709183-0 S4BM 9SEER SS ii.indd

S4BM SERIES - FOR EXPORT ONLY
9 EER
USER’S MANUAL / INSTALLATION INSTRUCTIONS
R22 SPLIT SYSTEM AIR CONDITIONER - 3 PHASE
IMPORTANT
User, 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.
2
USER INFORMATION
Important Safety Information ....................................4
WARRANTY INFORMATION
Operating Instructions ...............................................4
Cooling Operation .....................................................4
Heating Operation .....................................................4
Operating the Air Conditioner for Automatic
Cooling and Heating ..................................................4
Operating the Indoor Blower Continuously ................4
Turning the Air Conditioner Off ..................................4
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.................................... 4
Troubleshooting......................................................... 4
INSTALLER INFORMATION
Important Safety Information ....................................5
Air Conditioner Maintenance................................... 11
Air Conditioner Installation .......................................6
General Information...................................................6
Before You Install this Unit .........................................6
Locating the Air conditioner .......................................6
Packaging Removal ...................................................6
Rigging & Hoisting .....................................................6
Rooftop ......................................................................6
Ground Level .............................................................7
Connecting Refrigerant Tubing between the
Indoor & Outdoor Unit ...............................................7
Component Functions ............................................. 11
Electrical Wiring..........................................................7
Pre - Electrical Checklist ...........................................7
Line Voltage ...............................................................8
Grounding..................................................................8
Unbalanced 3-Phase Supply Voltage ........................8
Thermostat Connections ...........................................9
Optional Electric Heater Kits .....................................9
Startup & Adjustments ..............................................9
Pre - Start Checklist ..................................................9
Start-up Procedures ..................................................9
Air Circulation - Indoor Blower ...............................9
Anti-Short Cycle Timer Protection ..........................9
System Cooling ....................................................10
System Heating ....................................................10
Refrigerant Charging ...............................................10
Charging Units in AC Mode when
Outdoor Temperature is Above 55° F ...................10
Replacement Parts ................................................... 11
Figures & Tables ....................................................... 12
Figure 4. S4BM Air Conditioner Dimensions ........ 12
Table 2. Unit Dimensions & Shipping Weights ..... 12
Table 3. Physical Data & Electrical Specs ............ 14
Electrical Information ............................................... 13
Figure 5. S4BM & S5BP Wiring Diagram ............. 14
Figure 6. Air conditioner T-stat Connections......... 15
Figure 7. NEC Electrical Conductor Charts.......... 16
Charging Charts - Cooling Only .............................. 17
Application Notes ................................................. 17
Nitrogen Charged Units ....................................... 17
Figure 8. Charging Chart for 7.5 Ton AC's
IP Units ................................................. 18
Figure 9. Charging Chart for 7.5 Ton Units
SI Units ................................................. 18
Figure 10. Charging Chart for 10 Ton AC's
Twinned - IP Units ............................... 19
Figure 11. Charging Chart for 10 Ton AC's
Commercial - IP Units ......................... 19
Figure 12. Charging Chart for 10 Ton AC's
Twinned - SI Units ............................... 20
Figure 13. Charging Chart for 10 Ton AC's
Commercial - SI Units ......................... 20
INSTALLATION / PERFORMANCE CHECKLIST ..... 24
3
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.
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 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.
4
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:
Your 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.
•
•
•
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.
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 filters for dust accumulation.
Check the outdoor unit and make sure it is clean and
not covered with grass or leaves.
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
kits may be used with this product. 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:
S4BM Split System Air conditioners leave
the factory with a nitrogen holding charge.
Follow all charging instructions for maximum
unit performance and efficiency. Only charge
the unit with the refrigerant listed on the unit
rating plate. Some local codes require licensed
installation/service personnel to service this
type of equipment. Refrigerant charging must be
done by qualified 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.
