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Table of Contents
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service informa-
tion pack upon completion of work.
These instructions do not cover all variations in systems nor provide for every possible contingency to be met in connection with
the installation. Should further information be desired or should particular problems arise which are not covered sufficiently for the
purchaser's purposes, the matter should be referred to your installing dealer or local distributor.
1. Safety
This information is intended for use by individuals
possessing adequate backgrounds of electrical and
mechanical experience. Any attempt to repair a central
air conditioning product may result in personal injury
and/or property damage. The manufacture or seller
cannot be responsible for the interpretation of this
information, nor can it assume any liability in connec-
tion with its use.
RISK OF FIRE!
In systems using flammable refrigerants, observe all
safety instructions and markings with the air handler.
Ensure all safety devices are in place and functional.
To be repaired only by trained professional. Do not
puncture refrigerant tubing. Dispose of properly in ac-
cordance with federal or local regulations..
PRESSURIZED REFRIGERANT!
Failure to follow this warning could result in personal
injury.
System contains oil and refrigerant under high pres-
sure. Recover refrigerant to relieve pressure before
opening the system. Do not use non-approved refrig-
erants, refrigerant substitutes, or refrigerant additives.
WARNING!
This product can expose you to chemicals including
lead, which are known to the State of California to
cause cancer and birth defects or other reproductive
harm.
For more information go to www.P65Warning.ca.gov.
Installer's Guide
Replacement Coils
Includes coil models
COL32491, 32492, 32493, 32494, 32495, 32496,
COL32499, 32500, 32501, 32502, 32503, 32504
18-AH77D1-1A-EN
LIVE ELECTRICAL COMPONENTS!
Failure to follow this warning could result in property
damage, severe personal injury, or death.
Follow all electrical safety precautions when exposed
to live electrical components. It may be necessary to
work with live electrical components during installa-
tions, testing, servicing, and troubleshooting of this
product.
CAUTION
Extreme caution should be exercised when opening
the Liquid Line Service Valve. Turn counterclockwise
until the valve stem just touches the rolled edge. No
torque is required.
CAUTION
SHARP EDGE HAZARD!
Failure to follow this caution could result in property
damage or severe personal injury.
Be careful of sharp edges on equipment or any cuts
made on sheet metal while installing or servicing.
COIL IS PRESSURIZED!
•
Coil is pressurized with approximately 8-12 psi dry
air and factory checked for leaks.
•
Carefully release the pressure by removing the
rubber plug on the liquid line.
•
If no pressure is released, check for leaks.
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Related Manuals for Trane COL32491
Summary of Contents for Trane COL32491
- Page 1 Installer’s Guide Replacement Coils Includes coil models COL32491, 32492, 32493, 32494, 32495, 32496, COL32499, 32500, 32501, 32502, 32503, 32504 ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service informa- tion pack upon completion of work.
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Page 2: General Information
Replacement Coil Retrofit Air Handler Model Accessories Uncoated Coated TEM3A0B18, 24, 30, 36; TEM4*0B18, 19, 24, 30, 36; COL32491 COL32492 5TEM4B02; Lineset Panels A4AH4P18, P24, P30, P36, E24; A4AH5E19, A4AH6E19; A5AHC002 TEM3A0C42, 48; TEM4A0C37, C42, C48; COL32493 COL32494 A4AH4P37, E42A, E48A;... -
Page 3: Risk Of Fire
4.1.1 Downflow Coil Removal 3.1 Common Preparation Steps For downflow “N” coil replacement, remove lower horizontal cross brace. See Figure 3. On the “N” coil only, remove the shipping bracket if RISK OF FIRE! present. See Figure 4. In systems using flammable refrigerants, observe all Remove coil assembly from the air handler by sliding safety instructions and markings with the air handler. - Page 4 Kit Contents: Legacy apex “N” coils Small Bracket Qty. 2 Large Bracket Qty. 1 NOTE: Install the brackets always on the right side of the coil assembly. Remove kit contents from packaging. Install two (2) small brackets, each on the front and Figure 4 rear side bottom of the coil assembly.
- Page 5 Install external equalizer and hand tighten the fitting. Use back-up wrench and tighten assembly firmly. Do not over tighten. Install TXV sensing bulb on the suction manifold. Wrap sensing bulb with the new insulation provided with the replacement coil. Use tie wrap to secure. 4.3.2 Reinstall Orifice Metering Device (if previously equipped) Using back-up wrench, remove mechanical fitting from...
- Page 6 Figure 12 For horizontal installations, Install extensions on top baffle as shown using included screws Figure 9 Orient unused holes over the top baffle Holes in top baffle indicate extensions should be installed. NOTE: Not required when 26.5" retrofit kit is used.
- Page 7 4.3.5 Coil Installation for Horizontal Right Applications NOTE: For Horizontal Right applications, ON SOME MODELS the top panel assembly of the coil must be rotated for proper condensate management before installing the replacement coil assembly into the unit. If the replacement coil models does not have a gull wing and tabs in the top panel assembly, skip the Steps 1 to 3.
- Page 8 If equipped, reinstall refrigerant sensor in same loca- tion as before and reconnect. See Figure 21. Refrigerant Refrigerant Sensor Sensor Figure 19 Refrigerant Sensor Figure 21 Reinstall coil and blower panels. 4.3.6 Coil Installation for Downflow Applications NOTE: Some replacement coil orders will ship with Slide the replacement coil into the unit.
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Page 9: Pressure Test
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 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.
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