Munchkin Gas-Fired Hot Water Boiler, Manual, Page: 2 / 80

GAS-FIRED BOILER
Boiler Manual
1
CONTENTS
Part 1 – Product and Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Part 2 – How The Boiler Operates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,7
Part 3 – Prepare Boiler Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
A. Remove Boiler from Box
Part 5 – Boiler Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-26
– Boiler Piping Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-26
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
WARNING
If the information in this manual is not followed exactly, a fire or explo-
sion may result causing property damage, personal injury or loss of life.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch: do not use any phone in
your building.
• Immediately call your gas supplier from a neighbor's phone.
Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified
installer, service agency or the gas supplier.