Dimplex OS2527GB User manual

Owner’s Manual
Model
OS2527GB
6909560100
7213880100R00
IMPORTANT SAFETY INFORMATION: Always read this manual rst
before attempting to install or use the stove. 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 unit.
!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
Installation..................................6
Assembly...................................7
Operation...................................9
Maintenance...............................12
Warranty .................................14
Replacement Parts ..........................16

3
Model Number
Serial Number
Welcome & Congratulations
Thank you and congratulations for purchasing an Optimyst®stove 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)
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:
①Read all instructions before
using the unit.
② The heater 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 of fully cover the front of
this heater.
③ Extreme caution is necessary
when any heater is used by or near
children or invalids and whenever
the unit is left operating and
unattended.
④ Always unplug the unit when
not in use.
⑤ Do not operate any unit with
a damaged cord or plug, or if
the unit has been dropped or
damaged in any manner. Contact
Dimplex Technical Service at
1-888-346-7539.
⑥ Do not use outdoors.
⑦ The unit is not intended for use
in bathrooms, laundry areas and
IMPORTANT INSTRUCTIONS
similar indoor locations. Never
locate unit where it may fall into a
bathtub or other water container.
⑧ Do not run the cord under
carpeting. 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.
⑨ To disconnect the unit, turn the
controls off, then remove the plug
from the outlet.
⑩ Always use properly grounded,
fused and polarized outlets.
⑪ Do 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 re, do
not block air intake or exhaust
in any manner. Do not use on
soft surfaces, like a bed, where
openings may become blocked.
⑬ All electrical heaters have hot
and arching or sparking parts inside.
Do not use in areas where gasoline,
paint, or ammable liquids are used
or stored or where the unit will be
exposed to ammable vapors.
⑭ Do not modify the unit. Use it
only as described in this manual.
Any other use not recommended

5
SAVE THESE INSTRUCTIONS
by the manufacturer may cause
re, electric shock or injury to
persons.
⑮ To reduce the risk of electric
shock, this appliance must be
grounded. Avoid the use of an
extension cord. Extension cords
may overheat and cause a risk of
re. Always plug heaters directly
into a wall outlet/receptacle. Never
use with an extension cord or
relocatable power tap (outlet/power
strip).
⑯ Do not burn wood or other
materials in the unit.
⑰ Always use a certied
electrician should new circuits or
outlets be required.
⑱ Disconnect the power supply
before performing any cleaning,
maintenance or relocation of the
unit.
⑲ When transporting or storing
the unit and cord, keep in a
dry place, free from excessive
vibration and store so as to avoid
damage.
⑳ The stove must not be located
directly below a socket outlet.
㉑ The stove must be positioned
so that the plug is accessible.
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.
IMPORTANT INSTRUCTIONS
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
NO USER-SERVICEABLE PARTS INSIDE

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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.
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: 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: 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.
!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 the fuse
blows on a regular basis when the
heater is operating. Additional ap-
pliances on the same circuit may
exceed the current rating of the
circuit breaker.
CAUTION: A minimum of
24.6in. (625mm) from a corner, is
recommended for optimum airow
and ame production.
Wiring
LINE IN
MOTOR
ELEMENT
THERMAL
CUTOUT
PCB
ELEMENT
THERMOSTAT
TRANSFORMER
TRANSFORMER
LIGHTSLIGHTS
POWER
BOARD
SELECTOR SWITCH
POTENTOMETER
IR SENSOR
TRANSDUCER
FAN MOTOR
N1
N2
3
4
5
6
NEUTRAL
GROUND

7
Logset
Removable
Rell
Container
Light
Bulbs
Assembly
Figure 1
1. Carefully unpack all of the
components from the box.
(Figure 1)
2. Remove top cover by turning
the retaining tabs on both
ends of the water reservoir.
(Figure 2)
3. Install the light bulbs by
aligning the pins on the bulbs
and the xture and pressing
down until they are fully
inserted. (Figure 2)
4. Install the transducer so that
it is sitting level in the circular
holding area in the reservoir.
Figure 2
Top
Cover
Transducer Emitter
Wire Slot
Remote
Control
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 2)
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

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Assembly
Figure 3
use softened 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 produc-
ing 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.
8. Install the logset on top,
so that the opening is not
blocked.
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.

