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Munchkin
399M
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Models:
399M
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Diagrams for Sidewall Venting
Piping Symbol Legend
Control Wiring Layout
Maintenance
START-UP Procedures
Combustion Settings
Using this Manual
Test Mode
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NOTES
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Contents
What to do if YOU Smell GAS
Munchkin High Efficiency 399M Commercial Boiler
Using this Manual
Using this Manual
Table of Contents
HOW IT Operates
Munchkin Ratings and Dimensions
Part 1. General Information
General Information
Dimensions PRE-INSTALLATION Requirements
Electrical Connection
Part 2. Electrical
General Information / Electrical
Pressure Relief Valve
Electrical
Electrical / GAS Connection
Part 3. GAS Connection
GAS Table
GAS Connection
GAS Connection
GAS Piping
Munchkin Burnertech GAS Valve
Combustion Settings
Venting the Munchkin in 4 or 6 Plastic Pipe
Part 4. Venting
Venting
Approved Venting Materials
Venting
Important Note
Fittings or Piping Equivalent Feet
Longer Vent Runs Using a Combination 4 to 6 Pipe
Heater Removal from a Common Vent System
Diagrams for Sidewall Venting
Diagram for Vertical Venting
Hydronic Piping with Circulators or Zone Valves
Part 5. Piping
Venting / Piping
Condensate Requirements
Circulator Sizing
Piping
Fill and Purge Heating System
Piping Illustrations
Piping Symbol Legend
Zone valves Make-up water
Zone valves
Mixing valve
Zone valves Make-up water
Piping
Space heating zone circuit Zone Circulators Make-up water
PB1 PB2
PB1 PB2
Lighting Instructions
Part 6. START-UP Procedures
START-UP Procedures
Items to be Checked Before Lighting the Munchkin
Operating Instructions
Adjusting the Temperature on the Munchkin Display
Status Menu
Test Mode
To Turn OFF GAS to Appliance
Sequence of Operation
START-UP Procedures / Servicing
Munchkin Temporary Fault Condition
Part 7. Servicing
Servicing
Munchkin Fault Requiring Manual Reset
Servicing
Remedy Call Factory for further assistance
Resistance Tables
Maintenance
Part 8. Maintenance
Leaks
Munchkin Controller
Control Wiring Layout
Maintenance
Maintenance
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Heat Transfer Products, Inc LP-121 REV /20/04
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Contents