DS5BA Split System 4 & 5 Ton- Export - eNora

4-5 TON SERIES - FOR EXPORT ONLY
10 SEER
User’s Manual / Installation Instructions
Split system air conditioner - Single & 3 phase, r-22
IMPORTANT
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 your problem, call your servicing contractor.
The installation 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.
DO NOT DESTROY. PLEASE READ CAREFULLY AND
KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
USER INFORMATION
Important Safety Information........................3
Warranty Information
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
A warranty certificate 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 specific 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.
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
Rooftop.......................................................................5
Connecting Refrigerant Tubing Between the
Indoor & Outdoor Unit................................................6
Electrical Wiring..................................................6
Pre-Electrical Check List............................................6
Line Voltage................................................................6
Grounding..................................................................7
Thermostat Connections............................................7
Unbalanced 3-Phase Supply Voltage.........................7
Optional Electric Heater Kits......................................8
Startup & Adjustments......................................8
Pre-Start Check List...................................................8
Start-up Procedures...................................................8
Air Circulation - Indoor Blower...................................8
Anti-Short Cycle Timer Protection..............................8
System Cooling..........................................................8
System Heating..........................................................9
Refrigerant Charging..................................................9
Charging Units in AC Mode when
Outdoor Temperature is Above 55° F.........................9
2
Air Conditioner Maintenance...........................9
Figures & Tables..................................................10
Figure 4. - Unit Dimensions......................................10
Table 2. - Unit Dimensional Data..............................10
Wiring Diagrams.......................................................11
Figure 4. - Single Phase Units (4 Ton) ....................11
Figure 5. - Single Phase Units (5 Ton) ....................12
Figure 6. - 3 Phase Units (4 Ton).............................13
Figure 7. - 3 Phase Units (5 Ton).............................14
Refrigerant Charging Tables.....................................15
Table 3. - Charging Table for 4 Ton Units..................15
Table 4. - Charging Table for 5 Ton Units..................15
INSTALLATION / PERFORMANCE CHECK LIST.....16
Replacement Parts.............................................16
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.
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.
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.
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 heating level.
Fan
Mode
System
Mode
Temperature
Selector
Figure 1. Digital Thermostat
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:
This air conditioner contains liquid and
gaseous refrigerant under pressure.
Installation and servicing should only be
attempted by qualified, 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.
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.
• Keep the outdoor unit clean. Hose off periodically and
keep unit fins clear of leaves and grass clippings.
• Keep the outdoor unit clear of obstructions. DO NOT
obstruct airflow with tall plants or shrubs. DO NOT store
gasoline or other flammable materials on or near the
outdoor unit.
• Never operate the appliance without a filter installed in
the return air duct. Inspect filters frequently and replace
when necessary with filter of same dimensional size.
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 fireplace 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.
• Check the thermostat setting. Make sure the system
mode and temperature settings are correct.
• Check the electrical panel for tripped circuit breakers.
• Check the filters for dust accumulation.
• Check the outdoor unit and make sure it is clean and
not covered with grass or leaves.
Troubleshooting
3
INSTALLER INFORMATION
important SAFETY INFORMATION
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
k i t s m a y b e u s e d w i t h t h i s p ro d u c t .
Improper installation, service, adjustment,
or maintenance may cause explosion,
fire, electrical shock or other hazardous
conditions which may result in personal
injury or property damage.
WARNING:
Split system air conditioners leave the
factory with a nitrogen holding charge.
Follow all charging instructions for maximum
unit performance and efficiency. Some
local codes require licensed installation/
service personnel to service this type of
equipment. Refrigerant charging must be
done by qualified personnel familiar with
s a fe a n d e nv i ro n m e n t a l ly r e s p o n s i bl e
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.
4
CAUTION:
This unit uses R-22 refrigerant. 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. Unqualified 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 sonal 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 for special installation
requirements.
• All electrical wiring must be completed in accordance
with local, state and national codes and regulations
that take precedence.
• 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
qualified trained personnel thoroughly familiar with this
type of equipment.
• Fully annealed, refrigerant grade copper tubing should
be used when installing the system. Refrigerant suction
line tubing should be fully insulated.
• This unit is designed for outdoor installations only and
should be located in a position as shown on page 5.
• 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.
• Refrigerant and electrical line should be routed through
suitably waterproofed openings to prevent water from
leaking into the structure.
