Nordyne JS5BD Installation Manual

JS5BD SERIES 13 SEER

USER’S MANUAL / INSTALLATION INSTRUCTIONS

SPLIT SYSTEM AIR CONDITIONER - R-22

Please read this information thoroughly and become familiar with the capabilities and
use of your appliance before attempting to operate or maintain this unit. Keep this
literature where you have easy access to it in the future. If a problem occurs, check the
instructions and follow recommendations given. If these suggestions don’t eliminate
the problem, call your servicing contractor.

The Installation Instructions are primarily intended to assist qualifi ed 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.

DO NOT DESTROY. PLEASE READ CAREFULLY AND
KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.

IMPORTANT

USER INFORMATION

Important Safety Information ....................................3

Operating Instructions ...............................................3

Cooling Operation .....................................................3

Heating Operation .....................................................3

Operating the Air Conditioner for Automatic

Cooling and Heating ..................................................3

Operating the Indoor Blower Continuously ................3

Turning the Air Conditioner Off ..................................3

Air Conditioner Maintenance .................................... 3

Troubleshooting ......................................................... 3

INSTALLER INFORMATION

Important Safety Information ....................................4

Air Conditioner Installation .......................................5

General Information ...................................................5

Before You Install this Unit .........................................5

Locating the Air conditioner .......................................5

Packaging Removal ...................................................5

Ground Level .............................................................5

Connecting Refrigerant Tubing between the

Indoor & Outdoor Unit ...............................................6

Electrical Wiring ..........................................................6

Pre - Electrical Checklist ...........................................6

Line Voltage ...............................................................6

Grounding..................................................................7

Thermostat Connections ...........................................7

Positive Temp. Coeffi cient Resistor (PTCR) ..............7

Startup & Adjustments ..............................................8

Pre - Start Checklist ..................................................8

Start-up Procedures ..................................................8

Air Circulation - Indoor Blower ...............................8

System Cooling ......................................................8

System Heating ......................................................8

Refrigerant Charging .................................................8

Charging R-22 Units in AC Mode with

Outdoor Temperatures Above 55° F .......................9

WARRANTY INFORMATION

A warranty certifi cate with full details is included with the
air conditioner. Carefully review these responsibilities with
your dealer or service company. The manufacturer will not
be responsible for any costs found necessary to correct
problems due to improper setup, improper installation,
adjustments, improper operating procedure on the part
of the user, etc. Some specifi c examples of service calls
which are not included in the limited warranty are:

• Correcting wiring problems in the electrical circuit
supplying the air conditioner.

• Resetting circuit breakers or other switches.

• Adjusting or calibrating of thermostat.

Figures & Tables ....................................................... 10

Refrigerant Charging Tables ....................................10

Table 5. JS5BD-018 (1.5 Ton Units) .................... 10

Table 6. JS5BD-018KB (2 Ton Units) .................. 10

Table 7. JS5BD-030KB (2.5 Ton Units) ............... 11

Table 8. JS5BD-036KB (3 Ton Units) .................. 11

Table 9. JS5BD-042 (3.5 Ton Units) .................... 12

Table 10. JS5BD-048 (4 Ton Units) ..................... 12

Table 11. JS5BD-060 (5 Ton Units) ..................... 13

Refrigerant Charging Charts ...................................13

Figure 5. JS5BD-018 (1.5 Ton Units) ................... 13

Figure 6. JS5BD-024KB (2 Ton Units) ................. 14

Figure 7. JS5BD-030KB (2.5 Ton Units) .............. 14

Figure 8. JS5BD-036KB (3 Ton Units) ................. 15

Figure 9. JS5BD-042 (3.5 Ton Units) ................... 15

Figure 10. JS5BD-048 (4 Ton Units) .................... 16

Figure 11. JS5BD-060 (5 Ton Units) .................... 16

Figure 12. JS5BD Wiring Diagram ....................... 17

Air Conditioner Maintenance .....................................9

Replacement Parts .....................................................9

2

USER INFORMATION

IMPORTANT SAFETY INFORMATION

Safety markings are used frequently throughout this
manual to designate a degree or level of seriousness and
should not be ignored. WARNING indicates a potentially
hazardous situation that if not avoided, could result in
personal injury or death. CAUTION indicates a potentially
hazardous situation that if not avoided, may result in minor
or moderate injury or property damage.

