Page 1
INSTALLATION AND
MAINTENANCE INSTRUCTIONS
(2,4)SA13 Series
Electric Cooling Package Unit
WARNING
Improper installation, adjustment, alteration, service, or maintenance can cause injury or
property damage. Refer to this manual. For assistance or additional information, consult a
qualified installer or service agency.
WARNING
Installation and servicing of air conditioning
equipment can be hazardous due to internal
refrigerant pressure and live electrical components. Only trained and qualified service
personnel should install or service this equipment. Installation and service performed by
unqualified persons can result in property
damage, personal injury, or death.
WARNING
If this unit is to be installed in a mobile or manufactured home application, the ductwork must
be sized to achieve static pressures within the
manufacturer’s guidelines. All other installation
guidelines must also be followed. Failure to do
so may result in equipment damage, personal
injury, and improper performance of the unit.
*48392M005*
WARNING
Sharp metal edges can cause injury. When
installing the unit, use care to avoid sharp
edges.
TABLE OF CONTENTS
INSTALLATION ...................................... 2
OPERATION .......................................... 7
MAINTENANCE..................................... 8
WIRING DIAGRAM ................................ 9
WARRANTY ........................................ 10
Manufactured By
A.A.C.
A Lennox International Inc. Company
421 Monroe Street
Bellevue, OH 44811
CAUTION
The installation of this appliance must conform to the requirements of the National Fire Protection Association;
the National Electrical Code, ANSI/NFPA No. 70 (latest edition) in the United States; the Canadian Electrical
Code Part 1, CSA 22.1 (latest edition) in Canada; and any state or provincial laws or local ordinances. Local
authorities having jurisdiction should be consulted before installation is made. Such applicable regulations or
requirements take precedence over the general instructions in this manual.
# 48392M005 Page 1
Save these instructions for future reference
Page 2
INSTALLATION
Location
These instructions explain the recommended method of
installation of the SA electric cooling unit and associated
electrical wiring.
This unit is designed and approved for use as a selfcontained air-to-air air conditioning system.
The units are factory equipped with a transformer and
blower control for applications without auxiliary heat.
Electric heat accessory kits (PHK) can be ordered for field
installation of additional heat where required.
These instructions, and any instructions packaged with
mating components and/or accessories, should be carefully read prior to beginning installation. Note particularly
any CAUTIONS or WARNINGS in these instructions and
all labels on the units.
These instructions are intended as a general guide only, for
use by qualified personnel and do not supersede any national
or local codes in any way. Compliance with all local, state,
provincial, or national codes pertaining to this type of
equipment should be determined prior to installation.
IMPORTANT: This product has been designed and manufactured to meet ENERGY STAR criteria for energy efficiency.
However, proper refrigerant charge and proper air flow are
critical to achieve rated capacity and efficiency. Installation
of this product should follow the manufacturer’s refrigerant
charging and air flow instructions. Failure to confirm
proper charge and airflow may reduce energy efficiency and shorten equipment life.
The unit is designed to be located outdoors with sufficient
clearance for free entrance to the air inlet and discharge air
openings. The location must also allow for adequate
service access.
The unit must be installed on a solid foundation that will not
settle or shift. Adequate structural support must be provided. Maintain minimum clearances as shown in Figure 1
and Table 1 and install the unit in level position. Isolate the
base from the building structure to avoid possible transmission of sound or vibration into the conditioned space.
Using Accessory Lift Kit
Spreaders
(Field Supplied)
Lifting Bracket
Accessory
Sheet Metal
Screw
To avoid possible
damage to unit
panels from lifting
clevis, place
packing material
between clevis
and panels before
lifting unit.
Inspection of Shipment
Upon receipt of equipment, carefully inspect it for possible
shipping damage. If damage is found, it should be noted on
the carrier’s freight bill. Take special care to examine the
unit inside the carton if the carton is damaged. File a claim
with the transportation company.
