Munchkin Controller, Control Wiring Layout | Munchkin 399M guide

MAINTENANCE

E. MUNCHKIN CONTROLLER

CONTROL WIRING LAYOUT

Fig. 8-1

*There is a spare 6.3 amp “slow blow” fuse included on the control cover. HTP p/n 7250-378 or you may purchase it from Radio Shack p/n: 270-1068

Caution: Do not replace with any amperage other than 6.3A

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Munchkin 399M manual Munchkin Controller, Control Wiring Layout

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 DimensionsPart 1. General Information General Information Dimensions PRE-INSTALLATION Requirements Electrical Connection Part 2. ElectricalGeneral Information / Electrical Pressure Relief Valve Electrical Electrical / GAS Connection Part 3. GAS Connection GAS Table GAS ConnectionGAS Connection GAS Piping Munchkin Burnertech GAS Valve Combustion Settings Venting the Munchkin in 4 or 6 Plastic Pipe Part 4. VentingVenting 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. PipingVenting / 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 ProceduresSTART-UP Procedures Items to be Checked Before Lighting the Munchkin Operating Instructions Adjusting the Temperature on the Munchkin Display Test Mode Status MenuTo Turn OFF GAS to Appliance Sequence of Operation START-UP Procedures / ServicingMunchkin 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 Page Page Heat Transfer Products, Inc LP-121 REV /20/04