Dimplex THWG XLF74 User manual

Owner’s Manual
Model
XLF50
XLF74
XLF100
7214410100R06
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
techniques that are considered
important enough to emphasize.
CAUTION: Procedures and
techniques which, if not carefully
followed, will result in damage to
the equipment.
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
Installation .................................... 7
For Bathroom Use ............................. 12
Final Assembly ............................... 13
Operation .................................... 15
Maintenance ................................. 20
Warranty .................................... 21
Technical Support ............................. 23

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)
Model and Serial
Number Label
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.

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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
operation.
DANGER: High temperatures
may be generated under certain
abnormal 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 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
supervision.
IMPORTANT INSTRUCTIONS
⑥Do not operate the unit after
it malfunctions. Disconnect power
at the service panel and contact
Dimplex Technical Service for
service 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
disconnect the circuit at the main
disconnect panel.
⑩ Do not locate the heater
immediately 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
electrician should new circuits be
required.
⑱ Disconnect all power supply
before performing any cleaning,
maintenance or relocation of the
unit.
⑲When 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
contains small batteries.
Keep away from children. If
swallowed, seek medical attention
immediately.
WARNING: Do not install
battery backwards, charge, put
in re or mix with used or other
battery types - may explode or
leak causing injury.
!NOTE: Changes or
modications not expressly
approved by the party responsible
for compliance 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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Quick Reference Guide
1. The electrical information
regarding your electric
replace can be found on the
rating label located on the top
of the unit.
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
questions or concerns
regarding the operation
of your electric replace,
or require service contact
customer service at
1-888-346-7539.
3. For dimensions of your
replace, refer to Figure 1.
Figure 1
16.49 in
419 mm
15.82 in.
402 mm
15.00 in.
381 mm
5.79 in.
147 mm
4.34 in.
110 mm
XLF50 50.31 in [1278 mm]
XLF74 74.31 in [1887 mm]
XLF100 100.31 in [2548 mm]
XLF50 51.41 in [1306 mm]
XLF74 75.41 in [1941 mm]
XLF100 101.41 in [2576 mm]

7
CAUTION: Ensure installation
does not allow replace to be in
direct contact with building vapor
barrier or insulation and meets all
local building code.
!
NOTE: A dedicated, properly
fused 15 Amp circuit is required,
rated for the appropriate voltage
(120V, 240V).
WARNING: Construction
and 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, electric shock or injury to
persons, always use a licensed
electrician.
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 susceptible to
moisture and is away from
drapes, furniture and high
trafc.
2. Unpack the replace and
hardware from the box.
Fireplace Installation
!NOTE: Leave the front
glass and partially reective
glass, safely, in the box until
the time you are ready to
install it.
3. Store the replace in a safe,
dry and dust free location until
you are ready to install the
replace.
Installation
CAUTION: Two people will be
required for various steps of
this procedure.
This design of this unit allows
three options for installation:
partial recess, ush mounted or
sub-surface mounted.
XLF50: 50 5/8" (128.6 cm)
2” x 6”
5 1/2" (14.0 cm)
16"
(40.6 cm)
XLF74: 74 5/8" (189.7 cm)
XLF100: 100 5/8" (255.7 cm)
2” x 4”
3 1/2" (9.0 cm)
Figure 2

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Fireplace Installation
CAUTION: Sub-surface
mounting should be limited
to ½ in. (10 mm) to ensure
adequate air ow of heated air
out of the rebox area.
1. Prepare a wall with a framed
opening of 16 in. (40.6 cm)
high,
• XLF50 - 50 ⅝ in. (128.7 cm)
• XLF74 - 74 ⅝ in. (189.7 cm)
• XLF100 - 100 ⅝ in. (255.7 cm)
wide, with a bottom sill that is
a minimum of 3.5 in. (9.0 cm)
deep (Figure 2). The sill can
be constructed to support the
front of the unit to allow the
power supply wires to easily
be run behind or ush with the
back of the unit and a pass
thru hole drilled for electrical
wire routing.
WARNING: The top of the
replace is to be installed a
minimum of 8" (20.4 cm) from the
ceiling.
!NOTE: It is recommended that
the bottom of the unit be mounted
between 30 in. (76.2 cm) and
40 in. (101.6 cm) from the ground
to maintain an optimized viewing
angle of the ame.
WARNING: Do not attempt
to wire your own new 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. The unit is provided with an
installed ¾ in. (2.0 cm) trim.
Depending on the installation,
this trim can be removed by
removing the securing screws
and the 4 trim pieces.
3. Ensuring a minimum of 18 in.
(46.7 cm) of slack, route the
supply power wire through a
cable clamp (not included) and
in the opening in the back of
the unit. (Figure 3)
Figure 3
Grounding
Screw
Cable Clamp