If any damages are discovered and reported to the carrier
DO NOT INSTALL THE UNIT, as claim may be denied.
Check the unit rating plate to confirm specifications
are as ordered.
Limitations
The unit should be installed in accordance with all national
and local safety codes.
Limitations of the unit and appropriate accessories must
also be observed.
The unit must not be installed with any ductwork in the
outdoor air stream. The outdoor fan is not designed to
operate against any additional static pressure.
Figure 1
Avoid placing the unit near quiet areas such as
sleeping quarters or study rooms. Normal operating
sound levels may be objectionable if the unit is placed
near certain rooms.
Do not permit overhanging structures or shrubs to
obstruct condenser air discharge inlet or outlet.
For improved start-up performance, the indoor coil
should be washed with suitable detergent to remove
any residue from manufacturing processes.
Exercise care when moving the unit. Do not remove any
packaging until the unit is near the place of installation. An
accessory lift kit can be purchased to aid in rigging (see
Figure 1). Spreaders whose length exceed the largest
dimension across the unit must be used across the top
of the unit. Recommended spreader length: 3 ton and smaller
package units – 44", 3.5 ton and larger units – 54".
Page 2 # 48392M005
Page 3
Unit
Drain Connection
Positive Liquid Seal Required
3.00" Min.
1.00" Min.
12.00"
Max.
Minimum Clearance Requirements
oT
elbitsubmoC
lairetaM
tnorF"0"84"3
roF
ecivreS
roF
Clearances
All units require certain clearances for proper operation and
service. Refer to Table 1 for the minimum clearances to
combustibles as well as minimum clearances necessary
reporP
noitarepO
for servicing and proper unit operation.
In the U.S., units may be installed on combustible floors
made from wood or class A, B, or C roof covering material.
In Canada, units may be installed on combustible floors.
raeR "0 "42 "3
resnednoC
dnE
rewolB
dnE
poT"0"63"63
"0"42"3
"0 "03 "0
Table 1
Units may also be moved or lifted with a forklift while still
in the factory-supplied packaging. The lengths of the
forks of the forklift must be a minimum of 42".
CAUTION
Before lifting a unit, make sure that the weight
is distributed equally on the cables so that it
will lift evenly.
Service Access
Access to all serviceable components is provided by four
removable panels: filter compartment, blower compartment, heater compartment, and top panel.
Condensate Drain
The SA package unit is equipped with a 3/4" FPT coupling
for condensate line connection. Plumbing must conform to
local codes. Use a sealing compound on male pipe threads.
The condensate drain line must be properly trapped
and routed to a suitable drain. See Figure 3 for proper
drain arrangement. The drain line must pitch to an open
drain or pump to prevent clogging of the line. Seal around
the drain connection with suitable material to prevent air
leakage into the return air system.
Typical Condensate Drain Connection
Roof Curb Installation
If a roof curb is used, follow the manufacturer’s Installation
Instructions and be sure that all required clearances are
observed (see following Clearances section).
Roof Curb Assembly
Figure 3
Ductwork
Ductwork should be designed and sized according to the
methods in Manual Q of the Air Conditioning Contractors of
America (ACCA).
# 48392M005 Page 3
Figure 2
A closed return duct system shall be used. This shall not
preclude use of economizers or outdoor fresh air intake. It
is recommended that supply and return duct connections
at the unit be made with flexible joints.
Page 4
The supply and return air duct systems should be designed for the CFM and static requirements of the job.
They should not be sized by matching the dimensions
of the duct connections on the unit.
Outdoor ductwork must be insulated and waterproofed.
clean or replaced. Dirty filters will reduce the airflow of the
unit. Filters should be sized in accordance with Table 2.
Minimum Required Surface Area
for Disposable Filters
Equipment is shipped for side ductwork connection. The
unit can be converted to bottom ductwork connection by
removing the duct covers located over the bottom duct
openings and placing these covers over the side duct
openings (see Figure 4).
