DR. Heater DR-910M User manual

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10,000W/240V GARAGE HEATER WITH CART
OWNER’S MANUAL
Model No.: DR-910M
10,000W 240V60Hz
IMPORTANT INSTRUCTIONS
READ & SAVE

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TABLE OF CONTENTS
Important Instructions……………………………………….3
Installation Instructions………………………. ……………5-7
Specifications and Wiring Diagram ……………………….8
Parts of the Heater……………………….…………..……...9
Operating Instructions……………………….………....…...10
Maintenance and Cleaning………………………………...11
Troubleshooting…………………………………………….. 12
Warranty……………………………….............……………..13

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IMPORTANT INSTRUCTIONS
PLEASE READ ALL INSTRUCTIONS BEFORE USING THIS
HEATER
NOTE: There may be a trace of smoke or odor when unit is first
operated. Don’t be alarmed. This indicates that a drop of oil
fell on the heating coil during the manufacturing process. It will
quickly evaporate and should not re-occur.
Make sure that the room in which the appliance is located is
well ventilated during this operation. It is normal for the
appliance to emit small cracking sounds when you turn it on
for the first time. Do not be alarmed.
WHEN USING ELECTRICAL APPLIANCES, BASIC
PRECAUTIONS SHOULD ALWAYS BE FOLLOWED TO REDUCE
RISK OF FIRE, ELECTRICAL SHOCK, AND INJURY TO
PERSONS OR PROPERTY, INCLUDING THE FOLLOWING:
1) Read all instructions before using this heater.
2) This heater is hot when in use. To avoid burns, do not let bare
skin touch hot surfaces. Keep combustible materials, such as
furniture, pillows, bedding, papers, clothes, and curtains at least 3
feet (0.9 m) from the front of the heater and keep such materials
away from the sides and rear.
3) Extreme caution is necessary when any heater is used by or
near children or disabled persons and whenever the heater is left
operating and unattended.
4) Always switch off the heater when not in use.
5) Do not operate any heater after the heater malfunctions or has
been dropped or damaged in any manner. Disconnect power at
service panel and have heater inspected by a certified/licensed
electrician before reusing.
6) Do not use outdoors.
7) To disconnect heater, turn off power to heater circuit at main
disconnect panel.
8) Keep at least 4.5 inches (0.12m) from the back wall.

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9) Do not insert or allow foreign objects to enter any ventilation or
exhaust opening as this may cause an electric shock or fire and
potentially damage the heater.
10) To prevent a possible fire, do not block air intakes or exhaust in
any manner.
11) A heater has hot and arcing or sparking parts inside. To reduce
the risk of fire, do not use in areas where gasoline, paint, or
flammable vapors and liquids are used or stored.
12) Use this heater only as described in this manual. Any other use
not recommended by the manufacturer may cause fire, electric
shock, or injury to persons.
13) This product must be installed by a certified/licensed electrician,
in accordance with applicable local codes.
14) For supply cables, use 6 AWG (13.3 mm2) copper wires.
SAVE THESE INSTRUCTIONS
WARNING –RISK OF FIRE, DO NOT USE AS A RESIDENTIAL
OR HOUSEHOLD HEATER.

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WARNING: All wiring must be installed by a certified/licensed
electrician. The heater must be grounded in accordance with
applicable national and local building codes.
WARNING: To reduce the risk of fire, do not store or use gasoline
or other flammable vapors and liquids in the vicinity of the heater.
All wiring procedures and connections should be in
accordance with applicable national and local codes.
NOTE: Compatible with a 240V Line Voltage Double Pole Wall
Thermostat. Must be installed by a certified/licensed electrician.
Before installation:
Disconnect the main supply connection.
Supply cables should be 6 AWG (13.3 mm2) copper wires.
The heater must be connected to an individual branch circuit
protected by a 60 Amp circuit breaker only.
Supply cables must be equipped with a dual pole circuit breaker
rating at least 240V 60A/pole as main cutoff switch of power
connection to the heater.
Wiring compartment for accommodating supply cables and pigtail
leads are adequate and measured free space of 2524.67 cm3.
Tools/ Materials Needed (Not Included):
·Regular Screwdriver Set
Unpacking Contents：
·Heater
·Owner's Manual
·Warranty Card
·Heater Handle
INSTALLATION INSTRUCTIONS

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INSTALLATION INSTRUCTIONS:
1. Do not install closer than 1 foot (or 0.3 m) to any adjacent
vertical surfaces or walls.
2. Keep at least 4.5 inches (0.12m) from the back wall (regardless
of whether the wall mount bracket is used).
3. Insert the hand hold and tighten the screws.
4. Run the electrical power supply cable in flexible conduit and
connect to the wiring compartment via the knock-out at the rear
of the heater.

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6. Make the connections properly with connectors which are
suitable for the conductor size, including ground wires. After
making the connections, arrange the pigtail leads of unit and
power supply wires in the wiring compartment.

