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Installation, Operation, and Maintenance
Single Packaged Heat Pump, Priority, Two Stage,
Convertible, 2 to 5 Ton, R-454B
5WCZ5024A1000A
5WCZ5030A1000A
5WCZ5036A1000A
5WCZ5042A1000A
5WCZ5048A1000A
5WCZ5060A1000A
5WCZ5036A3000A
5WCZ5048A3000A
5WCZ5060A3000A
5WCZ5036A4000A
5WCZ5048A4000A
5WCZ5060A4000A
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning
equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person
could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that
are attached to the equipment.
February 2025
S S A A F F E E T T Y Y W W A A R R N N I I N N G G
P P K K G G R R - - S S V V X X 0 0 0 0 2 2 A A - - E E N N
N N o o t t e e : : "Graphics in this document are for representation
only. Actual model may differ in appearance."
N N o o t t e e : : "Unit specific Service Facts available online."
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Summary of Contents for Trane 5WCZ5024A1000A
- Page 1 Installation, Operation, and Maintenance Single Packaged Heat Pump, Priority, Two Stage, Convertible, 2 to 5 Ton, R-454B 5WCZ5024A1000A 5WCZ5030A1000A 5WCZ5036A1000A 5WCZ5042A1000A 5WCZ5048A1000A 5WCZ5060A1000A 5WCZ5036A3000A 5WCZ5048A3000A 5WCZ5060A3000A 5WCZ5036A4000A 5WCZ5048A4000A 5WCZ5060A4000A N N o o t t e e : : “Graphics in this document are for representation only.
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Page 2: Safety Section
SAFETY SECTION I I m m p p o o r r t t a a n n t t : : This document contains a wiring diagram, W W A A R R N N I I N N G G a parts list, and service information. - Page 3 S S A A F F E E T T Y Y S S E E C C T T I I O O N N W W A A R R N N I I N N G G I I m m p p o o r r t t a a n n t t : : Wear appropriate gloves, arm sleeve protectors and eye protection when C C a a n n c c e e r r a a n n d d R R e e p p r r o o d d u u c c t t i i v v e e H H a a r r m m ! !
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Page 4: Table Of Contents
Table of Contents Information on Servicing ....5 Ductwork Installation ....22 Attaching Downflow Ductwork to Prior to Beginning Work . -
Page 5: Information On Servicing
Information on Servicing – All replacement parts shall be in accordance with the Refrigerating pipe or components are installed manufacturer's specifications. in a position where they are unlikely to be exposed to any substance which may corrode refrigerant containing components, unless the Prior to Beginning Work components are constructed of materials which are inherently resistant to being corroded or are... -
Page 6: Removal And Evacuation
I I n n f f o o r r m m a a t t i i o o n n o o n n S S e e r r v v i i c c i i n n g g be calibrated in a refrigerant-free area.) Ensure that vacuum in the system with oxygen-free nitrogen and the detector is not a potential source of ignition and... -
Page 7: Decommissioning
I I n n f f o o r r m m a a t t i i o o n n o o n n S S e e r r v v i i c c i i n n g g The recovery equipment shall be in good working required, for handling refrigerant cylinders;... -
Page 8: Introduction, Unit Inspection And Specification
Introduction, Unit Inspection and Specification Introduction 2. Check the unit’s nameplate to determine if the unit is correct for the intended application. The power Read this manual carefully before attempting to install, supply must be adequate for both the unit and all operate, or perform maintenance on this unit. -
Page 9: Product Specification
I I n n t t r r o o d d u u c c t t i i o o n n , , U U n n i i t t I I n n s s p p e e c c t t i i o o n n a a n n d d S S p p e e c c i i f f i i c c a a t t i i o o n n Product Specification Model 5WCZ5024*1... - Page 10 I I n n t t r r o o d d u u c c t t i i o o n n , , U U n n i i t t I I n n s s p p e e c c t t i i o o n n a a n n d d S S p p e e c c i i f f i i c c a a t t i i o o n n Model 5WCZ5024*1 5WCZ5030*1...
- Page 11 I I n n t t r r o o d d u u c c t t i i o o n n , , U U n n i i t t I I n n s s p p e e c c t t i i o o n n a a n n d d S S p p e e c c i i f f i i c c a a t t i i o o n n Model 5WCZ5036*3 5WCZ5048*3...
