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About Trane and American Standard Heating and Air Conditioning

Trane and American Standard create comfortable, energy efficient indoor environments for residential applications.

For more information, please visit www.trane.com or www.americanstandardair.com

The AHRI Certified mark indicates company participation in the AHRI Certification program. For verification of individual certified products, go to 

ahridirectory.org.

The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are 

committed to using environmentally conscious print practices.

© 2020

18-EB27D1-13A-EN   03 Jun 2020  
Supersedes 18-EB27D1-13-EN   (September 2018)

Summary of Contents for 4YCY4024

Page 1: ...inherent hazards during installation and service the electrical supply must be disconnected and the main gas valve must be turned off If operating checks must be performed with the unit operating it i...

Page 2: ...ENING SYSTEM Failure to follow proper procedures can result in personal illness or injury or severe equipment damage RECONNECT ALL GROUNDING DEVICES All parts of this product that are capable of condu...

Page 3: ...erwriters Laboratory An LP Gas conver sion kit is available Extreme mounting kits for slab and curbs are also available Packaged units are designed for outdoor mounting with a vertical condenser disch...

Page 4: ...ep 2 Determine Unit Clearances Figure 1 4YCY4024 through 4YCY4036 1 of 3 Figures 1 through 6 show the unit critical dimensions NOTE The view labeled Bottom Side represents the Base as viewed looking u...

Page 5: ...Page 5 Installer s Guide Figure 2 4YCY4024 through 4YCY4036 2 of 3...

Page 6: ...Page 6 Installer s Guide Figure 3 4YCY4024 through 4YCY4036 3 of 3...

Page 7: ...Page 7 Installer s Guide Figure 4 4YCY4042 through 4YCY4060 1 of 3 NOTE The view labeled Bottom Side represents the Base as viewed looking up from underneath the unit...

Page 8: ...Page 8 Installer s Guide Figure 5 4YCY4042 through 4YCY4060 2 of 3...

Page 9: ...Page 9 Installer s Guide Figure 6 4YCY4042 through 4YCY4060 3 of 3...

Page 10: ...Refer to the Installation section for instruction on converting the supply and return airflow covers to down airflow 3 The field assembled Roof Mounting Curb BAYCURB050A or BAYCURB051A or a field fabr...

Page 11: ...ce to combustible mate rial shall be maintained on air outlet duct 4 Attach the supply and return air ducts to the unit as explained Rooftop Installation Curb Mounting Convert Horizontal Airflow to Do...

Page 12: ...he unit casing casing hardware corner lugs angles tabs or flanges Failure to observe these warnings may result in equipment damage 1 Before preparing the unit for lifting check the unit dimension draw...

Page 13: ...For roof top applications using field fabricated ducts and sleeper rails rather than a curb or frame use the following procedure 1 Locateandsecurethesleeperrailstotheroof Three 3 sleeper rails are re...

Page 14: ...drawing The manufacturer is not responsible for the unauthorized use of this drawing and expressly disclaims any liability for damages resulting from such unauthorized use Gasket Seal Spreader Bars B...

Page 15: ...rizontal Airflow Application with Frame Supply Air Return Air Roof Flashing Channel Iron Center Support Center Sup port required on all Frame Applications Angle Iron Frame Roof Flashing Return Air Ang...

Page 16: ...wo 2 feet from the unit to minimize noise and resistance To prevent leaking do not attach the ductwork to the bottom of the unit base refer to the bottom example in Figure 14 Condensate Drain Piping A...

Page 17: ...SURE DROP OF 0 3 INCH W C AND 0 6 SP GR GAS IMPORTANT Before making the gas pipe connection give serious consideration to providing the clearance necessary to remove the accesspanelsontheunit e g econ...

Page 18: ...cap or plug the line and test the pressure at the tapped shut off cock The pressure reading should not exceed 14 inches water column 5 Usinganappropriatebackupwrenchonthegasvalveinletboss connect the...

Page 19: ...in the absence of local codes with the National Electrical Code ANSI NFPA 70 Latest Revision NOTE This unit is factory wired for 230V See wiring dia gram for 208V conversion NOTE For branch circuit w...

Page 20: ...Switch Provide an approved weatherproof disconnect within close proxim ity to and within sight of the unit If disconnect must be mounted to the cabinet the location shown in Figure 21 should be the o...

Page 21: ...757192i2 B G Y W1 W2 R COMMON FAN COMPRESSOR HEAT FIRST STAGE HEAT SECOND STAGE 24V UNIT CONTROL BOX GROUND WIRE 3 PH POWER UNIT NOTE 1 1 PH POWER B G Y W1 W2 R COMMON FAN COMPRESSOR HEAT FIRST STAGE...

Page 22: ...Are all covers and access panels in place to prevent air loss and safety hazards NOTE Do not use the PRESSURE CURVES from the unit s SER VICE FACTS to determine the unit refrigerant charge The correc...

Page 23: ...place and properly fastened Has the owner been instructed on the proper operation and maintenance of the unit Be sure to leave this manual with the owner Final Installation Checklist 1 Check to make s...

Page 24: ...a 10 minute delay from the time of 1st stage ignition Comfort Control satisfied R and W1 W2 jumped contacts open signaling the control module to close the gas valve and de energize the induced draft b...

Page 25: ...not store combustible materials gasoline or other flammable vapors or liquids near the unit WARNING Owner Maintenance Some of the periodic maintenance functions of the packaged unit can be performed b...

Page 26: ...2 through 7 above Take care that all gaskets seat properly 12 Check all wires for correct installation by referring to the unit s electrical wiring diagram in the SERVICE FACTS 13 Leak test all gas li...

Page 27: ...3 Flashes Pressure switch problem detected Fast Flash Rate Not used 4 Flashes High Limit switch protection device open Steady ON Normal No Call for Heat 5 Flashes Flame sensed and gas valve not energi...

Page 28: ...com The AHRI Certified mark indicates company participation in the AHRI Certification program For verification of individual certified products go to ahridirectory org The manufacturer has a policy o...

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