Vermont Castings DBT33 User manual

INSTALLER: DO NOT DISCARD THIS MANUAL - LEAVE FOR HOMEOWNER 10002789
08/00 Rev. 0
INSTALLATION INSTRUCTIONS & HOMEOWNER'S MANUAL
DO NOT STORE
OR USE GASOLINE OR OTHER
FLAMMABLE VAPOURS AND/OR
LIQUIDS IN THE VICINITY OF THIS OR
ANY OTHER APPLIANCE.
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS:
* Do not try to light any appliance.
* Do not touch any electric switch
* Do not use any phone in your building.
* Immediately call your gas supplier from
your neighbours phone. Follow the gas
suppliers instructions.
* If you cannot reach your gas supplier
call the re department
WARNING! IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE OR
EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
FOR YOUR SAFETY
Installation and service must be performed
by a qualied installer, service agency or
your gas supplier.
Top Vent
Direct Vent Models
DBT33
DBT36
DBT39

DBT33/DBT36/DBT39 -2- 10002789/0
TABLE OF CONTENTS
Please Read The Installation & Operating Instructions Carefully Before Using The Appliance.
Important: Read all the instructions and warnings carefully before starting the installation. Failure
to follow these instructions fully may result in a possible re hazard and will void the manufacturers
warranty.
Appliance Installation instructions
Important curing/burning instructions ........................................................................................3
Locating your replace ...............................................................................................................3
Fireplace Dimensions .................................................................................................................4
Clearance to Combustibles .........................................................................................................5
Mantels........................................................................................................................................5
Hearths ........................................................................................................................................5
Framing and Finishing ................................................................................................................5
Final nishing .............................................................................................................................6
Gas Specications.......................................................................................................................6
Gas Inlet & Manifold Pressures..................................................................................................6
Gas Line Installation...................................................................................................................7
Remote Switch Installation.........................................................................................................7
Converting the Appliance Between Gas Types...........................................................................8
Venting Installation Instructions
General Venting Information - Terminal Location .....................................................................9
Connecting Direct Vent Components........................................................................................11
How To Use The Vent Graph ....................................................................................................11
Vertical sidewall Applications ..................................................................................................12
Vertical sidewall Installations ...................................................................................................13
Below Grade Installations.........................................................................................................14
Vertical Through-The-Roof Applications .................................................................................15
Vertical Through-The-Roof Installations..................................................................................17
Venting Components - crimped end venting.............................................................................18
Venting Components - Twist Lock venting ..............................................................................19
Operating Instructions
Glass Warning ...........................................................................................................................20
General Maintenance ................................................................................................................20
Louvre Removal .......................................................................................................................20
Glass/Frame Removal...............................................................................................................20
Glass Cleaning ..........................................................................................................................20
Installation of Logs & Lava Rock.............................................................................................21
Flame & Temperature Adjustment............................................................................................22
Flame Characteristics & Appearance........................................................................................22
Lighting Instructions.................................................................................................................23
Troubleshooting Guide .............................................................................................................24
Replacement Parts
Part Number List.......................................................................................................................26
Parts Pictorial............................................................................................................................28
Optional Accessories
EB-1 Electrical Junction Box ...................................................................................................29
Fan Kits.....................................................................................................................................29
Ceramic Refractory Lining .......................................................................................................31
Window Screen Kit...................................................................................................................31
Decorative Bay Window ...........................................................................................................32
Remote Control Units ...............................................................................................................32
Warranty Imformation...................................................................................................Back Cover

