Chamberlain CSW24U Installation Manual Download

Page: 54 / 60

SHADO

INTER

UPT EXIT

SBC

OPN

CLS

STP

COM

EYE

ONL

EYE/

EDGE

EYE/

EDGE

COM

OPEN

TO MAIN

BOARD

POWER

LOCK

N.O.

COM

N.C.

LOCK

N.O.

COM

N.C.

Two 12V Solar Panels in Series

Accessory

Power

Outlets

Maglock

(Optional)

(not provided)

Solenoid Lock

(Optional)

(not provided)

Product ID

White

Black

Red

Purple

Piezo Alarm

Black

Red

To Pin 1

To Pin 2

12V 7AH Battery

Red

Blocking Diode

Black

Blue

Gray

Red

Butt Splice

Black

White

APS Encoder

Run

Stop/Reset

Reset Switch

Transformer 375 VA, 24V, 120V

EMI FILTER/SURGE PROTECTION BOARD

GND

Input Power Connection

Switch/5A Breaker

Black

Red

Purple

Brown

Orange

Bridge Rectiﬁer

Heater

Yellow

Blue

Black

Red

Coaxial Antenna Cable

Antenna

CONTROL BOARD

EXPANSION BOARD

1/2 HP 24 Vdc Motor

Ferrite EMI Filters

Field Wiring

EDGE OR EYE

EYE

Primary/Secondary link

to other gate operator

Shielded

Twisted

Pair Cable

Ground the shield of the

cable to the chassis ground

of each operator.

Field Wiring

Loop

Detector

Field Wiring

Wire Loop

NOTE:

The accessor

y outlet is

disab

led and cannot be used

with the 240

Vac option.

Photoelectric Sensors

Edge

Photoelectric Sensors

Edge

N.C.

DIAGNOSTICS

AC & BATT FAIL

BACKDRIVE

COM

LINK

WIRING DIAGRAM

To protect against fire and electrocution:

• DISCONNECT power (AC or solar and battery) BEFORE installing or

servicing operator.

For continued protection against fire:

• Replace ONLY with fuse of same type and rating.

Summary of Contents for CSW24U

Page 1: ...RAINED GATE SYSTEMS TECHNICIAN ONLY This model is for use on vehicular passage gates ONLY and not intended for use on pedestrian passage gates This model is intended for use in Class I II III and IV vehicular swing gate applications Visit LiftMaster com to locate a professional installing dealer in your area This gate operator is compatible with MyQ and Security 2 0 accessories ...

Page 2: ......

Page 3: ... WIRING ACCESSORIES TO THE EXPANSION BOARD 34 MAINTENANCE 35 IMPORTANT SAFETY INFORMATION 35 MAINTENANCE CHART 35 BATTERIES 35 TROUBLESHOOTING 36 DIAGNOSTIC CODES 36 CONTROL BOARD LEDS 39 TROUBLESHOOTING CHART 40 APPENDIX 43 INSTALLATION TYPES 43 DETERMINE LOCATION FOR CONCRETE PAD AND OPERATOR 44 CONCRETE PAD AND OPERATOR ATTACHMENT 44 SHORTEN THE OPERATOR ARM 45 POSITION THE GATE BRACKET 45 SOLA...

Page 4: ...perator Failure to adjust and retest the gate operator properly can increase the risk of INJURY or DEATH Use the emergency release ONLY when the gate is not moving KEEP GATES PROPERLY MAINTAINED Read the owner s manual Have a qualified service person make repairs to gate hardware The entrance is for vehicles ONLY Pedestrians MUST use separate entrance SAVE THESE INSTRUCTIONS IMPORTANT SAFETY INFOR...

Page 5: ...er activation must be located at least 6 feet 1 8 m away from any moving part of the gate and where the user is prevented from reaching over under around or through the gate to operate the controls Outdoor or easily accessible controls shall have a security feature to prevent unauthorized use Exception Emergency access controls only accessible by authorized personnel e g fire police may be placed ...

Page 6: ...w astm org 3 1 2 All openings shall be designed guarded or screened from the bottom of the gate to the top of the gate or a minimum of 72 in 1 83 m above grade whichever is less to prevent a 2 1 4 in 57 mm diameter sphere from passing through the openings anywhere in the gate and in that portion of the adjacent fence that the gate covers in the open position The gate panel shall include the entire...

