Dimplex BLF7451 User manual

Owner’s Manual
Model
BLF7451
7214000100R00
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
Wiring ....................................8
For Bathroom Use ..........................9
Surface Mount Installation ...................10
Flush Mounted Installation - 2x8 Framing. . . . . . . . . 11
Front Glass Installation .....................12
Operation ................................13
Maintenance .............................16
Warranty ................................17
Replacement Parts ........................19

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
persons, including the following:
① Read all instructions before
installing or using 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 during heater opera-
tion.
DANGER: High temperatures
may be generated under certain
abnormal conditions. Do not par-
tially or fully cover or obstruct the
front of this heater.
③Extreme caution is neces-
sary when any heater is used by
or near children or invalids and
whenever the unit is left operating
and unattended.
④Young children should be
supervised 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 supervi-
sion.
IMPORTANT INSTRUCTIONS
⑥Do not operate the unit after
it malfunctions. Disconnect power
at the service panel and contact
Dimplex Technical Service for ser-
vice 1-888-346-7539.
⑦ Do not use outdoors.
⑧Never locate replace where
it may fall into a bathtub or other
water container.
⑨ To disconnect the replace,
turn the controls off, then dis-
connect the circuit at the main
disconnect panel.
⑩ Do not locate the heater im-
mediately below a xed socket-
outlet.
⑪Do 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.
⑫ To prevent a possible fire, do
not block air intakes or exhaust in
any manner.
⑬ All electrical heaters have
hot and arcing or sparking parts
inside. Do not use in areas where
gasoline, paint, or ammable
liquids are used or stored.

5
SAVE THESE INSTRUCTIONS
⑭Use this heater only as
described in this manual. Any
other use not recommended by
the manufacturer may cause re,
electric shock or injury to persons.
⑮Do not burn wood or other
materials in the electric replace.
⑯ Do not strike the replace
glass.
⑰ Always use a certied electri-
cian should new circuits or outlets
be required.
⑱ Disconnect all power supply
before performing any cleaning,
maintenance or relocation of the
unit.
⑲When transporting or stor-
ing the unit and cord, keep in a
dry place, free from excessive
vibration and store so as to avoid
damage.
WARNING: Remote control
contains small batteries. Keep
away from children. If swallowed,
seek medical attention immedi-
ately.
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 compli-
ance could void user's authority to
operate 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.
[7.1 in.]
467 mm
[18.4 in.]
1883 mm [74.1 in.]
493 mm
[19.4 in.]
187 mm
[7.3 in.]
1844 mm [72.6 in.]

7
Site Selection
Review and consider all of the
following conditions before instal-
lation:
• Dimensions of the unit: 74.1 in.
(1883 mm) x 19.4 in. (494 mm)
• For surface installation, the unit
requires a minimum of 2 wall
studs in order to ensure secure
installation. For other installa-
tion methods, suitable framing
is required.
There are two possible mounting
methods:
• Surface mount (pg. 10);
• Flush mount (pg. 11).
!NOTE: If the desired replace
location is on the interior of an ex-
terior 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: A dedicated, properly
fused 15 Amp circuit is re-
quired, rated for the appropri-
ate voltage (120V, 240V).
WARNING: Construction and
electrical outlet wiring must
comply with local building
codes and other applicable
regulations to reduce the risk
of re, electric shock and injury
Fireplace Installation
to persons.
WARNING: To reduce the risk
of re, do not store or use gaso-
line or other ammable vapors or
liquids in the vicinity of the heater.
1. Select a location that is not
susceptible to moisture and
is away from drapes, furniture
and high trafc.
2. Unpack the replace, front
glass and hardware from the
box and remove all packaging
Figure 2
Screws
Electrical Cover Bracket
Figure 3

8 www.dimplex.com
Fireplace Installation
materials before installation.
3. Store the replace in a safe,
dry and dust free location until
you are ready to install the
replace.
Wiring
WARNING: 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
cover bracket from the back of
the replace by removing the
three retaining screws. (Figure 2)
2. Leaving a minimum of 3 in.
(7.6 cm) of slack, route the
power supply through a cable
clamp (not included) and the
hole in the electrical cover
bracket.
3. Remove the two covers off of
the unit at the front to access
the wire connections. (Figure 3)
For 120V Installations
Use two conductor, non-metallic
sheath cable with ground wire
(3 wires total) for the incoming
power supply.
CAUTION: Use the appropri-
ate wire to meet local and
national electrical codes for
rated power consumption.
• Connect the L1 wire from the
Wiring Diagram
AC/DC
ADAPTER
RELAY BOARD
SWITCH BOARD
DISPLAY / CONTROL BOARD
THERMISTOR
LED STRIPS
(RGB) - MEDIA
FLAME LED STRIPS (AMBER)
CUTOUT
THERMAL
FLICKER MOTOR
BLOWER MOTOR
LED STRIPS
(RGB) - FLAME
M
M
ELEMENTS
LED DRIVER
BOARDS

9
Fireplace Installation
unit to the live wire from the
power supply.
• Connect the N and H1 wires
from the unit to the neutral
wire from the power supply.
• Connect the L2 and H2 wires
together, with a wire connec-
tor and leave them discon-
nected from everything.
• Attach the grounding wire to
the cover with the provided
grounding screw. Place wire
in-between screw and lock
washer and tighten (Figure 4).
• Reposition the electrical cover
brackets over the wires and
connectors and attach to re-
place chassis using the screw
removed in step 1 and step 3.
For 240V Installations
Use three conductor, non-metallic
sheath cable with ground wire
(4 wires total) for the incoming
power supply on replace inserts.
CAUTION: Use the appropri-
ate wire to meet local and
national electrical codes for
rated power consumption.
• Connect the L1 wire from the
unit to the L1 wire from the
power supply.
• Connect the L2 wire from the
unit to the L2 wire from the
power supply.
• Connect the N wire from the
unit to the neutral wire from
the power supply.
• Connect the H1 and H2 wires
together, with a wire connec-
tor and leave them discon-
nected from everything.
• Attach the grounding wire to
the cover with the provided
grounding screw. Place wire
in-between screw and lock
washer and tighten (Figure 4).
• Reposition the electrical cover
brackets over the wires and
connectors and attach to re-
place chassis using the screw
removed in step 1 and step 3.
For Bathroom Use
If this unit is installed in a bath-
room it must be protected by a
GFI receptacle or circuit. If recep-
tacle is used it must be readily
accessible.
Figure 4
Hole for
Ground Screw

10 www.dimplex.com
Fireplace Installation
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 in-
stalled away from showers, tubs,
etc. Never locate replace where
it may fall into a bathtub or other
water container.
Surface Mount Installation
CAUTION: Two people will be
required for various steps of
this procedure.
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. Determine the mounting
location of the unit so that the
wall-mounting bracket can be
installed into 3 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.
2. Hold the wall mounting brack-
et, with the bubble level on
the top, on the wall so that the
bubble on the level is centered
between the two black lines.
3. Mark the 4 mounting screw
locations, on the wall, ensur-
ing that the wall bracket stays
level. (Figure 5)
4. In locations where the screws
are being installed only into
drywall, install the supplied
wall anchors before installing
the screw (predrill if required).
5. Secure the wall bracket to the
wall using the supplied 1½ in.
(3.8 cm) mounting screws and
Figure 5 Figure 6