To remove the bottom duct cover over supply opening:
1. Remove screw on cover nearest side opening.
2. Lift end of cover slightly and push to slide back screw/
pin free from duct flange.
3. Slide duct cover out the side duct opening.
Removing Bottom Duct Covers
2
1
1. Remove screw and lift.
2. Slide cover to free back pin.
Base
Figure 4
CAUTION
gnilooClanimoN
000,4276.2
000,03 33.3
000,6300.4
000,24 76.4
000,8433.5
000,06 76.6
aerAretliF
).tf.qs(
Table 2
Electrical Wiring
WARNING
Line voltage is present at all components when
unit is not in operation on units with single pole
contactors. Disconnect all remote electric
power supplies before opening access panel.
Unit may have multiple power supplies. Failure
to disconnect all power supplies could result in
personal injury or death.
When fastening ductwork to side duct flanges
on unit, insert screws through duct flanges
only; do not insert screws through casing. If
using bottom duct work, do not use screws to
secure ductwork to bottom duct opening
under drain pan side. Using screws to secure
bottom duct may damage drain pan.
Filters
All wiring should be done in accordance with the
National Electrical Code, ANSI/NFPA No. 70 (latest
edition); Canadian Electrical Code Part 1, CSA C22.1
(latest edition); or local codes where they prevail. Use
wiring with a temperature limitation of 75°C minimum. Run
the 208 or 230 volt, 60 hertz electric power supply through
a fused disconnect switch to the connection box of the unit
and connect as shown in the wiring diagram located on the
inside of the control access panel.
CAUTION
Air filters are to be used with this heating/cooling unit.
Filters are not factory supplied in the unit. However, a filter
frame accessory is available from the manufacturer that
allows filters to be installed within the unit. If the filter
frame accessory is not used, a filter must be installed in
the duct work by the installer. Filters must always be
installed ahead of the evaporator coil and must be kept
Page 4 # 48392M005
When connecting electrical power and control
wiring to the unit, waterproof type connectors
must be used so that water or moisture cannot
be drawn into the unit during normal operation.
Page 5
WARNING
Unit must be grounded in accordance with
national and local codes. Failure to ground unit
properly can result in personal injury or death.
Electrical Access
Heater Power Entry
Power supply to the unit must be N.E.C. Class 1, and must
comply with all applicable codes. A fused disconnect switch
should be field provided for the unit. The switch must be
separate from all other circuits.
If any of the wire supplied with the unit must be replaced,
replacement wire must be of the type shown on the wiring
diagram. Electrical wiring must be sized to carry minimum
circuit ampacity marked on the unit. Use copper conduc-
tors only. Each unit must be wired with a separate branch
circuit and be properly fused.
Typical Wiring Connections
THERMOSTAT
ECONOMIZER
NOT
INSTALLED
CAUTION
Do not connect connections except when
required by the indoor thermostat. Refer to the
C
thermostat installation instructions.
RR
W
G G
OUTDOOR UNIT
CC
YY Y1
W1
W2
Thermostat
Thermostat
The room thermostat should be located on an inside wall
where it will not be subject to drafts, sun exposure, or heat
from electrical fixtures or appliances. Follow the
THERMOSTAT
CC
W
GG
Y2
OUTDOOR UNIT
RR
Y
W1
W2
Entry
Line Voltage
ECONOMIZER
BLUE
WHITE
YELLOW
GREEN
BLACK
Entry
Figure 5
CAUTION
Do not connect connections except when
required by the indoor thermostat. Refer to the
C
thermostat installation instructions.
L2 L1
POWER WIRING
208/230-1-60
POWER WIRING
24V CONTROL WIRING
(NEC CLASS 2)
* W1, W2 CAN BE USED TO STAGE ELECTRIC
HEAT ACCESSORY ON MODELS.15 & 20 KW
* 5 & 10 KW HEATER ACCESSORY FUNCTION
W1 ONLY.OFF
TYPICAL WIRING CONNECTION
(90°C MIN. WIRE)
1 PHASE
GROUND
SCREW
POWER WIRING
200/230-3-60, 460/575-3-60
(90°C MIN. WIRE)
POWER WIRING
24V CONTROL WIRING
(NEC CLASS 2)
* W1, W2 CAN BE USED TO STAGE ELECTRIC
HEAT ACCESSORY ON 15 & 20 KW MODELS.