OPERATING INSTRUCTIONS

NOTE: Thermostat styles vary. Some models may not

include the AUTO mode and others will have the AUTO
in place of the HEAT and COOL. Others may include all
three. Please refer to the thermostat manufacturer’s User
manual for detailed programming instructions.

Cooling Operation

1. Set the thermostat’s system mode to COOL or AUTO
and change the fan mode to AUTO. See Figure 1.

2. Set the temperature selector to the desired
temperature level. The outdoor fan, compressor, and
blower motor will all cycle on and off to maintain the
indoor temperature at the desired cooling level.

NOTE: If the temperature level is re-adjusted, or the
system mode is reset, the fan and compressor in the
outdoor unit may not start immediately. A protective
timer circuit holds the compressor and the outdoor fan
off for approximately 5 minutes following a previous
operation or the interruption of the main electrical
power (if applicable).

Heating Operation

1. Set the thermostat’s system mode to HEAT or AUTO
and change the fan mode to AUTO. See Figure 1.

2. Set the temperature selector to the desired
temperature level. The optional heating equipment
(furnace or electric heat) will cycle on & off to maintain
the indoor temperature at the desired temperature
level.

Operating the AC for Automatic Cooling & Heating

1. Set the thermostat system mode to AUTO and the
thermostat fan mode to AUTO. See Figure 1.

2. Set the thermostat temperature selector to the desired
temperature level. The thermostat will maintain the
desired temperature level by switching between either
the outdoor cooling unit or the indoor heating unit
(furnace or electric heat) automatically.

Operating the Indoor Blower Continuously

The continuous indoor blower operation is typically used to
circulate the indoor air to equalize a temperature unbalance
due to a sun load, cooking, or fi replace operation. Set the
thermostat fan mode to ON (Figure 1). The indoor blower
starts immediately, and will run continually until the fan
mode is reset to AUTO.

The continuous indoor blower operation can be obtained
with the thermostat system mode set in any position,
including OFF.

Turning the Air Conditioner OFF

Change the thermostat’s system mode to OFF and the fan
mode to AUTO (See Figure 1). NOTE: The system will not
operate, regardless of the temperature selector setting.

Fan

Mode

Figure 1. Digital Thermostat

System

Mode

Temperature

Selector

AIR CONDITIONER MAINTENANCE

Proper maintenance is most important to achieve the best
performance from the appliance and should be performed
frequently at the beginning of each air conditioning season.

WARNING:

Your air conditioner contains liquid and gaseous
refrigerant under pressure. Installation and
servicing should only be attempted by qualifi ed,
trained personnel thoroughly familiar with the
equipment and safe responsible refrigerant
handling procedures. Failure to comply with
this warning could result in equipment damage,
personal injury, or death.

• Keep the outdoor unit clean. Hose off periodically and
keep unit fi ns clear of leaves and grass clippings.

• Keep the outdoor unit clear of obstructions.
DO NOT obstruct airfl ow with tall plants or shrubs.
DO NOT store gasoline or other fl ammable materials
on or near the outdoor unit.

• Never operate the appliance without a fi lter installed in
the return air duct. Inspect fi lters frequently and replace
when necessary with fi lter of same dimensional size.

TROUBLESHOOTING

• Check the thermostat setting. Make sure the system
mode and temperature settings are correct.

• Check the electrical panel for tripped circuit breakers.

• Check the fi lters for dust accumulation.

• Check the outdoor unit and make sure it is clean and
not covered with grass or leaves.

3

INSTALLER INFORMATION

IMPORTANT SAFETY INFORMATION

INSTALLER: Please read all instructions before servicing
this equipment. Pay attention to all safety warnings and
any other special notes highlighted in the manual. Safety
markings are used frequently throughout this manual to
designate a degree or level of seriousness and should not
be ignored. WARNING indicates a potentially hazardous
situation that if not avoided, could result in personal injury
or death. CAUTION indicates a potentially hazardous
situation that if not avoided, may result in minor or moderate
injury or property damage.

