DR. Heater DR-966 User manual

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WALL / CEILING MOUNT HEATER
OWNER’S MANUAL
Model No.: DR-966
6000W 240V 60HZ
IMPORTANT INSTRUCTIONS
READ & SAVE

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TABLE OF CONTENTS
Important Instructions 3
Specifications and Wiring Diagram 5
Parts of the heater   6
Installing Instructions   7-9
Operating Instructions   10-11
Maintenance and Cleaning 12
Troubleshooting 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’ (0 9 m) from the front of the heater
and keep them away from the sides and rear
3) Extreme caution is necessary when any heater is used by or near children
or invalids 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, has been
dropped or damaged in any manner Disconnect power at service panel and
have heater inspected by a reputable electrician before reusing
6) Do not use outdoors
7) To disconnect heater, turn off power to heater circuit at main disconnect
panel
8) Do not install less than 8 feet (2 4m) high from the floor and closer than 1
foot (0 3m) to any adjacent vertical surfaces or walls Keep at least 4 5 inches
(11 5cm) from the back wall (with or without using the wall hanging mounting
bracket)
9) Do not insert or allow foreign objects to enter any ventilation or exhaust
opening as this may cause an electric shock or fire, or damage the heater
10) To prevent a possible fire, do not block air intakes or exhaust in any
manner

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11) A heater has hot and arcing or sparking parts inside To reduce the risk of
fire, Do not use it 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 electrician, in accordance
with local codes
14) For supply cables, use 10 AWG (5 3 mm2) copper wires
15) 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, and
wait five to ten minutes for the unit to cool down before turning the heater on
CAUTION – High temperature, risk of fire, keep electrical cords, drapery,
furnishings, and other combustibles at least 3 feet (0 9 m) from the front of the
heater and away from the side and rear ″
SAVE THESE INSTRUCTIONS

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Wall / CEILING Mount Heater
Model : DR-966
Volt: 240 V
Watts: 6000 W
Frequency: 60 Hz
BTU/h: 20472
Recommended Heating Capacity: 1 25 watts / ft3 (0 03m3)
Wiring diagram:
SPECIFICATIONS

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A Upper Enclosure
B Tilt adjustable knob
C Front Exhaust Grill
D Louver for air direction
E Control panel
F Power Indicator
G Alarm LED
H Rocker Switch (High/Low select)
I Temperature Setting Knob
PARTS OF THE HEATER

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WARNING: All wiring must be installed by a certified electrician
according to the electrical safety
The ceiling heater must be grounded in accordance with all national
and local building codes
All Wiring procedures and connections shall be in accordance
with the national and local codes having jurisdiction
Before installation:
Disconnect the main supply connection
Supply cables shall be 10 AWG (5 3 mm
2
) copper wires
The heater must be connected to individual branch circuit protected
by 35 Amp circuit breaker only
Supply cables must be equipped with a dual pole circuit breaker
rating at least 240V 35A/pole as main cutoff switch of power
connection to the heater
CAUTION : High temperature, risk of fire, keep electrical cords,
drapery, furnishings, and other combustibles at least 3 feet (0 9 m)
from the front of the heater and away from the side and rear
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
INSTALLATION INSTRUCTION:
1 Keep the unit at least 8 feet (2 4m) away from the floor This
minimum distance must be maintained
2 Do not install closer than1 foot (or 0 3 m) to any adjacent vertical
surfaces or walls
3 Keep at least 4 5 inches (11 5cm) from the back wall (with or
without using the wall hanging mounting bracket)
4 Mark the drill-hole positions in the wall or ceiling for the mounting
bracket
INSTALL
ING
INSTRUCT
IONS

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5 Drill the required holes with diameter fit for the anchor provided
for positioning the mounting bracket
6 Insert the anchors
7 Attach the mounting bracket to the wall or ceiling and secure
with mounting screws
WALL MOUNT CEILING MOUNT
8 Hook the unit to the mounting bracket and let the unit hang from
the mounting bracket
9 Insert the screw through the mounting bracket and the heater
handle, tighten the nut