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 personal
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 nitrogen gas.Installation or
servicing should only be performed by qualified 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, fire extinguisher, etc.) when performing
brazing operations.
• This unit is designed for outdoor installations only and
should be located in a position as shown on page 6.
• 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.
5
AIR CONDITIONER INSTALLATION
General Information
The S4BM 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 A.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.
 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. 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.
• Overhead obstructions, 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.
6
18"
TOP OF UNIT
TO BE
UNOBSTRUCTED
18"
18"
18"
Figure 2. Clearance Requirements
Packaging Removal
Locate and remove all screws securing the unit to the
shipping skid. NOTE: To prevent damage to the tubing
connections, carefully remove the carton and user’s
manual from the equipment. Discard the shipping carton.
Rigging and Hoisting
WARNING:
To avoid the risk of property damage, personal
injury, or death, it is the rigger’s responsibility
to ensure that whatever means are used to hoist
the unit are safe and adequate.
• The lifting equipment must be adequate for the
load. Refer to Table 2 (page 12) for unit weights.
• The unit must be lifted from the holes in the
base rails using cables or chains.
• Spreader bars are required to protect the unit
and ensure even loading.
• Keep the unit in an upright position at all times.
• All panels must be securely in place during
rigging and hoisting.
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. The roof must be capable of handling the
weight of the unit. For unit weights, see Table 2 (page
12). Reinforce the roof if necessary.
• Secure optional mounting pad or frame to roof using
acceptable mechanical methods per local codes.
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 (page 6).
• A suitable mounting pad (Figure 3) 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.
2”
• 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 are listed in Table 3
(page 13) and the 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.
• 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.
ELECTRICAL WIRING
Figure 3. Ground Level Installation
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.
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 ordinaces
that take precedence.
Pre-Electrical Checklist:
 Verify that the voltage, frequency, and phase of the
supply source match the specifications on the unit
rating plate. Refer to Table 3 (page 13).
 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 (Figure 5, page 14). Inspect for loose
connections.
 Phase balance on 3 phase units must always be
checked. See Unbalanced 3-Phase Supply Voltage
section (page 8).
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 5 & 6 (pages 14
& 15). 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.
See Figure 7 (page 16).
• 380/420 Volt units are shipped from the factory wired
for 380 volt operation. For 415V or 420V operation,
remove the lead from the transformer terminal marked
380V and connect it to the terminal marked 415V.
• Optional equipment requiring connection to the power
or control circuits must be wired in strict accordance
of the, applicable local codes, and the instructions
provided with the equipment.
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. M e a s u r e t h e l i n e
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).
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.
8
AB = 451V
BC = 460V
AC = 453V
2. Determine the average voltage in the power supply.
In this example, the measured line voltages were
451, 460, and 453. The average would be 454 volts
(451 + 460 + 453 = 1,364 / 3 = 454).
3. Determine the maximum deviation:
Example:
From the values given in step 1, the BC voltage
(460V) is the greatest difference in value from
the average:
Highest Value
460 - 454 = 6
454 - 451 = 3
454 - 453 = 1
4. Determine percent of
voltage imbalance by
using the results from
steps 2 & 3 in the
following equation.
Grounding
WARNING:
Example:
% Voltage Imbalance = 100 x
Example:
100 x
6
= 1.32%
454
max voltage deviation
from average voltage
average voltage
The amount of phase imbalance (1.32%) 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%.
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. A typical commercial installation with an air
conditioner thermostat and air handler (with & without
an economizer) is shown in Figure 6 (page 15).
• 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 units low voltage terminal block. Recommended
wire gauge and wire lengths for typical thermostat
connections are listed in Table 1.
• 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.
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 handlers Technical
Service Literature.
Install the heater kits as directed by the instructions
supplied with the heater kit. Follow all cautions and
warnings as directed.
START UP & ADJUSTMENTS
Pre-Start Check List
 Verify the indoor unit is level and allows proper
condensate drainage.