* 10 KW HEATER ACCESSORY FUNCTION OFF
W1 ONLY.
TYPICAL WIRING CONNECTION
3 PHASE
L1L2L3
GROUND
SCREW
Figure 6
# 48392M005 Page 5
Page 6
manufacturer’s instructions enclosed with thermostat for
general installation procedure. Color-coded insulated wires
(#18 AWG) should be used to connect thermostat to unit.
Four wires are required for cooling.
Compressor
Heater Kit Accessory Installation
Units are shipped with compressor mountings factoryadjusted and ready for operation. Caution: Do not loosen
compressor mounting bolts.
Heater Kit Accessory (if used)
The unit is fully equipped for cooling operation without
auxiliary heat. A heater kit accessory may also be used.
To install the heater kit accessory (see Figure 7):
1. Disconnect the power and remove the heater compartment access panel.
2. Disconnect the plug separating the high voltage wire
harness. Remove the high voltage wire harness plug
and discard.
3. Remove the heater blockoff by removing the four
screws holding it in place.
4. Insert the heater into the control panel and fasten in
the same mounting holes.
5. Plug the heater wiring harness into the wire harness on
the control assembly. Field wiring of the auxiliary
heater is separate from the unit power supply. Wire the
power supply wiring for the heater to the appropriate
connections on the heater kit.
6. Replace the heater compartment access panel and
reconnect the power.
Removal of Unit from Common Venting System
When an existing furnace is removed from a common venting
system serving other appliances, the venting system is likely
to be too large to properly vent the remaining attached
appliances. The following test should be conducted with each
appliance while the other appliances connected to the
common venting system are not in operation.
1. Seal any unused openings in the common venting
system.
Heater
Blockoff
Heater
Compartment
Access
Panel
Heater Kit
Figure 7
are located and other spaces in the building. Turn on
clothes dryers and any appliance not connected to the
common venting system. Turn on exhaust fans, such
as range hoods and bathroom exhausts, so they will
operate at maximum speed. Do not operate a summer
exhaust fan. Close fireplace dampers.
4. Following the lighting instructions, place the unit being
inspected in operation. Adjust the thermostat so the
appliance will operate continuously.
5. Test for spillage at the draft control relief opening after
5 minutes of main burner operation. Use the flame of a
match or candle.
6. Follow the preceding steps for each appliance connected to the common venting system.
7. After it has been determined that each appliance
remaining connected to the common venting system
properly vents when tested as outlined above, return
doors, windows, exhaust fans, fireplace dampers, and
any other fuel burning appliance to their previous
condition of use.
8. If improper venting is observed during any of the
above tests, the common venting system must be
corrected. See National Fuel Gas Code, ANSI
Z223.1 (latest edition) or CAN/CGA B149.1 & .2
Canadian Installation Codes to correct improper
operation of common venting system.
2. Visually inspect the venting system for proper size
and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion, or other deficiencies which could cause an unsafe condition.
3. Insofar as is practical, close all building doors and
windows between the space in which the appliances
remaining connected to the common venting system
Page 6 # 48392M005
Page 7
OPERATION
Sequence of Operation
Cooling
Upon cooling demand, the thermostat closes circuit R and Y.
Closing R and Y closes the unit contactor, starting the
compressor and outdoor fan. The thermostat automatically
closes R to G circuit which also brings on the indoor blower at
the same time. Upon satisfying cooling demand, the thermostat will open the above circuits and open the main contactor,
stopping the compressor and outdoor fan. If the unit is
equipped with a delay timer, the blower will continue to
operate for 90 seconds which improves system efficiency.