10002789/0 -3- DBT33/DBT36/DBT39
This gas replace should be installed by a qualied installer
in accordance with local building codes and with current CAN
/CGA-B149 (. 1 or .2) Installation codes for Gas Burning
Fireplaces and Equipment.
FOR U.S.A Installations follow local codes and/or the current
National Fuel Gas Code. ANSI Z223.1.
FOR SAFE INSTALLATION AND OPERATION PLEASE
NOTE THE FOLLOWING:
1. This replace gives off high temperatures and should be
located out of high trafc areas and away from furniture
and draperies.
2. Children and adults should be alerted to the hazards of the
high surface temperatures of this replace and should stay
away to avoid burns or ignition of clothing.
3. Caution, due to high glass surface temperature children
should be carefully supervised when they are in the same
room as the replace.
4. Under no circumstances should this replace be modied.
Parts removed for servicing should be replaced prior to
operating the replace again.
5. Installation and any repairs to this replace should be
carried out by a qualied service person. A professional
service person should be contacted to inspect this replace
annually. Make it a practice to have all of your gas re-
places checked annually. More frequent cleaning may
be required due to excess lint and dust from carpeting,
bedding material, etc.
6. Control compartments, burners and air passages in this
replace should be kept clean and free of dust and lint.
Make sure that the gas valve and pilot light are turned off
before you attempt to clean this replace.
7. The venting system (chimney) of this replace should be
checked at least once a year and if needed your venting
system should be cleaned.
8. Keep the area around your replace clear of combustible
materials, gasoline and other ammable vapour and liq-
uids. This replace should not be used as a drying rack for
clothing, nor should Christmas stockings or decorations
be hung on or around the replace.
9. Under no circumstances should any solid fuels (wood,
coal, paper or cardboard etc.) be used in this replace.
10. The ow of combustion and ventilation air must not be
obstructed in any way.
11. When the replace is installed directly on carpeting, vinyl
tile or any combustible material other than wood, the
replace must be installed on a metal or wood panel
extending the full width and depth of the replace.
12. This replace must not be connected to a chimney ue
serving a separate solid fuel burning replace.
13. When the replace is not in use it is recommended that the
gas control valve be left in the OFF position.
This appliance has been approved for
after-market mobile home installations
IMPORTANT:
PLEASE REVIEW THE FOLLOWING CAREFULLY
Remove any plastic from trim parts before turning the re-
place ON.
It is normal for replaces fabricated of steel to give off
some expansion and/or contraction noises during the start
up or cool down cycle. Similar noises are found with your
furnace heat exchanger or car engine.
It is not unusual for your gas replace to give off some
odour the rst time it is burned. This is due to the curing
of the paint and any undetected oil from the manufacturing
process.
Please ensure that your room is well ventilated - open all
windows.
It is recommended that you burn your replace for a least
six (6) hours the rst time you use it. If the optional fan
kit has been installed, place the fan switch in the “OFF”
position during this time.
INSTALLATION & OPERATING INSTRUCTIONS
LOCATING YOUR FIREPLACE
A - Flat on the wall B - Cross Corner
C - * Island D - ** Room Divider
E - ** Flat on wall (in corner) F - Chase Installation
* Island (C) and Room Divider (D) installation is possible
as long as the horizontal portion of the vent system (X)
does not exceed 20' (6.1 m). See details in the venting
section of this manual.
** When you install your replace in a Room divider (D)
or at on the wall in a corner (E), a minimum distance
of 6" (153 mm) clearance must be maintained from the
perpendicular wall and the front of the appliance. See
(Y) in Fig. 1.
Fig. 1

DBT33/DBT36/DBT39 -4- 10002789/0
APPLIANCE DIMENSIONS
Appliance Dimensions
Ref. DBT33 DBT36 DBT39
A 838 mm (33") 914 mm (36") 991 mm (39")
B 733 mm (28.87") 870 mm (34.25") 870 mm (34.25")
C 416 mm (16.37") 533 mm (21") 533 mm (21")
D 787 mm (31") 838 mm (33") 914 mm (36")
E 559 mm (22") 610 mm (24") 610 mm (24")
F 356 mm (14") 406 mm (16") 406 mm (16")
G 810 mm (31.89") 946 mm (37.25") 946 mm (37.25")
H 152 mm (6") 181 mm (7.13") 190 mm (7.5")
I 149 mm (5.87") 171 mm (6.75") 159 mm (6.25")
J 200 mm (7.87") 254 mm (10") 213 mm (8.38")
K 297 mm (11") 343 mm (13.5") 318 mm (12.5")
Framing Dimensions
L 894 mm (35.18") 1010 mm (39.75") 1016 mm (40")
M 1264 mm (49.75") 1403 mm (55.25") 1422 mm (56")
N 708 mm (24.87") 714 mm (28.13") 718 mm (28.25")
ROD 368 mm (14.5") 419 mm (16.5") 419 mm (16.5")
ROW 851 mm (33.5") 927 mm (36.5") 1003 mm (39.5")
ROH 737 mm (29") 889 mm (35") 889 mm (35")

