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Duo-Therm 66000 Series User Manual

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Manual Compliments of
Northwest RV Supply
Printed From
http://www.nwrvsupply.com
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Duo-Therm 66000 Series Specifications

General IconGeneral
BrandDuo-Therm
Model66000 Series
CategoryFurnace
LanguageEnglish

Summary

FOR YOUR SAFETY

If You Smell Gas

Steps to take if gas odor is detected: open windows, don't touch switches, extinguish flames, call supplier.

CAUTION

Warning about appliance modification, high surface temperatures, and supervising children.

OPERATIONAL CHECKOUT

Initial Setup and Safety

Turn off thermostat and gas valve, wait, replace front panel, and set desired temperature.

Operation and Ignition

Allow delay for fan motor, burner ignition, and retry steps if ignition fails.

SEQUENCE OF NORMAL OPERATION

Thermostat Call to Ignition

Steps from thermostat call to burner ignition, including fan delay and air switch engagement.

Operation to Shutdown

Flame established, thermostat satisfied, gas valve closes, and blower continues briefly.

MAINTENANCE AND CLEANING

General Cleaning and Inspection

Keep unit clean, check for soot deposits, and inspect burner, venting, and gas connections yearly.

REMOVING HEATING ASSEMBLY AND BURNER

To Remove Heating Assembly

Steps to disconnect wiring, gas supply, and screws to remove the heating assembly.

To Remove Burner

Steps to remove the burner by releasing a ratchet clip and lifting it off the mounting pin.

To Replace Burner

Instructions for installing a new burner assembly, securing it with a ratchet clip.

SERVICE HINTS, DIAGNOSIS AND CORRECTIVE MEASURES

Complaint: No Heat

Troubleshooting steps for when the unit produces no heat, checking electrical supply and blower speed.

TROUBLESHOOTING AND ADJUSTMENT

Electrical Checks

Procedure for short circuit checkout, checking fuses, and battery voltage.

Gas and Airflow Issues

Checking gas supply, combustion air switch function, and gas control valve operation.

Thermostat and Altitude

Adjusting the thermostat's heat anticipator and understanding high altitude deration.

DIRECT SPARK IGNITION SYSTEM

Ignition and Flame Sensing

How the ignition system works, including spark, gas valve, and flame sensing circuitry.

SYSTEM CHECKS AND MALFUNCTIONS

Power, Grounding, Wiring & Components

Checks for input polarity, grounding, wiring, high voltage, electrode, and valve issues.

Erratic Operation

Addressing random shutdowns or cold start problems by checking flame current.

LIMITED ONE YEAR WARRANTY

Warranty coverage and exclusions

Details on what the warranty covers, exclusions, and proof of purchase requirements.

Heat chamber warranty

Specific five-year warranty terms for the heat chamber with pro-rated replacement options.

Warranty limitations

Legal limitations on implied warranties, incidental/consequential damages, and specific rights.

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