Newmac NMRK-1 User manual

PORTABLE RADIANT HEATER
MODEL NMRK-1
Important Guidelines
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or
maintain the product described. Protect yourself and others by observing all safety information. Failure to
comply with instructions could result in personal injury and/or property damage! Retain instructions for future
reference. Should you need further information contact the manufacturer.
Danger Warning
If the information in this manual is not followed exactly, a re or explosion may result causing property
damage, personal injury or loss of life.
U. S. Residents
The installation of the equipment shall be in accordance with the regulation of authorities having jurisdiction
and NFPA 31.
852962C-3304H
PRO
NEWMAC
NEWMAC
227 Industrial Park Road
South Pittsburg, TN 37380
[phone]
CALIFORNIA PROPOSITION 65 WARNING:
This product can expose you to chemicals including carbon monoxide, which
is known to the State of California to cause cancer, birth defects and/or other
reproductive harm. For more information, go to www.P65warnings.ca.gov
Ce produit peut vous exposer à des produits chimiques, y compris le
monoxyde de carbone, qui est connu dans l'État de Californie pour causer
le cancer, des malformations congénitales et / ou d'autres problèmes de
reproduction. Pour plus d'informations, visitez www.P65warnings.ca.gov

-2-
Warning:
Keep a safety distance from all combustibles
materials in accordance with the guidelines of
this manual. Improper use of this unit may result
in re, poisonous gas, and explosion. Do not use
in a place where there are gasoline, solvent,
paint thinner, dust, or other ammable objects or
dangerous chemicals substances are stored. Warning:
Use this heater only in well ventilated areas. When
using this unit in a location where ventilating
equipment is not prepared separately, ventilation
is required for proper combustion and exhaustion.
Refer to the ventilating section of this manual.
Warning:
This unit is not intended for the use inside of a
residential home or RV vehicle. Improper use of
this heater can result in serious injury or death
from burns, re, explosion, electrical shock, and/
or carbon monoxide poisoning.
WARNING:
Before using this heater, please read the
operating instruction very carefully. This user’s
manual has been designed to instruct you as
to the proper manner in which to assemble,
maintain, store, and most importantly, operate
this unit in a safe and efcient manner.
Attention:
Always unplug the heater when not in use. Do
not leave this unit unattended while burning.
Voltage/Hz/amps 1201/60/10
Power Consumption 95W
BTU/hr., kW/hr. Max 60,000 (Max 17Kw)
Fuel Tank Capacity 3.2 gal (12liter)
Fuel Consumption 0.42 gal/hr (1.6 l/h)
Heating Area 968ft² (90m²)
Max. Heating Time 7.5 hr
Type Of Fuel Oil Kerosene
Max. Outlet Temp 950°F (510°C)
Overheat Safety OKAY
Dimension (L x W x H) 21.7” x 12.2” x 21.3”
Weight 30.4 lbs (13.8Kg)

