Table of Contents
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Installation Manual: XAF, XAH, and XAU
Series - Full Cased and Uncased Coils for
Cooling and Heat Pumps
XAF - full-cased upflow or downflow, XAH - full-cased
horizontal left or right, and XAU - uncased upflow or
downflow
York International Corporation, 5005 York
5997451-UIM-A-0721
Drive, Norman, OK 73069
Supersedes: Nothing
A
2021-07-12
Johnson Controls Ducted Systems
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Table of Contents
Related Manuals for Johnson Controls XAF Series
Summary of Contents for Johnson Controls XAF Series
- Page 1 Cooling and Heat Pumps XAF - full-cased upflow or downflow, XAH - full-cased horizontal left or right, and XAU - uncased upflow or downflow York International Corporation, 5005 York 5997451-UIM-A-0721 Drive, Norman, OK 73069 Supersedes: Nothing 2021-07-12 Johnson Controls Ducted Systems...
- Page 2 Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
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Page 3: Table Of Contents
Connecting refrigerant lines..........27 Cleaning the coil..............29 Adjusting the air system............. 29 Instructing the homeowner..........33 Installation verification............33 Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems... - Page 4 Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
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Page 5: General
Children must be supervised to ensure that they do not play with the appliance. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems... -
Page 6: Inspection
Maintenance and servicing access, including access for cleaning the coil • Condensate drain line • Removal of the coil assembly Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems... - Page 7 Figure 3: Component location - XAF upflow or downflow full-cased coil Figure 4: Dimensions - XAF upflow or downflow full-cased coil Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
- Page 8 The adapter fitting must be field installed for any refrigeration piping sizes not shown in the table. • Refer to the Technical Guide for the outdoor unit for the proper refrigeration piping size. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
- Page 9 Figure 5: Component location - XAH full-cased horizontal left or right coil Figure 6: Dimensions - XAH full-cased horizontal left or right coil Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
- Page 10 The adapter fitting must be field installed for any refrigeration piping sizes not shown in the table. Refer to the Technical Guide for the outdoor unit for the proper refrigeration piping size. • Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
- Page 11 Figure 8: Component location - XAU uncased upflow or Figure 9: Dimensions - XAU uncased upflow or downflow coil downflow coil Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
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Page 12: Limitations
2. The coil requires a metering device to be added. 1600 1800 Refer to outdoor unit documentation for correct TXV or piston to be used. 1750 2250 Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems... -
Page 13: Installing A Piston
See Figure 11. Verify that the PTFE washer is still in place in the distributor opening. See Figure 11. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems... -
Page 14: Installing A Txv
TXV equalizer tube connection port. Ensure that the bulb is installed at a 10 o’clock or 2 o’clock position. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems... - Page 15 Cover the bulb completely to insulate it. When the refrigeration piping is installed, leak test the system. Figure 14: Correct bulb location for TXV Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
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Page 16: Using A Coil Equipped With An Eev: Xaf And Xah Coils
16 for the connection diagrams, and see Figure 17 for the wiring diagram. Figure 16: Variable speed EEV connection Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems... - Page 17 Figure 17: Wiring diagram - EEV Figure 18: XAF and XAH coils with an EEV installed Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
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Page 18: Installing The Coil: Xaf And Xah Coils
Ensure that the horizontal pan drains water adequately before completing the unit install. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems... - Page 19 Figure 23: Vertical upflow applications with modular air handlers Figure 24: Vertical downflow applications with modular air handlers Figure 22: Vertical downflow applications with furnaces Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
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Page 20: Positioning The Unit In Horizontal Applications: Xah Coils
XAH coils with furnaces and modular air handlers. Figure 25: XAH horizontal right application with furnace Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems... - Page 21 See Figure 30 for the resulting assembly. Figure 29: XAH horizontal right drain pan extension Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
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Page 22: Installing The Coil: Xau Coils
These uncased coil installation instructions apply to refrigerant lines. See Connecting the duct system, Johnson Controls Ducted Systems furnace models with a Using a coil metering device, Installing a piston, supply air plenum of the size shown in Table 5 based on... - Page 23 35 1/2 21 1/2 Note: All dimensions are in inches. See Figure 33, Figure 34, and Figure 36. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
- Page 24 Ensure that the pitch does Figure 34: Coil shelf not exceed 1/4 in. per length of coil. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
- Page 25 TXV). See Installing a piston Installing a TXV sealant to seal all openings. detailed instructions. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
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Page 26: Critical Coil Projection: Xau Coils
To help ensure a successful installation, correctly design and install the duct system. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems... -
Page 27: Connecting The Condensate Drain
If a secondary drain is not used, you must plug the secondary drain. See Figure 39, Figure 40, Figure 41, or Figure 42. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems... - Page 28 12. If a piston is used, install the Schrader core into the suction header, and reinstall the cap. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
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Page 29: Cleaning The Coil
After capturing airflow data and selecting the correct blower speed, seal the holes appropriately to prevent air leakage. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems... - Page 30 - For optimal performance, external static pressures of 0.2 in. W.C. to 0.6 in. W.C. are recommended. Applications above 0.6 in. W.C. are not recommended. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
- Page 31 0.05 0.08 0.12 0.17 0.23 0.30 0.37 0.45 XAHD60G 0.02 0.04 0.06 0.09 0.13 0.16 0.21 0.26 0.32 Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
- Page 32 XAUA24B 0.05 0.11 0.19 0.28 XAUB30C 0.04 0.07 0.11 0.15 0.21 XAUB36D 0.03 0.06 0.11 0.16 0.23 0.30 Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
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Page 33: Instructing The Homeowner
Instruct the homeowner that the indoor coil drain pan must be inspected and cleaned regularly to prevent odors and ensure proper drainage. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems... - Page 34 - XAU Figure 41: Location of coil trapped and plugged drain connections with furnace - XAF and XAH Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
- Page 35 Figure 42: Location of coil trapped and plugged drain connections with modular air handler - XAF and XAH Note: Verify that all drains are tapped or plugged. Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps Johnson Controls Ducted Systems...
- Page 36 Figure 43: Template for drain and refrigerant lines on coil access door Third-Party Trademarks Notice: For information about third-party trademarks, refer to the relevant company websites. Subject to change without notice. Published in U.S.A. Copyright © 2021 by Johnson Controls. All rights reserved. Johnson Controls Ducted Systems...
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