Air conditioner INSTallATION
General Information
This 4-5 ton air conditioner is designed only for outdoor
rooftop or ground level installations. The unit has been
tested and certified by AHRI for capacity and efficiency 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.
√ Always install a unit disconnect switch within sight of
the unit or in accordance with local codes.
√ 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. Claims for damage 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.
• Overhead obstructions (Figure 2), poorly ventilated
areas, and areas subject to accumulation of debris
should be avoided.
• Sufficient clearance for unobstructed airflow 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.
• See Figure 3 & Table 2 (page 10) for unit dimensions.
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 2) must be provided
and be separate from the building foundation. The
pad must be level and strong enough to support the
unit’s weight. The slab height must be a minimum of 2”
(5 cm) above grade and with adequate drainage.
Rooftop
Rooftop installations must be located according to local
building codes or ordinances and these requirements:
• Units may be installed on Class A, B, or C roof covering
material.
• Secure optional mounting pad or frame to roof using
acceptable mechanical methods per local codes.
• 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. The
support must be built to raise the unit 6" above the
roof, must be made of weather resistant materials,
and installed prior to unit installation.
6” from Building
or Structure
24" for
Service Access
12" or 18”
See Note
DO NOT
OBSTRUCT
TOP OF UNIT
12" or 18”
See Note
NOTE: Units require full perimeter clearances.
Installer must maintain 18” between two units
or 12” between single unit and structure.
48”
2” Mounting Pad
Figure 2. Clearance Requirements
5
Connecting Refrigerant Tubing Between the Indoor
& Outdoor Unit
CAUTION:
This system uses R-22 refrigerant with mineral
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 flowing through the
joints during brazing.This will prevent internal oxidation
and scaling from occurring.
• Refrigerant tubing should be routed in a manner that
minimizes the length of tubing and the number of bends
in the tubing.
• 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.
• Recommended maximum length of the interconnecting
refrigerant line is 75 feet (4 Ton) and 90 feet (5 Ton).
And the maximum vertical elevation difference between
the indoor and outdoor sections should not exceed 20
feet.
• 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.
• Optional equipment such as liquid line solenoid valves,
start assist kit, low suction pressure cutout switch kit,
high pressure cutout switch kit, etc., should be installed
in strict accordance with the manufacturer’s installation
instructions.
6
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 state, national, or local codes and ordinances
that take precedence.
Pre-Electrical Check List
√ 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 high and low
voltage wiring.
√ Verify factory wiring is in accordance with the unit wiring
diagram (Figures 4, 5, 6 & 7, pages 11-14). Inspect for
loose connections.
√ Phase balance on 3 phase units must always be
checked. See Unbalanced 3-Phase Supply Voltage
section (page 7).
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 Figures 4, 5, 6, & 7 (pages
11-14). 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.
Provide power supply for the unit in accordance with the
unit wiring diagram, and the unit rating plate. Connect
the line-voltage leads to the terminals on the contactor
inside the control compartment.
Use only copper wire for the line voltage power supply
to this unit. Use proper code agency listed conduit and
a conduit connector for connecting the supply wires to
the unit. Use of rain tight conduit is recommended.
208/230 Volt units are shipped from the factory wired
for 230 volt operation. For 208V operation, remove the
lead from the transformer terminal marked 240V and
connect it to the terminal marked 208V.
Optional equipment requiring connection to the power
or control circuits must be wired in strict accordance
with the applicable local codes, and the instructions
provided with the equipment.
Grounding
WARNING:
The unit cabinet must have an uninterrupted
or unbroken electrical ground to minimize
personal injury if an electrical fault should
occur. Do not use gas piping as an electrical
ground!
This unit must be electrically grounded in accordance
with all applicable state, national, or local codes that take
precedence. Use the grounding lug provided in the control
box for grounding the unit.
Thermostat Connections
• Thermostat connections should be made in accordance
with the instructions supplied with the thermostat and
the indoor equipment.
• Single stage or two-stage thermostats can be used
with this equipment depending on optional accessories
(i.e. economizer) installed with the unit. Select a
thermostat that operates in conjunction with the installed
accessories.
• The outdoor unit is designed to operate from a 24 VAC
Class II control circuit. The control circuit wiring must
comply with applicable local codes having jurisdiction.
