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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.

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.

Locating the Air Conditioner

• Survey the job site to determine the best location for 

mounting 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.

• The unit should not be placed under roofing or other 

overhangs which are not guttered; that would allow water 

or ice to fall into the unit's discharge opening.

•  Consideration should be given to availability of electric 

power, service access, noise, and shade.

Clearance Requirements

•  The general recommendation is for the units to be installed 

with 18 inches of clearance on 3 sides and with 24 inches 

of clearance for the service access side to the unit’s service 

panel.

•  For installations that are space constrained, one side of the 

unit, adjacent to the service panel, may have its air side 

clearance reduced to a minimum of 6 inches.  The other 

side adjacent to the service panel requires 24 inches for 

service access.  The remaining two sides, at a minimum 

shall require 12 inches of clearance.

• A minimum of 18 inches between two units must be 

maintained for proper performance.

Ground Installations

The unit should be installed on a solid base, that is level and 

located at least 2 inches above grade*.

Note:

 It is recommended that poured concrete mounting 

bases are not be attached or adjacent to the building 

structure or foundation.

Roof Installation

The unit may only be installed on a structure that is capable 

of supporting the total weight of the unit and its anchorage. 

The support for the base of the unit may not slope more than 

1/8 inch per foot. The minimum clearance for the base of the 

unit to the roof-line is 2 inches* for residential applications.

Note on ground and roof clearances:

 Heat pump and 

other applications should account for the accumulation 

of snow and raise the base of the unit accordingly. (At a 

minimum, a 6 inch clearance is required.)

Accessory Mounting Kits

Kits for other mounting methods and accessories can be 

found in the technical sales literature for the unit. Or the 

literature library on NortekHVAC.com.

Connecting Refrigerant Tubing Between the Indoor 

& Outdoor Unit

 CAUTION:

When connecting refrigerant line-sets together, 

it is highly recommended that dry nitrogen be 

flowing through the joints during brazing to 

prevent internal oxidation and scaling.  Copper 

oxides, internal to the system can damage the 

compressors bearings and seals, block small 

orifices and microchannels or otherwise damage 

components.

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.

18” Recommended.

(Minimum allowable clearance

of 6” to structure on

1 side of the unit only.)

48”

Summary of Contents for RN24K Series

Page 1: ...el 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 REA...

Page 2: ...nstallation requirements All electrical wiring must be completed in accordance with local state and national codes and regulations and with the National Electric Code ANSI NFPA 70 or in Canada the Can...

Page 3: ...d onesideofthe unit adjacent to the service panel may have its air side clearance reduced to a minimum of 6 inches The other side adjacent to the service panel requires 24 inches for service access Th...

Page 4: ...nit rating label and according to applicable local codes See the unit rating plate for minimum circuit ampacity MCA CAUTION When performing brazing operations always protect the system components and...

Page 5: ...t the power supplied by branch circuits for both the indoor and outdoor equipment is the proper voltage for the equipment and that the overcurrent protection device is properly sized and that the supp...

Page 6: ...ness at the beginning of each heating and cooling season Service as necessary Do not attempt to add additional oil or grease to motors unequipped with oil tubes or grease fittings Most outdoor unit mo...

Page 7: ...orm the following steps 1 Determinetherecommendedchargeaddition ifapplicable for the system being installed This information is in the unit s QRD Quick Reference Data sheet 2 Calculate the amount of a...

Page 8: ...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 circuit and optional relay trans...

Page 9: ...Connect to 24 VAC 40VA class 2 circuit See furnace airhandler installation instructions for control circuit and optional relay transformer kits 7 Caution The Low Voltage wiring in this unit shall not...

Page 10: ...10...

Page 11: ...11...

Page 12: ...number of the unit when ordering replacement parts ELECTRICAL Capacitors Temperature Limit Switches Compressors Thermostats Contactors Time Delay Relays Pressure Switches Transformers Relays MOTORS B...

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