Munchkin
399M
manual
Maintenance
Ad
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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MAINTENANCE
40
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Contents
Munchkin High Efficiency 399M Commercial Boiler
What to do if YOU Smell GAS
Using this Manual
Using this Manual
Table of Contents
Munchkin Ratings and Dimensions
Part 1. General Information
General Information
HOW IT Operates
Dimensions PRE-INSTALLATION Requirements
Part 2. Electrical
General Information / Electrical
Pressure Relief Valve
Electrical Connection
Electrical
Part 3. GAS Connection
Electrical / GAS Connection
GAS Connection
GAS Connection
GAS Piping
GAS Table
Combustion Settings
Munchkin Burnertech GAS Valve
Part 4. Venting
Venting
Approved Venting Materials
Venting the Munchkin in 4 or 6 Plastic Pipe
Venting
Important Note
Longer Vent Runs Using a Combination 4 to 6 Pipe
Fittings or Piping Equivalent Feet
Diagrams for Sidewall Venting
Heater Removal from a Common Vent System
Diagram for Vertical Venting
Part 5. Piping
Venting / Piping
Condensate Requirements
Hydronic Piping with Circulators or Zone Valves
Piping
Circulator Sizing
Fill and Purge Heating System
Piping Symbol Legend
Piping Illustrations
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
Part 6. START-UP Procedures
START-UP Procedures
Items to be Checked Before Lighting the Munchkin
Lighting Instructions
Adjusting the Temperature on the Munchkin Display
Operating Instructions
Status Menu
Test Mode
To Turn OFF GAS to Appliance
START-UP Procedures / Servicing
Munchkin Temporary Fault Condition
Part 7. Servicing
Sequence of Operation
Munchkin Fault Requiring Manual Reset
Servicing
Servicing
Remedy Call Factory for further assistance
Resistance Tables
Part 8. Maintenance
Maintenance
Leaks
Control Wiring Layout
Munchkin Controller
Maintenance
Maintenance
Page
Page
Heat Transfer Products, Inc LP-121 REV /20/04
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