 

or circuit breaker for the unit. Incoming field wiring 

and minimum size of electrical conductors and circuit 

protection must be in compliance with information listed 

on the outdoor unit data label. Any other wiring methods 

must be acceptable to authority having jurisdiction.

•  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. See 

Figure 4

Figure 5

Figure 6

, & 

Figure 7

. Make all electrical connections in accordance 

with all applicable codes and ordinances.

•  Overcurrent protection must be provided at the branch 

circuit distribution panel and sized as shown on the unit 

rating label and according to applicable local codes. 

See the unit rating plate for minimum circuit ampacity 

and maximum overcurrent protection limits.

connecting refrigerant tubing Between 
the indoor & outdoor unit

 caution:

When servicing, cover or seal openings to 

minimize the exposure of the refrigerant system 

to air to prevent accumulation of moisture and 

other contaminants.

After outdoor and indoor unit placement has been 

determined, route refrigerant tubing between the 

equipment in accordance with sound installation practices.

•  When  connecting  refrigerant  linesets  together,  it  is 

recommended that dry nitrogen be flowing through the 

joints during brazing to prevent internal oxidation and 

scaling.

•  Refrigerant tubing should be routed in a manner that 

minimizes the length of tubing and the number of bends 

in the tubing. If precise forming of refrigerant lines is 

required, a copper tubing bender is recommended. 

Avoid sharp bends and contact of the refrigerant lines 

with metal surfaces.

•  Refrigerant  tubing  should  be  supported  in  a  manner 

that the tubing will not vibrate or abrade during system 

operation.

•  Tubing should be kept clean of foreign debris during 

installation.

•  Every effort should be made by the installer to ensure 

that the field installed refrigerant containing components 

of the system have been installed in accordance with 

these instructions and sound installation practices to 

insure reliable system operation and longevity.

•  The maximum recommended interconnecting refrigerant 

line lengths is 75 ft. and the vertical elevation difference 

between the indoor and outdoor sections should not 

exceed 20 ft.

•  A  filter  dryer  is  provided  with  the  unit  and  must  be 

installed in the liquid line of the system. If the installation 

replaces a system with a filter dryer already present 

in the liquid line, the filter dryer must be replaced with 

the one supplied with the unit. The filter dryer must be 

installed in strict accordance with the manufacturer’s 

installation instructions.

•  Optional equipment such as liquid line solenoid valves, 

low ambient, etc., should be installed in strict accordance 

with the manufacturer’s installation instructions.

Summary of Contents for S4BE-018 Series

Page 1: ...ns 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 I...

Page 2: ...below must be followed during the installation service and operation of this unit Unqualified individuals should not attempt to interpret these instructions or install this equipment Failure to follow...

Page 3: ...formaintenanceinformation and availability of maintenance contracts Please read all instructions before installing the unit Locating the Air Conditioner Survey the job site to determine the best locat...

Page 4: ...Figure 7 Make all electrical connections in accordance with all applicable codes and ordinances Overcurrent protection must be provided at the branch circuit distribution panel and sized as shown on t...

Page 5: ...on the side of the module to quickly direct the technician to the root cause of a problem Alert identification codes are also listed in Table 3 page 13 Compressor Protection TheCoreSenseTM Diagnostics...

Page 6: ...the source of the noise and correct as necessary 3 Verify HI and LO refrigerant pressures 4 Allowthesystemtooperateforseveralminutesandthen set the temperature selector above room temperature Verify...

Page 7: ...airflowsor non listed combinations may require modification to the expansion device and refrigerant charging procedures for proper and efficient system operation The refrigerant charge can be checked...

Page 8: ...weigh in the refrigerant to the amount specified on the unit rating label The refrigerant charging chart is valid for a variety of indoor return air conditions and are most influenced by theoutdooram...

Page 9: ...t and optional relay transformer kits 7 Anti Short Cycle Timer ASCT may or may not be installed in the unit If desired ASCT is factory installed on select models only or may be field installed as show...

Page 10: ...onsecutive Red Flash 2 Red Flash 3 Red Flash 4 Red Flash 5 Red Flash 9 Code 1 Yellow Flash 1 Code 2 Yellow Flash 2 Code 3 Yellow Flash 3 Code 4 Yellow Flash 4 Long Run Time Compressor running extremel...

Page 11: ...ion see unit rating plate 6 Connect to 24 vac 40va class 2 circuit See furnace air handler installation instructions for control circuit and optional relay transformer kits 7 Anti Short Cycle Timer AS...

Page 12: ...erate Run Compressor runs 15min then trips 7min Code 9 Red Flash 19 Over Current Protection PROT terminal has 2A input for more than 40ms Trip Solid Red Demand but compressor is not running YELLOW BLA...

Page 13: ...h 3 Pressure switch cycling Compressor runs for 12 sec to 15 min followed by a compressor trip lasting between 35 sec to 7 min 4x consecutive or 10x total Red Flash3 Yellow Off Code4 Yellow Flash 4 Lo...

Page 14: ...14...

Page 15: ...15...

Page 16: ..._______________ Unit Installed Minimum clearances shown on page 3 YES NO Has the owner s information been reviewed with the customer YES NO Has the Literature Package been left with the unit YES NO RE...

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