Page 7: ...NTORY NOT SHOWN Documentation packet and hardware bag INTRODUCTION Operator Arm Assembly Cover Warning Signs 2 and Warranty Card Battery 12 Vdc 7AH 2 Key 2 LiftMaster Monitored Retro Reflective Photoelectric Sensor ...

Page 8: ...544 3 kg 12 foot 3 7 m 800 lbs 362 9 kg 16 foot 4 9 m 600 lbs 272 2 kg 18 foot 5 5 m 90 Degree Travel Time 20 seconds Maximum Travel Range 115 degrees Maximum Daily Cycle Rate Continuous Maximum Duty Cycle Continuous Operating Temperature Without Heater 20 C to 60 C 4 F to 140 F With Optional Heater 40 C to 60 C 40 F to 140 F Expansion Board Provided Inherent Entrapment Protection Type A Dual RPM ...

Page 9: ... encountered in your gate application Install warning signs on both sides of the gate Warning Signs Entrapment Danger VEHICLE LOOPS The vehicle loops allow the gate to stay open when vehicles are obstructing the gate path Suggested for vehicles 14 feet 4 27 m or longer Vehicle loops are not required but are recommended Inside Property SITE PREPARATION Check the national and local building codes BE...

Page 10: ...rth Ground Rod Check national and local codes for proper depth Warning Sign Photoelectric Sensors Edge Sensors INTRODUCTION OVERVIEW OF TYPICAL INSTALLATION SINGLE GATE DUAL GATE Identify your installation type refer to the Appendix in the back of the manual for more information NOTE One or more non contact sensors shall be located where the risk of entrapment or obstruction exists at either the o...

Page 11: ...e measurements and location of the concrete pad 28 24 Outside Property Inside Property 29 5 35 5 11 2 46 25 10 Short Arm Long Arm Hinge Center Concrete Pad INSTALLATION To AVOID damaging gas power or other underground utility lines contact underground utility locating companies BEFORE digging more than 18 inches 46 cm deep ALWAYS wear protective gloves and eye protection when changing the battery ...

Page 12: ... 32 inches a compact installation is necessary Refer to Appendix for compact installation instructions Caution If the gate is longer than 18 feet follow CHART A A 2 Suggestion The dimensions between the gate and the concrete pad is always 10 inches less than the dimension D Example D 42 if the dimensions between the gate and the concrete pad is 32 CHART A CHART B INSTALLATION STEP 1 continued DETE...

Page 13: ...e ground and deeper than the frost line Ensure the pad is tall enough to avoid possible flooding 3 Secure the operator to the concrete pad with appropriate fasteners NOTE An alternative to a concrete pad is to post mount the operator refer to accessories 4 Concrete Anchors 1 2 x 3 1 2 Below the frost line Check all national and local codes 6 Above Ground 28 24 Post Mount CONDUIT LOCATION MOUNTING ...

Page 14: ...in Gate Hinge Center Set Screws 46 Tack weld STEP 4 ADJUST THE OPERATOR ARM LENGTH NOTE The length of the arm can be adjusted if necessary If adjusting the length ensure that both sections of the arm are adjusted proportionally Use the set screws on the arm to temporarily hold the arm in place while determining the correct measurements 1 Close the gate and measure the distance of the operator arm ...

Page 15: ...round the outer tubing and bracket 5 Adjust the nuts on the operator arm so the operator arm fits snug on the output shaft yet still allows enough room to swivel the handle must be in a 90 position 6 Tighten the handle by pushing it down Test to make sure the operator arm does not slip on the output shaft 7 Remove the pin from the vent plug on both the top and bottom gear boxes Pin Top Gear Box Bo...

Page 16: ...ENSORS If the photoelectric sensor beam gets blocked while the gate is moving the gate will stop and reverse The gate will not be able to travel in that direction until the obstruction is cleared Monitored photoelectric sensors MUST be used If a monitored photoelectric sensor is not working or loses power or the beam is blocked then ALL gate operation in that direction will stop This operator cont...

Page 17: ...onality is based on the switch settings located next to the terminals Switch set to CLOSE gate reverses fully when obstruction is sensed Switch set to OPEN gate reverses 4 seconds when obstruction is sensed SHADOW INTERUPT EXIT SBC OPN CLS STP COM EYE ONLY EYE EDGE EYE EDGE COM 1 2 3 OPEN CLOSE TO MAIN BOARD POWER SBC OPN EDGE COM 1 OPEN CLOSE TO MAIN BOARD Photoelectric Sensors Edge Sensor Photoe...