• The low voltage wires must be properly connected to
the unit's low voltage terminal block. Recommended
wire gauges and wire lengths for typical thermostat
connections are listed in Table 1 (page 8).
• The thermostat should be mounted about 5 feet (1.52m)
above the floor on an inside wall. DO NOT install the
thermostat on an outside wall or any other location
where its operation may be adversely affected by radiant
heat from fireplaces, sunlight, or lighting fixtures, and
convective heat from warm air registers or electrical
appliances. Refer to the thermostat manufacturer’s
instruction sheet for detailed mounting and installation
information.
Unbalanced 3-Phase Supply Voltage
Voltage unbalance occurs when the voltages of all phases
of a 3-phase power supply are no longer equal. This
unbalance reduces motor efficiency and performance.
Some underlying causes of voltage unbalance may include:
Lack of symmetry in transmission lines, large single-phase
loads, and unbalanced or overloaded transformers. A
motor should never be operated when a phase imbalance
in supply is greater than 2%.
Perform the following steps to determine the percentage
of voltage imbalance:
1.Measure the line voltages
of your 3 phase power
supply where it enters the
building and at a location
that will only be dedicated
to the unit installation (at
the units circuit protection
or disconnect).
Example:
AB = 226V
BC = 230V
AC = 227V
2.Determine the average voltage in the power supply.
In this example, the measured line voltages were
226, 230, and 227. The average would be 228 volts
(226 + 230 + 227 = 683 / 3 = 228).
3.Determine the maximum deviation:
Example:
From the values given in step 1, the BC voltage
(230V) is the greatest difference in value from
the average:
Highest Value
230 - 228 = 2
228 - 226 = 2
228 - 227 = 1
4.Determine percent of
voltage imbalance by
using the results from
steps 2 & 3 in the following
equation.
% Voltage Imbalance = 100 x
Example:
100 x
2
= 0.88%
228
max voltage deviation
from average voltage
average voltage
The amount of phase imbalance (0.88%) is satisfactory
since the amount is lower than the maximum allowable
2%. Please contact your local electric utility company if
your voltage imbalance is more than 2%.
7
Thermostat
Wire Gauge
Recommended T-Stat Wire
Length (Unit to T-Stat)
2-Wire
(Heating)
5-Wire
(Heating/Cooling)
24
55
25
22
90
45
20
140
70
18
225
110
Table 1. Thermostat Wire Gauge
Optional Electric Heater Kits
Optional field-installed electric heater kits may be
available in multiple heating capabilities up to a maximum
of 36kw. Split System Air Conditioners are designed to
allow optional auxiliary electric heat to be field installed
as required by the building’s particular heating load. The
options available for each unit are shown in the heater
kit installation instructions or the air handler's Technical
Service Literature.
Install the heater kits as directed by the instructions
supplied with the heater kit. Follow all cautions and
warnings as directed.
STARTUP & ADJUSTMENTS
Pre-Start Check List
√ Verify the outdoor coil and top of the unit are free from
obstructions and debris, and all equipment access/
control panels are in place.
√ Verify that the refrigerant tubing is properly connected
and leak checked.
√ Verify that the unit is properly charged with the
refrigerant listed on the rating label.
√ Verify that the line voltage power leads are securely
connected and the unit is properly grounded.
√ Verify that the low voltage wires are securely connected
to the correct leads on the low voltage terminal strip.
√ Verify that the power supply branch circuit overcurrent
protection is sized properly.
√ Verify that the thermostat is wired correctly.
Start-up Procedures
WARNING:
If this unit is equipped with a crankcase
heater, allow 24 hours prior to continuing
the start-up procedures to allow for heating
of the refrigerant compressor crankcase.
Failure to comply may result in damage
and could cause premature failure of the
system. This warning should be followed
at initial start-up and any time the power
has been removed for 12 hours or longer.
8
The thermostat's function mode should be set to OFF and
the fan mode should be set to AUTO. Close all electrical
disconnects to energize the system.
Air Circulation - Indoor Blower
1.Set the thermostat system mode on OFF and the fan
mode to ON.
2.Verify the blower runs continuously. Check the air delivery
at the supply registers and adjust register openings for
balanced air distribution. If insufficient air is detected,
examine ductwork for leaks or obstructions.
3.Set the thermostat fan mode to AUTO and verify the
blower stops running.
