DeWalt DXH90CFAK - User Manual

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Cordless Kerosene Forced-Air Heater DXH90CFAK, DXH90CFAKM

Radiateur au Kérosène à Ventilation Forcée DXH90CFAK, DXH90CFAKM

Calefactor de Aire Forzado a Kerosene DXH90CFAK, DXH90CFAKM

27300 REV E

WARNING: READ INSTRUCTIONS

CAREFULLY: Read and follow all

instructions. Place instructions in a safe

place for future reference. Do not allow

anyone who has not read these instructions

to assemble, adjust or operate the heater.

AVERTISSEMENT:

VEUILLEZ LIRE ATTENTIVEMENT

LES INSTRUCTIONS :

Lisez et observez toutes les

instructions. Conservez ces instructions dans un endroit

sécuritaire pour vous y référer ultérieurement. Interdisez

à quiconque n’ayant pas lu les présentes directives

d’assembler, de régler ou de faire fonctionner cette

fournaise.

ADVERTENCIA:

LEA CUIDADOSAMENTE

LAS INSTRUCCIONES: Lea y siga todas las

instrucciones. Conserve estas instrucciones en un

lugar seguro para futura referencia. No permita

que nadie que no haya leído estas instrucciones

arme, ajuste o use el calefactor.

NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!

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This document is an instruction manual for the DEWALT Cordless Kerosene Forced Air Heater, models DXH90CFAK and DXH90CFAKM.

Function Description

The DEWALT Cordless Kerosene Forced Air Heater is a portable heating device designed for various applications, including construction sites, workshops, and other outdoor or semi-enclosed spaces. It operates using kerosene fuel and is powered by DEWALT 20V MAX* and 12AH FLEXVOLT® batteries, providing cordless operation. The heater is designed to produce forced hot air to warm spaces. It features an ECO mode for fuel efficiency and a continuous heat (CH) mode for constant heating. The device includes a display screen that shows various operational parameters, battery status, and error codes.

Important Technical Specifications

Model Numbers: DXH90CFAK, DXH90CFAKM

Fuel Type: Kerosene (1-K kerosene fuel, factory tested for use with No.2-K Kerosene, No.1 or No.2 Diesel, No.1 or No.2 fuel oil or JP8).

Power Source: DEWALT 20V MAX* and 12AH FLEXVOLT® batteries. The heater is CSA certified for use with only No. 1-K kerosene fuel. Factory tested: Kerosene, Diesel #1 and #2, Fuel Oil #1 and #2, JP8 (Jet A Fuel).

BTU/hr Output:

HIGH (MAX): 90,000 BTU/hr (26.3 kW)
LOW (ECO): 75,000 BTU/hr (22 kW)

Fuel Consumption Rate:

MAX: 0.67 GAL/hr (2.5 L/hr)
ECO: 0.56 GAL/hr (2.1 L/hr)

Tank Capacity: 4 GALLONS (15.14 L)

Fuel Run Time:

ECO: 6.3 hours
MAX: 5.25 hours

Electrical Input: 115 V, 60 Hz, 1.8 A

Assembled Dimensions: 13.25" x 25" x 22.25" (33.6 cm x 63.5 cm x 56.5 cm)

Dry Weight: 30 lbs. (13.61 kg)

Full Weight: 56 lbs. (25.4 kg)

Approximate Heating Area: 2250 SQ. FT (209 SQ. M)

Thermostat Range: 23°F to 99°F (-5°C to 37.2°C)

Battery Compatibility: DEWALT rechargeable battery packs. The manual provides a table of approximate run times for 20V MAX* and 12AH FLEXVOLT® batteries, indicating that actual run times may vary due to state of charge, battery temperature, and battery age.

Electrical Connections: The heater is designed for a nominal 120V circuit and should be connected to a grounded outlet. A temporary adaptor may be used to connect this plug to a 2-pole receptacle if a properly grounded outlet is not available. Extension cords should be rated for outdoor use and have sufficient wire gauge for the length of the cord to prevent voltage drop.