-3-
Safety Information
CARBON MONOXIDE POISONING
This heater is a direct burning type heater that burns the kerosene/light oil then heat. This product is primarily
intended for temporary heating of well ventilated buildings under construction, alteration, or repair. Direct
heating type means that every substance burned at heater enter into the inside of the heating space directly.
Some carbon monoxide is generated from this product whose combustion rate is 98%. Ordinary person can
endure a little bit of carbon monoxide however, preventative measures should be taken with proper ventilation.
Improper ventilation not in compliance with this manual could lead to death. Use this heater only in well ventilated
areas. Early signs of carbon monoxide poisoning resemble u-like symptoms such as headaches, dizziness, and/
or nausea. Some people are more affected by carbon monoxide than others. These include pregnant women,
those with heart or lung problems, anemia, or those under the inuence of alcohol, or at high altitudes. Never use
this heater in living or sleeping areas.
Comply with the following without fail:
• Check the unit for shipping damage. If the unit is damaged, promptly inform dealer where you purchased
heater. Do not use a damaged unit.
• Do not alter this product. Do not use this product if it has been altered.
• Use only kerosene or light oil fuel. In the case of light oil, movement may not be smooth in a specic
environment.
• Do not use fuel such as gasoline, benzene, alcohol, white gas, camp stove fuel, paint thinners, or other
explosive fuels in this heater (THESE ARE VOLATILE FUELS THAT CAN CAUSE A FIRE OR EXPLOSION).
• Primarily for use outdoors, if used indoors insure adequate ventilation.
• Open space of min. 1m² per 23,000Kcal is required. Refer to the ventilation section of this manual.
• Do not use at a residential street.
• Do not use in a place where the product is exposed to water, rain, or sprayed liquid.
• Do not use where ammables such as gasoline, paint thinner, or volatile vapors/liquids are stored.
• Keep all combustible materials away from this heater.
MINIMUM CLEARANCES
Front/Ceiling: 5ft, Sides/Rear: 3.12ft
• Use only on a stable and level surface.
• Do not block air inlet (rear) or air outlet (front) of heater. Do not use duct work in front or at rear of this unit.
• Keep out of reach of children and animals.
• Do not move or handle heater while still hot.
• Do not transport heater with fuel in its tank.
COOLING AND VENTILATING PROCESS
This unit needs plenty of air (oxygen) to burn the fuel in the combustion chamber. To achieve a good combustion,
proper ventilation is necessary. If there is to much air from the ventilation system a blue ame will be generated
and ignition could fail. If there is poor ventilation a yellow ame will be generated. Poor ventilation will cause a
lot of smoking and smell. To prevent overheating if the air gets to hot while in use a cooling fan will be activated
along with a ventilating fan.
ELECTRIC CIRCUIT PROTECTION
This heater’s electrical system is protected by a fuse mounted to the PCB Assembly that protects it and other
electrical components from damage. If your heater fails to operate, check this fuse rst and replace as needed.
Refer to specication chart.
FLAME DETECTOR
This unit utilizes a photocell to monitor the ame in the burn chamber during normal operation. Should the burner
ame extinguish, it will cause the heater to shut off.
OVERHEATING PROTECTION SENSOR
This unit is equipped with a heat sensor designed to detect overheating during normal operation. If the
temperature of the heater goes over 176 °F to 194 °F the sensor will activate and cause the combustion chamber
to stop.
SETTING TEMPERATURE CONTROL FUNCTION
Use the temperature control knob to set the desired temperature. The unit will activate when the room
temperature is lower than the temperature shown in the display window.

-4-
Unpacking
Guard Assembly (For Canada Only)
Open the carton and remove all items. Check all of the items for shipping damage. If anything is damaged,
promptly inform the dealer where you purchased the unit.
NOTE: Do not throw away the box or other packing material, save for storage purposes.
Guard
Guard
Guard - S
Guard - U
Shell
Shell
Guard support
Interception
Guard Guard
Guard - S
Guard - U
Shell
Shell
Guard support
Interception
Guard
Guard
Guard - S
Guard - U
Shell
Shell
Guard support
Interception
Guard Guard
Guard - S
Guard - U
Shell
Shell
Guard support
Interception
Step 1 Step 2
Step 3 Step 4

-5-
Electrical Diagram

-6-
Using Fuel
For optimal performance of this heater it is strongly suggested that 1-K kerosene be used. 1-K kerosene has
been rened to virtually eliminate contaminants, such as sulfur, which can cause a rotten egg odor during the
operation of the heater. Light oil can be use however kerosene is recommended. Bulk fuel storage should be a
minimum of 25 ft. from heaters, torches, portable generators, or other sources of ignition. All fuel storage should
be in accordance with federal, state, or local authorities. Never put the fuel or heater in a location with direct
sunlight. Do not store the unit with fuel inside it. The fuel will go bad and cause the heater to malfunction.
REFUELING
Never ll the fuel tank in the living space, only ll the tank outdoors. Do not overll your heater and be sure the
heater is level. The rst time you light the heater, it should be done outdoors. This allows the oils, etc., used in
manufacturing heater to be burned off outside.
VENTILATION
Minimum 19ft² of fresh air ventilation is required for proper ventilation.
Operating method
1. Fill fuel tank with kerosene or No. 1 fuel oil. The unit is full when the needle of the ow-meter is aimed at “F”.
2. Always close the fuel cap after refueling.
3. Plug in the power supply.
4. Turn thermostat control knob to desired setting and push power switch to “ON” position. Power indicator
lamp will light and heater will start.
SHUTTING DOWN THE HEATER
Once the power supply switch is in the “OFF” position, the combustion will stop. The fan will continue to run for
an additional 3 to 4 minutes to cool the unit.
MAINTENANCE
USE ORIGINAL EQUIPMENT REPLACEMENT PARTS. Use of third party or other alternate components will void
warranty and may cause unsafe operating conditions.
FUEL TANK
Flush every 200 hours of operation or as needed. When cleaning, use gasoline or kerosene NOT water. Allow to
dry completely after cleaning. WARNING: REMOVE ALL GASOLINE BEFORE REFUELING!
FILTER
There are two different injection lters on the pump lter (or oil lter). Clean two times a year or as needed by
rinsing them with kerosene or gasoline.
Warning:
Do not refuel if the unit is overheated. Refueling the overheated unit could result in explosion.
Warning:
The major electrical components of this heater are protected by a safety fuse mounted to the PCB board.
If your heater fails to start, check this fuse rst and replace as necessary. You should also check your power
source to insure that proper voltage and frequency are being supplied to the heater.
Warning:
Unplugging the heater before the cooling fans have stopped may cause damage to the unit.
Warning:
Never service heater while it is plugged in or while hot!
Warning:
Do not leave the heater unattended while in operation.

