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Weil-McLain Manuals
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HE II Boiler
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Weil-McLain HE II Boiler Manual
He ii series gas-fired, induced draft manual
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Contents
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Table of Contents
Table of Contents
Pre-Installation
Codes
Venting
Combustion Air and Ventilation Openings
Boiler Set-Up
Minimum Service Clearance
Foundation
Placing the Boiler
Piping
Hydrostatic Pressure Test
Recommended Boiler and System Piping for Single Zone (or Multiple Zones with Zone Valves)
Shipping Strap Removal
Expansion Tank Sizing
Piping with Diaphragm-Type Expansion Tank
Piping with Closed-Type Expansion Tank
Multiple Zoning with Circulators
Typical HE Multicirculator-Zoning
Bypass Piping
Use with Refrigeration System
Recommended Piping for Combination Heating & Cooling (Refrigeration) Systems
Verifying Venting System Operation
Chimney Draft Venting
Inside Chimney
Chimney Draft Venting Inside Chimney
Outside Chimney
Direct Exhaust
Venting Procedure
Horizontal Venting
Venting through Cold Areas
Direct Exhaust Vent Termination
Horizontal Venting - Non-Combustible Wall
Horizontal Venting - Combustible Wall
Gas Piping
Pipe Delivery Schedule
Additional Length of Pipe to be Added for each Elbow or Tee Bend in the Line
Gas Supply Piping
Wiring
Install Room Thermostat
Field Wiring Diagram
Final Adjustments
Water Treatment
Fill the System
Inspect Base Insulation
For Your Safety Read before Operating
Operating Instructions
To Turn off Gas to Appliance
Check-Out Procedure
Maintenance
Suggested Minimum Maintenance Schedule
Cleaning Boiler Heating Surfaces
Replacement Parts
Parts Lists
Component-Assemblies Replacement
Component Replacement Instructions
Section Assembly HE II
Base Assembly HE II
Jacket Assembly HE II
Flue Collector Assembly, Transition Assembly and Blower Cabinet Assembly HE II
Boiler Trim Assembly HE II
Ratings
Dimensions
Standard Equipment
Additional Equipment
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Table of Contents
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Venting
3
Wiring
4
Replacement Parts
5
Parts Lists
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This manual is also suitable for:
He ii 3
He ii 4
He ii 5
He ii 6
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