NOTE: On 3 phase air handler models only - If blower
is spinning opposite of arrow direction, shut off the main
power to the unit and switch any two field wires at the
disconnect. DO NOT alter unit wiring.
Anti-Short Cycle Timer Protection
1.Set the thermostat system mode to COOL. Note the
temperature setting of the thermostat and gradually raise
the set-point temperature until the unit de-energizes.
2.Immediately lower the set-point temperature of the
thermostat to its original setting and verify that the
indoor blower is energized and outdoor unit remains
de-energized.
3.After approximately 5 minutes, verify the compressor
and fan energize and the temperature of the discharge
air is cooler than the room temperature. NOTE: 3 phase
air conditioners DO NOT have short cycle protection.
System Cooling
1.Set the thermostat’s system mode to COOL and the
fan mode to AUTO. Gradually lower the thermostat
temperature setpoint below room temperature and
verify the outdoor unit and indoor blower energize.
2.Verify blower wheel is spinning in direction indicated by
arrow. Feel the air being circulated by the indoor blower
and verify that it is cooler than ambient temperature.
Listen for any unusual noises. If unusual sounds occur,
determine the source of the noise and correct as
necessary.
3.Verify HI and LO refrigerant pressures.
NOTE: If refrigerant pressures are abnormal and the
compressor is rotating backwards, shut off main power to
the unit and switch any two field wires at the disconnect.
DO NOT alter unit wiring.
4.Allow the system to operate for several minutes and then
set the temperature selector above room temperature.
Verify the 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
temperature mode above room temperature.
2.Verify the optional heating equipment (furnace or
electric heat) and indoor blower energize. Feel the air
being circulated by the indoor blower and verify that
it is warmer than ambient temperature. Listen for any
unusual noises. If unusual sounds occur, determine the
source of the noise and correct as necessary.
Refrigerant Charging
WARNING:
4-5 Ton Split System Air Conditioners leave
the factory with a nitrogen holding charge.
Follow these charging instructions for
maximum unit performance and efficiency.
Some local codes require licensed installation/
service personnel to service this type of
equipment. Refrigerant charging must be
done by qualified personnel familiar with
s a fe a n d e nv i ro n m e n t a l ly r e s p o n s i bl e
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.
After refrigerant line connections are completed, it is
required that you leak check and evacuate the indoor
section and all line connections (using proper methods)
before finalizing the full system refrigerant charge.
• To achieve rated capacity and efficiency the compressor
must be exposed to refrigerant for at least 24 hours
prior to running and then the compressor must be run
for a minimum of 12 hours.
• Tables 3 & 4 (page 15) are applicable only to matched
assemblies of NORDYNE equipment and listed airflows
for the indoor coil. Outdoor units with indoor coils
not listed are not recommended and deviations from
rated airflows or 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 and adjusted
through the service ports provided external to the
outdoor unit. Use only gage linesets which have a
“Schrader” depression device present to actuate the
valve.
• 4 Ton units should use 0.079 orifice in the liquid line
and should be charged with 67 oz. of R-22 refrigerant
as specified in the supplied addendum (7091540).
5 Ton units should use 0.093 orifice in the liquid line
and should be charged with 82 oz. of R-22 refrigerant
as specified in the supplied addendum (7091540).
Charging Units in AC mode when Outdoor Temperature
is above 55° F (optimized sub-cooling of 10° F - 12° F)
1.With the system operating at steady-state, measure
the liquid refrigerant pressure (in PSIG) at the outdoor
unit service valve.
2.Measure the liquid refrigerant temperature (in
Fahrenheit) at the service valve.
3.Determine the required liquid refrigerant pressure from
Table 3 & Table 4 (page 15).
• If the pressure measured in Step 1 is greater than
the required liquid refrigerant pressure determined in
Step 3, then there is too much charge in the system.
Remove refrigerant and repeat Steps 1 through 3
until the system is correctly charged.
• If the pressure measured in Step 1 is less than the
required liquid refrigerant pressure determined in
Step 3, there is too little charge in the system. Add
refrigerant and repeat Steps 1 through 3 until the
system is correctly charged.
Air conditioner MAINTENANCE
WARNING:
To prevent 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.
Proper maintenance is important to achieve optimum
performance from the air conditioner.The ability to properly
perform maintenance on this equipment requires certain
mechanical skills and tools. If you do not possess these
skills, contact your dealer for maintenance. Consult your
local dealer about the availability of maintenance contracts.