-7-
FAN BLADES
Clean the fan blades 2 times a year or more as needed. There are
two fans on this unit, the ventilating fan located on the burner and the
cooling fan. Clean each fan blade with a wet cloth. Be careful not to
break or damage the blades. Allow the fan blades to completely dry
before assembling and using them.
NOZZLE
The nozzle should be cleaned or exchanged once a year as
needed. If contaminated fuel has be used, clean or replace the
nozzle immediately. To clean the nozzle, take it out of the burner,
disassemble then soak in kerosene or gasoline.
SPARK PLUG
Clean and regap the spark plug after every 600 hours of use or as
needed. Remove the spark plug from the burner and clean with an
iron brush. Electrode space should maintain the distance of 3.5 to
3.7mm.
PHOTOCELL
Clean photocell annually or as needed. Clean photocell lens with
cotton swab dipped in alcohol.
LONG TERM STORAGE
1. Open the fuel cap and remove the fuel.
2. Clean the inside of the tank with kerosene or gasoline. DO NOT
USE WATER! Water will cause rust.
3. Completely dry the tank.
Never store this unit with fuel in the tank. Long stored fuel causes
damage to this unit. Make sure storage place is free of dust and
corrosive fumes. Store unit in a well ventilated area. Store the heater
in the original box with the original packing material and keep user’s
manual with heater.
Warning:
Do not clean or repair this product while the fan is running or the unit is plugged in.
fan blade fan blade
Photocell

-8-
Troubleshooting
Possible Cause Corrective Action
E0
Power Supply Error
If plugged in while the switch is in the “ON” position. Unplug and turn the switch to “OFF”
position. Plug in and turn switch to “ON”
E1
Photocell (Flame Sensor) Error
Oil Shortage
Bad Photocell (Flame Sensor)
Incomplete Combustion
Contamination of Fuel Filter
Ignition Failure"
Check the fuel tank (Fill the fuel if needed)
Check and clean or replace Photocell
Using Designated Fuel
Clean or replace Fuel Filter
Check Wire Connection
Check Spark Plug For Normal Firing (clean
or replace if needed)
E2
Temperature sensor (Thermistor) Error
Bad Connection or mis-operation of Sensor Check Wire Connection
Replace Sensor"
E3
Anti-overheating Sensor (Thermostat) Error / Tip-over Switch Error
Unusual internal overheating
Product inclined or overturned
Restart After Cooling
Restart on at surface
LO Below 1 °F Normal
HI Over 99 °F Normal
OH It stops when the temperature reaches to 140 °F Restart After Cooling
CN Continuously operating without set-temperature Normal
Blinking Error during operation Check Error Code
Re-operating after reset

-9-
Key Part N° Description
1 892832 Fuel Gauge Assembly
2 81282 Fuel Hose
3 81283 *Fuel Filter
4 80733 Cooling Motor
5 892833 Cooling Fan Assembly
6 892821 Insulator
7 81284 *Nozzle
8 81285 Spark Plug
9 80734 *P.C.B
10 80736 Blower Assembly
11 83765 Electronic Pump
12 80738 Tip Over Switch
13 80739 Ignitor
14 81286 *Thermostor
15 80740 Thermostat
16 88270 Burner Gasket
17 80741 *Sub P.C.B
18 892846 Guard, Canada (not shown)
* Slightly changed or omitted
Repair Parts
In order to maintain warranty, components must be replaced
using original manufacturers parts purchased through your dealer
or directly from the appliance manufacturer. Use of third party
components will void the warranty.
11
12
14 13
10
17
1
4
5
6
7
8
2
9
15
16
3

