Fire feature L38DF-ST Owner's manual

L38DF-ST
(See-thru)
For Indoor Use
Installation
Operation &
Maintenance
Warning:
Improper installation, adjustment,
alteration, service or maintenance can
cause injury or property damage. Refer to
this manual. For assistance or additional
information consult a qualied installer,
service agency or the gas supplier.
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.
For Your Safety:
Do not store or use
gasoline or other ammable
vapors and liquids in the
vicinity of this or any other
appliance.
®
C US
f i r e f e a t u r e
Installer: Leave this manual
with the appliance.
Consumer: Leave this man-
ual for future reference.
Check local codes and read all
instructions prior to installation.
Direct-Vented
Gas Fireplace
Safety Notice:
Glass doors on gas replaces are
extremely hot while the replace is on
and remain hot even after the replace
has been turned off. Safety screens
are available and can reduce the risks
of severe burns. Please keep children
away from the replace at all times.

Page 2
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Table Of Contents Introduction
Thank You for choosing a Montigo Gas Fireplace.
About this Fireplace:
TheL38DF-ST(See-thru) are replaces' with a linear-style burner. These
replaces can be converted to both a Top Vent or Rear Vent application,
and are only available in a L38DF-ST model.
The L38DF-ST (See-thru) is rated for Natural Gas or Propane at 27,000
BTU/H (7.91 Kilowatts) Input.
► L38DF-ST; Top Vent, Millivolt Pilot.
► L38DF-ST-I; Top Vent, Intermittent Pilot (HSI).
► L38DF-ST-A; Top Vent, Electronic Ignition, (American Flame).
► L38DF-ST-F; Top Vent, Electronic Ignition, (HSI).
This manual covers installation, operation and maintenance. Lighting,
operation and care of this replace can be easily performed by the
homeowner. However, all installation and service work should be
performed by a qualied or licensed installer, plumber, or gas tter who
is qualied or licensed by the state, province, region, or governing body
in which the appliance is being installed.
This manual covers all models and unless otherwise specied, the
designation L38DF-ST refers to all variations of the model above.
Sections which are specic to a particular variation are marked with a
symbol, plus the appropriate model number.
Warranty and Installation Information:
The Montigo warranty will be voided by, and Montigo disclaims any
responsibility for, the following actions:
► Modication of the replace and/or components including Direct-Vent
assembly or glass doors.
► Use of any component part not manufactured or approved by Montigo in
combination with this Montigo replace system.
► Installation other than as instructed in this manual.
Consult your local Gas Inspection Branch on installation requirements
for factory-built gas replaces. Installation & repairs should be done by
a qualied contractor.
Installations in Canada must conform to the current CAN/CGA B-
149.1 and .2 Gas Installation Code and local regulations. If the optional
air-circulating fan kit is installed, it must be electrically grounded in
accordance with CSA C22.1 Canadian Electrical Code Part 1 and/or
Local Codes.
Installations in the USA must conform to local codes, or in the absence
of local codes to the National Fuel Gas Code, ANSI Z223.1-1988. If the
optional air-circulating fan is installed, it must be grounded in accordance
with local codes or, in the absence of local codes, with the National
Electrical Code, ANSI/NFPA 70-1987. WithintheStateofMassachusetts
this replace must comply with NFPA-54 Chapter 10.
Introduction .............................................................................. 2
Installation
Installing and Framing the Fireplace.............................. 3
Installing the Gasline...................................................... 4
Vent Installation.............................................................. 4
Installation Requirements .................................. 4
Installing the Remote Switch ............................. 5
Vent Terminations .............................................. 5
Top Vent Runs.............................................................6-7
Side Vent Runs ......................................................... 8-10
Reduced Vertical Installation ....................................... 11
Finishing around the replace
Fireplace Facing .............................................. 11
Mantels and Surrounds ................................... 11
Wiring ......................................................................... 11
Wiring for the Optional Fan Kit......................... 12
Removing and Installing the Door................................ 12
Operation .........................................................................13 - 16
Maintenance ........................................................................... 17
Troubleshooting............................................................ 17
Warranty ................................................................................. 18
Appendix
A. Termination Locations.............................................. 19
B State of Massachusetts / Amendment ..................... 20
Parts ......................................................................... 21
CAUTIONS
Due to its high operating temperatures, the appliance
should be located out of trafc & away from furniture
and draperies.
► Children and adults should be alerted to the hazards
of the high surface temperature, which could cause burns
or clothing ignition.
► Young children should be carefully supervised when
they are in the same room as the appliance.
► Clothing or other ammable materials should not be
placed on or near the appliance.