Routine maintenance should include the following:
• Inspect and clean or replace air filters at the beginning
of each heating and cooling season, or more frequently
if required.
• Inspect the condensate drain and outdoor coil at the
beginning of each cooling season. Remove any debris.
Clean the outdoor coil and louvers as necessary using
a mild detergent and water. Rinse thoroughly with water.
• Inspect the electrical connections for tightness at the
beginning of each heating and cooling season. Service
as necessary.
CAUTION:
The unit should never be operated without
a filter in the return air system. Replace
disposable filters with the same type and
size.
• Do not attempt to add additional oil to motors unequipped with oil tubes.The compressor is hermetically
sealed at the factory and does not require lubrication.
9
FIGURES & TABLES
DO NOT OBSTRUCT TOP OF UNIT
Allow adequate clearance for airflow
W
D
H
Figure 3. Unit Dimensions
S5BA-
048KA/CA
060KB/CD
H
27
27
W
22-3/4
30-3/4
D
22-3/4
30-3/4
Table 2. Unit Dimensional Data
10
FIELD WIRING
LOW VOLTAGE
HIGH VOLTAGE
LEGEND:
24 VOLT FIELD
CONNECTIONS
T1
L1
C
CC - CONTACTOR COIL
CCH - CRANKCASE HEATER
F
H
CCH (OPTIONAL)
CC
R
S
S
R
OUTDOOR FAN
MOTOR
COMPRESSOR
ASCT
ASCT
(SEE NOTE 7)
C
C
T2
COMPRESSOR
CONTACTS
L2
T2
T3
T1
SEE NOTE 6
ASCT
(SEE NOTE 7)
BLACK
C
CRANKCASE
HEATER
(OPTIONAL)
BLACK
RED or YELLOW
F
C
BLACK
YELLOW
OUTDOOR
FAN MOTOR
S
R
S
L2 GRND
L2
L1
L1
T2
BLACK
710226C
START
RELAY
1
2
710226C
(Replaces 710226B)
GROUNDING
SCREW
START
CAPACITOR
3
Single Phase
(1 PHASE FIELD SUPPLY)
COMPRESSOR
C
R
BLACK or
BLACK WHITE
RED
YELLOW
T1
¢710226{¤
DUAL H
CAPACITOR
BLUE
ORANGE
BLACK
208/230V
BLACK
1. Couper le courant avant de faire letretien.
2. Employez uniquement des conducteurs en cuivre.
3. Ne convient pas aux installations de plus de 150 volt a la terre.
RED or RED BLACK
Split System Air Conditioner (Outdoor Section)
CONTACTOR
NOTES:
1. Disconnect all power before servicing.
2. For supply connection use copper coductors only.
3. Not suitable on systems that exceed 150 volts to ground.
4. For replacement wires use conductors suitable for 105° C
5. For ampacities and overcurrent protection, see unit rating plate.
6. Connect to 24 vac/40va/class 2 curcuit. See furnace/air handler installation
instructions for control circuit and optional relay/transformer kits.
7. Anti-Short Cylce 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 shown
using manufacturer’s approved kit. If not present, connect Yellow and Black wires per Note 6.
YELLOW or
YELLOW BLACK
WIRING DIAGRAM
wiring diagrams
Figure 4. Wiring Diagram for Single Phase Units (4 Ton)
11
YELLOW
Figure 5. Wiring Diagram for Single Phase Units (5 Ton)
FIELD WIRING
LOW VOLTAGE
HIGH VOLTAGE
LEGEND:
24 VOLT FIELD
CONNECTIONS
T1
L1
C
CC - CONTACTOR COIL
F
H
208/230V
CC
R
S
S
R
OUTDOOR FAN
MOTOR
COMPRESSOR
ASCT
ASCT
(SEE NOTE 7)
C
C
COMPRESSOR
CONTACTS
T2
L2
T2
T3
T1
SEE NOTE 6
ASCT
(SEE NOTE 7)
BLACK
YELLOW
Split System Air Conditioner (Outdoor Section) Single Phase
BLACK
RED
YELLOW
BLACK
S
L2 GRND
L2
L1
L1
T2
T1
BLACK
YELLOW
RED
START
RELAY
1
2
GROUNDING
SCREW
START
CAPACITOR
3
0211
711108B
(Replaces 711108A)
(1 PHASE FIELD SUPPLY)