Page 18: ...le to lightning and surge damage Check national and local codes for proper depth To Operator INSTALLATION STEP 8 POWER WIRING AMERICAN WIRE GAUGE AWG MAXIMUM WIRE LENGTH 120 VAC MAXIMUM WIRE LENGTH 240 VAC 14 130 feet 260 feet 12 205 feet 410 feet 10 325 feet 650 feet 8 520 feet 1040 feet 6 825 feet 1650 feet 4 1312 feet 2624 feet Use copper conductors ONLY To reduce the risk of SEVERE INJURY or D...

Page 19: ...t housing by securing with the screws The operator is now set for 240 Vac operation Outlet Housing 240 Vac Socket EMI Board Junction Box Cover 120 VAC AND 240 VAC 1 Turn off the AC power from the main power source circuit breaker 2 Run the AC power wires to the operator 3 Remove the junction box cover 4 Connect the green wire to the earth ground rod and AC ground using a wire nut NOTE The earth gr...

Page 20: ...ive terminal of the battery 6 Plug the J15 plug back into the control board This will power up the control board NOTE You may see a small spark when plugging the J15 plug into the board 7 Turn ON AC power to the operator 8 Turn ON the AC power switch on the operator STEP 8 continued AC POWER SWITCH The AC Power switch on the operator will turn the incoming 120 240 Vac power ON or OFF The operator ...

Page 21: ...on the control board and disconnect it 2 Connect the white jumper from the 33AH wire harness kit between the positive terminal of one battery and the negative terminal of the other battery 3 Connect one end of the red wire from the 33AH wire harness kit to the red wire from the J15 plug as shown Connect the other end of the red wire to the positive terminal on the battery as shown 4 Connect one en...

Page 22: ...the LEARN button again on the primary operator The yellow NETWORK LED will light 4 Press and release the OPEN test button to assign this operator as network primary 5 Press and release the LEARN button on the second operator The green XMITTER LED will light 6 Press and release the LEARN button again on the second operator The yellow NETWORK LED will light 7 Press and release the CLOSE test button ...

Page 23: ...er to the operator and plug the J15 plug into the control board Com Link Data A Com Link Data B Com Link Data A Com Link Data B DUAL GATE WIRE TYPE SHIELDED TWISTED PAIR CABLE 22AWG up to 200 feet 61 m 18AWG 200 1000 feet 61 305 m Wire must be rated at 30 Volt minimum BIPART DELAY SYNCHRONIZED CLOSE The LOCK BIPART DELAY switch is used only with dual gate applications and serves two functions BIPA...

Page 24: ... 18 lead in screw The basic installation is complete STEP 11 INSTALL THE COVER The operator cover consists of two pieces a rear cover and a front cover The front cover can easily be removed to access the electrical box To access the reset switch slide the access door up The front cover and access door can be locked with the key TO LOCK THE ACCESS DOOR From the factory the access door for the reset...

Page 25: ...VE GATE buttons to move the gate to the open or close limit 3 Press and release the SET CLOSE or SET OPEN button depending on which limit is being set 4 Press and hold one of the MOVE GATE button to move the gate to the other limit 5 Press and release the SET CLOSE or SET OPEN button depending on which limit is being set 6 Cycle the gate open and close This automatically sets the force When limits...

Page 26: ... Force Adjustment section on page 23 ADJUSTMENT LIMIT AND FORCE ADJUSTMENT continued DIAGNOSTICS DIAGNOSTICS DIAGN OPEN limit CLOSE limit DIAGNOSTICS 2 3 1 OBSTRUCTION TEST The operator is equipped with an automatic obstruction sensing feature If the gate encounters an obstruction during motion the operator will automatically reverse direction of the gate for a short time and then stop the gate Af...

Page 27: ...rence in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception...

Page 28: ...ateway 3 Create an online account by visiting www myliftmaster com 4 Register the LiftMaster Internet Gateway 5 Use an internet enabled computer or smartphone to add devices The LiftMaster Internet Gateway will stay in learn mode for three minutes 6 Press the Learn button twice on the primary operator the operator will beep as it enters learn mode The LiftMaster Internet Gateway will pair to the o...