Page 3
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Installation
Installing The Fireplace Shell
The L38DF-ST replace may be installed in any location that main-
tains proper clearances to air conditioning ducts, electrical wiring and
plumbing. Safety, as well as efciency of operation, must be considered
when selecting the replace location. Try to select a location that does
not interfere with room trafc, has adequate ventilation, and offers an
accessible pathway for Direct Vent installation. Refer to page 4 - Vent
Installation for more information.
The replace dimensions are shown below:
When installing a shelf over the top of the replace, the following guidelines
must be adhered to: For Rear Vent applications the minimum clearance from
the top of the L38DF-ST replace to a shelf is 10". For Top Vent applications,
the minimum clearance are shown in the clearance table. (Minimum
2" clearance must still be maintained around the vent pipes.)
Figure 2. Framing dimensions.
Framing
Top View
Front View Side View
Clearances
These clearances apply to all dimensions except the framed opening,
where the clearance to combustibles is 0". The L38DF-ST clearance to
unprotected combustible walls which are perpendicular to the replace
opening, must not project beyond the shaded area shown in Fig. 24.
For protection against freezing temperatures, it is recommended that
outer walls of the chase be insulated with a vapor barrier. This will reduce
the possibility of a cold-air convection current on the replace.
Figure 1. Fireplace dimensions.
5 1/2”
5 1/4”
17 1/2”
29 1/2” 34”
5” 8”
24”
36 1/2”
1 1/4”
1 1/4”
1 1/4”
1” 37 3/4”
37 3/4”
7”
24”
36 3/8”
8”
5”
26 3/4”
* Clearance from top of the Fireplace to a combustible ceiling within the fireplace
enclosure.
** Refer to Pages, 10 & 11.
17 1/2"
Sides 1"
Floor
0"
Mantle 4"
Top (Top Vent)
L38DF-ST
10"
Top (Rear Vent)
Back 3”
Vent Ring
2"
10
min.
shelf
supplied shield
RHS101
Figure 2a. Framing dimensions. (Top Vent)
Figure 2b. Framing dimensions. (Rear Vent)
33 1/2 min
10
min
PEL Short
90 elbow
shelf
supplied shield
RHS101
40”
41”
23 3/4”
40”
34 1/2”
Both walls Typical. May
not be exactly as shown.
Notes:
Install supplied metal header
above fireplace after unit is in
place. Use supplied hardware
to fasten to framing. Both sides
Typical. Unit may not be exactly
as shown.

Page 4
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Installation
Installing The Gas Line
The gas line must be installed before completing the installation of the
L38DF-ST Fireplace. Natural Gas requires a minimum inlet gas supply
pressure of 5.5" W.C. & a manifold pressure of 3.5" W.C. Propane
Gas requires a minimum inlet gas supply pressure of 11" W.C. & a
manifold pressure of 10" W.C. Provision must also be made for a 1/8"
N.P.T. plugged tapping and be accessible for test gauge connection
immediately upstream of the gas supply controls to the appliance. The
replace gas connection and the main operating gas valve is located
behind the removable trim at the bottom of the unit and need only be
attached to the gas line with an approved tting, as required by the
applicable installation codes.
To access the replace gas connection the main burner must be
removed as shown below in gure 5a.
• Only use gas shut-off valves approved for use by the state, province,
region, or governing body, in which the appliance is being installed, or
as required by the applicable installation codes.
• Flexible gas connectors must not exceed 3 feet in length, unless it is
allowable within applicable installation codes.
Note: After gas line is connected, each appliance connection,
valve and valve train must be checked while under normal
operating pressure with either a liquid solution, or leak
detection device, to locate any source of leak. Tighten any
areas where bubbling appears or leak is detected until
bubbling stops completely or leak is no longer detected.
DO NOT use a flame of any kind to test for leaks.
Figure 5a. Gas line access.
The appliance and its individual shut-off valve must be disconnected
from the 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 shut-off 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).
Vent Installation
This section covers the installation of direct venting and terminations.
Installation Requirements
L38DF-ST model fireplaces are certified for use with Montigo Standard
Series (5" / 8") venting components.
Minimum clearance to combustible construction around the vent pipe
is 1" on all sides, except on horizontal venting where the top of the pipe
must have a clearance of at least 2".
Use only certified Montigo vent components. (Use of other parts will void the
Montigo warranty, and may impede the operation of the fireplace.)
All joints must be secured with a minimum of two screws per joint
Vent terminations must not be recessed in walls or siding
Horizontalrunsmustbesupportedbyaminimumoftwosupportsperhorizontal
run. A minimum of one screw on each side of support is also required
Flex vent sections may be stretched up to 50% of their total length (eg. a
24" section may be stretched to 36")
Maximum horizontal run with no vertical rise is 6 feet.
Flex vent sections over 6 feet must fall within the limits set by the venting
graph and must have a minimum vertical rise of 3 inches per foot of flex.
Solid vent sections may be cut less than half way from the female end
Ventingcomponentscanbeusedinanycombinationofsolid/rigidpipeorflex
pipe and in any orientation (Male connectors can face in any direction)
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Installing The Remote Switch
The L38DF-ST's gas valve is located behind the lower trim, and may
be connected to a wall switch. The valve generates its own power on
a millivolt circuit. Use only low voltage wire, and DO NOT connect
any external power to it.
Note: The switch location must not exceed 30' from the replace.
7”
1 3/4”
2 3/8”
1 3/4”
WARNING:
When this appliance is installed directly on carpeting, tile or
any combustible material other than wood ooring, it must be
installed on a metal or wood panel extending the full width and
depth of the appliance.
Figure 2. Back frame dimensions.
Backframe Min. 37 3/4”

