Dimplex BLF74 User manual

Owner’s Manual
Model
BLF74
7212860100R01
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

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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 .......................... 7
Fireplace Installation ............................ 8
Site Selection ...................................... 8
Wiring ............................................ 9
For Bathroom Use ................................. 12
Voltage Selector Switch ............................. 12
Surface Mount Installation ........................... 13
Flush Mounted Installation - 2x8 Framing ................. 14
Front Glass Installation .............................. 14
Operation .................................... 15
Maintenance ................................. 18
Accessories .................................. 18
Warranty .................................... 19
Replacement Parts ............................ 21

3
Welcome & Congratulations
Thank you and congratulations for choosing to purchase an electric
replace from Dimplex, the world leader in electric replaces.
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.
Please record your model and serial numbers below for future
reference: model and serial numbers can be found on the Model and
Serial Number Label of your replace.
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
Please have your model number and product serial
number ready. (See above)
Serial Number Label Rating Label

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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 have
the unit inspected by a reputable
electrician before reusing.
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 remove
the plug from the outlet or 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
⑭ Do not modify the electric
replace. Use it only as described
in this manual. Any other use not
recommended by the manufactur-
er 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

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!NOTE: This equipment has been
tested and found to comply with
the limits for Class B digital device,
pursuant to part 15 of the FCC Rules.
These limits are designed to provide
reasonable protection against harmful
interference in a residential installation.
This equipment generates, uses and
can radiate radio frequency energy
and, if not installed and used in
accordance with the instructions, may
cause harmful interference to radio
or television reception, which can be
determined by turning the equipment
off and on, the user is encouraged to
try to correct the interference by one or
more of the following measures:
· Increase the separation between
the equipment and the receiver.
· Connect the equipment into an
outlet on a circuit different from that
to which the receiver is connected.
· Consult the dealer or an
experienced radio/TV technician for
help.
Operation is subject to the following
two conditions: (1) this device may not
cause interference and (2) this device
must accept any interference, including
interference that may cause undesired
operation of the device.
IMPORTANT INSTRUCTIONS

7
Quick Reference Guide
Figure 1
① The electrical information
regarding your electric replace can
be found on the rating label located
on the front of the unit, behind the
glass.
Before installation, please record your
replace's serial number below for
future reference.
② If you have any technical
questions or concerns regarding the
operation of your electric replace,
or require service contact customer
service.
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.]

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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)
• Unit requires a minimum of 3
wall studs in order to ensure a
secure installation
There are two possible mounting
methods:
• Surface mount (pg. 11);
• Flush mount (pg. 12).
!NOTE: If the desired replace
location is on the interior of an
exterior wall the unit should only
be surface mounted. If a 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
to persons.
WARNING: To reduce the risk
of re, do not store or use gaso-
Fireplace Installation
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
materials before installation.
3. Store the replace in a safe,
dry and dust free location until
Figure 2
Screws
Electrical Cover Bracket
Figure 3

9
Fireplace Installation
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
On/Off Switch is set to the Off
position (refer to Operation
section) and 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 black wire (L1)
from the unit to the live wire
from the power supply.
• Connect the blue wire (N) and
For 120V Installations
GROUND
LINE
120 V Power
Supply
(Breaker Panel)
NEUTRAL
L
CONTROL PCB
THERMAL
CUTOUT
LED CONTROL BOARD
LED LIGHTS
LED LIGHTS
LED CONTROL BOARD
CAPACITOR
FLAME MOTOR
HEATING ELEMENT
HEATING ELEMENT
BLOWER MOTOR
VOLTAGE SELECTOR SWITCH
COMM 240
120
L1
N
N
N
RL1
RL2
RL3
5
1
6
2
3
4
L1
2. For No Heat installations
leave L2 unconnected with
a wire connector on the end
1. Regular installation
attach N and L2 together
3. For installation with a
Heat Disconnect Switch
N
L2
See Options
Below
L2
N
Different Heat Control Options
N
L2 Wall On/Off Switch

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Fireplace Installation
the red wire (L2) from the unit
to the neutral wire from the
power supply.
!NOTE: The unit can also
be installed so that the heater is
disabled. To install the unit with
No Heat DO NOT connect the
red wire (L2) to the neutral wire.
Add a wire connector to the end
and leave it disconnected from
everything.
!NOTE: The unit can also be
installed using an external Heat
Disconnect Switch. This can be
installed by adding a single pole
single throw wall switch between
the red wire (L2) on the unit.
• 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.
• Ensure that the voltage selec-
tor switch is set at the correct
voltage. (See Installation -
Voltage Selector Switch)
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 black wire (L1)
from the unit to the L1 wire
from the power supply.
• Connect the red wire (L2)
from the unit to the L2 wire
from the power supply.
!NOTE: The unit can also
be installed so that the heater is
disabled. To install the unit with
No Heat DO NOT connect the
red wire (L2) to the neutral wire.
Add a wire connector to the end
and leave it disconnected from
everything.
!NOTE: The unit can also be
installed using an external Heat
Disconnect Switch. This can be
installed by adding a single pole
single throw wall switch between
the red wire (L2) on the unit.
• Connect the white wire (N)
from the unit to the neutral
wire from the power supply.