Desa M36B Safety guide

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NATURAL GAS MODELS
M36(B,H), M42(B,H), VM36(B,H)
AND VM42(B,H)
PROPANE/LP GAS MODELS
M36P(B,H), M42P(B,H),
VM36P(B,H) AND VM42P(B,H)
B-VENT DECORATIVE GAS FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
FOR YOUR SAFETY
— Donotstoreorusegasolineoranyotherammable
vapors or liquids in the vicinity of this or any other
appliance.
— WHAT TO DO IF YOU SMELL GAS :
• Donottrytolightanyappliance.
• Donottouchanyelectricalswitch;
• Donotuseanyphoneinyourbuilding.
• Immediatelycallyourgassupplierfromaneighbor’s
phone.Followthegassupplier’sinstructions.
• Ifyoucannotreachyourgassupplier,callthere
department.
— Installationandservicemustbeperformedbyaquali-
edinstaller,serviceagencyorthegassupplier.
INSTALLER:Leavethismanualwiththeappliance.
CONSUMER:Retainthismanualforfuturereference.
WARNING:Iftheinformationintheseinstructions
isnotfollowedexactly,areorexplosionmayresult
causingpropertydamage,personalinjuryordeath.
O-TL REPORT # 114-F-16-4

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 WARNING: Improper installation, adjustment, al-
teration, service or maintenance can cause injury or
propertydamage.Refertothismanualforcorrectin-
stallation and operational procedures. For assistance
or additional information consult a qualied installer,
service agency or the gas supplier.
NOT FOR USE WITH SOLID FUEL
CHECK LOCAL CODES PRIOR TO INSTALLATION
SAVE THIS BOOK
Thisbookisvaluable.Inadditiontoinstructingyouon
howtoinstallandmaintainyourappliance,italsocon-
tainsinformationthatwillenableyoutoobtainreplace-
mentpartsoroptionalaccessoryitemswhenneeded.
Keepitwithyourotherimportantpapers.
Thisappliancemaybeinstalledinanaftermarket*,per-
manentlylocated,manufactured(mobile)home,where
notprohibitedbystateorlocalcodes.
Thisapplianceisonlyforusewiththetypeofgasindi-
cated on the rating plate.
This appliance is not convertible for use with other
gases,unlessacertiedkitisused.
*Aftermarket:Completionofsale,notforpurposeofresale,fromthemanufacturer.
StateofMassachusetts:Theinstallationmustbemade
byalicensedplumberorgastterintheCommonwealth
of Massachusetts.
TABLE OF CONTENTS
Safety .................................................................. 3
Unpacking............................................................ 4
Introduction.......................................................... 4
Selecting Location ............................................... 5
Product Specications......................................... 6
Pre-Installation Preparation................................. 7
Venting Installation .............................................. 9
Installation ..........................................................11
Operation........................................................... 19
Inspecting Burners ............................................ 20
Cleaning and Maintenance................................ 21
Wiring Diagram.................................................. 22
Replacement Parts............................................ 22
Service Hints ..................................................... 22
Technical Service............................................... 22
Troubleshooting................................................. 23
Parts .................................................................. 26
Accessories ....................................................... 31
Warranty ..............................................Back Cover

