Dimplex BLF3451 User manual

Owner’s Manual
Model
BLF3451
7213990100R01
IMPORTANT SAFETY INFORMATION: Always read this manual rst
before attempting to install or use this replace. For your safety, always
comply with all warnings and safety instructions contained in this manual
to prevent personal injury or property damage.
To view the full line of Dimplex products, please visit
www.dimplex.com

2 www.dimplex.com
Table of Contents
Always use a qualied technician or
service agency to repair this replace.
!NOTE: Procedures and tech-
niques that are considered important
enough to emphasize.
CAUTION: Procedures and tech-
niques which, if not carefully followed,
will result in damage to the equip-
ment.
WARNING: Procedures and
techniques which, if not carefully
followed, will expose the user to
the risk of re, serious injury, or
death.
Welcome & Congratulations ...................3
IMPORTANT INSTRUCTIONS ..................4
Quick Reference Guide ......................6
Fireplace Installation ........................7
Site Selection ...................................... 7
Grounding Instructions ............................... 7
Wiring ............................................ 8
Hardwire Installation ................................. 8
For Bathroom Use .................................. 9
Surface Mount Installation ........................... 10
Partial Recessed Installation - 2x4 Framing ...............11
Flush Mounted Installation - 2x8 Framing ............... 12
Front Glass Installation .............................. 13
Operation ................................15
Maintenance .............................18
Warranty ................................19
Replacement Parts ........................21

3
Welcome & Congratulations
Thank you and congratulations for purchasing an electric replace from
Dimplex. Please use our convenient online registration page to record
your model and serial numbers for future reference at
www.dimplex.com/register
NO NEED TO RETURN TO THE STORE
Questions with operation or assembly? Require Parts Information?
Product Under Manufacturer’s Warranty?
Contact us at: www.dimplex.com/customer_support
For Troubleshooting and Technical Support
OR Toll-Free 1-888-DIMPLEX (1-888-346-7539)
Monday to Friday 8:00 a.m. to 4:30 p.m. EST
In order to better serve you, please have your model and serial number
ready or register your product online before calling (See above)
Serial Number
Label Rating Label with
Model Number
Please carefully read and save these instructions.
CAUTION: Read all instructions and warnings carefully before
starting installation. Failure to follow these instructions may result in
a possible electric shock, re hazard and will void the warranty.

4 www.dimplex.com
When using electrical appliances,
basic precautions should always be
followed to reduce the risk of fire,
electric shock, and injury to per-
sons, including the following:
① Read all instructions before us-
ing this electric replace.
② This replace is hot when in use.
To avoid burns, do not let bare skin
touch hot surfaces. The trim around
the heater outlet becomes hot dur-
ing heater operation.
DANGER: High temperatures
may be generated under certain ab-
normal conditions. Do not partially
or fully cover or obstruct the front of
this heater.
③Extreme caution is necessary
when any heater is used by or near
children or invalids and whenever
the unit is left operating and unat-
tended.
④Young children should be su-
pervised to ensure that they do not
play with the appliance.
⑤ The appliance is not intended for
use by young children or inrmed
persons without supervision.
⑥Do not operate the unit after it
malfunctions. Disconnect power at
the service panel and have the unit
inspected by a reputable electrician
before reusing.
IMPORTANT INSTRUCTIONS
⑦ If the supply cord is damaged,
it must be replaced by the manu-
facturer, or its service agent, or a
qualied person in order to avoid a
hazard. Contact Dimplex Technical
Service for obtaining a replacement
cord at 1-888-346-7539.
⑧ Do not use outdoors.
⑨Never locate replace where
it may fall into a bathtub or other
water container.
⑩ To disconnect the replace, turn
the controls off, and turn off power
to heater circuit at main disconnect
panel.
⑪ Do not run the cord under car-
peting. Do not cover cord with throw
rugs, runners, or the like. Arrange
cord away from trafc area and
where it will not be tripped over.
⑫ Do not locate the heater immedi-
ately below a xed socket-outlet.
⑬Do not insert or allow foreign
objects to enter any ventilation or
exhaust opening as this may cause
an electric shock or re, or damage
to the heater.
⑭ To prevent a possible fire, do not
block air intakes or exhaust in any
manner.
⑮ All electrical heaters have hot
and arcing or sparking parts inside.
Do not use in areas where gaso-

