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BTH 120 - 250
A.O. Smith BTH 120 - 250 Gas Water Heater Manuals
Manuals and User Guides for A.O. Smith BTH 120 - 250 Gas Water Heater. We have
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A.O. Smith BTH 120 - 250 Gas Water Heater manual available for free PDF download: Installation & Operation Instruction
A.O. Smith BTH 120 - 250 Installation & Operation Instruction (33 pages)
COMMERCIAL GAS WATER HEATER GAS-FIRED POWER BURNER FOR DOMESTIC HOT WATER
Brand:
A.O. Smith
| Category:
Water Heater
| Size: 0 MB
Table of Contents
Rough-In -Dimensions
2
Recovery Capacities
2
Table of Contents
3
Features
4
Water Temperature Control
4
High Limit Switch
4
Dishwashing Machine Requirements
5
Circulating Pump
5
Installation
5
Insulation Blankets
5
Clearances
6
Hard Water
6
Air Requirements
6
Venting
6
Direct Vent
7
Horizontal Vent
7
Direct Venting
8
Direct Vent Terminal Installation
8
Installation Sequence
9
Exhaust Vent Terminal
9
Intake Vent Terminal
9
Vertical Vent Terminal Installation
10
Installation of Vent System
10
Installation Sequence
10
Vent Length Table
11
Vent Pipe Preparation
11
Controls and Switches
11
Blower Prover Switch
11
Blocked Outlet Prover Switch
12
Blocked Inlet Prover Switch
12
Low Gas Pressure Switch
12
On/Off Switch
12
Connection of Gas Pipe
13
Purging
13
Gas Meter Size
13
Gas Pressure Regulation
13
Water Line Connections
14
Closed System
14
Heater Wiring
14
Integrated Water Heater Control
14
Operation
15
Self Diagnostic Controller
15
Sequence of Operation
15
Gas Valve LED Flashing
15
Error Codes
16
Fault Conditions
16
No Incoming Line Voltage
16
No Low Voltage
16
ECO Switch Open
17
Combustion Air Blockage
17
Control Bad
17
Prior to Start up
18
Operating Instructions
18
Adjustment Procedure
18
Initial Start-Up
18
Before Operating
19
To Turn off Gas to Appliance
19
Cathodic Protection
20
Precautions
20
High Altitude Installations
20
Maintenance
20
Gas Supply Specifications
20
Flushing
21
Draining
21
Sediment Removal
21
Lime Scale Removal
21
Drain Valve and Access Panels
22
Vent System
22
Relief Valve
22
To Inspect or Replace an Anode
22
Installation Diagrams
23
Manifold Kits
28
Two Unit Manifold Kit
28
Three Unit Manifold Kit
28
Four Unit Manifold Kit
28
Checklist and Service Information
29
Troubleshooting
29
Burner Operational Problems
29
Not Enough or Not Hot Water
29
Motor will Not Run
30
Noisy Burner Operation
30
Gas Fails to Shut off
30
Replacement Parts
30
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Water Heater
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