Munchkin MUNCHKIN HIGH EFFICIENCY HEATER with the "925" Controller manual

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Contents Munchkin High Efficiency Heater With the 925 ControllerUsing this Manual Special Attention BoxesTable of Contents Part 1. General Information Munchkin Ratings and DimensionsHOW IT Operates Recommended Service Clearances Dimensions 80M 140M/199M PRE-INSTALLATION Requirement GeneralPressure Relief Valve Part 2. ElectricalElectrical Connection Electrical Connection Wiring Directly to Central Heating Circulator GAS Piping Part 3. GAS ConnectionGAS Connection GAS TableDungs GAS Valve Part 4. Venting Approved Venting MaterialsVenting the Munchkin Direct vent terminal clearance Minimum clearance, C Longer Vent Runs Vented ApplianceHeater Removal from a Common Vent System Condensate RemovalDiagrams for Sidewall Venting Venting Diagrams for Vertical Venting Part 5. Piping Hydronic Piping with Circulators or Zone ValvesCirculator Sizing Munchkin T50M Munchkin T80M/80M Munchkin 140M Munchkin 199MFill and Purge Heating System Piping Symbol Legend Piping IllustrationsOFF Zone valves Piping Zone valves Make-up water Piping Space heating zone circuit Zone Circulators Make-up water PB1 PB2 PB1 PB2 Sequence of Operation Part 6. START-UP ProceduresItems to be Checked Before Lighting the Munchkin Lighting Instructions Operating InstructionsAdjusting the Temperature on the Munchkin Display Status MenuTest Mode To Turn OFF GAS to AppliancePart 7. Troubleshooting Munchkin Error Code925 Control Board Error Codes Resistance Tables Condensate Cleaning Instructions Part 8. MaintenanceMaintenance Procedures Before Each Heating SeasonMaintenance Control Wiring Layout Munchkin ControllerMaintenance Maintenance Page Page Munchkin R1