Nortek DS4BF Installation Instructions Manual Download Page 3

3

air conditioner inStallation

general information

The S4BF series air conditioner is designed only for 

outdoor rooftop or ground level installations. This unit has 

been tested for capacity and efficiency in accordance 

with AHRI Standards and will provide many years of safe 

and dependable comfort, providing it is properly installed 

and maintained. Abuse, improper use, and/or improper 

maintenance can shorten the life of the appliance and 

create unsafe hazards.
To achieve optimum performance and minimize equipment 

failure, it is recommended that periodic maintenance be 

performed on this unit. The ability to properly perform 

maintenance on this equipment requires certain 

mechanical skills and tools.

Before you install this Unit

  The cooling load of the area to be conditioned must be 

calculated and a system of the proper capacity selected. 

It is recommended that the area to be conditioned be 

completely insulated and vapor sealed.

  Check the electrical supply and verify the power supply 

is adequate for unit operation. The system must be wired 

and provided with circuit protection in accordance with 

local building codes. If there is any question concerning 

the power supply, contact the local power company.

  The indoor section (air handler, furnace, etc) should be 

installed before routing the refrigerant tubing. Refer to 

the indoor unit's installation instructions for installation 

details.

  All units are securely packed at the time of shipment and 

upon arrival should be carefully inspected for damage 

prior to installing the equipment at the job site. Verify 

coil fins are straight. If necessary, comb fins to remove 

flattened or bent fins. Claims for damage (apparent or 

concealed) should be filed immediately with the carrier.

  Please consult your dealer for maintenance information 

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 location for 

mounting the outdoor unit.

•  The  outdoor  unit  should  be  installed  no  closer  than 

18 inches from the outside walls of the facility and in 

an area free from overhead obstructions to ensure 

unrestricted airflow through the outdoor unit.

•  Sufficient clearance for unobstructed airflow through the 

outdoor coil must be maintained in order to achieve rated 

performance. See 

Figure 1

 for minimum clearances to 

obstructions.

•  Overhead  obstructions  (

Figure 1

), poorly ventilated 

areas, and areas subject to accumulation of debris 

should be avoided.

•  Consideration should be given to availability of electric 

power, service access, noise, and shade.

packaging removal

note: 

To prevent damage to the tubing connections, 

carefully remove the carton and user’s manual from the 
equipment. Discard the shipping carton.

ground level

Ground level installations must be located according to 

local building codes or ordinances and these requirements:

•  Clearances must be in accordance with those shown 

in 

Figure 1

.

•  A suitable mounting pad (

Figure 1

) must be provided 

and separate from the building foundation. The pad 

must be level and strong enough to support the weight 

of the unit. The slab height must be a minimum of 2” 

(5 cm) above grade and with adequate drainage.

roof mount

•  The method of mounting should be designed so that it 

does not overload roof structures or transmit noise to 

the interior of the structure. The roof must be structurally 

capable of handling the weight of the unit.

•  Full  perimeter  support  is  required  under  the  unit. 

Support must be made of weather resistant materials 

and installed prior to unit installation.

•  The support must be built to raise the unit 6" above 

the roof.

Figure 1. clearance requirements

2” Mounting Pad

24" for 

Service Access

12" or 18”

See Note

12" or 18”

See Note

DO NOT

OBSTRUCT

TOP OF UNIT

NOTE:

 Units require full perimeter clearances.

Installer must maintain 18” between two units

or 12” between single unit and structure.

6” from Building

or Structure

48”

Summary of Contents for DS4BF

Page 1: ...ckage for future reference DO NOT DESTROY PLEASE READ CAREFULLY KEEP IN A SAFE PLACE FOR FUTURE REFERENCE Installation Instructions important SAFETY INFORMATION 2 Air conditioner INSTallATION 3 Genera...

Page 2: ...tions in the literature on tags and on labels provided with the equipment Read and thoroughly understand the instructions provided with the equipment prior to performing the installation and operation...

Page 3: ...g the unit Locating the Air Conditioner Survey the job site to determine the best location for mounting the outdoor unit The outdoor unit should be installed no closer than 18 inches from the outside...

Page 4: ...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 E...

Page 5: ...is also imprinted 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 15 Compressor Protection TheCoreS...

Page 6: ...e fan and compressor cycle off with the thermostat NOTE The blower should also stop unless fan mode is set to the ON position System Heating optional 1 Set the thermostat s system mode to HEAT and the...

Page 7: ...ded Deviationsfromratedairflowsor non listedcombinationsmayrequiremodificationtothe expansion device and refrigerant charging procedures for proper and efficient system operation The refrigerant charg...

Page 8: ...abel Charging charts are valid for a variety of indoor return air conditions and are most influenced by the outdoor ambienttemperature outdoorfanoperationandtheunit operatingvoltage Beforeusingthesech...

Page 9: ...onductors suitable for 105 5 For ampacities and overcurrent protection see unit rating plate 6 Connect to 24 vac 40va class 2 circuit See furnace airhandler installation instructions for control circu...

Page 10: ...R C S S C R L2 T2 COMPRESSOR CONTACTS L1 T1 COMPRESSOR OUTDOOR FAN MOTOR Y2 Y L R C P DC SOL CSC C R Y2 Y LPS HPS CORESENSE COMPRESSOR SOLENOID COIL 24 VOLT FIELD CONNECTIONS CC Contactor Coil CCH Cr...

Page 11: ...le Phase 60 Hz WIRING DIAGRAM 7110150 1209 FIELD WIRING LEGEND LOW VOLTAGE HIGH VOLTAGE BLACK BLUE YELLOW BLUE BLACK 208 230V H C F CCH R C S S C H L2 T2 COMPRESSOR CONTACTS L1 T1 COMPRESSOR FAN MOTOR...

Page 12: ...tection see unit rating plate 6 Connect to 24 vac 40va class 2 circuit See furnace airhandler installation instructions for control circuit and optional relay transformer kits 7 Couper le courant avan...

Page 13: ...ACTS L1 T1 COMPRESSOR CSC C Y2 Y LPS HPS COMPRESSOR SOLENOID COIL 24 VOLT FIELD CONNECTIONS CC 208 230V Two Stage Split System Air Conditioner Outdoor Section With ECM Outdoor Motor Single Phase 60 Hz...

Page 14: ...class 2 circuit See furnace airhandler installation instructions for control circuit and optional relay transformer kits 7 Couper le courant avant de faire letretien 8 Employez uniquement des conducte...

Page 15: ...functioning Check thermostat sub base or wiring for short circuit Check thermostat installation location level Yellow ALERT Flash Code 2 Compressor Pressure Trip High Refrigerant Charge Discharge pres...

Page 16: ...seized Measure compressor oil level Red LOCKOUT Flash Code 5 Yellow Off Compressor Moderate Run Trip 1 Evaporator blower is not running Check blower relay coil and contacts Check blower motor capacito...

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Page 20: ...______________________ Unit Installed Minimum clearances per Figure 1 page 3 YES NO INSTALLER NAME CITY________________________ STATE_________________ REFRIGERATION SYSTEM Was unit given 24 hr warm up...

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