Desa NTH100, NTH150, NTH50, NTH70, NTH35 owner manual Portable Forced AIR Heaters, Safety Information

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PORTABLE FORCED AIR HEATERS

SAFETY

INFORMATION

WARNINGS

IMPORTANT: Read this Owner’s Manual carefully and completely before trying to assemble, oper- ate, or service this heater. Im- proper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning.

DANGER: Carbon monoxide poisoning may lead to death!

Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, and/or nau- sea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, per- sons with heart or lung disease or anemia, those under the influence of alcohol, and those at high altitudes.

Make certain you read and understand all Warnings. Keep this manual for reference. It is your guide to safe and proper operation of this heater.

•Use only kerosene or No. 1 fuel oil to avoid risk of fire or explosion. Never use gasoline, naphtha, paint thinners, alcohol, or other highly flammable fuels.

•Fueling

a)Personnel involved with fueling shall be qualified and thoroughly familiar with the manufacturer's instructions and applicable regulations regarding the safe fueling of heating units.

b)Only the type of fuel specified on the heater's data plate shall be used.

c)All flame, including the pilot light, if any, shall be extinguished and the heater allowed to cool, prior to fueling.

d)During fueling, all fuel lines and fuel- line connections shall be inspected for leaks. Any leaks shall be repaired prior to returning the heater to service.

e)At no time shall more than one day's supply of heater fuel be stored inside a building in the vicinity of the heater. Bulk fuel storage shall be outside the structure.

f)All fuel storage shall be located a minimum of 762cm (25 feet) from heaters, torches, welding equipment, and similar sources of ignition (exception: the fuel reservoir integral with the heater unit).

g)Whenever possible, fuel storage shall be confined to areas where floor penetrations do not permit fuel to drip onto or be ignited by a fire at lower elevation.

h)Fuel storage shall be in accordance with the authority having jurisdiction.

•Never use heater where gasoline, paint thinner, or other highly flammable vapors are present.

•Follow all local ordinances and codes when using heater.

•Heaters used in the vicinity of tarpaulins, canvas, or similar enclosure materials shall be located a safe distance from such materials. The recommended minimum safe distance is 304.8cm (10 feet). It is further recommended that these enclo- sure materials be of a fire retardant na- ture. These enclosure materials shall be securely fastened to prevent them from igniting or from upsetting the heater due to wind action.

•Use only in well-vented areas. Before us- ing heater, provide at least a 2800 square cm (three-square-foot) opening of fresh, outside air for each 100,000 Btu/Hr of rating.

•Use only in places free of flammable va- pors or high dust content.

•Use only the electrical voltage and fre- quency specified on model plate.

•Use only a three-prong, grounded exten- sion cord.

•Minimum heater clearances from com- bustibles:

Outlet: 250 cm (8 Ft.)

Sides, Top, and Rear: 125 cm (4 Ft.)

•Locate heater on a stable and level sur- face if heater is hot or running or a fire may occur.

•When moving or storing heater, keep heater in a level position or fuel spillage may occur.

•Keep children and animals away from heater.

•Unplug heater when not in use.

•When used with thermostat, heater may start anytime.

•Never use heater in living or sleeping areas.

•Never block air inlet (rear) or air outlet (front) of heater.

•Never move, handle, refuel, or service a hot, operating, or plugged-in heater.

•Never attach duct work to front or rear of heater.

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Contents Portable Forced AIR Heaters Safety Information Portable Forced AIR HeatersFuels Product IdentificationUnpacking Tools Needed AssemblyVentilation To Start Heater Extension Cord Wire Size RequirementsTheory Operation To Stop HeaterSchedule Preventative MaintenanceStoring TRANSPORTING, or Shipping How Often How ToTroubleshooting Observed Fault Possible Cause RemedyFuel Filter Service ProceduresUpper Shell Removal Spark Plug 35,000 Btu/Hr ModelPump Pressure Adjustment Air Output, Air Intake, and Lint FiltersNozzle Removing Air and Fuel Line Hoses, 35,000 Btu/Hr ModelProcedure if Rotor is Binding Pump RotorFan SpecificationsWiring Diagrams Illustrated Parts Breakdown NTH35 35,000 BTU/HR ModelParts List KEY Part Number Description QTYNTH50 50,000 BTU/HR Model Burner Head AssemblyMotor and Pump Assembly WLE-3 NTH70 70,000 BTU/HR Model Parts List NTH100 100,000 BTU/HR Model Lock Washer, #10 M16660 Photocell Bracket NTH150 150,000 BTU/HR Model Lock Washer, #10 HA3019 Photocell Assembly AIR Gauge KIT HA1180 AccessoriesWheels Handles Heavy Duty Wheels and Handle KIT HA1202EC Conformity Declaration EC Conformity DeclarationWarranty Information

NTH35, NTH70, NTH100, NTH50, NTH150 specifications

Desa NTH series consists of exceptional products designed to meet diverse demands in various applications. With models including NTH150, NTH35, NTH70, NTH100, and NTH50, this series offers a range of specifications and capabilities that cater to both residential and commercial needs.

The NTH150 model is the flagship in the series, featuring a powerful performance with a high output capacity. This model excels in energy efficiency, making it an exemplary choice for users aiming to reduce operational costs while preserving peak performance. With advanced temperature control systems, the NTH150 provides consistent and reliable results in various environments.

Moving to the NTH35, this model is designed for smaller applications while still ensuring high efficiency. It is compact and user-friendly, making it an ideal choice for domestic use. The NTH35 incorporates intuitive controls that allow users to easily monitor and adjust settings, thus ensuring optimal performance that meets the specific needs of smaller spaces.

The NTH70 strikes a balance between power and compactness, making it a versatile option for medium-range applications. This unit is designed with robustness in mind, incorporating durable materials that ensure longevity. It's equipped with smart sensors that track and adjust performance, maximizing efficiency and reducing wastage.

The NTH100 is known for its adaptability in various settings. It features a sleek design and is equipped with the latest technological advancements, including smart connectivity options. Users can effortlessly integrate the NTH100 into their existing setups, allowing remote monitoring and control through a mobile app. This feature enhances convenience and operational efficiency.

Lastly, the NTH50 serves as a practical solution for users seeking a middle ground between power and energy efficiency. With a well-rounded set of features, it accommodates diverse applications while promoting sustainability. Its straightforward interface simplifies operation, allowing even novice users to achieve optimal performance.

In summary, the Desa NTH series, comprising NTH150, NTH35, NTH70, NTH100, and NTH50, showcases a blend of innovation, efficiency, and ease of use. Each model is tailored to meet specific needs while providing advanced features and technologies that enhance performance and functionality. Users can confidently select a model from this series, knowing that they are investing in reliable, high-quality products that will stand the test of time.
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