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GAS-FIRED BOILER Boiler Manual
1
CONTENTS
Part 1 – Product and Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3, 4
Part 2 – How The Boiler Operates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Part 3 – Prepare Boiler Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
A. Boiler Location Should Be Level
B. Installations Must Comply With:
C. Before Locating Boiler
D. Clearances for Service Access
E. Residential Garage Installation
F. Exhaust Vent and Intake Air Vent
G. Prevent Combustion Air Contamination
H. When Removing a Boiler from an Existing Common Vent System
Part 4 – Prepare Boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
A. Remove Boiler from Box
Part 5 – Boiler Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-24
– Boiler Piping Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-24
A. Relief Valve
B. General Piping Information
C. Separate Low Water Cutoff
D. Backflow Preventer
E. System Water Piping Methods
F. Circulators
G. Hydronic Piping with Circulators, Zone Valves and Multiple Boilers
H. Circulator Sizing
I. Fill and Purge Heating System
J. Zoning with Zone Valves
K. Zoning with Circulators
L. Multiple Boilers
M. Boiler Piping Details
Part 6 – Boiler Piping with Vision 1 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
– Boiler Piping Details With Vision I System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-35
A. Vision 1 System Piping
B. Zoning with Zone Valves Using Vision I
C. Zoning with Circulators Using Vision I
D. Boiler Piping Details with the Vision I System
Part 7 – Venting Combustion Air And Condensate Removal. . . . . . . . . . . . . . . . . . . . 36-44
– Venting Details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42-44
A. Installing Exhaust Vent and Intake Air Vent
B. General
C. Approved Materials for Exhaust Vent and Intake Air Vent
D. Exhaust Vent and Intake Air Vent Pipe Location.
E. Exhaust Vent and Intake Air Vent Sizing
G. Exhaust Vent and Intake Air Pipe Installation.
H. Heater Removal from a Common Vent System
I. Condensate Removal System
J. Diagrams for Side Wall Venting
K. Diagrams for Vertical Venting