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Page 12: Charging In Cooling Above 55°F Od
I I n n t t r r o o d d u u c c t t i i o o n n , , U U n n i i t t I I n n s s p p e e c c t t i i o o n n a a n n d d S S p p e e c c i i f f i i c c a a t t i i o o n n Charging in Cooling above pressure under the subcool value column, Add refrigerant to raise the pressure to match the table,... -
Page 13: Determine Unit Clearances
Determine Unit Clearances Figure 1. Space on sides requirements 2 - 3 TON Units 3.5 - 5 TON Units RECOMMENDED SERVICE CLEARANCE mm [Inches] W/ ECONOMIZER W/ ECONOMIZER BACK SIDE 305 [12] 762 [30] 305 [12] 762 [30] LEFT SIDE 762 [30] 914 [36] 914 [36]... - Page 14 D D e e t t e e r r m m i i n n e e U U n n i i t t C C l l e e a a r r a a n n c c e e s s Figure 2.
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Page 15: Information
Review Location and Recommendation Information N N o o t t e e : : There is no declared maximum altitude for 3. The field assembled Roof Mounting Curb operating the appliance. (BAYCURB050 or BAYCURB051) or a field fabricated curb should be in place before the unit is H H o o r r i i z z o o n n t t a a l l A A i i r r f f l l o o w w U U n n i i t t s s hoisted to the roof top. -
Page 16: Refrigerant Leak Detection System
R R e e v v i i e e w w L L o o c c a a t t i i o o n n a a n n d d R R e e c c o o m m m m e e n n d d a a t t i i o o n n I I n n f f o o r r m m a a t t i i o o n n Refrigerant Leak Detection detection system. -
Page 17: Unit Installation
Unit Installation N N o o t t e e : : The factory ships this unit for horizontal 4. Flexible duct connectors must be of a flame installation. retardant material. Insulate any ductwork outside of the structure with at least two (2) inches of insulation and weatherproof. -
Page 18: Lifting And Rigging
U U n n i i t t I I n n s s t t a a l l l l a a t t i i o o n n Table 3. Converting horizontal to down airflow Lifting and Rigging unit to determine the exact unit balance and stability before hoisting it to the installation W W A A R R N N I I N N G G... -
Page 19: Rooftop Installation - Frame Mounting
U U n n i i t t I I n n s s t t a a l l l l a a t t i i o o n n Table 4. Vibration isolators/Snow feet locations Note: The installation instructions indicate typical installation only, but actual installation may differ. Note: These views represent the base as viewed looking up from underneath the unit. - Page 20 U U n n i i t t I I n n s s t t a a l l l l a a t t i i o o n n 10. Flexible duct connectors must be of a flame given careful consideration when locating the duct retardant material.
- Page 21 U U n n i i t t I I n n s s t t a a l l l l a a t t i i o o n n Table 7. Typical rooftop horizontal airflow application with frame Supply Air Return Air Roof Flashing...
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Page 22: Ductwork Installation
U U n n i i t t I I n n s s t t a a l l l l a a t t i i o o n n Ductwork Installation When attaching ductwork to a horizontal unit, provide a flexible watertight connection to prevent noise Attaching Downflow Ductwork to Roof transmission from the unit to the ducts. -
Page 23: Electrical Wiring
U U n n i i t t I I n n s s t t a a l l l l a a t t i i o o n n supplied filter rack must be installed by the installer in (3) pole contactor. - Page 24 U U n n i i t t I I n n s s t t a a l l l l a a t t i i o o n n NOTES: 1. FUSED DISCONNECT SIZE, POWER WIRING AND GROUNDING OF EQUIPMENT MUST COMPLY WITH CODES.
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Page 25: Unit Start-Up
Unit Start-Up Pre-Start Quick Checklist O O p p e e r r a a t t i i n n g g P P r r e e s s s s u u r r e e C C h h e e c c k k s s After the unit has operated in the cooling mode for a ☐... -
Page 26: Sequence Of Operation
U U n n i i t t S S t t a a r r t t - - U U p p Sequence of Operation H H e e a a t t i i n n g g M M o o d d e e T T h h e e r r m m o o s s t t a a t t c c a a l l l l f f o o r r h h e e a a t t ( ( 2 2 - - s s t t a a g g e e t t h h e e r r m m o o s s t t a a t t ) ) G G e e n n e e r r a a l l C C a a l l l l f f o o r r 1 1 s s t t s s t t a a g g e e h h e e a a t t i i n n g g o o n n l l y y : :... - Page 27 U U n n i i t t S S t t a a r r t t - - U U p p D D e e m m a a n n d d D D e e f f r r o o s s t t O O p p e e r r a a t t i i o o n n Figure 6.