9
Fireplace Installation
4. Lift replace, from the bottom
and the handles located on the
back, and insert into opening to
the desired depth.
5. Using a bubble level (supplied)
ensure that the replace is level
within the framing. Adjust as
required.
6. Drive four supplied mounting
screws through the four
mounting holes located on the
inside surface of the replace
chassis, into wall studs
(Figure 4).
Figure 4
Mounting Holes
120V Installation - Direct Wire
!NOTE: The unit is designed
to be hardwired to a power
source and should not have
a cord installed to allow the
unit to be plugged into a wall
receptacle.
Use two conductor, non-metallic
sheath cable with ground wire
(3 wires total) for the incoming
power supply.
CAUTION: Use the
appropriate wire to meet local
and national electrical codes
for rated power consumption.
• Cut the wire to an appropriate
length.
• Connect the L wire from the
unit to the live wire from the
power supply with a wire nut.
Flame
Panel

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Fireplace Installation
• Connect the N wire from the
unit to the neutral wire from the
power supply with a wire nut.
• Connect the G wire from the
unit to the ground wire from
the power supply with a wire
nut or attach the grounding
wire to the cover with the
provided grounding screw, by
placing the wire in-between
screw and lock washer and
tighten (Figure 3).
• Ensure that all wires are
secure and do not protrude
past the ame panel, so as
not to be visible after nal
assembly.
• Continue to the nal assembly
instructions.
120V Installation - Wall Switch
!NOTE: Use a single pole,
single throw (On/Off) wall switch
that is rated for a minimum of
15 amps.
!NOTE: The unit is designed to
be hardwired to a power source
and should not have a cord
installed to allow the unit to be
plugged into a wall receptacle.
Use two conductor, non-metallic
sheath cable with ground wire
(3 wires total) for the incoming
power supply.
CAUTION: Use the
appropriate wire to meet local
and national electrical codes
for rated power consumption.
• Cut the wire to an appropriate
length.
FIREPLACE JUNCTION BOX
120 V
POWER
SUPPLY
(BREAKER
PANEL)
WHITE - N
BLACK – L1
WHITE – N
BLACK – L1
GROUND - G
WALL
SWITCH
GROUND - G
Figure 5

11
Fireplace Installation
Figure 6
Partially
Reective Glass
Retaining
Bracket
Media Tray
• Connect the L wire from the
unit to the live wire from the
main power through the
wall switch, ensuring all live
connections are connected
with a wire nut.
• Connect the N wire from the
unit to the neutral wire from
the power supply with a wire
nut.
• Connect the G wire from the
unit to the ground wire from
the power supply with a wire
nut or attach the grounding
wire to the cover with the
provided grounding screw, by
placing the wire in-between
screw and lock washer and
tighten (Figure 3).
Glass
Openings
• Ensure that all wires are
secure and do not protrude
past the ame panel, so as
not to be visible after nal
assembly.
• Continue to the nal assembly
instructions.
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
appropriate 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 with a wire nut.

12 www.dimplex.com
Fireplace Installation
• Connect the L2 wire from the
unit to the L2 wire from the
power supply with a wire nut.
• Connect the N wire from the
unit to the neutral wire from the
power supply.
• Connect the G wire from the
unit to the ground wire from the
power supply with a wire nut
or attach the grounding wire
to the cover with the provided
grounding screw, by placing
the wire in-between screw
and lock washer and tighten
(Figure 3).
• Ensure that all wires are
secure and do not protrude
past the ame panel, so as
not to be visible after nal
assembly.
• Continue to the nal assembly
instructions.
For Bathroom Use
If this unit is installed in a bathroom
it must be protected by a GFI
receptacle 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 showers, tubs,
etc. Never locate replace where
it may fall into a bathtub or other
water container.

