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General| BTU | 300, 000 |
|---|---|
| Model | HW 300 |
| Category | Boiler |
| Input (BTU/h) | 300, 000 |
| Venting | Atmospheric |
| Type | Commercial Water Heater |
| Tank Capacity (Gallons) | NA |
| First Hour Rating (Gallons) | NA |
Boiler grounding requirements and electrical polarity sensitivity for proper operation.
Ensuring correct gas type matches boiler rating plate for safe operation.
Steps to take if boiler is exposed to fire, damage, or flooding.
Specific safety guidelines for propane/LP gas boiler installations and handling.
Defines a qualified installer/service agency based on ANSI standards.
Field installation of thermometers for detecting liming conditions.
Requirement for installing a drain valve for service purposes.
Fast heating of hydronic boilers requires attention to water flow rates.
Piping requirements for forced circulation hot water heating systems.
Explains thermal expansion effects in closed systems and the need for expansion tanks.
Recommendation for automatic vent valves at convectors or radiators.
Guidelines for manifold header sizing and spacing for split systems.
Proper use and maintenance of circulating pumps with the boiler unit.
Specifies the need for a qualified service technician for installation and service.
Guidelines for selecting an appropriate and safe location for boiler installation.
Procedure for safely replacing a boiler in a common venting system.
Defines unconfined spaces and makeup air requirements for appliance operation.
Discusses additional air needs for buildings with tight construction.
Instructions for calculating size and placement of openings for confined spaces.
Requirements for two permanent openings for outdoor air in confined spaces.
Requirements for a single permanent opening for outdoor air in confined spaces.
Guidelines for safe and proper installation of gas supply piping.
Procedure for purging air from gas lines before boiler operation.
Steps for verifying correct inlet gas pressure for boiler operation.
Methods for detecting gas leaks using approved leak detection solutions.
Guidelines for standard venting practices and material selection.
Rules for connecting boilers to shared venting systems.
Information on optional sidewall power vent systems.
Procedures for checking and maintaining the venting system.
Checking pilot and main burner flame characteristics for safe operation.
Step-by-step procedure for lighting the boiler safely.
Instructions on how to safely shut off gas supply to the appliance.
Step-by-step procedure for operating the boiler after lighting.
Instructions on how to safely shut off gas supply to the appliance.
Troubleshooting steps when no spark is generated at the pilot burner.
Procedure to test the continuity of the manual reset high limit switch.
Steps to manually test the operation of the pressure relief valve.
Guidelines for cleaning and flushing the hydronic system to remove contaminants.
Refers to A. O. Smith Users Information Manual for HW water systems.
Importance of correct wiring and labeling for safe operation.
Requirements for electrical work adhering to national and local codes.
Suggested piping configuration for a single boiler vertical storage tank recovery system.