9
Operation
!NOTE: When the unit is used
in an environment where back-
ground noise is very low, it may
be possible to hear a sound which
is related to the operation of the
ame effect. This is normal and
should not be a cause for con-
cern.
!NOTE: Always ensure that
the appliance is in a level posi-
tion.
The manual controls for the unit
are located below the control
cover infront of the log grate
(Figure 4).
A. On/Off Switch
Supplies power to the unit.
B. Thermostat Control
To adjust the temperature to your
individual requirements, turn
the thermostat control clock-
wise all the way to turn on the
heater. When the room reaches
the desired temperature, turn
the thermostat knob counter-
clockwise until you hear a click.
Leave thermostat in this position
to maintain the room temperature
at this setting. For additional heat,
turn clockwise until you hear the
click again and the heater will turn
on.
C. Mode Selector Switch
Press once to turn on the
ame effect. This will be indicated
by an audible “beep”. Although
the lights turn on immediately it
will take 30 seconds before the
ame effect starts.
• Press again to give ame ef-
fect and full heat. This will be
indicated by two “beeps”.
• Press again to return to ame
effect only. This will be indi-
cated by one “beep”.
• Press to put re in to
standby mode. This will be
indicated by one “beep”.
D. Flame Intensity Control
Adjusts the intensity of the ame
and smoke effect when the heater
BA
C
D
Figure 4

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has been activated.
Turning the control knob clock-
wise decreases the intensity of
the ame and smoke effect. Turn-
ing the control counterclockwise
will increase the ame and smoke
effect.
!NOTE: Give the ame genera-
tor some time to react to changes
you may make on the ame
control knob.
!NOTE: When the water tank is
empty the unit will turn off after 30
seconds. See instructions under
Maintenance Section for rell-
ing tank. When this procedure is
complete, the main lamps will illu-
minate but it will take 30 seconds
before the ames return.
Resetting the Temperature
Cutoff Switch
Should the heater overheat, an
automatic cut out will turn the
replace off and it will not come
back on without being reset. It
can be reset by switching the On/
Off Switch to Off and waiting 10
minutes before switching the unit
back on.
CAUTION: If you need to con-
tinuously reset the heater, unplug
the unit and call Dimplex North
America Limited at 1-888-346-
7539 for technical support. Please
have your model and serial num-
ber ready when calling.
Remote Control
The On/Off Switch must be in the
‘ON’ ( I ) position in order for the
remote control to operate (Figure
3A). There are 3 buttons on the
remote control. (Figure 5)
!NOTE: To operate cor-
rectly the remote control must
be pointed towards the remote
control sensor.
The remote control functions are
as follows:
Press once to turn on Flame
effect only. This will be indi-
cated by one beep.
Press once to turn on Full
heat and Flame effect. This
will be indicated by two
beeps.
Standby - This will be indi-
cated by one beep.
!NOTE: Once the mist has
been activated, the unit will have
to be turned Off, using either the
momentary button, on the unit,
or the Off button on the remote
control, then back on to return
Operation

11
Battery Cover
Figure 5
Standby
Button
Flame
Button
to Level 1 - Logs and Light only
operation.
Battery Replacement
To replace the battery:
1. Slide battery cover open on
the remote control (Figure 5).
2. Install two 1.5 Volt (AAA) bat-
tery 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.
Operation
Heat
Button

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WARNING: Disconnect power
before attempting any main-
tenance or cleaning to reduce
the risk of re, electric shock
or damage to persons.
Filling the water tank
When the water tank is empty,
the ame effect shuts off and you
will hear 2 audible beeps, follow
these steps.
CAUTION: Allow at least ve
minutes for components to cool
before disassembling the unit to
rell.
1. Turn the On/Off switch to the
off position (0) (Figure 8)
2. Gently remove the logset
and place it carefully on the
ground.
3. Remove the rell container by
lifting upwards and outwards.
4. Rell the container with tap
water.
!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 softened 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 when you notice
that the unit is not producing mist
as expected.)
5. Screw the cap back on, do
not overtighten.
6. Return the rell container to
the sump, with the tank cap
facing down and the at side
of the tank facing outward.
7. Gently place the logset back
into position.
8. Turn the On/Off switch to the
off position (I). (Figure 8)
If you do not intend on using
the unit for longer than 2 weeks,
empty and drain the unit of water,
and dry all of the water containing
components.
Replacing the Light bulbs
If a large amount of the smoke
appears grey or colourless it may
be that one or more of the light
bulbs have burnt out.
CAUTION: Allow at least
twenty minutes for light bulbs
to cool before touching bulbs to
avoid accidental burning of skin.
1. Leaving the ame effect on,
remove the logset and water
tank and lift out the top cover
(Figure 6).
2. View the lamps from a dis-
tance in front of the re and
observe which lamp needs to
Maintenance