13
Final Assembly
1. Locate and remove the 12
screws securing the partially
reflective glass bracket to
the unit, along the top of the
opening, and set bracket and
screws aside.
2. Remove the provided suction
cup from the inside cavity of the
unit (only for XLF74 and XLF100
units).
3. Before installation ensure that
the front glass and the partially
reective glass are clean.
Particles can be removed by
dusting lightly with a clean dry
cloth. To remove ngerprints
or other marks, the glass
can be cleaned with a damp
cloth. Ensure that the glass
has completely dried before
installation.
4. Carefully secure the suction cup
to the partially reflective glass,
reflective side out, and place
into the openings on either side
of the unit.
5. Tip the glass into the unit and
using the removed screws
secure the glass into the unit
with the provided bracket
(Figure 6). Remove the
suction cup.
6. Evenly space the large media
in the media tray along the back
of the media tray (for optimum
media effect), then carefully
pour and evenly distribute
the smaller media into the Media
Tray.
7. Carefully place the front glass
into the lip located at the bottom
of the opening of the firebox.
8. Tip the front glass into the unit
and secure using the provided
screws and Allen key. (Figure 7).
!
NOTE: Ensure that the suction
cup and Allen key are kept for
any future maintenance
or service.
Fireplace Installation

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CUTOUTS
THERMAL
CUTOUTS
THERMAL
M
M
FLICKER MOTOR
FLAME LED ASSEMBLY
MEDIA LED ASSEMBLY
MEDIA LED ASSEMBLY
POWER ADAPTER
FAN FAN
CERAMIC ELEMENT
FLICKER MOTOR
FLAME LED ASSEMBLY
MEDIA LED ASSEMBLY
MEDIA LED ASSEMBLY
POWER ADAPTER
FAN FAN
CERAMIC ELEMENT
POWER ADAPTER
RELAY BOARD
MAIN CONTROL
BOARD
MAIN CONTROL
BOARD
THERMISTOR
THERMISTOR
XLF50
XLF74, XLF100
Figure 7
Fireplace Installation
Figure 8

15
Operation
Remote Operation
The replace is supplied with an
IR multi-function remote control.
!NOTE: To operate correctly,
the remote control must be
pointed towards the front of the
unit.
Controls
The unit can be controlled by
either the manual controls which
are located on the upper right of
the replace or the remote
(Figure 9 and 10).
A. Standby
Turns the unit On and Off.
Activated by pressing the
Standby button on the remote
or the unit.
• The unit will turn On with the
same functions that it was set
to when it was turned Off and
the intake temperature will be
indicated on the Display.
!NOTE: When any button is
pressed on the unit the intake
temperature will be displayed on
the Display for 7 seconds.
General Operation
WARNING: This electric
firebox must be properly installed
before it is used.
This firebox operates with
Comfort$averTM technology,
which automatically adjusts the
fan speed and heater wattage to
safely and precisely match the
requirements of the room based
on the thermostat setting. The
heater operates such that once
the room reaches the set point, the
fan and heater will continuously
run at a low level, to maintain
the desired room temperature.
If the temperature in the room
rises significantly, i.e. sun coming
through a window or a central
furnace turns on, the heater will
turn off and periodically turn back
on to circulate the air around the
unit, until the room temperature
drops and requires the heater to
be constantly on again.
!NOTE: The unit is designed so
that the fan will run continuously
while the heater is on.
!NOTE: The element retains
heat after shutdown. When the
heat is turned Off, there is a
2-minute cool down period before
the fan shuts off completely.

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Figure 9
AC D E H
Display
Figure 10
A
D
BC
E
G
J
F
IHI
Operation
B. Flame Effects
Turns the Flame Effect On
and Off.
Activated by pressing the
button on the remote.
C. Heat ON/OFF
Turns the heater On and Off.
Activated by pressing the
button on the remote or the
unit.
• Indicated by the icon and the
setpoint temperature will ash
on the display, then the intake
temperature will be displayed
before turning off.
!
NOTE: After the heater is
switched off, there is a 2 minute
fan delay, where the fan will
continue running before turning
off.
!NOTE: The unit can be
operated in Heat Only Mode.
When the unit is only running
with the heater, the icon will
continuously be displayed on the
Display.
!NOTE: The heater may emit
a slight, harmless odor when
rst used. This odor is a normal
condition caused by initial heating
of internal heater parts and will not
occur again.
D. Temperature Down
Decreases the temperature
setting.
Adjusted by repeatedly
pressing the corresponding
button on the remote.
CJ