 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 nitrogen holding charge has been purged
and the unit is properly charged with the refrigerant
listed on the rating label.
 Verify that the duct work is sealed to prevent air leakage.
 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:
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.
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 deenergizes.
9
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.
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:
S4BM 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 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.
10
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. For
final charges based on matched systems and specified
line lengths, see physical and electrical specifications
(Table 3, page 13).
• 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.
• Refrigerant charging charts (Figures 8 - 13, pages
18 - 20) are applicable only to matched assemblies of
NORDYNE equipment and listed airflows for the indoor
coil. S4BM 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 line sets which have a
“Schrader” depression device present to actuate the
valve.
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 the appropriate charging chart (Figures 8 - 13).
• 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.
COMPONENT FUNCTIONS
Anti-Short Cycle Timer (ASCT)
A protective short cycle timer is factory installed and located
in the control panel of the outdoor section. If power to the
compressor low voltage control circuit is interrupted, the
outdoor unit will not energize for approximately 5 minutes.
High Pressure Switch (HPS)
A high-pressure switch is factory-installed and located in
the liquid line internal to the outdoor unit. The switch is
designed to protect the system when very high pressures
occur during abnormal conditions. Under normal
conditions, the switch is closed. If the liquid pressure rises
above 425 psig (293 kPa), then the switch will open and
de-energize the outdoor unit. The switch will close again
once the liquid pressure decreases to 350 psig (241 kPa).
Please note that the switch interrupts the thermostat
inputs to the unit. Thus, when the switch opens and then
closes, there will be a 5 minute short cycling delay before
the outdoor unit will energize.
Low Pressure Switch (LPS)
A low-pressure switch is factory-installed and located in
the suction line internal to the outdoor unit. The switch is
designed to protect the compressor from a loss of charge.
Under normal conditions, the switch is closed. If the suction
pressure falls below 5 psig (34.4 kPa), then the switch
will open and de-energize the outdoor unit. The switch will
close again once the suction pressure increases above
20 psig (138 kPa). Please note that the switch interrupts
the thermostat inputs to the unit. Thus, when the switch
opens and then closes, there will be a 5 minute short
cycling delay before the outdoor unit will energize.
REPLACEMENT PARTS
Replacement parts are available through all Nordyne distributors.
Please have the complete model and serial number of the unit
when ordering replacement parts.
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
11
FIGURES & TABLES
DO NOT OBSTRUCT TOP OF UNIT
Allow 6' Minimum Clearance
W
D
H
Figure 4. S4BM Air Conditioner Dimensions
Model No.
S4BM-
Unit Weight ‡
Shipping
Weight
Lbs.
kg.
Lbs.
kg.
090G
346
156.9
377
171.0
120G
349
158.3
380
172.4
Unit Dimensions
Depth
in
cm
Width
in
cm
in
cm
37 1/2 95 1/4 37 1/2 95 1/4 44 1/4 112 3/8
* Includes shipping pallet and packaging
‡ Unit weight without packaging or field installed accessories.
Table 2. Unit Dimensions & Shipping Weights
12
Height
Shipping
Height*
in
cm
50
127
S4BM-090G &
B4SM-090G
9 E.E.R. - High Efficiency (380 Volt) - Three Phase (50Hz)
Performance Data
S4BM-090G
(TWINNED)
S4BM-120G &
B4SM-120G
S4BM-120G
(TWINNED)
Gross Cooling Capacity
94,800
97,600
122,000
122,500
NET Cooling Capacity
90,500
92,500
116,500
116,000
Rated Airflow (CFM)
3,000
2,800
4,000
3,600
Efficiency-E.E.R. (Btu/Watt)
10.6
10.3
9.4
9.5
Part Load Efficiency-I.E.E.R.