5
SAVE THESE INSTRUCTIONS
line, paint, or ammable liquids are
used or stored.
⑯ Use this replace only as
described in this manual. Any
other use not recommended by the
manufacturer may cause re, elec-
tric shock or injury to persons.
⑰ Do not change the plug in any
way. Always plug heaters directly
into a wall outlet/receptacle. Never
use with an extension cord or
relocatable power tap (outlet/power
strip).
⑱Do not burn wood or other mate-
rials in the electric replace.
⑲ Do not strike the replace glass.
⑳ Always use a certied electrician
should new circuits or outlets be
required.
㉑ Always use properly grounded,
fused and polarized outlets.
㉒ Disconnect all power supply
before performing any cleaning,
maintenance or relocation of the
unit.
㉓When transporting or storing the
unit and cord, keep in a dry place,
free from excessive vibration and
store so as to avoid damage.
WARNING: Remote control con-
tains small batteries. Keep away
from children. If swallowed, seek
medical attention immediately.
WARNING: Do not install bat-
tery backwards, charge, put in re
or mix with used or other battery
types - may explode or leak caus-
ing injury.
!NOTE: Changes or modica-
tions not expressly approved by the
party responsible for compliance
could void user's authority to oper-
ate the equipment.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
NO USER-SERVICABLE PARTS INSIDE
IMPORTANT INSTRUCTIONS

6 www.dimplex.com
Quick Reference Guide
Figure 1
1. The electrical information regard-
ing your electric replace can be
found on the rating label located
on the front of the unit, behind the
glass.
Please use our convenient online
registration page to record your
model and serial numbers for future
reference at
www.dimplex.com/register
2. If you have any technical ques-
tions or concerns regarding the
operation of your electric re-
place, or require service contact
customer service at
1-888-346-7539.
3. For dimensions of your replace,
refer to Figure 1.
34.1 in.
(867 mm)
19.4 in.
(494 mm)
7.0 in.
(179 mm)
32.4 in.
(823 mm)
30.0 in.
(761 mm)
6.8 in.
(172 mm)
18.0 in.
(457 mm)
16.0 in.
(406 mm)
3.8 in.
(95 mm)

7
Site Selection
Review and consider all of the follow-
ing conditions before installation:
• Dimensions of the unit: 34.1 in.
(867 mm) x 19.4 in. (494 mm)
• For surface installation, the unit re-
quires a minimum of 2 wall studs in
order to ensure secure installation.
For other installation methods,
suitable framing is required.
There are three possible mounting
methods:
• Surface mount (pg. 10);
• Partial Recessed (pg. 11);
• Flush mount (pg. 12),
and any of these have the option of
being hard-wired or plugged directly
into the wall outlet.
!NOTE: If the desired replace
location is on an exterior wall the unit
should only be surface mounted. If an
in-wall or ush mount look is desired
build the interior wall out into the
room.
!NOTE 1: A 15 Amp, 120 Volt
circuit is required. A dedicated circuit
is preferred but not essential in all
cases. A dedicated circuit will be
required if, after installation, the
circuit breaker trips or fuse blows on
a regular basis when the heater is op-
erating. Additional appliances on the
same circuit may exceed the current
rating of the circuit breaker.
WARNING: Ensure the power cord
is not installed so that it is pinched
Fireplace Installation
or against a sharp edge and en-
sure that the power cord is stored
or secured to avoid tripping or
snagging to reduce the risk of re,
electric shock or injury to persons.
Construction and electrical outlet
wiring must comply with local
building codes and other applica-
ble regulations to reduce the risk
of re, electric shock and injury to
persons.
WARNING: To reduce the risk of
re, do not store or use gasoline or
other ammable vapors or liquids in
the vicinity of the heater.
1. Select a location that is not sus-
ceptible to moisture and is away
from drapes, furniture and high
trafc.
2. For ease of electrical hook up you
may wish to locate the replace
near an existing outlet (for plug-in
convenience) (refer to NOTE 1).
3. Remove replace, front glass
and hardware from the box and
remove all packaging materials
before installation.
4. Store the replace in a safe, dry
and dust free location until you
are ready to install the replace.
Grounding Instructions
This product must be grounded. If it
should malfunction or breakdown,
grounding provides a path of least re-
sistance for electric current to reduce