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10 Loosen the screw to remove the wiring compartment/connection
cover in the rear of the heater
11 Run the electrical power supply cable in flexible conduit and
connect to the wiring compartment via the knock-out at back side
of the unit
12 Make the connections properly with connectors which are
suitable for the conductor size, in cluding grounding wirings And
after making the connections, arrange the pigtail leads of unit and
power supply wires in the wiring compartment
13 Replace the wiring compartment/connection cover and lock in
place with the screw

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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 70E
 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 Select switch on the heater is only for function
selection Use circuit breaker as power ON/OFF
device The circuit breaker is to be installed by
certified electrican and shall be located in line of sight
from the heater location or shall be capable of being
locked in open position Follow the operating
instruction to reduce the risk of fire, electric shock,
injury or death to persons
 Switch on the circuit breaker to turn on the heater
Then turn the thermostat to the farthest clockwise position The
fan should start and the unit begins heating the room, and lamp
is light After the room reaches comfort level, turn the
thermostat counterclockwise until the heater shuts off The
heater will automatically cycle around this preset temperature
To increase the temperature, turn the thermostat knob
clockwise To lower the temperature, turn the thermostat
counterclockwise
 Press the switch to High or Low position for heat selection
OPERATING INSTRUCTIONS

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HIGH : 6000W
LOW : 3000W
 Select a thermostat setting
Ambient temperature is regulated by adjusting the thermostat to a
desired position Allow the unit to operate and warm up the room
When the desired temperature is reached, turn the control knob
counterclockwise until the heater turns off This is your ideal
setting The heater will start automatically when the room
temperature drops below this set point, and will turn off when the
set point is reached
 To turn off the heater, switch off the circuit breaker
The circuit breaker serves as the power
disconnection means
 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, and wait five
to ten minutes for the unit to cool down before turning the heater
on
There is no user maintenance part except regular cleaning as
following description All other servicing or maintenance should be
performed by qualified service personnel
Before any cleaning, make sure that:
1 Disconnect power supply at source Switch off the circuit
breaker
2 Wait for 60 minutes to ensure the heating element has cool down,
and your heater is now
ready for cleaning

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There is no user maintenance part except regular cleaning as
following description All other servicing or maintenance should be
performed by qualified service personnel
Before any cleaning, make sure that:
1 Disconnect power supply at source Switch off the circuit
breaker
2 Wait for 60 minutes to ensure the heating element has cool
down, and your heater is now ready for cleaning
Regular Cleaning:
1 Do not use cleaning liquid or other chemicals to spray on the
unit
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 the dirt from the surface of the unit Be sure not
to wet the heating element and the switches Allow the unit to
dry completely before using it
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
MAINTENCE
AND
CLEANING

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If your heater fails to operate, please follow these procedures:
This heater is intended to be a ceiling-mounted heater It has a
thermal cut-off protection If the thermal cut-off protection trips, then,
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 electrician to determine the
reason for overheating
Problem Probable Cause Solution
Overheat protection has
temporarily deactivated the
heater
Turn the heater OFF;
Switch off
the circuit breaker
Wait 10
minutes before turning on the
heater
Room temperature has been
warmed up to thermostat
setting
To increase the room temperature,
adjust thermostat control knob to a
higher setting
Unit is
not
heating
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 between other
high consumption appliances
Check & ensure there are no
combustible materials within
0 9 meters (3 feet) surrounding
the heater
Remove any combustible items
from 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
The
heater is
producing
a burning
smell
Ensure a minimum clearance
of 36 inches (90 cm) from
both sides and rear of heater
to adjacent walls
Reposition the heater so there is
enough space around the heater to
the adjacent walls
PLEASE DO NOT ATTEMPT TO OPEN OR REPAIR THE HEATER
YOURSELF. DOING SO COULD CAUSE DAMAGE OR PERSONAL
INJURY.
TROUBLESHOOTING