Circulating Air Blower
The circulating air blower is controlled by a timing circuit in the
blower control. Timings are not adjustable.
There is no blower “on” delay after a call for heating or
cooling. Blower “off” delay is 90 seconds after the thermostat is satisfied.
Cooling System Performance
For maximum performance of the cooling system, operating temperatures and pressure should be checked. Superheat should be determined at Standard ARI test conditions
of 82°F outdoor and 80°F indoor dry bulb/67°F wet bulb. If
superheat measured deviates from values found in Table 3,
refrigerant charge should be adjusted accordingly for
maximum performance.
Suction Superheat
taehrepuSnoitcuS
snoitidnoCIRA@
eziS
22R A014
42°22°51
03 °02 °51
63°02°21
24 °02 °21
BWDI°76/BDDI°08-DO°28
06,84°02°01
Table 3
# 48392M005 Page 7
Page 8
MAINTENANCE
Owner Record
WARNING
ELECTRICAL SHOCK, FIRE,
OR EXPLOSION HAZARD
Failure to follow the safety warnings exactly
could result in dangerous operation, serious
injury, death, or property damage.
Improper servicing could result in dangerous
operation, serious injury, death, or property
damage.
• Before servicing, disconnect all electrical
power to unit.
• When servicing controls, label all wires prior
to disconnecting. Reconnect wires correctly.
• Verify proper operation after servicing.
Periodic inspection and maintenance normally consists of
changing or cleaning the filters and cleaning the outdoor coil.
On occasion, other components may also require cleaning.
Model # _________________________________
Serial # _________________________________
Installation Date ___________________________
Installed by:
Dealer __________________________________
Address _________________________________
Telephone # ______________________________
License # ________________________________
Filters
Filters should be checked at least every 6 weeks. Disposable filters should be replaced when dirty, and cleanable
filters should be cleaned regularly. It is important to keep
the air filters clean, as dirty filters can restrict airflow and
the blower motor depends upon sufficient air flowing
across and through it to keep from overheating.
Motors
Indoor and outdoor fan and vent motors are permanently
lubricated and require no maintenance.
Outdoor Coil
Dirt and debris should not be allowed to accumulate on the
outdoor coil surface or other parts in the air circuit. Cleaning should be as often as necessary to keep coil clean.
Use a brush, vacuum cleaner attachment, or other suitable
means. If water is used to clean the coil, be sure the power
to unit is shut off prior to cleaning. Care should be used
when cleaning the coil so that the coil fins are not
damaged.
Do not permit the hot condenser air discharge to be
obstructed by overhanging structures or shrubs.
Page 8 # 48392M005
Page 9
P-6
WHT
W1
GRN
G
RED
R
YEL
Y
THERMOSTAT
BLU
C
S1
P-5
Settings
Factory Shipped
YEL
W1 & W2 CAN BE USED TO STAGE ELECTRIC HEAT ACCESSORY ON 15 & 20KW MODELS.
5, 7.5 & 10KW HEATER ACCESSORIES FUNCTION OFF W1 ONLY.
ELECTRIC SHOCK HAZARD. UNIT MUST BE GROUNDED
IN ACCORDANCE WITH NATIONAL AND LOCAL CODES.
WARNING-
NOTE:
YEL
Unit
42 LOW
36 HIGH
30 MED
24 LOW
Cooling Input (BLK)
48 MED
60 HIGH
BLOWER SPEED CHART
S4
SWITCH
(IF USED)
HIGH PRESSURE
YEL
BLU
K1
24V
BLK
BLU
GRN
G
FUSE
XFMR-R
BLU
YEL
CONDENSER
BLK
H
RED
A15
C
XFMR-C
B4
FAN MOTOR
RED
BLOWER
CONTROL
BLU
BLU
WHT
COMPRESSOR
CONTACTOR
T2
RED
R
T1
TRANSFORMER
INDOOR
BLOWER
B3
T1
MOTOR
L
C
M
H
C4
CAPACITOR
BRN
PUR
F
C
C12
DUAL
CAPACITOR
BLK
208/230V-1-60
S
C
B1
YEL
R
COMPRESSOR
CONTACTOR
RED
LINE VOLTAGE FIELD INSTALLED.