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Fireplace Installation
the risk of electric shock. This product
is equipped with a cord having an
equipment-grounding conductor and
a grounding plug. The plug must be
plugged into an appropriate outlet
that is properly installed and ground-
ed in accordance with all local codes
and ordinances.
DANGER: Improper connection of
the equipment-grounding conductor
can result in a risk of electric shock.
Check with a qualied electrician or
serviceman if you are in doubt as
to whether the product is properly
grounded. Do not modify the plug
provided with the product – if it will
not t the outlet, have a proper outlet
installed by a qualied electrician.
This product is for use on a nominal
120-volt circuit and has a grounding
plug that looks like the plug in Figure
1. Make sure that the product is con-
nected to an outlet having the same
conguration as the plug. No adapter
should be used with this product.
AC/DC ADAPTER
RELAY BOARD
SWITCH BOARD
DISPLAY / CONTROL BOARD
LINE
NEUTRAL
HTR
THERMISTOR
LED STRIPS (RGB) - MEDIA
FLAME LED STRIP (AMBER)
M
ELEMENT
ELEMENT
CUTOUT
THERMAL
M
FLICKER MOTOR
BLOWER MOTOR
LED STRIPS (RGB) - FLAME
Wiring
Hardwire Installation
The replace is provided with a three
prong plug installed for plug-in con-
venience. Hard wiring the replace is
also an option for any installation.
WARNING: Do not attempt to wire
your own new outlets or circuits. To
reduce the risk of re, electric shock
or injury to persons, always use a
licensed electrician.
WARNING: Ensure that the
circuit on which the replace is to
be installed has the power cut off
at the service panel until installa-
tion is complete.
1. Carefully remove the electrical
Figure 2

9
Figure 3
Screws
Electrical
Cord Bracket
Figure 4
Wire Access
Covers
Hardwire
Bracket
Fireplace Installation
cord bracket from the back of the
replace by removing the three
retaining screws. (Figure 3)
2. Remove the two wire access
covers off of the unit at the front
to access the wire connections.
(Figure 4)
3. Pull the wires and connectors out
of the back opening.
4. Unscrew the three wire connec-
tors inside the electrical box and
separate the wires.
5. Install the supplied hardwire
bracket (with the ½" wire hole)
onto the rebox. (Figure 3)
6. Leaving a minimum of 3 in. (7.6
cm) of slack, route the power
supply wires through the hole in
the electrical cover bracket and
secure with a wire clamp (not
supplied).
7. Connect the black wire (L) from
the unit to the live wire from the
power supply using one of the
wire connectors removed in step
4.
8. Connect the blue and white wires
(N) from the unit to the neutral
wire from the power supply using
the second wire connector from
step 4.
9. Connect the green wire (G) from
the unit to the ground wire from
the power supply using the third
wire connector from step 4.
10. Reposition the wire access covers
over the wires and connectors
and attach to replace chassis us-
ing the screws removed in step 2.
11. Refer to Front Glass Installa-
tion section for nal installation
procedures.

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Fireplace Installation
install an outlet nearby.
• Hard wire the replace. Follow the
hard wiring instructions on page 8.
WARNING: Do not attempt to wire
your own new outlets or circuits. To
reduce the risk of re, electric shock or
injury to persons, always use a licensed
electrician.
WARNING: Ensure that the
circuit on which the replace is to
be installed has the power cut off at
the service panel until installation is
complete.
2. Determine the mounting location
of the unit so that the wall mount-
ing bracket can be installed into 2
wall studs.
!NOTE: It is recommended that the
mounting bracket be installed 56 in.
(142 cm) off of the ground to maintain
an optimized viewing angle of the
ame.
3. Hold the wall mounting bracket,
For Bathroom Use
If this unit is installed in a bathroom it
must be protected by a GFI recep-
tacle or circuit. If receptacle is used it
must be readily accessible.
To prevent electrical shock this unit
is an electrical appliance that is NOT
watertight and must be installed as to
prevent water from entering unit. This
must be installed away from show-
ers, tubs, etc. Never locate replace
where it may fall into a bathtub or
other water container.
Surface Mount Installation
CAUTION: Two people may be
required for various steps of this
procedure.
1. Choose your method of supplying
power to the unit:
• Plug in to an existing outlet or
Figure 6
Figure 5
Wall Mounting
Bracket
Bottom Support
Bracket