Page 29: ... System 2 Connect Gate Open indicator e g light Aux Relay Out Close Limit Switch Typically not required Typically not required Connect Gate Close Secure indicator e g light Connect Gate Close Secure indicator e g light Aux Relay Out Gate Motion Attach alert signal audible or visual alert system Attach alert signal audible or visual alert system Attach alert signal audible or visual alert system At...

Page 30: ...for programming remote controls and the network 7 TIMER TO CLOSE dial The TIMER TO CLOSE TTC dial can be set to automatically close the gate after a specified time period The TTC is factory set to OFF If the TTC is set to the OFF position then the gate will remain open until the operator receives another command from a control Rotate the TIMER TO CLOSE dial to the desired setting The range is 0 to...

Page 31: ...r arm or gate is incorrectly installed B The gate does not meet specifications C Gate hinges are too tight or broken and the gate is not moving freely D The gate is moving and a car pushes the gate E A foreign object is on the gate frame while the gate is moving F The gate hits the driveway or curb and gets stuck or bent in an awkward position Remove any obstructions Press the reset button to shut...

Page 32: ... pauses Timer to Close at OPEN limit SHADOW 2 Terminals This input is used for external shadow loop detector when loop is positioned under the swing of the gate Holds open gate at open limit Only active when the gate is at the OPEN limit disregarded at all other times Pauses Timer to Close at OPEN limit INTERRUPT 2 Terminals This input is used for photoelectric sensors and external interrupt loop ...

Page 33: ... momentary input logic as single button control and safeties remain active re enables Timer to Close ACCESSORY POWER 24 VDC MAX 500 mA 4 Terminals SWITCHED Switched ON with gate motion stays on 5 seconds after motion UNSWITCHED 24 Vdc voltage out to power accessories always ON Com Open main control board Three Button Control Station Fire Department Com Fire Dept Acc Power 24 Vdc Com main control b...

Page 34: ...g gate to pause Once the vehicle is clear the gate will continue to close 5 AUX RELAY Switches Set the AUX RELAY switches as needed to obtain the desired function as shown on the following page 6 EYE EDGE Switches Set the EYE EDGE switches as needed to obtain the desired OPEN or CLOSE functionality 7 1 2 and 3 LEDs LEDs indicating the status of the EYE EDGE inputs Also used to check the firmware v...

Page 35: ...s manually tampered with by being pushed off of close limit For an additional audible or visual display connect an external buzzer or light low voltage Cycle Quantity Feedback ON ON ON The 1 2 and 3 LEDs will blink out the cycle count cycle count is stored on the control board See below Not used AUX RELAY 1 AND 2 Normally Open N O and Normally Closed N C relay contacts to control external devices ...

Page 36: ... 4 terminals total Stop command stops a moving gate Hard stop maintained switch overrides Open and Close commands and resets alarm condition If maintained pauses Timer to Close at OPEN limit Overrides an Open or Close command F Exit Loop Input 2 terminals Loop wire connection for plug in loop detector when loop is inside secured area near gate Open command opens a closed gate Soft open maintained ...

Page 37: ...o 33AH batteries will not fit into the operator enclosure IMPORTANT SAFETY INFORMATION To reduce the risk of SEVERE INJURY or DEATH READ AND FOLLOW ALL INSTRUCTIONS ANY maintenance to the operator or in the area near the operator MUST NOT be performed until disconnecting the electrical power AC or solar and battery and locking out the power via the operator power switch Upon completion of maintena...

Page 38: ...owing page for an explanation of each code CODE SEQUENCE NUMBER The first number shown is the most recent code example 01 The display will show the sequence of codes that occurred starting with 01 and going up to code 20 TO EXIT Press and release the STOP button to exit The display will also time out after two minutes of inactivity TO RESET THE CODE HISTORY 1 Press and hold the STOP button for six...

Page 39: ...Too much voltage on the battery Check harness Make sure there is NOT a 24V battery on a 12V system YES 41 Battery overcurrent Possible short of the battery charge harness Check harness Make sure you do NOT have a 12V battery on a 24V system YES 42 No battery at boot up Check battery connections and installation Replace batteries if depleted to less than 20V on a 24V system or less than 10V on a 12...