12.2
10.4
10.3
9.6
Volts-Phase-Hz
380-420 / 3 / 50
380-420 / 3 / 50
360-440
360-440
Total Amps
16.6
20.1
Min. Circuit Ampacity
21.8
27.3
35
45
Voltage Range (Min-Max)
Electrical Data
Maximum Circuit Delay Fuse (1)
Transformer VA (Secodary Voltage)
OD Coil
75 (24V)
75 (24V)
Area (ft.)
31.94
31.94
Rows-FPI
1-22
1-22
Tube Diameter
3/8 O.D.
3/8 O.D.
Volts-Phase-Hz
380-420 / 3 / 50
380-420 / 3 / 50
Qty
1
1
Horsepower
1
1
2.4
2.4
OD Fan Motor
Full Load Amps
Diameter/Pitch/# Blades
Component Data
30-22-3
30-26-3
870 / 6,800
850 / 7,200
380-420/3/50
380-420/3/50
1/Scroll
1/Scroll
ZR108KC
ZR144KC
RLA
15.5
19.9
LRA
111
118
Fan Blade
RPM/CFM
Voltage-Phase-Hz
Qty/Type
Model
Compressor Data
Stages of Capacity
1
1
Crankcase Heater
1 ea. / Band type
1 ea. / Band type
1 1/8”
1 1/8”
Refrigerant Suction Line-Length / O.D.
0 - 15 ft.
Liquid Line (all lengths - 5/8” O.D.)
15 - 25 ft.
Circuits (Qty) -1
26 - 75 ft.
1 3/8”
Refrigerant Charge
Factory Holding Charge
R-22 Ounces
Total System Charge with 25’ Lineset - Ounces (2)
Approximate Weight
pounds (kg)
1 1/8”
1 3/8”
1 3/8”
Inert Nitrogen Gas
315
1 1/8”
1 3/8”
340
Inert Nitrogen Gas
360
392
Net:
346 (156.9)
349 (158.3)
Ship:
377 (171.0)
380 (172.4)
NOTES:
Net capacity includes indoor blower motor heat deduction.
Gross capacity does not include indoor blower motor heat deduction.
Performance data based on operation at 380 Volts.
(1) HACR Type circuit breakers may be used.
(2) Add 9.0 oz. of refrigerant per 5ft. of additional lineset.
(3) Unit requires 1-3/8” to 1-1/8” reducer for use with 1-3/8" suction line.
Table 3. Physical & Electrical Specifications / Outdoor Units
13
14
Commercial Split System Air Conditioner (Outdoor section)
Figure 5. S4BM & S5BP Wiring Diagram
FIELD WIRING
LOW VOLTAGE
HIGH VOLTAGE
FACTORY WIRING
LOW VOLTAGE
HIGH VOLTAGE
Y
R
S
C
L2
L1
CAS
CC
T2
T3
CCH
L2
ASCT
C
L3
CC
ASCT ANTI SHORT CYCLE TIMER
CC
COMPRESSOR CONTACTOR
CAS
CONTACTOR AUXILLIARY SWITCH (1NO/1NC)
CCH COMPRESSOR CRANKCASE HEATER
HPS HIGH PRESSURE SWITCH WITH AUTO RESET
LPS
LOW PRESSURE SWITCH
CC
ASCT
24V
COMPRESSOR
T1
L3
THREE PHASE
OUTDOOR FAN
MOTOR
HIGH
LOW
PRESSURE PRESSURE
SWITCH
SWITCH
SINGLE PHASE
OUTDOOR FAN
MOTOR
CC
LEGEND:
R
L1
T3
CCH
L3
L2
GRD
L1
BLACK
BLACK
SEE NOTE 6
BLACK
AUX.