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10,000W/240V GARAGE HEATER WITH CART
Model: DR-910M
Voltage: 240 V
Watts: 10,000 W
Frequency: 60 Hz
Recommended Heating Capacity: 1.25watts / ft³(0.03m³)
Thermostat Temperature Range: 37˚F~104˚F (3˚C~40˚C)
SPECIFICATIONS

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PARTS OF THE HEATER
A
E
B
C
F
D
G
I
A. Hand Hold
B. Upper Housing
C. Louver for air
direction
D. Lower Housing
E. Tilt Adjustable
Knob
F. Wheel
G. Control Panel
H. ON/OFF Switch
I. Thermostat
Adjustment Knob
H

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WARNING - The heater must be properly installed before it is
used.
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR
ARC FLASH:
Apply appropriate personal protective equipment (PPE)
and follow safe electrical work practices. See NFPA 70.
A circuit breaker must be installed and serviced only by
qualified electrical personnel.
Always use a properly rated voltage sensing device to
confirm power is off.
The switch on the heater is to start the Fan and Heater.
Use the circuit breaker as power ON/OFF for the
heater. The circuit breaker is to be installed by a
certified/licensed electrician and should be located in
line of sight from the heater location or should be
capable of being locked in open position. Follow the
operating instructions to reduce the risk of fire,
electric shock, injury, or death to persons.
Switch on the circuit breaker.
To turn off the heater, switch off the circuit breaker.
The circuit breaker serves as the power source for
the heater.
This heater includes a visual alarm to warn that parts of the
heater are getting excessively hot. If the alarm flashes,
immediately turn the heater OFF and inspect for any objects on
or adjacent to the heater that may cause high temperatures. DO
NOT OPERATE THE HEATER WITH THE ALARM FLASHING.
To reset the heater, switch the circuit breaker OFF. Then, wait
five to ten minutes for the heater to cool down before turning the
heater on again.
OPERATING INSTRUCTIONS

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No user maintenance on this heater should be undertaken except
regular cleaning as described below. All other servicing or
maintenance should be performed by qualified service personnel.
Before any cleaning, make sure that:
1. Power supply is disconnected at the source. Switch off the
circuit breaker.
2. Wait 60 minutes to ensure the heating element has cooled down.
Your heater is now ready for cleaning.
Regular Cleaning:
1. Do not spray chemicals or other cleaning liquids on the heater.
2. Interior dust can often be removed by using a vacuum cleaner
with a crevice tool attachment.
3. To clean enclosure, use a clean, soft, and lightly damp cloth to
gently wipe off dirt from the surface of the unit. Make sure the
heating element and the switches do not get wet. Allow the unit
to dry completely before use.
CAUTION: DO NOT ALLOW WATER TO RUN INTO THE
INTERIOR OF THE HEATER AS THIS COULD CREATE A FIRE
OR ELECTRIC SHOCK HAZARD, DAMAGING THE UNIT.
MAINTENANCE AND CLEANING
INSTRUCTIONS(separate page)

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If your heater fails to operate, please follow these procedures:
This heater is intended to be a cart-mounted heater. It has a
thermal cut-off protection. If the thermal cut-off protection trips,
switch off the power. Switch off the circuit breaker. The unit
should reset automatically after 10 minutes. If the thermal cut-off
protection trips again, consult a certified/licensed electrician to
determine the reason for overheating.
Problem
Probable Cause
Solution
Unit is not
heating.
Overheat protection has
temporarily deactivated the
heater.
Turn the heater OFF. Switch
off the circuit breaker. Wait
10 minutes before turning on
the heater.
Breaker/Fuse has been
tripped.
Check your electrical box to
confirm the breaker has not
been blown. This may occur if
the receptacle is shared with
other high consumption
appliances.
The heater is
producing a
burning
smell.
Check & ensure there are no
combustible materials within
0.9 meters (3 feet) surrounding
the heater.
Remove any combustible
items from the vicinity of the
heater.
A drop of oil fell on the heating
coil during the manufacturing
process. It will quickly
evaporate and should not
occur again.
Ensure room in which heater is
situated is well ventilated.
Ensure a minimum clearance
of 1ft (12 inches) from both
sides, and 4.5 inches from the
back.
Reposition the heater so there
is enough space between the
heater and any adjacent
surface/wall.
PLEASE DO NOT ATTEMPT TO OPEN OR REPAIR THE HEATER
YOURSELF. DOING SO COULD CAUSE DAMAGE TO THE
HEATER OR PERSONAL INJURY.
TROUBLESHOOTING

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How long is the warranty?
This heater comes with a ONE-YEAR LIMITED COMPONENT WARRANTY. If
your unit does not appear to be working properly, please contact our service
center by calling 1-800-317-1688. Prior to your call, we encourage you to visit our
service related website www.DrHeaterUSA.com for troubleshooting tips and
service instructions if needed.
Warranty Information
Register your product at our website:
Or visit DrHeaterUSA.com/register-your-
heater
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Dr. Heater USA
9293 Beatty Dr,
Sacramento, CA 95826
Tel: [phone]
EMAIL:[e-mail]
Dr Heater USA
@Dr Heater USA
Dr. Heater USA
Dr. Heater USA