Dimplex Optimyst DFI400LH User manual

Owner’s Manual
Model
DFI400LH (6909050141)
DFI400RH (6909050142)
DFI600LH (6909050161)
7212780100R05
IMPORTANT SAFETY INFORMATION: Always read this manual
rst before attempting to install or use the Optimyst® cassette. 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 cassette.
!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 SAFETY INSTRUCTIONS ..........4
Installation..................................6
Assembly...................................9
Operation..................................11
Maintenance...............................13
Warranty .................................15
Replacement Parts ..........................17

3
Welcome & Congratulations
Thank you and congratulations for choosing to purchase an Optimyst®
cassette 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 cassette.
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)
Model Number
Serial Number

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IMPORTANT SAFETY INSTRUCTIONS
THIS UNIT IS FOR HOUSEHOLD /
RESIDENTAL USE ONLY.
THE ELECTRICAL RATING FOR
THESE MODELS IS
120VAC, 60 HZ, 12 AMP.
When using an electrical furnishing,
basic precautions should always be
followed, including the following:
Read all instructions before using
(this furnishing).
DANGER: To reduce the risk
of electric shock always unplug
this furnishing from the electri-
cal outlet before cleaning.
WARNING: To reduce the risk
of burns, re, electric shock, or
injury to persons:
① Unplug from outlet before putting
on or taking off parts.
② Close supervision is necessary
when this furnishing is used by, or
near children, invalids, or disabled
persons.
③ Use this furnishing only for its
intended use as described in these
instructions. Do not use attach-
ments not recommended by the
manufacturer.
④ Never operate this furnishing if it
has a damaged cord or plug, if it is
not working properly, if it has been
dropped or damaged, or dropped
into water. Contact Dimplex Techni-
cal Service at 1-888-346-7539 for
replacement parts.
⑤ Keep the cord away from heated
surfaces.
⑥ Never operate the furnishing with
the air openings blocked. Keep the
air openings free of lint, hair, and
the like.
⑦ Never drop or insert any object
into any opening.
⑧ Do not use outdoors.
⑨ Do not operate where aerosol
(spray) products are being used
or where oxygen is being adminis-
tered.
⑩ To disconnect, turn all controls to
the off position, then remove plug
from outlet.
WARNING: Risk of Electric
Shock – Connect this furnishing
to a properly grounded outlet
only. See Grounding Instruc-
tions.
⑪ This electrical appliance has hot
and arcing or sparking parts inside.
Do not use in areas where gaso-
line, paint, or ammable liquids are
used or stored.
⑫ Do not modify the unit. Use it

5
SAVE THESE INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
only as described in this manual.
Any other use not recommended by
the manufacturer may cause re,
electric shock or injury to persons.
⑬ To reduce the risk of electric
shock, this appliance has a three
pronged plug. This plug will t in a
grounded outlet only one way. If the
plug does not t, contact a quali-
ed electrician to install the proper
outlet. Do not change the plug in
any way. Always plug this appliance
directly into a wall outlet/receptacle.
Never use with an extension cord
or relocatable power tap (outlet/
power strip).
⑭ Keep away from curtains, drap-
eries and similar materials.
⑮ Always use a certied electrician
should new circuits or outlets be
required.
⑯ Always use properly grounded,
fused and polarized outlets.
⑰ When transporting or storing the
unit and cord, keep in a dry place,
free from excessive vibration and
store so as to avoid damage.
⑱ This furnishing has not been
evaluated for ammability or ciga-
rette ignition resistance.
⑲ Do not submerse.
⑳ Light bulb requirement: 45W,
12VAC halogen bulbs type MR 16.
Contact Dimplex Technical Service
at 1-888-346-7539 for replacement
bulbs.
㉑ The electric fireplace shall be
installed in an enclosure no smaller
than that indicated. (See Figure 2)
CAUTION: The receptacle
cord is intended for use only with
the Dimplex heater 6909070159,
120VAC, 60Hz., 1000W.
!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.
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.