10002789/0 -5- DBT33/DBT36/DBT39
CLEARANCE TO COMBUSTIBLES
Appliance
Top............................. 0 mm (0")
Bottom ....................... 0 mm (0")
Side............................ 0 mm (0")
Back........................... 0 mm (0")
Venting
Concentric sections of DV Vent
Top, bottom & sides .. 25 mm (1")
MANTELS
The height that a combustible mantel is tted above the re-
place is dependent on the depth of the mantel. This also applies
to the distance between the mantel leg (if tted) and the
replace.
For the correct mounting height and widths refer to Fig. 2 and
the following Mantel Charts.
The tting of a bay window trim kit does not effect the
distances and reference points referred to in the diagram and
chart.
Non-combustible mantels and legs may be installed at any
height and width around the appliance.
When using paint or lacquer to nish the mantel, such paint or
lacquer must be heat resistant to prevent discolouration.
HEARTH
A Hearth is not mandatory but it is recommended for aesthetic
purpose. We recommend a non-combustible hearth which
projects out 12" (305 mm) or more from the front of the
replace.
Cold climate Installation Recommendation:
When installing this unit against a non-insu-
lated exterior wall or chase, it is mandatory that
the outer walls be insulated to conform to appli-
cable insulation codes.
FRAMING AND FINISHING
1. Choose the unit location.
2. Place the unit into position and secure it to the oor with
1.5" (38 mm) screws, or nails. The holes to secure the
unit to the oor are located just behind the access door
grille on the left and right side of the unit.
3. Frame in the replace with a header across the top. It is
important to allow for the nished wall face when setting
the depth of the frame.
4. Attach the replace to the frame using the adjustable
frame drywall strips (located behind the access door for
shipping). Preset the depth to suit the facing material of
the wall. The strips are adjustable to 1/2"(13 mm), 5/8"
(16 mm) or 3/4" (19 mm), Fig. 3 & 4.
5. Screw through the slotted holes in the drywall strip and
into the pre-drilled holes in the replace side. Measure
from the face of the replace to the face of the drywall
strip to conrm the nal depth.
Fig. 2

DBT33/DBT36/DBT39 -6- 10002789/0
FINAL FINISHING
Non-combustible materials such as brick or tile may be
extended over the edges of the face of the appliance. DO NOT
cover any vent or grille panels.
If a Trim Kit is going to be installed on the replace, the brick
or tile will have to be installed ush with the edges of the
appliance.
GAS SPECIFICATIONS
Max. Min.
Input Input
Model Fuel Gas Control BTU/h BTU/h
DBT33RN Nat. Millivolt 15,000 10,500
DBT33RP Prop. Millivolt 15,000 11,250
DBT36RN Nat. Millivolt 18,000 12,600
DBT36RP Prop. Millivolt 18,000 13,500
DBT39RN Nat. Millivolt 22,000 15,400
DBT39RP Prop. Millivolt 22,000 16,500
GAS INLET & MANIFOLD
PRESSURES
Fig. 3
Fig. 4
DBT33 / DBT36 / DBT39
CERTIFIED TO
ANSI Z21.88b-1999 / CSA Z2.33b-M99
Vented Gas Fireplace Heaters
Inlet Minimum
Inlet Maximum
Manifold Pressure
Natural Gas LP (Propane)
4.5" WC
7" WC
3.5" WC
11" WC
13" WC
10" WC

