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General| Brand | ECR International |
|---|---|
| Model | HML-C |
| Category | Furnace |
| Language | English |
Details the specific furnace models covered in the manual, their type, and capacity range.
Covers general safety warnings, heat loss calculation, unit placement, and required clearances.
Outlines integration requirements when the furnace is used with air conditioning systems.
Specific instruction on removing heat exchanger support screws for improved accessibility.
Details the necessary air openings for proper combustion in various room types and construction.
Specifies proper installation and safety requirements for chimney and flue pipe connections.
Notes the recommended flue draft pressure and methods for checking over-fire draft.
Covers draft regulators for chimney venting and specific requirements for sidewall venting applications.
Describes the electronic fan timer boards and their role in blower operation and safety limits.
Outlines wiring requirements conforming to CSA, NFPA, and local electrical codes.
Instructions for installing optional humidifiers and the fuel system, including filters and piping.
Guides on selecting nozzles and adjusting the fuel-to-air ratio for optimal combustion efficiency.
Emphasizes correct electrode placement for smooth ignition and efficient combustion.
Details the safety control, cad cell maintenance, and combustion chamber inspection and alignment.
Explains the direct drive blower systems for HML-C (PSC) and HMLV-C (ECM) models.
Outlines homeowner responsibilities including air filter maintenance and visual inspections.
Details tasks performed by a professional service technician during annual maintenance.
Step-by-step guide for starting and operating the HML-C model furnace.
Step-by-step guide for starting and operating the HMLV-C model furnace.
Details on ECM motor features like soft start, soft stop, dehumidification, and continuous fan operation.
Table providing specifications for Beckett AF series oil burners used with chimney venting.
Table detailing specifications for Beckett AFII series oil burners for sidewall or chimney venting.
Table of specifications for Riello 40F series burners used with chimney venting.
Table of specifications for Riello BF series burners for sidewall venting.
Guides for adjusting combustion air for Beckett and Riello oil burners.
Specific gap and distance settings for Beckett and Riello burner electrodes.
Steps for initiating operation, fine-tuning combustion, and testing oil pressure.
Notes on factory settings and consulting Riello installation manuals for specific adjustments.
Table detailing PSC blower speed configurations for different models and static pressures.
Table showing PSC blower performance (CFM) at various static pressures.
Table listing cabinet dimensions, plenum openings, and filter sizes for HML-C/HMLV-C.
Detailed chart for setting DIP switches on the ECM blower control board for various inputs.
Explanation of symbols and color codes used in the wiring diagrams.
Wiring diagram for chimney vented HML-C and HMLV-C models.
Specific wiring diagram for Beckett AF burners.
Wiring diagram for direct vent HML-C and HMLV-C models.
Specific wiring diagram for Beckett AFII burners.
Steps for starting the burner, bleeding lines, setting pressure, and checking temperature rise.
Procedures to verify the proper operation of safety controls and fan off delay settings.
Important reminders for safe operation, full cycle testing, and venting system checks.
Detailed breakdown of the oil primary control's operation from idle to run states.
Explains control logic for flame sensing, spark ignition, and carryover timers.
Describes control actions upon thermostat satisfaction or loss of flame.
Visual representation of the fan timer board used in HML-C models.
Visual representation of the ECM tap board used in HMLV-C models.
Illustrates the sequence of states: Idle, Trial, Carryover, Run, Lockout, and Recycle.
Shows how the control transitions between states based on system conditions and flame presence.
Table detailing system responses for HEAT, COOL, FAN, and LIMIT modes of the Electronic Fan Timer.
Explanation of EFT LEDs and their corresponding thermostat signal inputs.
Explains LED meanings for normal operation and fault conditions.
Details testing cad cell resistance using LED flash codes and necessary equipment.
Initial checks for power, limit switches, electrodes, and igniter before control diagnosis.
Warning about disconnecting thermostat wires to prevent damage to controls.
Troubleshooting steps when the burner motor does not start during a call for heat.
Diagnosing safety lockouts indicated by a flashing light on the primary control.
Continued steps for diagnosing safety lockouts and indicator light flashing issues.
Procedures for testing the cad cell's response to flame and ambient light.
Further steps for oil primary control faults, including thermostat and wiring checks.
Introduces a table for diagnosing common system-wide problems and their remedies.
Troubleshooting steps for when the furnace does not start, including fuel supply, motor, and filter issues.
Diagnosing problems where the burner starts but repeatedly shuts down or sputters at the nozzle.
Diagnosing high fuel usage, excessive smoke, and soot buildup from poor combustion or alignment.
Troubleshooting lack of heat, uneven heating, and temperature regulation problems.
Diagnosing issues with supply air being too hot, too cool, or fluctuating during operation.
Ensuring all safety devices, components, and electrical connections are correctly set and secure.
Essential knowledge for homeowners regarding operation, maintenance, and service contact.
Space for recording installation contractor, fuel supplier, and service technician contact information.
Detailed list of replacement parts for highboy models with reference and part numbers.
Lists specific replacement parts for direct vent highboy models.
A visual diagram illustrating the location of various components within the furnace.
Blank space provided for user-added notes and remarks.
Provides addresses, phone numbers, and fax numbers for the manufacturer for support.
