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A.O. Smith
VB/VW- 750, VB/VW- 1000 instruction manual
Models:
VB/VW- 1000
VB/VW- 750
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52 pages
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Troubleshooting
Install
Wiring Diagram
Replacement Parts
Warranty
Dimension
Maintenance
Connecting Vent to Boiler
UIM Operating Procedures
Adjustment
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notes
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Contents
Models
Safe INSTALLATION, USE and Service
General Safety
GAS and Electrical Characteristics
Dimension and capacity data
Capacity and Flow data
Recovery Capacities
Introduction
Contents
High Altitude Installations
Precautions
Field Installed Components
Grounding Instructions
Control Components
ON/OFF Switch
Water Temperature Limit Controls
Temperature Probes
Circulating Pump
Location
Required Ability
Panels and Covers
VB HOT Water Heating BOILERS, are shipped with a 50 psi
Chemical Vapor Corrosion
Installtion Clearances
Leveling
Air Requirements Breathing Hazard Carbon Monoxide Gas
Outdoor Air Through One Opening
Outdoor Air Through Two Openings
OutdoorAir Through Two HorizontalDucts
Outdoor Air Through Two Vertical Ducts
Air From Other Indoor Spaces
Power Vent
Termination Clearances Sidewall Power Vent
Direct Vent
Termination Clearances Sidewall Direct Vent
Venting System Using AL 29-4C
Special Installation Considerations
Connecting Vent to Boiler
Horizontal Installtion Requirements
Vertical Installation Requirements
Venting Supports
Vertical Termination
BELOW. Keep Clear of ALL Obstructions
Direct Vent Installation Requirements
Direct Vent Horizontal
Direct Vent Using TWT with Vertical Intake
General
System installation
Hot Water Heating Hydronic Equipment
Internal Contaminants
Remote Probe Installation Procedure
Hard Water Conditions
Thermal Expansion Closed System
Gas Supply Line Sizing
Gas Connections
Typical PRIMARY, Secondary Piping
ONE VF Model VW HOT Water Supply Boiler with Vertical Tank
ONE VF Model VW HOT Water Supply Boiler with Horizontal Tank
Wiring
Suggested Pipe Size For Multiple Gas Appliances Propane Gas
Suggested Pipe Size For Multiple Gas Appliances Natural Gas
Connection Diagram
Wiring Diagram
Page
VB/VW-500, 750 & 1000 Schematic Diagram
Filling Hot Water Supply Boiler Installation
Filling and Purging of Heating Boiler Installation
Operation
Purging Gas Line
Risk of Scalds
Water Temperature Regulation
MCB/FCB Dipswitches
MCB Ten Position Dipswitch
MCB Three position Dipswitch
Lighting & Operation Instructions for Models VB/VW 500, 750
Setting of the Test Mode
Adjustment
High Fire Setting Natural GAS
Propane
Inputs to MCB
Operating Sequence
Temperature Setpoints System Control Algorithm
UIM Operating Procedures
Description of FCB control states
OperatingSetpointAdjustmentProcedure
HighLimitDifferentialSetpointAdjustment Procedure
UIM LED’s
Fault Messages and Troubleshooting Guide
Fault Displayed Description Red LED Lockout
Troubleshooting Ignition System
Troubleshooting Gas Valve
Preventative maintenance
Main Burner
Relief Valve
Burner Maintenance
Combustion Air Filter
Blower Compartment
HeatExchangerPreventativeMaintenance
Venting Maintenance
Tube Cleaning Procedure Mechanical Removal of Deposits
Replacement Parts
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Limited Warranty
Tennessee Waltz Parkway, Ashland City, TN Phone
