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SW 37-670 Features And Components, Actual Configuration May Vary
Models:
SW 37-670
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Troubleshooting
Specifications
Install
Wiring Diagrams
Dimension
Maintenance
Actual Configuration May Vary
High Temperature Limits
Precautions
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FEATURES AND COMPONENTS
ACTUAL CONFIGURATION MAY VARY.
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Contents
A DIVISION OF A. O. SMITH CORPORATION
ASME
COMMERCIAL ELECTRIC BOILERS
MODELS SW
SAFE INSTALLATION, USE AND SERVICE
DANGER
GENERAL SAFETY INFORMATION
PRECAUTIONS
HYDROGEN GAS FLAMMABLE
GROUNDING INSTRUCTIONS
INTRODUCTION
TABLE OF CONTENTS
Preparing for the Installation
DIMENSION DATA
SIZES AND DATA NW37 THRU NW150
SIZES AND DATA NW220 THRU
DIMENSION DATA cont’d
BOILER SPECIFICATIONS STANDARD
FEATURES AND COMPONENTS
ACTUAL CONFIGURATION MAY VARY
APPROVALS
MODEL AND RATING LOCATING THE BOILER
Facts to Consider About the Location
ASME
INSTALLATION
Required Ability
General
Pressure Relief Valve
CLOSED WATER SYSTEMS
THERMAL EXPANSION
ELECTRICAL DATA
Branch Circuit
Calculating Amperage Overcurrent Protection
Boiler Circuits
WIRING DIAGRAMS
STD. WIRING OPTIONAL OR FIELD WIRING AS REQ’D
STD. WIRING OPTIONAL OR FIELD WIRING AS REQ’D
CONTACTOR COIL INDICATION LIGHT
DIAGRAM THREE PHASE DELTA WITH STEP CONTROL
DIAGRAM THREE PHASE WYE WITH STEP CONTROL
HIGH TEMPERATURE LIMITS
TEMPERATURE REGULATION
OPERATION
Filling the Boiler
Temperature Controls
DRAINING
Water Temperature
Time to Produce 2nd & 3rd
MAINTENANCE
System Cleaning
Pressure Relief Valve Test
FLUSHING
TROUBLESHOOTING CHECKLIST
SYSTEM WATER TEST
Not enough or no hot water
Water is too hot
1.THE TANK
RENTON, WASHINGTON Technical Support
A DIVISION OF A. O. SMITH CORPORATION