COMPRESSOR
C
R
BLACK OR
BLACK WHITE
THIS IS A BAR CODE
H
C
F
C
OUTDOOR
FAN MOTOR
S
R
DUAL
CAPACITOR
BLUE
ORANGE
1. Couper le courant avant de faire letretien.
2. Employez uniquement des conducteurs en cuivre.
3. Ne convient pas aux installations de plus de 150 volt a la terre.
RED OR RED BLACK
NOTES:
1. Disconnect all power before servicing.
2. For supply connection use copper conductors only.
3. Not suitable on systems that exceed 150 volts to ground.
4. For replacement wires use conductors suitable for 105° C.
5. For ampacities and overcurrent protection, 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 (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 shown
using manufacturer’s approved kit. If not present, connect Yellow and Black wires per Note 6.
CONTACTOR
WIRING DIAGRAM
YELLOW OR
YELLOW BLACK
12
Figure 6. Wiring Diagram for 3 Phase Units (4 Ton)
13
S
R
LEGEND:
Capacitor
FIELD WIRING
LOW VOLTAGE
HIGH VOLTAGE
T3
Compressor
Contacts
L3
CCH
T1
L1
CCH - CRANKCASE HEATER
CC - CONTACTOR COIL
CONNECTIONS
CC
Compressor
24 VOLT FIELD
Outdoor
Fan
Motor
T2
C
L2
T1
C
MOTOR
OUTDOOR FAN
R
S
COMPRESSOR
T2
T3
NOTES:
1. Disconnect all power before servicing.
2. For supply connections use copper cundoctors only.
3. For replacement wires use conductors suitable for 105 deg. C.
4. For supply wire ampacities and overcurrent protection, see unit rating plate.
5. Connect to 24 vac/40 va/class 2 circuit. See furnace/air handler installation
instructions for control circuit and optional relay/transformer kits.
BLACK
BLACK
ORANGE
BLUE
BLACK
BLACK
BLACK
Split System Air Conditioner (Outdoor Section) Three Phase
WIRING DIAGRAM
L2
L2
T2
L3
L3
T3
1208
7108650
(Replaces 703608E)
SEE NOTE 5
BLACK
YELLOW
¢710865:¤
THREE PHASE FIELD SUPPLY
GND L1
L1
T1
YELLOW
GROUNDING LUG
CAPACITOR
YELLOW
RED
BLACK
1. Couper le courant avant de faire letretien.
2. Employez uniquement des conducteurs en cuivre.
CONTACTOR
Figure 7. Wiring Diagram for 3 Phase Units (5 Ton)
T1
C
R
S
COMPRESSOR
LEGEND:
CC - CONTACTOR COIL
MOTOR
T1
T2
T3
OUTDOOR FAN
CC
COMPRESSOR
L1
CONNECTIONS
R
OUTDOOR
FAN
MOTOR
T2
C
L2
24 VOLT FIELD
S
FIELD WIRING
LOW VOLTAGE
HIGH VOLTAGE
T3
CAPACITOR
COMPRESSOR
CONTACTS
L3
ORANGE
BLUE
BLACK
Split System Air Conditioner (Outdoor Section) Three Phase
L2
L2
T2
L3
L3
T3
THREE PHASE FIELD SUPPLY
GND L1
L1
T1
YELLOW
GROUNDING LUG
CAPACITOR
YELLOW
RED
BLACK
0211
711109B
(Replaces 711109A)
SEE NOTE 5
1. Couper le courant avant de faire letretien.
2. Employez uniquement des conducteurs en cuivre.
CONTACTOR
NOTES:
1. Disconnect all power before servicing.
2. For supply connections use copper conductors only.
3. For replacement wires use conductors suitable for 105° C.
4. For supply wire ampacities and overcurrent protection, see unit rating plate.
5. Connect to 24 vac/40 va/class 2 circuit. See furnace/air handler installation
instructions for control circuit and optional relay/transformer kits.
BLACK
WIRING DIAGRAM
YELLOW
14
Refrigerant Charging TABLES FOR
COOLING MODE OF OPERATION
Legend
NOTES:
Shaded boxes indicate flooded conditions and
should not be relied on to determine system
charge.