17
F. Eco Operation
Runs the heater in a reduced
wattage range when activated.
Adjusted by pressing the
corresponding button on the
remote when the heater is on.
• Indicated by the Display and a
reduced fan speed.
G. Heat Boost
Turns the Heater Boost On and
Off. Runs the unit at the full rated
wattage.
Activated and adjusted by
repeatedly pressing the
corresponding button on
the remote.
• Indicated by the heater running
at full heat, for a user set
amount of time, to quickly heat
up a cold room/space. The
Heat Boost can be set for a
maximum of 20 minutes, in
5 minute increments.
Disable Heat
If desired, depending on the
season, the heater on the unit can
be disabled. The function of the
remaining controls will continue
to function as outlined in this
manual.
• Indicated by setpoint
temperature on the Display
decreasing and the speed of
the fan decreasing to reduce
the amount of heat being
projected into the room.
E. Temperature Up
Increases the temperature
setting.
Adjusted by repeatedly
pressing the corresponding
button on the remote.*
• Indicated by the setpoint on
the Display increasing and the
speed of the fan increasing to
increase the amount of heat
being projected into the room.
* The rst time the button
is pressed the current
temperature set point will be
displayed for 2 seconds.
** The temperature can be
adjusted from 5 °C to 37 °C
(41 °F to 99 °F).
!NOTE: Holding the and
the buttons down for two
seconds, on the unit, will change
the temperature scale from
°C to °F, or vice versa.
Operation

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I. Brightness
Changes the Brightness of the
lights in the unit.
Adjusted by repeatedly pressing
the corresponding button on the
remote or the unit.
• Indicated by the second digit
on the Display changing to
show: "H" (high), and "L" (low).
J. Sleep Timer
The Sleep Timer can be set to
automatically shut off the replace
after a preset time (from 30
minutes to 8 hours).
To set the timer press the
timer button on the remote,
repeatedly, until the desired
time is displayed.
• The Display will display the
different times as it is adjusted.
Once the timer has begun,
pressing the button will
display the time remaining
before the unit turns Off.
!NOTE: The Sleep Timer can
be cancelled at any time by
pressing the button repeatedly
until the sleep timer displays
nothing.
Pressing the and buttons
on the unit at the same time and
holding for 2 seconds will disable
and enable the heater.
!NOTE: When the heater has
been disabled and any of the heat
related functions are used, the
Display will indicate "---".
H. Color Themes
Different presets of lighting color
combinations are available in
the unit.
Changed by repeatedly
pressing the corresponding
button on the remote or the
unit.
• Cycles through the different
preset light settings of the
unit, this includes different
combinations of colors of the
ame base and media lighting.
!NOTE: Two of the themes in
the cycle are a prism where the
unit cycles through a variety of
colors. Pressing the stops
the cycling and holds the unit on
the preferred color, indicated by
a solid circle. When the unit is
on prism, and is cycling through
the colors, a rotating circle will be
displayed.
Operation

19
Operation
Resetting the Temperature
Cutoff Switch
Should the heater overheat, an
automatic cut out will turn the
whole unit off and it will not come
back on without being reset. If the
button on the unit is pressed,
Er2 will be displayed on the unit.
It can be reset by turning the unit
off at the main disconnect panel
and waiting 5 minutes before
turning the unit back on.
CAUTION: If you need to
continuously reset the heater, turn
the unit off at the main disconnect
panel and call technical support at
1-888-346-7539.
Remote Control Battery
Replacement
To replace the Battery:
1. Slide battery cover open on
the remote control.
2. Correctly install one 3 Volt
(CR2032 [longer life] or
CR2025) Battery in the battery
holder.
3. Close the battery cover.
Battery must be recycled
or disposed of properly.
Check with your Local
Authority or Retailer for recycling
advice in your area

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Maintenance
 WARNING: Disconnect power
and allow heater to cool before
attempting any maintenance or
cleaning to reduce the risk of
re, electric shock or damage
to persons.
!NOTE: The replace
should not be operated with
an accumulation of dust or dirt
on or in the unit, as this can
cause a build up of heat and
eventual damage. For this reason
the heater must be inspected
regularly, depending upon
conditions and at a minimum
yearly intervals.
Partially Reective Glass
Cleaning
The partially reective glass is
cleaned in the factory during
the assembly operation. During
shipment, installation, handling,
etc., the partially reective glass
may collect dust particles; these
can be removed by dusting lightly
with a clean dry cloth.
To remove ngerprints or other
marks, the partially reective
glass can be cleaned with a damp
cloth. The partially reective glass
should be completely dried with
a lint free cloth to prevent water
spots. To prevent scratching, do
not use abrasive cleaners.
Fireplace Surface Cleaning
Use only a damp cloth to clean
painted surfaces of the replace.
Do not use abrasive cleaners.
Servicing
Except for installation and
cleaning described in this
manual, an authorized service
representative should perform
any other servicing.