Page 5
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Installation
Installing Terminations with Built-In Frames
Installing Terminations with MSR Frames
12
12
1. Frame the termination opening to 12" x 12".
2. Fasten the termination to the studs using a minimum of 4 screws.
11
11
1. Frame the termination opening to 11" x 11".
2. Fasten the termination to the studs using a minimum of 4
screws.
Installing Terminations with MOSR Frames
1212
12
MOSR
1. Frame the termination opening to 12" x 12".
2. Fasten the MOSR frame to the interior side of the studs using a
minimum of 4 screws.
3. Insert the termination into the MOSR frame as shown here, and
attach by screwing through the four pilot holes in the termination.
MSR
PTO-3F (5"/8")
PTO-3F (5"/8")
PTO-3F (5"/8")
PTKOG (5"/8")
1. Ensure that the two long mounting brackets are facing the bottom
of the termination. (See inset). This will provide more heat protection
at the top of the termination, where temperatures are highest.
2. Attach to the faceplate of the termination using four sheet metal
screws.
Installing Heat Guards over Terminations
Cautions:
Vent terminations can be very hot. If the termination is less
than 7 feet above a public walkway, it should be tted with
a certied Montigo Heat Guard. (Part no. PTKOG).
Do not obstruct, or attempt to conceal, the vent termination.
These actions will affect the operation of the replace,
and may be hazardous.
In heavy snow areas, take extra care to prevent snow
buildup from obstructing the vent termination.
Use Montigo VSS Vinyl Heat Shield when using on
applications with vinyl siding to guard against possible
damage.
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Page 6
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Installation
Top Vent Venting Runs
Example A: (Acceptable Installation)
If the vertical dimension from the hearth is 108" and the horizontal run to
the wall flange of the vent termination is 180", this would be an acceptable
installation.
Example B: (Acceptable Installation)
If the vertical dimension from the hearth is 48" and the horizontal run to
the wall flange of the vent termination is 72", this would be an acceptable
installation.
Example C: (Unacceptable Installation)
If the vertical dimension from the floor of the fireplace is 60" and the
horizontal run to the wall flange of the vent termination is 144", this would
NOT be an acceptable installation.
Figure 7a. L38DF -ST Top Vent Venting Graph
NOTES: All dimension lengths for vertical or horizontal runs are
measured from centre of the vent pipe.
Venting runs must fall within the limits set by the venting
graph (see Figure 9a).
Figure 8. Retracted Installation using a combination of solid and flex
venting. Use the vent graph to determine your allowable
run, then select appropriate components.
42 1/2
A
C
B
RHS8
Installing the Nailing
Flange Extension
Once the replace is placed into the rough framed opening, and the
supplied steel lintel is in place, (see Figure 2), the supplied nailing
extension must be placed along the top edge of the replace, and
securely fastened in place to the metal lintel, and wood framing.
Figure 6c. Installing the Nailing Flange Extension.
Supplied metal flange
extension, Part No. L38087
1 MIN
1 MIN
1 MIN. Both
sides Typical
RHS8 Heat
Shield
Figure 8a. RHS8 Installation. (Install by sliding over vent pipe where it
passes through the combustible construction.
Figure 8b. RHS101 Installation. (Install by sliding over vent pipe where
it passes through the combustible construction.
Framing
Drywall
RHS101 Heat Shield,
Inner Section.
Vent from fireplace
RHS101 Heat Shield,
Outer Section.
Termination