Page 40: ...or canceling TTC 72 OPEN EYE EDGE triggered causing reversal or preventing opening 73 CLOSE EYE INTERRUPT triggered causing reversal preventing close or resetting TTC IF an obstruction occurred no action required If an obstruction did NOT occur check alignment inputs and wiring on expansion board NO 74 CLOSE EYE EDGE triggered causing reversal and preventing close or canceling TTC 75 OPEN EYE EDGE...

Page 41: ...t active BLINK Input active on other operator LOCK OFF Maglock relay inactive ON Maglock relay active STATUS LEDS INPUT POWER OFF OFF state ON AC charger or Solar power available BATT CHARGING OFF Not charging ON Three stage battery charging TIMER OFF The timer is disabled ON The timer is enabled MEDIUM BLINK 1 blink per second The timer is running FAST BLINK 2 blinks per second The timer is pause...

Page 42: ... for a stuck on input b Check Stop button is not stuck on c Check Reset button d Charges batteries by AC or solar power or replace batteries e Check all Entrapment Protection Device inputs for a stuck on sensor f Check all vehicle detector inputs for a stuck on detector Operator does not respond to a wireless control or transmitter a Check XMITTER LED when wireless control is active b Stop button ...

Page 43: ...b Defective edge sensor a Check edge sensor wiring Retest that activating edge sensor causes moving gate to stop and reverse direction b Replace defective edge sensor Retest that activating edge sensor causes moving gate to stop and reverse direction Alarm sounds for 5 minutes or alarm sounds with a command a Double entrapment occurred two obstructions within a single activation a Check for cause ...

Page 44: ... that Quick Close setting is ON b Check operation of Interrupt Loop detector c Replace defective Expansion board Anti Tailgating not working correctly a Anti Tail setting incorrect b Interrupt loop detector c Defective Expansion board a Check that Anti Tail setting is ON b Check operation of Interrupt Loop detector c Replace defective Expansion board AUX Relay not working correctly a AUX Relay set...

Page 45: ...a compact installation If the operator arm will hit an obstruction when the gate is in the open position follow the directions for Compact Installation Inside Property UPHILL DRIVEWAY INSTALLATION The illustration is an example of an uphill driveway installation If installing the operator on a hill a special swivel arm and hinges are required not provided Outside Property Side View ...

Page 46: ...the operator refer to accessories 4 Concrete Anchors 1 2 x 3 1 2 Below the frost line Check all national and local codes 6 Above Ground 28 1 3 Post Mount 24 CONDUIT LOCATION MOUNTING FOOTPRINT 5 5 4 5 1 6 5 4 1 5 10 3 28 20 15 24 13 6 12 2 6 1 2 49 14 14 82 cover mounting distance Conduit Pad 24 32 STEP 1 DETERMINE LOCATION FOR CONCRETE PAD AND OPERATOR COMPACT INSTALLATION ONLY DO NOT run the ope...

Page 47: ...ts 1 2 3 long arm section short arm section CUT CUT CUT 10 22 4 20 4 Set Screws 23 25 1 2 STEP 4 POSITION THE GATE BRACKET COMPACT INSTALLATION ONLY NOTE It may be necessary to attach horizontal reinforcement to the gate before attaching the gate bracket Use the set screws on the arm to temporarily hold the arm in place while determining the correct measurements 1 Position the operator arm onto th...

Page 48: ... Vdc at 60 watts maximum The solar panel s must be located in an open area clear of obstructions and shading for the entire day The gate operator is not supported in northern climates where temperatures reach below 4 F This is due to cold weather and a reduced number of hours of sunlight during the winter months Cycle rate may vary from solar chart for areas that reach below 32 F Solar panels shou...

Page 49: ...es Actual results may vary APPENDIX SOLAR GATE CYCLES PER DAY BATTERY CURRENT DRAW mA ZONE 1 ZONE 2 ZONE 3 7AH batteries 33AH batteries 7AH batteries 33AH batteries 7AH batteries 33AH batteries 10W SOLAR PANEL Must use 24V solar panel 5 26 28 15 17 15 22 24 12 13 20 20 22 11 40 12 14 60 20W SOLAR PANEL Two 10W 12V panels in series 5 57 67 34 40 14 16 15 52 62 30 36 10 12 20 50 60 28 33 11 50 36 45...