SWITCH
YELLOW
THREE PHASE
FIELD SUPPLY
COMPRESSOR
T2
T1
BLACK
RED
ORANGE
T3
L3
T2
L2
WHITE
BLACK
L2
24V
SECONDARY
GREEN
L1
380V
SEE NOTE 9
WHITE
BLACK
415V
24V
PRIMARY
Y
T3 T1 T2
T3
ANTI-SHORT
CYCLE
TIMER
BLACK
C
LPS
T2
BROWN
T1
¢711089?¤
60 Hz
TRANSFORMER
RED
BLACK
R
BROWN
YELLOW
YELLOW
YELLOW
YELLOW
CONTACTOR
HPS
GREEN
BLACK
RED
3 PHASE OUTDOOR MOTOR WIRING
L3
Three Phase
0310
7110890
1. Couper le courant avant de faire letretien.
2. Employez uniqement des conducteurs en cuivre.
460V 230V
208V PRIMARY
BLACK
SEE NOTE 7&8
50 Hz
TRANSFORMER
CONNECTIONS
L1
T1
NOTES:
1. Disconnect all power before servicing.
2. For supply connections, use copper conductors only.
3. Furnace/Air Handler w/factory equipped 24 V control circuit transformers, should be
modified/rewired to ONLY use 24V transformer from outdoor section. See installation
instructions for typical modifications.
4. For replacement wires, use conductors suitable for 105° C
5. For ampacities and overcurrent protection, see unit rating plate.
SINGLE PHASE OUTDOOR FAN MOTOR
6. Wires connected to normally closed contacts.
BLACK
7. Transformer primary connection will match unit rated voltage.
PURPLE
S
8. For 208V operation remove white wire from 230V tap and place
on 208V tap.
9. For 415/420V operation remove white wire from 380V tap and
ORANGE
C
place on 415V tap.
R
TEST
WIRING DIAGRAM
ELECTRICAL INFORMATION
NOTE: C &W2 to be connected to electric heat.
TO FIELD
SUPPLIED DISCONNECT
GND
SINGLE STAGE
HEAT/COOL THERMOSTAT
L1
R W C G Y
L2
OPTIONAL
L3
BLOWER
MOTOR
OPTIONAL
FREEZESTAT
GREEN
BROWN
G
C
W2
W1
O
Y
R
C
Y
R
BLACK
See Note
BLACK
TERMINAL
BOARD
AIR HANDLER
SECTION
OUTDOOR
SECTION
SINGLE STAGE HEAT/COOL THERMOSTAT- NO ECONOMIZER
NOTES:
TO FIELD
SUPPLIED DISCONNECT
GND
SINGLE STAGE
HEAT/COOL
THERMOSTAT
L1
R W C G Y
L2
OPTIONAL
L3
C
Y
R
FREEZESTAT
B
Y1
BLACK
G
C
W2
W1
O
Y
R
GRY
W7459A
GRY-90”
A
7
B
9
GRN-18”
GRN-18”
VIO-14”
4
1
GRN
M7415A
TR
TR 1
TR
6
3
s
BLU-14”
C7400A
TR1
So
JUMPER
WIRE
Sr
BLK
Note 1
TB-11
BLK-12”
YEL
Note 2
GREEN
TERMINAL
BOARD
OUTDOOR
BLOWER
MOTER
Note 4
BLACK
1. C & W2 to be connected to electric heat.
2. Remove BLACK wire from air handler low voltage terminal board
Y terminal and connect to YELLOW wire from economizer.
3. 2nd Stage refrigerant cooling with optional economizer installed. A 2
stage thermostat is required for simultaneous operation of the economizer
and refrigerant system. Connect Y2 from 2 stage thermostat to BLUE
wire from economizer. If installing an economizer in this unit, refer to the
Economizer installation instructions for proper set up and operation.
4. Heat Pump Economizer Relay. For heat pump applications only, connect B
from thermostat to GREY wire from Economizer. Required for proper operation
of an economizer (optional) in the heat pump Heating mode. If installing an
economizer in this unit, refer to the Economizer installation instructions for
proper set up and operation.
5
YEL-18”
Note 3
Y2
WHITE
ORN
BLUE
2
3
4
RED-12”
T
T1
P
P1
RED
C7150
M.A.S.
