Lennox International Inc Humidifier 2 4SA13 User Manual

INSTALLATIONAND  
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  
WARNING  
Installation and servicing of air conditioning  
equipment can be hazardous due to internal  
refrigerant pressure and live electrical compo-  
nents. Only trained and qualified service  
personnel should install or service this equip-  
ment. Installation and service performed by  
unqualified persons can result in property  
damage, personal injury, or death.  
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  
WARNING  
If this unit is to be installed in a mobile or manu-  
factured 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.  
Manufactured By  
A.A.C.  
A Lennox International Inc. Company  
421 Monroe Street  
*48392M005*  
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.  
Save these instructions for future reference  
# 48392M005  
Page 1  
 
Clearances  
Minimum Clearance Requirements  
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  
for servicing and proper unit operation.  
To  
For  
Proper  
For  
Combustible  
Material  
Service  
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.  
Front  
Rear  
0"  
0"  
0"  
0"  
0"  
48"  
24"  
24"  
30"  
36"  
3"  
3"  
Service Access  
Access to all serviceable components is provided by four  
removable panels:filter compartment, blower compart-  
ment, heater compartment, and top panel.  
Condenser  
End  
3"  
Condensate Drain  
Blower  
End  
0"  
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.  
Top  
36"  
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.  
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".  
Typical Condensate Drain Connection  
CAUTION  
Before lifting a unit, make sure that the weight  
is distributed equally on the cables so that it  
will lift evenly.  
Unit  
Drain Connection  
1.00" Min.  
Roof Curb Installation  
If a roof curb is used, follow the manufacturers Installation  
Instructions and be sure that all required clearances are  
observed (see following Clearances section).  
3.00" Min.  
12.00"  
Max.  
Positive Liquid Seal Required  
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).  
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.  
Figure 2  
# 48392M005  
Page 3  
 
The supply and return air duct systems should be de-  
signed 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.  
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  
Outdoor ductwork must be insulated and waterproofed.  
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).  
Filter Area  
Nominal Cooling  
(sq. ft.)  
24,000  
30,000  
36,000  
42,000  
48,000  
60,000  
2.67  
3.33  
4.00  
4.67  
5.33  
6.67  
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  
Table 2  
2
Electrical Wiring  
1
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.  
1. Remove screw and lift.  
2. Slide cover to free back pin.  
Base  
Figure 4  
CAUTION  
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.  
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.  
Filters  
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  
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 4  
# 48392M005  
 
WARNING  
Electrical Access  
Unit must be grounded in accordance with  
national and local codes. Failure to ground unit  
properly can result in personal injury or death.  
Heater Power Entry  
Thermostat  
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.  
Line Voltage  
Entry  
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.  
Figure 5  
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  
Typical Wiring Connections  
THERMOSTAT  
R
OUTDOOR UNIT  
R
THERMOSTAT  
R
OUTDOOR UNIT  
R
ECONOMIZER  
BLUE  
WHITE  
C
Y
C
Y
C
C
Y1  
ECONOMIZER  
NOT  
INSTALLED  
W1  
W2  
YELLOW  
Y
W
G
W1  
W2  
G
W
G
GREEN  
BLACK  
G
CAUTION  
CAUTION  
C
C
Do not connect  
connections except when  
required by the indoor thermostat. Refer to the  
thermostat installation instructions.  
Do not connect  
connections except when  
required by the indoor thermostat. Refer to the  
thermostat installation instructions.  
Y2  
L2  
L1  
L3  
L2  
L1  
GROUND  
SCREW  
GROUND  
SCREW  
POWER WIRING  
208/230-1-60  
(90°C MIN. WIRE)  
POWER WIRING  
200/230-3-60, 460/575-3-60  
(90°C MIN. WIRE)  
POWER WIRING  
POWER WIRING  
24V CONTROL WIRING  
(NEC CLASS 2)  
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.  
* W1, W2 CAN BE USED TO STAGE ELECTRIC  
HEAT ACCESSORY ON 15 & 20 KW MODELS.  
* 5 & 10 KW HEATER ACCESSORY FUNCTION  
OFF W1 ONLY.  
TYPICAL WIRING CONNECTION  
1 PHASE  
TYPICAL WIRING CONNECTION  
3 PHASE  
Figure 6  
# 48392M005  
Page 5  
 
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.  
Heater Kit Accessory Installation  
Compressor  
Units are shipped with compressor mountings factory-  
adjusted and ready for operation. Caution: Do not loosen  
compressor mounting bolts.  
Heater  
Blockoff  
Heater  
Compartment  
Access  
Heater Kit Accessory (if used)  
Panel  
The unit is fully equipped for cooling operation without  
auxiliary heat. A heater kit accessory may also be used.  
Heater Kit  
To install the heater kit accessory (see Figure 7):  
1. Disconnect the power and remove the heater compart-  
ment access panel.  
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.  
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. Following the lighting instructions, place the unit being  
inspected in operation. Adjust the thermostat so the  
appliance will operate continuously.  
4. Insert the heater into the control panel and fasten in  
the same mounting holes.  
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.  
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. Follow the preceding steps for each appliance con-  
nected to the common venting system.  
6. Replace the heater compartment access panel and  
reconnect the power.  
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.  
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.  
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.  
1. Seal any unused openings in the common venting  
system.  
2. Visually inspect the venting system for proper size  
and horizontal pitch and determine there is no block-  
age or restriction, leakage, corrosion, or other deficien-  
cies 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  
 
OPERATION  
Sequence of Operation  
Cooling  
Upon cooling demand, the thermostat closes circuit R andY.  
Closing R andY 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 thermo-  
stat 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 thermo-  
stat is satisfied.  
Cooling System Performance  
For maximum performance of the cooling system, operat-  
ing temperatures and pressure should be checked. Super-  
heat 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  
Suction Superheat  
@ ARI Conditions  
82° OD - 80° IDDB/67° IDWB  
Size  
R22  
410A  
24  
30  
22°  
20°  
20°  
20°  
20°  
15°  
15°  
12°  
12°  
10°  
36  
42  
48, 60  
Table 3  
# 48392M005  
Page 7  
 
MAINTENANCE  
WARNING  
Owner Record  
Model # _________________________________  
Serial # _________________________________  
Installation Date ___________________________  
ELECTRICAL SHOCK, FIRE,  
OR EXPLOSION HAZARD  
Failure to follow the safety warnings exactly  
could result in dangerous operation, serious  
injury, death, or property damage.  
Installed by:  
Dealer __________________________________  
Address _________________________________  
Telephone # ______________________________  
License # ________________________________  
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.  
Filters  
Filters should be checked at least every 6 weeks. Dispos-  
able 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. Clean-  
ing 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  
 
W H T  
G R N  
R E D  
Y E L  
B L U  
T
S1  
BOLWSPEDCHAR  
S4  
B L U  
K1  
A51  
B L U  
B L U  
X F M R - R  
X F M R - C  
2 4 V  
B L U  
Y E L  
T1  
2 4 0 V  
2 0 8 V  
B L K  
T R A N S F O R M E R  
B3  
W H T  
B L K  
B L K  
B4  
B L K  
C
K1-2  
Y E L  
K
R E D  
B L K  
B1  
# 48392M005  
Page 9  
Figure 9  
 
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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