13
Maintenance
Figure 10
be changed.
3. Turn the unit off, and unplug
the unit.
4. Leave the appliance for 20
minutes to allow the lamps to
cool down before removing
them.
5. Remove the defective bulb,
by gently lifting vertically and
disengaging the pins from the
lamp holder.
!NOTE: Replacement light
bulbs can be obtained by contact-
ing Dimplex Customer Service at
1-888-346-7539.
6. Carefully insert the two pins
of the new bulb into the two
holes in the lamp holder.
Push lamp rmly in place.
7. Replace the top cover, rell
container and logset.
Cleaning
It is recommended that all of the
components that contain water
are cleaned with soap and water
on a biweekly basis. A small
brush has been included to assist
in cleaning difcult items/areas,
i.e. the transducer.
CAUTION: Do not put plastic
components in the dishwasher.
Sump Filter
Filter Cleaning
The air lter can be removed
and gently rinsed with water to
clean and dried on a towel before
reinstalling.
!NOTE: Replace the lter so
that the course black lter is fac-
ing the front of the unit.
Surface Cleaning
Use a warm damp cloth only to
clean surfaces of the unit. Do not
use abrasive cleaners.
!NOTE: If you need to move
the unit ensure that all of the com-
ponents that contain water have
been emptied before relocating.

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ONE YEAR LIMITED WARRANTY
Products to which this limited warranty
applies
This limited warranty applies to your newly
purchased Dimplex stove and to newly
purchased Dimplex replace surrounds
(mantels) and trims. This limited warranty
applies only to purchases made in any
province of Canada except for Yukon
Territory, Nunavut, or Northwest Territories
or in any of the 50 States of the USA (and
the District of Columbia) except for Hawaii
and Alaska. This limited warranty applies
to the original purchaser of the product
only and is not transferable.
Products excluded from this limited war-
ranty
Products purchased in Yukon Territory,
Nunavut, Northwest Territories, Hawaii,
or Alaska are not covered by this limited
warranty. Products purchased in these
States, provinces, or territories are sold
AS IS without warranty or condition of
any kind (including, without limitation,
any implied warranties or conditions of
merchantability or tness for a particular
purpose) and the entire risk of as to the
quality and performance of the products is
with the purchaser, and in the event of a
defect the purchaser assumes the entire
cost of all necessary servicing or repair.
What this limited warranty covers and for
how long
Products covered by this limited warranty
have been tested and inspected prior to
shipment and, subject to the provisions
of this warranty, Dimplex warrants such
products to be free from defects in mate-
rial and workmanship for a period of 12
months from the date of the rst purchase
of such product.
The limited 12 month warranty period also
applies to any implied warranties that may
exist under applicable law. Some jurisdic-
tions do not allow limitations on how long
an implied warranty lasts, so the above
limitation may not apply to the purchaser.
What this limited warranty does not cover
This limited warranty does not apply to
products that have been repaired (except
by Dimplex or its authorized service
representatives) or otherwise altered. This
limited warranty does further not apply
to defects resulting from misuse, abuse,
accident, neglect, incorrect installation,
improper maintenance or handling, or
operation with an incorrect power source.
What you must do to get service under
this limited warranty
Defects must be brought to the attention of
Dimplex Technical Service by contacting
Dimplex at 1-888-DIMPLEX (1-888-346-
7539), or 1367 Industrial Road, Cam-
bridge Ontario, Canada N1R 7G8. Please
have proof of purchase, catalogue/model
and serial numbers available when calling.
Limited warranty service requires a proof
of purchase of the product.
What Dimplex will do in the event of a
defect
In the event a product or part covered by
this limited warranty is proven to be defec-
tive in material or workmanship during the
12 month limited warranty period you have
the following rights:
• Dimplex will in its sole discretion
either repair or replace such defec-
tive product or part without charge. If
Dimplex is unable to repair or replace
such product or part, or if repair or
replacement is not commercially
Warranty