1S
2K
1S
RED
AIR HANDLER
SECTION
1
OPTIONAL
ECONOMIZER
GRY-12”
BLK-12”
BLU-12”
T
T1MA
P1
MIN.
P POT.
SECTION
SINGLE STAGE HEAT/COOL THERMOSTAT- WITH ECONOMIZER
Figure 6. Typical Air conditioner Thermostat Connections
15
Excerpts from United States National Electric Code, 2005 handbook - based on NFPA 70
Partial Table 310.16 Allowable Ampacities of Insulated Conductors (0-2000 Volts)
- Not more then 3 current carrying conductors in cable or raceway
- Based on Ambient Temp of 30˚C
Copper Wire Only
Temperature Rating of Conductor
Size
AWG
or
kcmil
Size
60˚C
75˚C
90˚C
AWG
or
kcmil
14
12
10
8
6
4
3
2
1
1/0
2/0
3/0
20
25
30
40
55
70
85
95
110
125
145
165
20
25
35
50
65
85
100
115
130
150
175
200
25
30
40
55
75
95
110
130
150
170
195
225
14
12
10
8
6
4
3
2
1
1/0
2/0
3/0
How to Estimate Unit Supply Wire Requirements:
1) Determine Nominal Input Voltage
2) Estimate Length of Wire from Breaker to Unit Disconnect
3) Find Unit MCA for desired configuration
4) Using the minimum wire size based on the unit MCA, calculate the
% Voltage Drop to determine the initial wire gauge. The %VD should
be 3% or less at the unit
5) Verify Unit Voltage is within the Appliances min/max limits
6) Verify that the Wire ampacity (corrected for temperature & the # of
conductors) is above the Appliances MCA
7) Based on final wire gauge selection, determine conduit size. Refer
to NEC for details and allowable fill rate
8) Based on Appliance MOP and final wire selection, make selection of
Appliance branch circuit protection
Amb. Temperature Correction Factors
Temperature Rating of Conductor
Amb. Temp
Amb. Temp
(˚C)
60˚C
75˚C
90˚C
(˚F)
21-25
26-30
31-35
36-40
41-45
46-50
51-55
1.08
1.00
0.91
0.82
0.71
0.58
0.41
1.05
1.00
0.94
0.88
0.82
0.75
0.67
1.04
1.00
0.96
0.91
0.87
0.82
0.76
70-77
78-86
87-95
96-104
105-113
114-122
123-131
Partial Table 310.15(B)(2)(a) Adjustment factors for more than three current-carrying conductors
in a raceway or cable
# of Current-Carrying Conductors
Amount to adjust values in Table
310.16 after correction for Ambient
Temperature (if necessary)
4 to 6
7 to 9
80%
70%
Partial Table 9 Effective Impedance for 600V Cables, 3Ø, 60 Hz, 75˚C - 3 single current-carrying conductors in conduit
Uncoated Copper Wire Only
Effective Impedance (Z) at 0.85 PF
 to Neutral / 1000 ft
AWG
or
kcmil
PVC
Conduit
Aluminum
Conduit
Steel
Conduit
14
12
10
8
6
4
3
2
1
1/0
2/0
3/0
2.7
1.7
1.1
0.69
0.44
0.29
0.23
0.19
0.16
0.13
0.11
0.088
2.7
1.7
1.1
0.69
0.45
0.29
0.24
0.19
0.16
0.13
0.11
0.092
2.7
1.7
1.1
0.70
0.45
0.30
0.24
0.20
0.16
0.13
0.11
0.094
Voltage Drop Line-to-Neutral
Voltage Drop Line-to-Line
%Voltage Drop
=
= Table 9 Value ×
Circuit Length
× Unit MCA
1,000 ft
= Voltage Drop Line-to-Neutral × 3
Voltage Drop Line-to-Line
× 100
NomLineVoltage
The above tables and recommended procedures are provided for reference only, for complete details refer to the current
version of the National Electric Code, the applicable local codes & ordinances, or consult a qualified professional.