BLK
BLK
P-3
RED
NC
NO
P-1
240V
208V
A15
CONTROL
BLOWER
C
BLK
SEE CHART
FOR WIRING
CHM
K1-1
COMPRESSOR
L
MOTOR
SPEED TAPS
L1
IF ANY OF THE ORIGINAL WIRE IS REPLACED,
THE SAME SIZE AND TYPE WIRE MUST BE USED.
USE COPPER CONDUCTOR ONLY, MIN 75°C WIRE.
CONTACTOR
L1
K1-2
L2
P-2
P-4
P/N 48396-001
Wiring Diagram
L2
# 48392M005 Page 9
Figure 9
Page 10
Limited Warranty
August 1, 1997
This warranty gives you specific legal rights and you may have other rights
which vary from state/province to state/province.
Subject to the limitations stated in this warranty, we warrant to the first buyer for use the residential heating, cooling, or heat pump unit,
when installed, operated, and maintained as required by this warranty, to be free of defects in workmanship or material for a period of
5 years in residential installations (1 year in non-residential installations) from the time of installation. We will replace any defective
component without cost or expense to you except for the costs of delivery and labor for removal and replacement of the defective
component.
These (2/4)SA13 package cooling units carry a 5-year limited warranty on the compressor. Limited warranties apply to
the original owner in private owner-occupied residences.
Warranty Begins
The warranty period begins when the installation is complete and the product is ready to operate. You must be able to verify this date
whenever a warranty claim is made. Original bill of sale, installer’s invoice, or other similar document will suffice. If the beginning date
cannot be verified, we will consider warranty coverage to begin 6 months after the date the product was shipped from our factory.
Limitations on Implied Warranties
Implied warranties of merchantability or, to the extent applicable, fitness for a particular purpose are limited to 5 years, the same duration
as the basic limited written warranty provided herein. Some states/provinces do not allow limitations on how long an implied warranty of
merchantability or fitness lasts, so the above limitations or exclusions may not apply to you.
Only Warranty
This written Limited Warranty is the only warranty made by the warrantor; this warranty is in lieu of and excludes all other warranties,
express or implied. The warrantor does not authorize any person to provide any other warranty or to assume for it any further
obligation in connection with the warranted product.
What is NOT Covered
1. Cabinets or cabinet pieces.
2. Normal maintenance items such as filters, fan belts, fuses, or other consumable items.
3. Damage caused by misuse, failure to maintain properly, accidents, or acts of God.
4. External wiring, piping, venting, or attachment of accessory products not integral to our product, including without limitation,
humidifier, air cleaner, vent damper, thermostat, or other mechanical devices not manufactured by the warrantor.
5. Products that have been operated in a corrosive atmosphere where a concentration of acids, halogenated hydrocarbons,
or other corrosive elements causes deterioration to metal surfaces or integral components. NOTE: Operation in a corrosive
atmosphere is considered abuse and voids this warranty.
6. Products that have NOT been installed in accordance with our published installation instructions, applicable local, state/
provincial, or national codes, ACCA published standards.
7. Products that have NOT been installed by competent, qualified installers.
8. Products that have been moved from their original place of installation.
Warranty on Replacement Components
Any replacement component furnished by us will assume the remaining (unused) portion of the Limited Warranty.
Consequential Damages
The warrantor shall not be responsible for any consequential damages caused by any defect in the product. Some state/provinces do
not allow the exclusion or limitations of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
This product must be installed, used, and cared for in accordance with the instruction manual. You are responsible for required periodic
maintenance or service, such as changing or cleaning of air filters and lubrication or cleaning of components. Failure to properly install,
operate, or maintain your unit voids this warranty.
Page 10 # 48392M005
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