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A.O. Smith Cyclone XL 100 Series User Manual

A.O. Smith Cyclone XL 100 Series
44 pages
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5
FEATURES AND COMPONENTSFEATURES AND COMPONENTS
1
2
3
4
105
6
8
27
7
22
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2019
(Behind UIM)
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31
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29
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32
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33
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Figure 1 .Front View
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Figure 2 .Blower Burner Assembly
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30
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4
Figure 3 .(Top View (without plastic cover
Important: The Enable/Disable switch listed in this manual is NOT an “on/off” switch and does not disconnect 120 volt power to the
CCB and other heater components.
1. Water Heaters Enable/Disable Switch. When in the “Disabled” position the switch removes electrical power from the gas valve so
that water heating is disabled. The display, CCB, and other electrical components will still be energized and the display will read
“Water Heating Disabled.”
2. UIM (user interface module). The UIM includes the display circuit board and the control system’s LCD Touch Display. Used to
adjust various user settings and view operational information.
3. Central Control Board (CCB) enclosure. This enclosure houses the control system’s main circuit board, power supply board, power
transformer, and conguration key. The CCB regulates water temperature and controls all water heater functions. See Control
System Operation (page 37).
4. 120 VAC junction box. Incoming power supply, ground connections, and other eld installed electrical connections are made here.
See Power Supply (page 13) and Power Supply Connections (page 33).
5. Blocked Intake Air switch. Normally closed contacts that open on fall in pressure. This switch is used to insure intake (combustion)
air to the water heater is not restricted. The control system monitors this switch and will disable heating operation if its contacts are
open during a heating cycle.

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A.O. Smith Cyclone XL 100 Series Specifications

General IconGeneral
BrandA.O. Smith
ModelCyclone XL 100 Series
CategoryWater Heater
LanguageEnglish

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