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Page 28: Final Installation Checklist
U U n n i i t t S S t t a a r r t t - - U U p p Final Installation Checklist Figure 7. Mitigation control board I I m m p p o o r r t t a a n n t t : : Perform a final unit inspection to be sure that factory tubing has not shifted during shipment. -
Page 29: Maintenance
U U n n i i t t S S t t a a r r t t - - U U p p Maintenance • Inspect the control panel wiring to verify that all electrical connections are tight and that the wire Owner Maintenance insulation is intact. - Page 30 U U n n i i t t S S t t a a r r t t - - U U p p 1 — Flash/ = Normal operation. Second = Fault A (Low ΔT): Inoperative compressor, 2 — Flashes/ loss of charge, open ambient sensor, shorted Second coil sensor.
- Page 31 U U n n i i t t S S t t a a r r t t - - U U p p Table 16. Demand defrost control checkout table (continued) YES/NO SYMPTOMS CHECKS ACTIONS Repair low voltage wiring. Control does not initiate a 24V R-B &...
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Page 32: Pressure Curves
Pressure Curves Figure 8. Pressure curves for 5WCZ5024 Cooling with Thermal Expansion Valve Heating with Thermal Expansion Valve INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM INDOOR ENTERING DRY BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. 80, 70, AND 60 DEG F. - Page 33 P P r r e e s s s s u u r r e e C C u u r r v v e e s s Figure 9. Pressure curves for 5WCZ5030 Cooling with Thermal Expansion Valve Heating with Thermal Expansion Valve INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM INDOOR ENTERING DRY BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F.
- Page 34 P P r r e e s s s s u u r r e e C C u u r r v v e e s s Figure 10. Pressure curves for 5WCZ5036 Cooling with Thermal Expansion Valve Heating with Thermal Expansion Valve INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM INDOOR ENTERING DRY BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F.
- Page 35 P P r r e e s s s s u u r r e e C C u u r r v v e e s s Figure 11. Pressure curves for 5WCZ5042 Cooling with Thermal Expansion Valve Heating with Thermal Expansion Valve INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM INDOOR ENTERING DRY BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F.
- Page 36 P P r r e e s s s s u u r r e e C C u u r r v v e e s s Figure 12. Pressure curves for 5WCZ5048 Cooling with Thermal Expansion Valve Heating with Thermal Expansion Valve INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM INDOOR ENTERING DRY BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F.
- Page 37 P P r r e e s s s s u u r r e e C C u u r r v v e e s s Figure 13. Pressure curves for 5WCZ5060 Cooling with Thermal Expansion Valve Heating with Thermal Expansion Valve INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM INDOOR ENTERING DRY BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F.
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Page 38: Indoor Fan Performance
Indoor Fan Performance EXTERNAL STATIC PRESSURE (IN.WG) Cooling CFM Horizontal [Downflow] 5WCZ5024A Motor Speed 350 CFM / [601] [588] [571] [562] [563] [549] [525] [517] [504] Setting High [734] [731] [722] [706] [702] [706] [695] [692] [681] 400 CFM / [638] [622] [619]... - Page 39 I I n n d d o o o o r r F F a a n n P P e e r r f f o o r r m m a a n n c c e e EXTERNAL STATIC PRESSURE (IN.WG) Cooling CFM Horizontal [Downflow] 5WCZ5042A Motor Speed...
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Page 40: Refrigerant Circuit
Refrigerant Circuit PKGR-SVX002A-EN... -
Page 41: Troubleshooting Chart
Troubleshooting Chart P P - - P P R R I I M M A A R R Y Y C C A A U U S S E E S S / / S S - - S S E E C C O O N N D D A A R R Y Y C C A A U U S S E E S S SYSTEM FAULTS REFRIGERANT CIRCUIT Liquid Pressure too High... - Page 42 N N o o t t e e s s PKGR-SVX002A-EN...
- Page 43 N N o o t t e e s s PKGR-SVX002A-EN...
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Page 44: Important Product Information
Service Phone ___________________________________________________________________ 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.
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