Figure 7. NEC Electrical Conductor Charts
16
S4BM CHARGING CHARTS - COOLING ONLY
Application Notes on the Use of Charging Charts
• This equipment’s cooling system contains refrigerant under high pressure. Always use safe and
environmentally sound methods when handling refrigerant handling or servicing the unit. Review the
factory literature and safety warnings prior to servicing.
• When repairing system leakages, always use a nitrogen (inert) gas to protect the refrigerant system and pressure
check the repair before re-charging. Always replace the filter-dryers when performing any repair to the refrigeration
system with one capable of acid removal. After completing the repairs, evacuate the system to 350 - 500 microns
and weigh in the refrigerant to the amount specified on the unit rating label.
• All S4BM-090/120 units are shipped from the factory with a nitrogen holding charge. Inspect the unit rating label
to determine the units information prior to working on the system. DO NOT mix different refrigerants or charge
the unit with a refrigerant not listed on the unit rating label.
• Charging charts are valid for a variety of indoor, return air conditions and are most highly influenced by the outdoor
ambient temperature, outdoor fan operation and the unit operating voltage. Before using these charts, ensure
the unit is in a stable operating mode. As shown in the charging charts (Figures 8 - 10, pages 18 - 19), the ideal
system sub-cooling can vary over the range of operation. Reference the charts to determine the ideal amount of
sub-cooling for a given liquid pressure. Units charged to other values will not perform at the rated unit efficiency
(EER) or rated Coefficient of Performance (COP) in heating mode.
• To inspect a systems operation, using quality instruments, match the measured liquid temperature to the units
chart. The measured liquid pressure reading should be within 3% of the charts value for most installations.
• For systems that are operating with more than a 5% deviation, inspect the unit for the proper voltage and phase
balance and the refrigeration system for leaks.
• Units that are operating at less then 95% of the nominal voltage or with a 2% phase imbalance may see a more
significant deviation than the amount stated above.
• DO NOT use the charts in systems that have a fan cycling under low-ambient control. Refer to the low-ambient
kit instructions for more information. (If applicable)
Nitrogen Charged Units - Installing the Initial Charge
The following procedures should be used to install the initial unit charge on units that are factory shipped with a
nitrogen holding charge:
1. Read all installation instructions first.
2. Complete any brazing operations (e.g. split sysytem line sets).
3. Purge the nitrogen holding charge.
4. Evacuate the unit to 350 - 500 microns.
5. Allow the unit to remain under vacuum for at least 30 minutes.
6. Inspect the unit rating plate for the proper type of refrigerant and quantity for a 25ft. (7.62m) lineset. Add or
subtract 9 oz. for each 5ft. (1.52m) of lineset length for the actual unit installation.