Page 50: ...S Tall trees or buildings that do not shade the solar panel s in the summer could shade the solar panel s during the winter months when the sun sits lower in the sky The area around the solar panel s should be clear of shadows or obstructions to the sun for a 180 arc east to west Wire runs should be kept as short as possible The solar panel s can be located up to 100 feet 30 48 m from the operator...

Page 51: ...e black wire of the other solar panel 6 Connect the shorter red wire from the J15 plug new wire harness labeled DC Power to the red wire on one solar panel Connect the shorter black wire from the J15 plug new wire harness labeled DC Power to the black wire from the other solar panel 7 Plug the J15 plug new wire harness into the J15 input on the control board NOTE You may see a small spark when plu...

Page 52: ...ESSORY PRIMARY OPERATOR SECONDARY OPERATOR Remote Controls Program remote controls 1 to 50 to the primary operator Program remote controls 51 to 100 to the secondary operator LiftMaster Internet Gateway Program to primary operator Garage and Gate Monitor Program to primary operator SAMS WIRING WITH RELAYS NOT ENERGIZED EXPANSION BOARD DUAL GATE SETTINGS NOTE We recommend that all accessories and b...

Page 53: ...control again to set the close limit 8 Cycle the gate open and close This automatically sets the force When limits are set properly the operator will automatically exit limit setting mode ADJUST THE LIMITS If the limits have already been set the operator will exit the limit setting mode after resetting each limit Set the Close Limit Only 1 Press and release the SET OPEN and SET CLOSE buttons simul...

Page 54: ... Orange Orange Bridge Rectiﬁer Heater Yellow Blue Black Red Coaxial Antenna Cable Antenna CONTROL BOARD EXPANSION BOARD 1 2 HP 24 Vdc Motor Ferrite EMI Filters Field Wiring EDGE OR EYE EDGE OR EYE EYE Primary Secondary link to other gate operator Shielded Twisted Pair Cable Ground the shield of the cable to the chassis ground of each operator Field Wiring Loop Detector Field Wiring Field Wiring Wi...

Page 55: ...6539 Gear Box top K32 34655 1 Toroid Transformer K204C0211 Dust Guard K13 34729 Main Board with heat sink K1D8389 1CC Operator Cover with labels keys and lock assembly K77 37853 Lock and Keys K75 36260 Keys Q118 Gear Reducer bottom K32 35814 1 Gear Reducer Sprocket with set screws and key 1 K15 50B18LKGH 50 Drive Chain and Master Link K19 50038 Motor 1 2 HP 24 Vdc K76 36398 NOT SHOWN K94 36540 Wir...

Page 56: ... designed keypad Model 877MAX ACCESSORIES ENTRAPMENT PROTECTION LIFTMASTER MONITORED THROUGH BEAM PHOTOELECTRIC SENSOR Model LMTBU LIFTMASTER MONITORED RETRO REFLECTIVE PHOTOELECTRIC SENSOR Model LMRRU and CPS RPEN4GM LIFTMASTER COMMERCIAL PROTECTOR SYSTEM Models CPS UN4 and CPS UN4G LIFTMASTER MONITORED WIRELESS EDGE KIT TRANSMITTER AND RECEIVER Model LMWEKITU LIFTMASTER MONITORED WIRELESS EDGE T...

Page 57: ...ately Model MG1300 HEATER The heater keeps the gearbox and batteries at a suitable temperature when the outside temperature is below 4 F The thermostat MUST be set between 45 F and 60 F to ensure proper gate operation The heater can be powered by 110 to 250 Vac Model HTR MISCELLANEOUS ACCESSORIES BATTERIES Gate access system batteries replace or upgrade the gate operator batteries Two identical 12...

Page 58: ...IN DURATION TO THE 7 YEAR RESIDENTIAL 5 YEAR COMMERCIAL LIMITED WARRANTY PERIOD SET FORTH ABOVE EXCEPT THE IMPLIED WARRANTIES WITH RESPECT TO THE CSW24U WHICH ARE LIMITED IN DURATION TO THE 7 YEAR RESIDENTIAL 5 YEAR COMMERCIAL LIMITED WARRANTY PERIOD FOR THE CSW24U AND NO IMPLIED WARRANTIES WILL EXIST OR APPLY AFTER SUCH PERIOD Some states do not allow limitations on how long an implied warranty l...

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