15
practicable or cannot be timely made,
Dimplex may, in lieu of repair or
replacement, choose to refund the
purchase price for such product or
part.
• Limited warranty service will be per-
formed solely by dealers or service
agents of Dimplex authorized to
provide limited warranty services.
• The purchaser is responsible for
removal and transportation of such
product or part (and any repaired
or replacement product or part) to
and from the authorized dealer's or
service agent's place of business.
• This limited warranty does not entitle
the purchaser to on-site or in-home
services. On-site or in-home services
may be performed at the purchaser's
specic request and expense at
Dimplex’s then-current rates for such
services.
• Dimplex will not be responsible for,
and the limited warranty services
shall not include, any expense
incurred for installation or removal of
the product or part (or any replace-
ment product or part) or any labour or
transportation costs. Such costs shall
be the purchaser’s responsibility.
What Dimplex and its dealers and service
agents are also not responsible for:
IN NO EVENT WILL DIMPLEX, OR ITS
DIRECTORS, OFFICERS, OR AGENTS,
BE LIABLE TO THE PURCHASER OR
ANY THIRD PARTY, WHETHER IN CON-
TRACT, IN TORT, OR ON ANY OTHER
BASIS, FOR ANY INDIRECT, SPECIAL,
PUNITIVE, EXEMPLARY, CONSEQUEN-
TIAL, OR INCIDENTAL LOSS, COST,
OR DAMAGE ARISING OUT OF OR
IN CONNECTION WITH THE SALE,
MAINTENANCE, USE, OR INABILITY TO
USE THE PRODUCT, EVEN IF DIMPLEX
OR ITS DIRECTORS, OFFICERS, OR
AGENTS HAVE BEEN ADVISED OF
THE POSSIBILITY OF SUCH LOSSES,
COSTS OR DAMAGES, OR IF SUCH
LOSSES, COSTS, OR DAMAGES ARE
FORESEEABLE. IN NO EVENT WILL
DIMPLEX, OR ITS OFFICERS, DIREC-
TORS, OR AGENTS BE LIABLE FOR
ANY DIRECT LOSSES, COSTS, OR
DAMAGES THAT EXCEED THE PUR-
CHASE PRICE OF THE PRODUCT.
SOME JURISDICTIONS DO NOT ALLOW
THE EXCLUSION OR LIMITATION OF
INCIDENTAL OR CONSEQUENTIAL
DAMAGES, SO THE ABOVE LIMITATION
OR EXCLUSION MAY NOT APPLY TO
THE PURCHASER.
How State and Provincial law apply
This limited warranty gives you specic
legal rights, and you may also have other
rights which vary from jurisdiction to juris-
diction. The provisions of the United Na-
tions Convention on Contracts for the Sale
of Goods shall not apply to this limited
warranty or the sale of products covered
by this limited warranty.
Warranty

16 www.dimplex.com
Replacement Parts
Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9600385600RP
Remote Control Receiver .............................9600580100RP
Logset Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9600720100RP
Heating Assembly (with cutout) . . . . . . . . . . . . . . . . . . . . . . . . . 9601420100RP
Light Holder Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9600610200RP
Removable Rell Container with Cap ....................0441440100RP
Cap for Rell Container . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0441440300RP
Top Cover Assembly .................................9600670100RP
Water Reservoir (Sump) ..............................0441380100RP
Fan Assembly ......................................5300300100RP
Fan Housing Assembly ...............................9600540100RP
Fan Filter ..........................................8600300100RP
Transducer ........................................3800040100RP
Power Cord ........................................9600740100RP
On/Off Switch ......................................9600383500RP
3-Position Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9600383600RP
Transformers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9600690100RP
Potentiometer ......................................9600640100RP
Thermostat Assembly ................................9600620100RP
Control Knob .......................................9600630200RP
Power Board .......................................9600590100RP
IR Receiver with Lens ................................9600600200RP
Light Bulbs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RB400
© 2015 Dimplex North America Limited
Dimplex North America Limited
1367 Industrial Road
Cambridge ON
Canada N1R 7G8