7. Weigh in the proper amount of new (or reclaimed) refrigerant.
17
7.5 TON -UNIT CHARGING CHARTS
S4BM-090G Charging Chart
B4SM-090G, 20lbm Factory TXV, R-22
420
400
380
Remove Charge when above solid line
360
Liquid Pressure (psig)
340
320
300
280
260
240
220
R-22 Saturaon Line
200
180
160
140
Add Charge when below solid line
120
100
50
55
60
65
70
75
80
85
90
95 100 105 110 115 120 125 130 135
Liquid Temperature (° F)
Figure 8. Charging Chart for 7.5 Ton, 380V Units - IP Units
S4BM-090G Charging Chart
B4SM-090G Factory TXV’s, 9.0719 kg, R-22
3000
2750
Remove Charge when above solid line
Liquid Pressure (kPa)
2500
2250
2000
1750
1500
R-22 Saturaon Line
1250
1000
Add Charge when below solid line
750
500
5
10
15
20
25
30
35
40
45
50
Liquid Temperature (° C)
NOTE: 1 ounce-mass (ozm) = 28.35 grams (g)
Figure 9. Charging Chart for 7.5 Ton, 380V Units - SI Units
18
55
60
10 TON UNIT CHARGING CHARTS - IP UNITS
S4BM-120G Charging Chart
Twinned B5BX-060K, 0.093 ID Restrictors, R-22
420
400
380
Remove Charge when above solid line
360
Liquid Pressure (psig)
340
320
300
280
260
240
220
R-22 Saturaon Line
200
180
160
140
Add Charge when below solid line
120
100
50
55
60
65
70
75
80
85
90
95 100 105 110 115 120 125 130 135
Liquid Temperature (° F)
Figure 10. Charging Chart for 10 Ton, 380V Units - Twinned
S4BM-120G Charging Chart
B4SM-120G & Factory TXV Setting, 23lbm, R-22
420
400
380
Remove Charge when above solid line
360
Liquid Pressure (psig)
340
320
300
280
260
240
220
R-22 Saturaon Line
200
180
160
140
Add Charge when below solid line
120
100
50
55
60
65
70
75
80
85
90
95 100 105 110 115 120 125 130 135
Liquid Temperature (° F)
Figure 11. Charging Chart for 10 Ton, 380V Units - Commercial
19
10 TON UNIT CHARGING CHARTS - SI UNITS
S4BM-120G Charging Chart
B5BX-060K , 0.093 ID Restrictors, R-22
3000
2750
Remove Charge when above solid line
Liquid Pressure (kPa)
2500
2250
2000
1750
1500
R-22 Saturaon Line
1250
1000
Add Charge when below solid line
750
500
5
10
15
20
25
30
35
40
45
50
55
60
Liquid Temperature (° C)
NOTE: 1 ounce-mass (ozm) = 28.35 grams (g)
Figure 12. Charging Chart for 10 Ton, 380V Units - Twinned
S4BM-120G Charging Chart
B4SM-120G Factory TXV’s, 10.433 kg, R-22
3000
2750
Remove Charge when above solid line
Liquid Pressure (kPa)
2500
2250
2000
1750
1500
R-22 Saturaon Line
1250
1000
Add Charge when below solid line
750
500
5
10
15
20
25
30
35
40
45
50
Liquid Temperature (° C)
NOTE: 1 ounce-mass (ozm) = 28.35 grams (g)
Figure 13. Charging Chart for 10 Ton, 380V Units - Commercial
20
55
60
21
22
23
INSTALLATION / PERFORMANCE CHECK LIST
REFRIGERATION SYSTEM:
INSTALLATION ADDRESS:
CITY ________________________
STATE ________________
Was unit given 24 hr warm up period
for crankcase heaters?
YES
NO
Stage-1 Liquid Pressure (high side) ________________________
UNIT MODEL # ________________________________________
UNIT SERIAL # _______________________________________
Stage-1 Liquid Temperature ____________________________ °F
Unit Installed Minimum clearances per
Figure 2 (page 6)?
Stage-1 Suction Pressure (low side) ________________________
YES
NO
INSTALLER NAME:
Final Unit Charge_______________________________________
CITY _______________________
STATE ________________
ELECTRICAL SYSTEM:
Electrical connections tight?
YES
NO
Line voltage polarity correct?
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
Rated Voltage: ___________________________________ VOLTS
L1-L2 Volts: _____________________________________ VOLTS
L1-L3 Volts: _____________________________________ VOLTS
L2-L3 Volts: _____________________________________ VOLTS
Avg. Volts: ______________________________________ VOLTS
Max. deviation of voltage
from avg. volts:___________________________________ VOLTS
% Volt imbalance: ________________________________ VOLTS
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
¢7091835¤
O'Fallon, MO
7091830
7091830
Specifications and illustrations subject to change
without notice or incurring obligations.
Printed in U.S.A. (04/10)
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