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108795-01V 3
SAFETY
1. This appliance is only for use with the type
of gas indicated on the rating plate. This
appliance is not convertible for use with
other gases unless a certied kit is used.
2. For propane/LP replace, do not place
propane/LP supply tank(s) inside any
structure. Locate propane/LP supply
tank(s) outdoors. To prevent performance
problems, do not use propane/LP fuel tank
of less than 100 lbs. capacity.
3. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do not
use any phone in your building
• immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier's instructions
• if you cannot reach you gas supplier, call
the re department.
4. Never install the replace
• in a recreational vehicle
• where curtains, furniture, clothing or
other ammable objects are less than
42" from front, top or sides of replace
• in high trafc areas
• in windy or drafty areas
5. This replace reaches high temperatures.
Keep children and adults away from hot
surfaces to avoid burns or clothing igni-
tion. Fireplace will remain hot for a time
after shutdown. Allow surfaces to cool
before touching.
6. Carefully supervise young children when
they are in the room with replace.
7. A hearth extension is not required with this
appliance. If one is installed, it is for aes-
thetic purposes only and does not have
to meet the standard requirements.
8. Turn replace off and let cool before ser-
vicing or repairing. Only a qualied service
person should install, service or repair
this replace. Have replace inspected
annually by a qualied service person.
9. You must keep control compartments,
burners and circulating air passages clean.
More frequent cleaning may be needed due
to excessive lint and dust from carpeting,
bedding material, etc. Turn off the gas valve
and pilot light before cleaning replace.
10. Have venting system inspected annually by
a qualied service person. If needed, have
venting system cleaned or repaired. See
Cleaning and Maintenance, page 21.
WARNING: This product con-
tainsand/orgenerateschemicals
knowntotheStateofCalifornia
tocausecancerorbirthdefects
orotherreproductiveharm.
IMPORTANT:Readthisowner’s
manualcarefullyandcompletely
before trying to assemble, op-
erate or service this replace.
Improper use of this replace
cancauseseriousinjuryordeath
from burns, re, explosions,
electrical shock and carbon
monoxidepoisoning.
DANGER:Carbonmonoxide
poisoningmayleadtodeath!
This replace is a vented product. This replace
will not produce any gas leakage into your home
if properly installed. This replace must be
properly installed by a qualied service person.
If this unit is not properly installed by a qualied
service person, gas leakage can occur.
CarbonMonoxidePoisoning: Early signs of
carbon monoxide poisoning resemble the u,
with headaches, dizziness or nausea. If you
have these signs, the replace may not have
been installed properly. Getfreshairatonce!
Have replace inspected and serviced by a
qualied service person. Some people are more
affected by carbon monoxide than others. These
include pregnant women, people with heart or
lung disease or anemia, those under the inu-
ence of alcohol and those at high altitudes.
Propane/LP gas and natural gas are both
odorless. An odor-making agent is added
to each of these gases. The odor helps you
detect a gas leak. However, the odor added
to these gases can fade. Gas may be present
even though no odor exists.
Make certain you read and understand all
warnings. Keep this manual for reference. It
is your guide to safe and proper operation of
this replace.
WARNING: Any change to
thisreplaceoritscontrolscan
bedangerous.

www.desatech.com 108795-01V4
11. Keep the area around your fireplace
clear of combustible materials, gasoline
and other ammable vapor and liquids.
Do not run fireplace where these are
used or stored. Do not place items such
as clothing or decorations on or around
replace.
12. Do not use this replace to cook food or
burn paper or other objects.
13. Do not use any solid fuels (wood, coal,
paper, cardboard, etc.) in this replace.
Use only the gas type indicated on re-
place nameplate.
14. This appliance, when installed, must be
electrically grounded in accordance with
local codes or, in the absence of local
codes, with the National Electrical Code,
ANSI/NFPA 70 or the Canadian Electrical
Code, CSA C22.1.
15. Do not obstruct the ow of combustion
and ventilation air in any way. Provide
SAFETY
Continued
INTRODUCTION
adequate clearances around air open-
ings into the combustion chamber along
with adequate accessibility clearance for
servicing and proper operation.
16. Do not install replace directly on carpet-
ing, vinyl tile or any combustible material
other than wood. The replace must set
on a metal or wood panel extending the
full width and depth of the replace.
17. Do not use replace if any part has been
exposed to or under water. Immediately
call a qualied service person to arrange
for replacement of the unit.
18. Do not operate fireplace if any log is
broken.
19. Do not use a blower insert, heat exchang-
er insert or other accessory not approved
for use with this replace.
20. Provide adequate clearances around air
openings.
UNPACKING
The following items are packed inside the
rebox. Remove before positioning rebox
into framing.
• Transition Collar - For vent connection
• Ceramic Log Pack - Shrink-wrapped on
cardboard
• Three (3) plastic bags containing lava rock,
pan and ember materials
• Rear Log - Remove the two plastic quick
ties from around the burner and grate
• Grate Stand - Lift off of burner pan
Check all items for any shipping damage. If
damaged, promptly inform dealer or distributor
where you bought the product.
Safely retain these items for later installation.
Models M36(P)(B,H), VM36(P)(B,H),
M42(P)(B,H) and VM42(P)(B,H) are vented
gas replaces that use a millivolt gas control
valve with a millivolt ignition system. A 6" B-
Type venting system and a listed type vent cap
are not supplied but are required for proper
operation. See venting instructions on pages
9 and 10.
WARNING: This gas appli-
ancemustnotbeconnectedto
achimneyueservicingasolid
fuelburningappliance.
BEFORE YOU BEGIN
Before beginning the installation of your
appliance, read these instructions through
completely.
This DESA Heating, LLC appliance and its
approved components are safe when installed
according to this installation manual and are
operated as recommended by DESA Heating,
LLC. Unless you use DESA Heating, LLC ap-
proved components tested for this appliance,
YOUMAYCAUSEAFIREHAZARD!
The DESA Heating, LLC warranty will be
voided by and DESA Heating, LLC disclaims
any responsibility for the following actions :
A) Modication of the appliance or any of the
components.
B) Use of any component part not approved
by DESA Heating, LLC in combination
with this appliance.
C) Installation and/or operation in a manner
other than instructed in this manual.
D) Burning of anything other than the type of
gas approved for use in this gas appliance.

