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CYCLONE Xi BTH 500A
A.O. Smith CYCLONE Xi BTH 500A User Manual
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9
US DIRECT VENT
CANADIAN
DIRECT VENT
FIGURE 5.
CAUTION
TO
PREVENT EXHAUSTING
PRODUCTS FROM
CIRCULA
TING TO
THE
AI
R
IN
T
AKE
IN
WIN
DY
/C
OL
D
A
RE
AS
,
TH
E
MA
XI
MU
M
PRA
CT
IC
AL
DIST
ANCE BETWEEN THESE TWO TERMINALS IS RECOMMENDED.
8
10
Table of Contents
Table of Contents
3
Water Temperature Control
3
Dishwashing Machine Requirement
5
High Limit Switch (E.C.O.)
5
Water Temperature Setpoint Adjustment Procedure
5
Circulating Pump
6
Installation Instructions
6
Required Ability
6
Insulation Blankets
6
Locating the Heater
6
Clearances
7
Hard Water
7
Air Requirements
7
Mechanical Exhausting of Room Air
7
Unconfined Space
7
Confined Space
7
Chemical Vapor Corrosion
7
Installation Requirements for the Commonwealth of Massachusetts
8
Venting
8
Vent Pipe Termination
11
Direct Venting
11
Direct Vent Terminal Installation
11
Installation Sequence
12
Vertical Vent Terminal Installation
12
Installation of Vent System
13
Vent Pipe Preparation
14
Controls and Switches
14
Blower Prover Switch
14
Blocked Outlet Prover Switch
14
Blocked Inlet Prover Switch
14
Low Gas Pressure Switch
14
On/Off Switch
14
Hot Surface Igniter
15
Gas Piping
15
Connection of Gas Pipe
15
Purging
16
Gas Meter Size - City Gases Only
16
Gas Valves
16
System Connections
16
Thermometers
16
Relief Valve
16
Water Line Connections
16
Closed System
16
Heater Wiring
17
Water (Potable) Heating & Space Heating
17
Sequence of Operation
20
Electronic Control
20
Overview
20
Operating States
20
Adjusting the Operating Set Point
21
Changing the Display Units
22
Fault and Warning Conditions
22
Access to the Current Fault or Warning
23
Viewing the Fault History
24
Viewing Information about the Heater
24
Operating Instructions
25
Adjustment Procedure (Initial Start-Up)
25
Lighting Instructions
26
Cathodic Protection
27
Precautions
27
Prior to Start-Up Required Ability
25
General Information
27
Power Burner
27
High Limit
27
High Altitude Installations
27
Maintenance
27
General
27
Maintenance Schedule
27
Flushing
28
Draining
28
Sediment Removal
28
Lime Scale Removal
28
Powered Anode System
29
Drain Valve and Access Panels
29
Relief Valve
29
Vent System
29
Installation Diagrams
30
Multiple Unit Installations
35
Checklist and Service Information
36
Burner Operational Problems
36
Not Enough or no Hot Water
36
Water Is too Hot
36
Water Heater Makes Sounds
36
Troubleshooting
36
Water Leakage Is Suspected
36
Replacement Parts
38
Limited Warranty
39
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A.O. Smith CYCLONE Xi BTH 500A Specifications
General
Brand
A.O. Smith
Model
CYCLONE Xi BTH 500A
Category
Water Heater
Language
English
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