Usage Features

Operating Modes:

ECO Mode: Maximizes fuel efficiency, providing longer run times. The heater will automatically adjust to maintain the set temperature.
MAX Mode: Provides maximum heat output.
Continuous Heat (CH) Mode: The unit runs until out of battery, fuel, or manually turned off.
Cold Start (CS) Mode: Designed for starting the heater in extremely cold ambient temperatures. The cold start feature helps ignite and recirculate cold fuel to warm the prime fuel pump.

Display Screen: An LCD display shows various information including:

Room/Set Temperature
Mode (ECO/MAX/CH/CS)
Battery Gauge (for Pack 1 and Pack 2)
Fuel Pump Failure
Continuous Heat
Relocation Detection Switch Error
Li Ion Temperature Sensor Error
Low Battery Shutdown (Lb)
Low Fuel Shutdown (LF)
Cold Start Mode (CS)
Ambient Temperature below 23°F
System Communication Failure (EC)
Error Codes (E0-E9, EP, Lb, LF, CS, SE)

Charger Operation: The manual provides a chart indicating the charging status of the battery pack (charging, fully charged, hot/cold pack delay) based on the indicator light. The charger will not charge a faulty battery pack.

Safety Precautions:

NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
Always use 1-K kerosene fuel.
Ensure proper ventilation to prevent carbon monoxide poisoning.
Do not use on wood floors or other combustible materials.
Maintain a safe distance from combustible materials (at least 1 inch thick and extending 3 feet or more beyond the heater in all directions).
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
Do not move, handle, or relocate the heater while it is powered on.
Do not submerge the battery pack in any liquid or allow any liquid to enter the battery pack.
Always operate only on a stable, level surface.

Maintenance Features

Annual Maintenance Schedule:

Fuel Filter: Remove the fuel filter from the fuel line and direct compressed air through the filter in the opposite direction of fuel flow.
Fuel Lines: Inspect fuel lines for any drying, cracking, or damage.

Storage:

Store the heater in a dry location free from fumes or dust.
Drain and flush the fuel tank with clean fuel for extended storage to minimize condensation.
Store kerosene in containers that are marked "KEROSENE".
When the heater is stored for long periods of time, it is recommended to leave the heater plugged into a 120V outlet. This will charge and maintain the internal backup battery, ensuring optimal performance after storage.

Servicing:

A hazardous condition may result if a heater is used that has been modified or is not functioning properly.
The flame is contained within the heater.
The flame is essentially blue with perhaps some yellow tipping.
There is no strong disagreeable odor, eye burning, or other physical discomfort.
There is no smoke or soot internal or external to the heater.
There are no unplanned or unplanned shut downs of the heater.
Do not use a heater which is different from that shown.
For servicing or replacing batteries, please note:
- Do not store or carry the battery pack so that metal objects can contact exposed battery terminals.
- If battery contents come into contact with the skin, immediately wash area with mild soap and water.
- If battery liquid gets into the eye, rinse water over the open eye for 15 minutes or until irritation ceases.
- If medical attention is needed, the battery electrolyte is composed of a mixture of liquid organic carbonates and lithium salts.
- Contents of opened battery cells may cause respiratory irritation. Provide fresh air. If symptoms persist, seek medical attention.

Troubleshooting: The manual provides a detailed table of error codes (E0-E9, EP, EC, Lb, LF, CS, SE) with descriptions, reasons, and resolutions. Common issues include relocation detection errors, photo cell errors, ambient temperature sensor errors, HLS (high limit switch) errors, ignition failures, fan failures, power supply failures, backup battery boost converter failures, backup battery failures, fuel pump failures, system communication failures, low battery shutdowns, low fuel shutdowns, cold start mode issues, and Li Ion temperature sensor errors.

Warranty: DEWALT warrants its heaters and accessories to be free from defects in material and workmanship for a period of 3 years from the date of purchase. The manufacturer will repair or replace this product free of charge if it has been proven to be defective within the 3-year period, and is returned at customer expense with proof of purchase to the manufacturer within the warranty period.