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108795-01V 5
The installation must conform with local codes
or, in the absence of local codes, with the cur-
rent National Fuel Gas Code, ANSI Z223.1/
NFPA 54. This appliance complies with ANSI
Z21.50/CSA 2.22.
WARNING: Installation of
thisapplianceshould bedone
by a qualied service person
well trained in the installation
of such appliances. You will
alsoneedabuildingpermitfrom
your local Building and Safety
Commissionerbeforeinstalling
this appliance; otherwise your
insuranceco.maynotcoverthis
appliance.
NOTICE: This appliance is not
intendedtobeusedasaprimary
source of heat.
INTRODUCTION
Continued
Figure 1 - Possible Locations for
Installing Appliance
INTERNAL WALL
INSTALLATION
CORNER
INSTALLATION
FULL
PROJECTION
INSTALLATION
FLUSH
INSTALLATION
CAUTION: Do not connect
appliancebeforepressuretest-
inggaspiping.Damagetogas
valvemayresultandanunsafe
conditionmaybecaused.
The appliance and it’s individual shutoff valve
must be disconnected from gas supply piping
system during any pressure testing of that
system at test pressures in excess of 1/2
psig (3.5 kPa).
The appliance must be isolated from the gas
supply piping system by closing its individual
manual shutoff valve during any pressure testing
of the gas supply piping system at test pressures
equal to or less than 1/2 psig (3.5 kPa).
For the purpose of input adjustment two
pressure taps (for IN and OUT pressures)
are provided on the gas control valve for test
gauge connections to the appliance.
Flush installations are recommended where
living space is limited or at a premium and
since the space required to enclose the ap-
pliance would be located beyond an outside
wall, this would also reduce the cutting of
joists, roof rafters and such. Check local
codes for any restrictions.
Projected installations can extend any
distance into the room. A projection may
be ideal for a new addition on an existing,
nished wall.
Corner installations make use of space
that may not normally be used and provides
a wider and more efcient range for radiant
heat transference.
Internalwallinstallations provide a discreet
option for room separation and can also be
ideal as an addition to an existing wall.
SELECTING LOCATION
To determine the safest and most efcient
location for your appliance, you must take into
consideration the following guidelines:
1. The location must allow for proper clear-
ances (see Clearances, page 7).
2. Consider a location where heat output
would not be affected by drafts, air con-
ditioning ducts, windows or doors.
3. A location that avoids the cutting of joists
or roof rafters will make installation easier.
Figure 1 shows a plan view of a few com-
mon locations.