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Installation
WARNING: Ensure the power
cord is not installed so that it is
pinched or against a sharp edge
and ensure 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.
Grounding Instructions
This product must be grounded.
If it should malfunction or break-
down, grounding provides a path
of least resistance for electric
current to reduce 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 appropri-
ate outlet that is properly installed
and grounded in accordance with
all local codes and ordinances.
DANGER: Improper connec-
tion 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 connected to
an outlet having the same con-
guration as the plug. No adapter
should be used with this product.
CAUTION: Risk of Electric
Shock. This product has two
cords. Unplug both cords before
moving or servicing this furnishing.
!NOTE: A 15 Amp, 120 Volt cir-
cuit 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
cassette is operating. Additional
appliances on the same circuit
may exceed the current rating of
the circuit breaker.
Mantel Installation
Install the replace into the
mantel (refer to mantel assembly
instructions).
Figure 1

7
FRONT
üüü
(30.0 mm)
1.2 in.
(30.0 mm)
3.5 in.
(90.0 mm)
3.1 in.
(80.0 mm)
4.8 in.
(122.0 mm)
5.4 in.
(137.0 mm)
Installation
Figure 2
New Construction
1. Mark the desired location on
the oor and store the replace
in a safe, dry and dust free
location.
2. Use studs to frame an enclo-
sure with the following mini-
mum internal/opening dimen-
sions (Figure 2).
!NOTE: An air inlet is required
for optimum mist production, see
Figure 2 for minimum dimen-
sions.
!NOTE: For optimal perfor-
mance, the following minimum
clearances between the instal-
lation surface and any surface
above should be maintained:
• Cassette Only: 12 in. (305 mm)
• Cassette with Dimplex heater:
19 in. (483 mm)
Figure 3
3. Secure unit through the two
holes in the bottom of the unit
into supports to prevent the
unit from hanging from the top
ange, see gure 3 for dimen-
sions.
4. The unit is equipped with a
power supply plug and a fused
receptacle (Figure 4), the plug
should be plugged directly into
a 15 A, 120 V outlet.
CAUTION: During operation
8.5 in.
(216mm)
6.7 in.
(170mm)
Air Inlet
DFI400: 100cm2
DFI600: 150cm2
Supports: 0.75 in (19 mm) high
Exit for Cord
DFI400: 15.75 in. (400mm)
DFI600: 22.05 in. (560mm)
Installation
Surface

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ensure that the receptacle cord is
positioned so that the face is per-
pendicular to the oor as in Figure
4.
CAUTION: For continued pro-
tection against risk of re, replace
only with same type and rating of
fuse, 10 amp fuse maximum.
5. The receptacle is intended for
plugging in a Dimplex heater
(supplied with the mantel),
which will allow the heater to
be controlled with the provided
remote. (Figure 4)
CAUTION: The receptacle
cord is intended for use only with
the Dimplex heater 6909070159.
If this receptacle is used with any
other product, Dimplex will not be
liable for any damage or issues
that may arise.
Installation
15A 120V
Plug
10A 120V
Receptacle
Figure 4

9
Transducer
Rock
Media
Removable Rell
Container
Light Bulbs
Assembly
Figure 5
1. Carefully unpack all of the
components from the box.
(Figure 5)
2. Remove top cover by turning
the retaining tabs on both ends
of the water reservoir. (Figure
6)
3. Install the light bulbs by
aligning the pins on the bulbs
and the xture and pressing
down until they are fully
inserted. (Figure 7)
4. Install the transducer so that
it is sitting level in the circular
holding area in the reservoir.
5. Orient transducer wire so that
it does not sit directly above
the emitter and the wire passes
through the slot in the side of
the tank. (Figure 6)
6. Reinstall the top cover and
ensure both retaining tabs have
been turned so that they are
pointing inwards.
7. Fill and install the Rell
Container.
!NOTE: Normal tap water can
be used in the Optimyst® as long
as the tap water is not considered
to be hard water. In the event your
tap water is hard, you may use soft-
ened water or distilled water with
1/8 tsp of salt (0.5 mL) added to the
water reservoir. (The addition of
additional salt should only be used
when you notice that the unit is not
producing mist as expected.)
!NOTE: During initial installation,
the Rell Container should be
relled after the Reservoir has lled
to ensure the maximum operating
time.
Remote
Control
Log Media
Housing
Media
Tray

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Figure 6
Top
Cover
Transducer
Emitter
Wire Slot
Assembly
8. Install the media on top, log
assembly or rock media and
media tray, so that the opening
is not blocked (Figure 7).
CAUTION: Do not arrange the
rock media while the unit is running,
since the rocks may be hot.
9. Make sure the On/Off switch
is switched to Off (refer to
Operating Instruction section).
10. Plug the unit into a 15 Amp/
120 volt outlet.
Retaining
Tab
Figure 7
!NOTE: Rock media shown, install
log assembly in the same way.
Fan
Housing
Water Tank