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Table of Contents
- 1 Important Instructions
- 2 Installing the Furnace
- 3 Furnace Location
- 4 Furnace Clearance
- 5 Ducts and Filters
- 6 Optional Accessories
- 7 Electrical Connections
- 8 Turning off the Power Supply
- 9 Operation
- 10 Installation Type Selection
- 11 Eco Mode
- 12 Airflow Settings
- 13 Maintenance and Troubleshooting
- 14 Preventive Maintenance
- 15 Air Filter
- 16 Claim Procedure
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Table of Contents
Related Manuals for Stelpro SFEX Series
Summarization of Contents
Important Instructions
Warning
Critical safety warnings to prevent injury, death, and product damage.
Installing the Furnace
Furnace Location
Guidance on selecting a suitable and safe location for furnace installation.
Furnace Clearance
Specifies required clearances around the furnace for safety and maintenance.
Ducts and Filters
Plenum Temperature Control Potentiometer
Explanation of the plenum temperature sensor and setpoint adjustment.
Optional Accessories
Information on installing optional accessories like air conditioners and thermostats.
Electrical Connections
Turning Off the Power Supply
Crucial safety step to disconnect power before electrical work.
Electrical Connections of the Furnace
Details on connecting the furnace to the power source and voltage selection.
Electrical Connection of the Thermostat
Electrical Connection of an Electronic Filter and a Humidifier
Wiring instructions for connecting auxiliary devices like filters and humidifiers.
Turning the Power Back On
Procedures for safely restoring power after installation and checks.
Operation
Control Panel
Overview of the furnace control panel buttons, LEDs, and their functions.
LED Legend
Explains the meaning of each LED indicator on the control panel.
Heating Demand
Describes how the furnace responds to heating demands from a one-stage thermostat.
Two-Stage Thermostat
Continuous Ventilation
Explains the selection of low and high-speed continuous ventilation modes.
Continuous Heating
Describes the continuous heating options (min/max) for consistent temperature.
Air Conditioning
How the furnace supports air conditioning systems.
Heat Pump
Installation Type Selection
How to select installation types (A or B) for heat pump compatibility.
Type "B", Standard Mode With Temperature Compensation
Describes Type B installation with temperature compensation in standard mode.
Operating Logic Table With a Thermostat
Eco Mode
Explains the energy-saving ECO mode and its operation sequences.
Plenum Temperature Adjustment in Heating Mode
Airflow Changes for the SFE Model
Explains how to modify blower speeds by changing motor relay connections.
Airflow Table (SFE)
Table listing airflow (CFM) and temperature rise (ΔT) for SFE models.
Airflow Table (SFEX)
Airflow Settings SFECM Models Only
Information on adjusting airflow settings for SFECM models using potentiometers.
Airflow Settings Table (SFECM)
Verifying the High Limit Thermal Protections
Procedure for verifying high limit thermal protection activation.
Maintenance and Troubleshooting
Preventive Maintenance
Steps to check before contacting a technician for furnace issues.
Air Filter
Instructions on air filter replacement and inspection.
Blower
Guidance on blower motor lubrication, inspection, and cleaning.
Control Card Autodiagnostic
Explains the function of the control card's pilot LED for diagnostics.
Problem
Unit Not Working
Common causes and checks for a non-operational furnace unit.
Unit Runs Continuously
Potential reasons and solutions for continuous furnace operation.
Unit Cycles Under Thermal Protection
Explains furnace cycling due to thermal protection and possible causes.
Overheating
Diagnosing and addressing overheating issues in the furnace.
Breaker Trips
Reasons why the circuit breaker might trip during heater activation.
Elements On, Motor Not Working
Steps to troubleshoot when heating elements are active but the motor is not.
Desired Room Temperature Not Reached
Diagnosing why the furnace fails to reach the set room temperature.
Stelpro Limited Warranty
Claim Procedure
Steps to follow when submitting a warranty claim for defective products.
Conditions, Exclusions and Disclaimer of Liability
Details warranty exclusions, limitations, and disclaimers of liability.
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