To Next PageTo Next Page
Need help?Do you have a question about the Lennox ML193UHE Series and is the answer not in the manual?
General| Model | ML193UHE Series |
|---|---|
| Type | Gas Furnace |
| Efficiency Rating | Up to 93% AFUE |
| Heating Capacity | Up to 100, 000 BTU |
| Stages | Single-stage |
| Energy Star Certified | Yes |
| Fuel Type | Natural Gas |
| Blower Type | Variable Speed |
| Warranty | 5-Year Limited Warranty on covered components. This product may be eligible for valuable 10-Year Limited Extended Warranty coverage with product registration. |
| Cabinet Type | Multi-position |
| Warranty on covered components | 5-year limited warranty |
Lists heating input/output, temperature rise range, and manifold pressure for each model.
Details pipe sizes for intake, exhaust, and drain connections.
Specifies blower motor type, HP, and air volume range for different models.
Safety guidelines to prevent damage to electronic components from static discharge.
Identifies the transformer, circuit breaker, and integrated ignition control within the control box.
Covers the hot surface ignition system, its diagnostic LED, and troubleshooting codes.
Details the electronic ignition system, including pre-purge and trial for ignition sequences.
Identifies key heating components like limit switches, heat exchangers, and gas valve.
Details the primary and secondary heat exchanger construction and efficiency.
Details the pressure switch function for ensuring proper combustion air flow.
Steps for installing a new motor control module, including wiring and alignment.
General rules and recommendations for vent pipe terminations, including clearances and material protection.
Specifics on intake and exhaust pipe terminations for direct vent systems.
Pre-start-up checks including electrical, traps, and drains for safe operation.
Procedures for safely starting the furnace for heating operation, including gas valve checks.
Instructions on safe operation, manual control, and troubleshooting of the gas valve.
Troubleshooting guide for common operational failures, including checks for thermostat, power, and blockages.
Procedures for testing gas piping connections for leaks using leak detection methods.
Steps to test gas supply pressure and flow rate using a gas meter clocking chart.
How to measure and check gas line supply pressure at the gas valve.
Procedure for measuring manifold gas pressure to ensure correct combustion.
Describes the step-by-step operation of the furnace during heating cycles.
Flow chart and diagnostic codes for troubleshooting heating operational issues.
Flow chart and diagnostic codes for troubleshooting cooling operational issues.