WARNING:

Shut off all electrical power to the unit before
performing any maintenance or service on the
system. Failure to comply may result in personal
injury or death.

WARNING:

Unless noted otherwise in these instructions,
only factory authorized parts or accessory
kits may be used with this product. Improper
installation, service, adjustment, or maintenance
may cause explosion, fi re, electrical shock or
other hazardous conditions which may result in
personal injury or property damage

WARNING:

JS5BD Split System Air conditioners leave
the factory with a nitrogen holding charge.
Follow all charging instructions for maximum
unit performance and effi ciency. Some local
codes require licensed installation/service
personnel to service this type of equipment.
Refrigerant charging must be done by qualifi ed
personnel familiar with safe and environmentally
responsible refrigerant handling procedures.
Under no circumstances should the owner
attempt to install and/or service this equipment.
Failure to comply with this warning could result
in property damage, personal injury, or death.

CAUTION:

This unit uses refrigerant R-22. DO NOT use
any other refrigerant in this unit. Use of another
refrigerant will damage the unit.

WARNING:

The information listed below must be followed
during the installation, service, and operation
of this unit. Unqualifi ed individuals should
not attempt to interpret these instructions or
install this equipment. Failure to follow safety
recommendations could result in possible
damage to the equipment, serious per

injury or death

• The installer must comply with all local codes and
regulations which govern the installation of this type
of equipment. Local codes and regulations take
precedence over any recommendations contained in
these instructions. Consult local building codes and
the National Electrical Code (ANSI CI) for special
installation 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 Canadian Electric Code Part 1 CSA
C.22.1.

• This equipment contains liquid and gaseous refrigerant
under high pressure. DO NOT USE ANY PORTION OF
THE CHARGE FOR PURGING OR LEAK TESTING.
Installation or servicing should only be performed by
qualifi ed trained personnel thoroughly familiar with this
type equipment.

• Fully annealed, refrigerant grade copper tubing should
be used when installing the system. Refrigerant suction
line tubing should be fully insulated.

• Installation of equipment may require brazing
operations. Installer must comply with safety codes
and wear appropriate safety equipment (safety glasses,
work gloves, fi re extinguisher, etc.) when performing
brazing operations.

• Follow all precautions 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
operational checkout of the equipment.

.

sonal

4

AIR CONDITIONER INSTALLATION

General Information

The JS5BD series air conditioner is designed only for
outdoor rooftop or ground level installations. This unit has
been tested for capacity and effi ciency in accordance with
A.H.R.I. 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 fi ns are straight. If necessary, comb fi ns to remove
fl attened or bent fi ns. Claims for damage (apparent or
concealed) should be fi led 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. See Figure 5 (page 12) for
unit dimensions.

• Overhead obstructions, poorly ventilated areas, and
areas subject to accumulation of debris should be
avoided.

• Suffi cient clearance for unobstructed airfl ow through the
outdoor coil must be maintained in order to achieve rated
performance. See Figure 2 for minimum clearances to
obstructions.

• 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 2.

• A suitable mounting pad (Figure 3) 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.

DO NOT

18"

18"

18"

OBSTRUCT

TOP OF UNIT

Figure 2. Clearance Requirements

2”

Figure 3. Ground Level Installation

18"

5

Connecting Refrigerant Tubing Between the Indoor
& Outdoor Unit

CAUTION:

This system uses R-22 refrigerant with POE
oil. 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 fl owing 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 fi eld 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.

COPPER WIRE SIZE — AWG

(1% Voltage Drop)

Supply Wire Length-Feet

200 150 100 50

6 8 10 14 15
46812 20
46810 25
44610 30
3468 35
3468 40
2346 45
2346 50
2346 55
1234 60

Wire Size based on N.E.C. for 60° type copper conductors.

Table 1. Copper Wire Size

Supply Circuit

Ampacity

• Installing a fi lter dryer is optional. However it is good
practice to install a fi lter dryer when replacing the
evaporator and/or condensor of a system. The fi lter
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.

ELECTRICAL WIRING

WARNING:

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 specifi cations on the unit
rating plate. See Table 4 (page 12).

 Verify that the service provided by the utility is suffi cient

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 (Figure 4, page 10). 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 fi eld 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.

6