10002789/0 -7- DBT33/DBT36/DBT39
GAS LINE INSTALLATION
When purging the gas lines, the front glass must
be removed.
The gas pipeline can be brought in through the rear of the
replace as well as the bottom. Knockouts are provided on the
bottom behind the valve to allow for the gas pipe installation
and testing of any gas connection. It is most convenient to
bring the gas line in from the rear right side of the valve as
this allows fan installation or removal without disconnecting
the gas line.
The gas line connection can be made with properly tinned
3/8” copper tubing, 3/8” rigid pipe or an approved ex con-
nector. Since some municipalities have some additional local
codes it is always best to consult your local authority and the
CAN/CGA-B149 (.1 or .2) installation codes.
For U.S.A. Installations consult the current National Fuel Gas
Code, ANSI Z223.1
Always check for gas leaks with a mild soap and
water solution. Do not use an open ame for
leak testing.
The gas control is equipped with a captured screw type pres-
sure test point, therefore it is not necessary to provide a 1/8”
test point up stream of the control.
When using copper or ex connectors use only approved t-
tings. Always provide a union when using black iron pipe
so that the gas line can be easily disconnected for burner or
fan servicing. See the gas specication for pressure details
and ratings.
The replace valve must not be subjected to any test pressures
exceeding 1/2 p.s.i.. Isolate or disconnect this and any other
gas appliance control from the gas line when pressure testing.
REMOTE ON/OFF SWITCH
Installation
1. Thread the wiring through the holes on the end panels of
the appliance. Take care not to cut the wire or insulation
on metal edges. Route the wire to a conveniently located
receptacle box.
2. Attach the wire to the ON/OFF switch and install the
switch into the receptacle box.
3. Connect the other ends of the wire to the gas control valve
as shown in Fig. 6.
Alternative Switch Location
The remote switch can be installed on the front/side of the
access door. Simply mount the switch to the bracket provided
and screw the bracket to either side of the frame, lining up the
screws with the pre-punched holes, Fig. 7.
Do not wire the remote ON/OFF wall switch for
the gas replace to the 120 volt power supply.
Fig. 5
Fig. 6
Fig. 7

DBT33/DBT36/DBT39 -8- 10002789/0
CONVERTING THE APPLIANCE
FROM LP TO NATURAL GAS OR
NATURAL GAS TO LP.
The DBT33 is convertible between Natural Gas an LP gas
(and vice-versa) with the use of a conversion kit purchased
seperately, see your dealer for the correct part number.
The DBT36 & 39 can only be converted from
Propane to Natural gas.
The conversion of this appliance from one gas
to another must be carried out by an authorized
service provider.
1. Disconnect power to the unit and shut off the gas supply.
2. Remove the glass/frame assembly.
3. Carefully remove the logs & lava rock material
4. Remove the screws that are holding the burner housing
in place.
5. Remove the burner housing. Depending on the model of
the appliance you may have to loosen the pilot bracket
retaining screw/nut to allow the pilot and bracket assem-
bly to tilt and give enough clearance to remove the burner
housing.
6. Remove the main burner orice and replace it with the
orice supplied in the conversion kit.
7. SIT Top Convertible Pilot
Gently lift off the pilot hood from the pilot. (Do not
remove the spring clip holding the hood in place). Using
a correctly sized Allen key unscrew the exposed orice.
Insert the new orice supplied in the kit, do not over
tighten the orice. Replace the pilot hood ensuring the
index tab aligns with the notch on the hood.
PSE Pilot
Using a suitable wrench on the hexagonal body unscrew
the pilot hood assembly from the pilot, do not twist the
hood itself. Remove the orice and replace it with the
new orice supplied in the kit. Ret the pilot hood
assembly. Do not over-tighten the pilot hood. The hood
must return to its original alignment. Take care not to
damage the thermocouple, thermopile or igniter.
9. SIT 820 NOVA Gas Control Valve (Fig. 9)
a) Using a Torx T20 or slotted screwdriver, remove and
save the three pressure regulator mounting screws (A),
pressure regulator tower (B) and diaphragm (C).
b) Ensure the rubber gasket (D) is properly positioned and
install the new Hi/Lo pressure regulator to the valve using
the new screws (E) supplied with the kit. Tighten screws
securely. (Reference torque - 25 in.Lb).
c) Install the enclosed identication label (F) to the valve
body where it can be easily seen.
Honeywell Gas Control Valve (Fig. 10)
The Honeywell valve tted to this unit is suitable
for use with LP or Natural Gas. It is converted to
the required gas application by the installation of a
colour coded “conversion screw”.
a) Using a suitable small screwdriver lift out the central
regulator cap from the ‘Hi - Lo’ knob on the valve.
b) Unscrew the exposed conversion screw.
c) Insert the new colour coded conversion screw. Do not
over-tighten the screw, it must be nger tight.
d) Ret the regulator cap.
e) Mount the conversion label supplied with the conver-
sion screw to the valve in a visible position.
10. Reassemble the replace in the reverse order, except for
the front glass. Leave this off until the unit has been
checked for leaks and the gas supply line has been bled.
11. After bleeding the gas line and checking for leaks with a
soap solution, replace the front glass. Fire up the unit,
check for ame impingement on the logs, adjusting them
if necessary. Check the manifold and supply pressures
against the appliance specications.
The procedure for converting from one gas to
another is the same regardless of the initial gas
used. The only variation is in the orice sizes
and component part numbers. Your authorized
service provider will ensure the correct parts are
used.
Fig. 9
Fig. 10