-10-
LIMITEDWARRANTY

UnitedStatesStoveCompanywarrantsthisproduct,totheoriginalretailpurchaseronly,tobefreefrom
defectsinmaterialandworkmanshipforaperiodofone(1)yearfromthedateoftheinitialpurchaseas
evidencedonaninvoice,cancelledcheck,salesreceipt,etc.Intheeventofadefect,thisLimited
Warrantyshallbelimitedtotherepairorreplacementofparts,whichprovedefectiveundernormaluse
andservicewithinthelimitedwarrantyperiod,andwhichUnitedStatesStoveCompanydeemsatits
reasonablediscretion.THELIMITEDWARRANTYSETFORTHHEREINISTHESOLEWARRANTY
PROVIDEDTOPURCHASERANDISINLIEUOFALLOTHERWARRANTIESANDREPRESENTATIONS,
EXPRESSORIMPLIED.UNITEDSTATESSTOVECOMPANYMAKESNOREPRESENTATIONSOR
WARRANTIESWHATSOEVER,EXPRESSORIMPLIED,WITHRESPECTTOTHEPRODUCT,OTHERTHAN(i)
THELIMITEDWARRANTYABOVE,AND(ii)ANYIMPLIEDWARRANTIESIMPOSEDBYAPPLICABLELAW
WHICHCANNOTBEWAIVEDORDISCLAIMEDUNDERAPPLICABLELAW.ALLOTHERWARRANTIESOF
ANYKIND,INCLUDINGWITHOUTLIMITATIONIMPLIEDWARRANTIESOFMERCHANTABILITYAND
FITNESSFORAPARTICULARPURPOSE,AREHEREBYDISCLAIMEDANDEXCLUDEDTOTHEFULLEST
EXTENTNOTPROHIBITEDBYAPPLICABLELAW.ThisLimitedWarrantygivesthepurchaserspecificlegal
rights;apurchasermayhaveotherrightsdependinguponwhereheorsheresides.Somestatesdonot
allowtheexclusionorlimitationofspecial,incidentalorconsequentialdamages,orstatelawmayaffect
thedurationoflimitations,sotheaboveexclusionandlimitationsmaynotbeapplicable.

OTHERLIMITATIONS:UnitedStatesStoveCompanydisclaimsallotherwarrantiesforproductsthatare
purchasedfromsellersotherthanauthorizedretailersordistributors.Thisproductmustbeproperly
installed,maintainedandoperatedinaccordancewiththeinstructionsprovidedherein.Furthermore,
UnitedStatesStoveCompanyrequiresreasonableproofofthedateofpurchasefromanauthorized
retailerordistributor.ThisLimitedWarrantydoesnotcoveranyoperationalfailuresordifficultiesdue
tonormaluseandwearandtear,accident,abuse,misuse,alteration,misapplication,improper
installationorimpropermaintenanceorservicebyyouoranythirdparty.Failuretoperformnormaland
routinemaintenanceontheproduct,shippingdamage,damagerelatedtoanimals,anddamagedueto
weatherarenotcoveredunderthisLimitedWarranty.Inaddition,thisLimitedWarrantydoesnotcover
damagetothefinishontheproduct,suchasscratches,dents,discoloration,rustorotherweather
damage.Thiswarrantydoesnotapplytoproductspurchasedforrentaluse.UnitedStatesStove
Companyassumesnoresponsibilityforanydefectscausedbythirdparties.UnitedStatesStove
Companydoesnotauthorizeanypersonorcompanytoassumeforitanyotherobligationorliabilityin
connectionwiththesale,installation,use,removal,return,orreplacementofitsproducts,andnosuch
representationsarebindingonUnitedStatesStoveCompany.

CLAIMPROCEDURE:Alltransportationcostsforthereturnofthedamagedproductorpartswillbethe
responsibilityofthepurchaser.Uponreceiptoftheproduct,UnitedStatesStoveCompanywillexamine
itanddetermineiftheproductcontainsadefect.UnitedStatesStoveCompanywillrepairorreplace
andreturntheitem,freightpre‐paid.IfUnitedStatesStoveCompanyfindstheitemtobeinnormal
operatingcondition,ornotdefective,theitemwillbereturnedfreightcollect.Purchasershallspecify
themodelnumber(s)andserialnumber(s)ofanyproduct(s)whenmakinganyclaimswithUnitedStates
StoveCompany.Pleaseusethefollowingtoidentifyyourproduct:

Model#:____________________

Serial#:_____________________