Rated design values. The suction pressure
will be lower than design value if indoor air
flow, entering dry bulb, or entering wet bulb
temperatures are lower than design.
1.All pressures are listed psig and all temperatures in °F
2.Discharge temperatures greater than charted values
indicate an undercharged system.
3.Discharge temperatures less than charted values
indicate an overcharged system.
OUTDOOR TEMPERATURE (°F)
Suct.
Press.
70
75
80
85
90
95
100
105
Liq.
Dis.
Liq.
Dis.
Liq.
Dis.
Liq.
Dis.
Liq.
Dis.
Liq.
Dis.
Liq.
Dis.
Liq.
Dis.
Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp.
66
177
153
68
179
158
193
157
162
210
70
181
163
196
72
184
168
198
167
212
166
227
165
74
187
171
200
172
214
171
229
170
243
204
175
217
175
231
174
245
174
260
173
221
178
234
178
247
178
262
177
276
80
237
182
251
182
264
182
278
181
293
181
82
241
186
254
186
267
186
280
185
295
185
257
190
271
190
284
189
297
188
274
194
287
194
301
193
291
198
304
198
307
202
76
78
161
84
169
86
88
177
90
92
Table 3. Charging Table for 4 Ton Units
OUTDOOR TEMPERATURE (°F)
Suct.
Press.
70
75
80
85
90
95
100
105
Liq.
Dis.
Liq.
Dis.
Liq.
Dis.
Liq.
Dis.
Liq.
Dis.
Liq.
Dis.
Liq.
Dis.
Liq.
Dis.
Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp. Press. Temp.
58
165
159
60
167
164
182
62
169
169
185
168
200
168
64
171
176
187
174
202
173
218
66
174
178
189
179
204
178
220
177
235
176
192
182
207
182
222
181
238
181
253
180
185
271
189
273
188
288
188
275
192
290
192
68
163
172
225
186
240
185
255
72
228
189
243
189
257
74
232
193
246
193
261
193
250
197
264
197
279
197
292
196
267
201
282
201
296
201
285
205
300
205
303
209
70
76
210
185
78
80
82
184
84
Table 4. Charging Table for 5 Ton Units
15
INSTALLATION / PERFORMANCE CHECK LIST
ELECTRICAL SYSTEM
INSTALLATION ADDRESS:
CITY_________________________
STATE_________________
UNIT MODEL #_________________________________________
UNIT SERIAL #_________________________________________
Unit Installed Minimum Clearances
per Figure 2 (page 5)?
YES
NO
Electrical connections tight?
YES
NO
Line voltage polarity correct?
YES
NO
Rated Voltage:____________________________________ VOLTS
L1-L2 Volts:______________________________________ VOLTS
L1-L3 Volts:______________________________________ VOLTS
L2-L3 Volts:______________________________________ VOLTS
INSTALLER NAME:
Avg. Volts:_______________________________________ VOLTS
CITY________________________
STATE_________________
% Volt imbalance:_________________________________ VOLTS
REFRIGERATION SYSTEM
Was unit given 24 hr warm up period
for crankcase heaters (if applicable)?
YES
Max. deviation of voltage
from avg. volts:____________________________________ VOLTS
NO
Stage-1 Liquid Pressure (high side)_________________________
Blower Motor HP:_________ Sheave Setting____________# Turns
Has the thermostat been calibrated?
YES
NO
Is the thermostat level?
YES
NO
Is the heat anticipator setting correct?
(If Applicable)
YES
NO
Stage-1 Liquid Temperature_____________________________ °F
Stage-1 Suction Pressure (low side)_________________________
REPLACEMENT PARTS
Final Unit Charge________________________________________
Replacement parts are available through all Nordyne distributors.
Please have the complete model and serial number of the unit
when ordering replacement parts.
Has the owner’s information been
reviewed with the customer?
Has the Literature Package been left
with the unit?
YES
YES
NO
NO
ELECTRICAL
Capacitors
Temperature Limit Switches
Compressors
Thermostats
Contactors
Time Delay Relays
Pressure Switches
Transformers
Relays
MOTORS
Blower Motor
Fan Motor
COMPONENTS
Blower Assembly
Fan Grille
Cabinet Panels
Filter/Driers
Expansion Valves
Specifications & illustrations subject to change without notice or incurring obligations.
O’ Fallon, MO | Printed in U.S.A. (01/13)
709227C (Replaces 709227B)
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