10002789/0 -9- DBT33/DBT36/DBT39
A = clearance above grade, veranda, porch, deck, or bal-
cony [* 12 inches (305mm) minimum]
B = clearance to window or door that may be opened [12"
(306mm)].
C = clearance to permanently closed window [minimum 12
inches (305mm) recommended to prevent condensation
on window]
D = vertical clearance to ventilated soft located above
the terminal within a horizontal distance of 24 inches
(610mm) from the centre-line of the terminal [18 inches
(458mm) minimum]
E = clearance to unventilated soft [12 inches (305mm) min-
imum].
F = clearance to outside corner see next page
G = clearance to inside corner see next page
H = * not to be installed above a meter/regulator assembly
within 36 inches (914mm) horizontally from the centre-
line of the regulator
† a vent shall not terminate directly above a side-walk or paved driveway which is located between two single
family dwellings and serves both dwellings *
‡ only permitted if veranda, porch, deck, is fully open on a minimum 2 sides beneath the oor *
* as specied in CAN/CGA B149 (.1 or .2) Installation Codes (1991) for Canada or for U.S.A. Installations follow
the current National Fuel Gas Code, ANSI Z223.1.
Note: Local codes or regulations may require different clearances.
I = clearance to service regulator vent outlet [*72 inches
(1828mm) minimum]
J = clearance to non-mechanical air supply inlet to building
or the combustion air inlet to any other replace [ *12
inches (305mm) minimum]
K = clearance to a mechanical air supply inlet [* 72 inches
(1828mm) minimum]
L = † clearance above paved side-walk or a paved driveway
located on public property [*84 inches (2133mm) mini-
mum]
M = clearance under veranda, porch, deck [*12 inches
(305mm) minimum ‡]
N = Clearance above a roof shall extend a minimum of 24"
(610mm) above the highest point when it passes through
the roof surface, and any other obstruction within a
horizontal distance of 18" (450mm).
Do not locate termination hood where excessive snow or ice
build up may occur. Be sure to check vent termination area
after snow falls, and clear to prevent accidental blockage of
venting system. When using snow blowers, make sure snow is
not directed towards vent termination area.
Location of Vent Termination
It is imperative that the vent termination be located observing
the minimum clearances as shown on this page.
*Check with local codes or in absence of same with CAN/
CGA B149 (.1 or .2) Installation Codes (1991) for Canada or
for U.S.A. Installations follow the current National Fuel Gas
Code, ANSI Z223.1.
Your replace is approved to be vented either through the side
wall, or vertically through the roof.
– Only venting components specically approved and
labelled for this replace may be used.
– Minimum clearances between vent pipes and combusti-
ble materials is one (1") inch (25 mm).
– Venting terminals shall not be recessed into a wall or
siding.
– Horizontal venting must be installed on a level plane
without any incline or decline.
There must not be any obstruction such as bushes, garden sheds,
fences, decks or utility buildings within 24" from the front of the
termination hood.
GENERAL VENTING INFORMATION — TERMINATION LOCATION

DBT33/DBT36/DBT39 -10- 10002789/0
Fig. 11 Fig. 12
Fig. 13 Fig. 14 Fig. 15