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L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Installation
Figure 9. Horizontal flex installation with MIN vertical rise.
B. Vertical (Through-The-Roof) Installations
Vertical rise >12' can be reduced (on applicable models).
Vertical Terminations must be installed:
•minimum 2' (two feet) above the highest point where
vent passes through the roof.
•minimum 6' (six feet) from a mechanical air inlet
•minimum 18" (1 1/2 feet) from a parapet wall.
Figure 10. Straight, vertical venting showing required PXT-10 adaptor
(supplied with the PVTK-1 termination).
* For venting MIN 1" clearance to all vertical combustibles,
MIN 2" to all horizontal combustibles.
RHS8
5" / 8" Venting
A - Termination PVTK-1
B - Flex Sections PFL-1 (12" Section)
PFL-2 (24" Section)
PFL-3 (36" Section)
PFL-4 (48" Section)
C - Rigid Sections PEXT-1 (12" m/f Section)
PEXT-2 (24" m/f Section)
PEXT-3 (36" m/f Section)
PEXT-4 (48" m/f Section)
D - Support Ring
& Plate
PSPXT-8
E - Firestop PS-8
F - Roof Flashing PRF-7 (1/12 - 7/12 pt.)
PRF-7 (7/12 - 12/12 pt.)
G - Adaptor / Vent
Reducer
PVA5487 (5"/8" to 4"/7")
 Maximum vent height is: 32 feet above replace.
Note: Flame characteristics will change if the maximum vent height
is used.
 Minimum clearances 2" from vent to all combustible materials must
be maintained.
A maximum of two offsets (each offset has two 90° bends) may be
made and shall not exceed total length of 25% of the vertical vent
height, when measured center to center of piping.
Example: Typical vent installation.
20' vertical vent
2 - 2' offsets required
25% of 20' = 5' max. offset allowed
This venting configuration meets requirements.
PEXT

Page 8
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Side Vent Venting Requirements
If your installation requires more than 12" of horizontal venting, some
vertical lift is required. Use the vent graph below to determine an
acceptable vent run. Unacceptable venting can affect the replace's
performance.
 the maximum horizontal vent run is 16 feet
The Venting Graph
Measure the vertical height from the replace hearth to the centre of
the termination and the horizontal run from the from the replace ue
collar to the wall ange of the termination. Plot on the Venting Graph
(Fig. 6) with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
Example A: (Acceptable Installation)
If the vertical dimension from the hearth is 82", and the hori-
zontal run to the wall ange of the vent termination is 156", this
would be an acceptable installation.
Example B: (Acceptable Installation)
If the vertical dimension from the hearth is 72" and the horizontal
run to the wall flange of the vent termination is 36", this would be
an acceptable installation.
Example C: (Unacceptable Installation)
If the vertical dimension from the floor of the fireplace is 48" and
the horizontal run to the wall flange of the vent termination is
108", this would NOT be an acceptable installation.
Figure 13a. L38DF -ST Side Vent Venting Graph
NOTES: All dimension lengths for vertical or horizontal runs are
measured from centre of the vent pipe.
Venting runs must fall within the limits set by the venting
graph (see Figure 9a).
Installation
26 1/2
A
C
B
Figure 11. Vertical venting with 1 offset (1 offset= two 90° bends).
Figure 12. Vertical venting with 2 offsets (1 offset= two 90° bends).
* For venting with four 90° a restrictor may need to be used. (PEXT
5/8 Vent).
Caution:
The Installation shown in Figure 12., only 5/8 (PEXT)
Vent to be used.
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Page 9
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Short Congurations:
For installations straight through the wall, use an PTO-3/-3F termina-
tion and PXT-5 or PXT-10 to achieve the desired length. The maxi-
mum horizontal vent run with no vertical lift is 12". See Figure 7.
Figure 14. Short horizontal installation.
Heat Shields
Due to high ue temperatures, the heat shield (RHS101) must be
used on all installations straight through the wall, at the point
where the vent pipe connects to the termination. With the heat shield,
vent clearances can be maintained at 1". The heat shield is not
included with the replace.
Example:
A 10' section of rigid pipe and a 90° elbow may be used in conjunc-
tion with a 3 ft. flex section (PFL-3) will, when extended in a chase,
allow for a maximum horizontal run of twelve and one-half feet from
the centre of the fireplace to outside wall and a minimum of 7'6" when
retracted in opposite direction. (See Figure 16.)
Long Vent Runs:
For longer or more complex vent runs, vertical lift is required. First
ensure that the planned run is acceptable using the Vent Graph. Plan
out the required components using the chart above. You may be able
to use fewer components using the chart on Page 8
Figure 16. Extended horizontal installation using a combination of
rigid and flex venting.
Figure 15. Heat Shield for short horizontal installation. Install by slid-
ing over the vent pipe where it connects to the termination.
To install the heat shield, slide one section over the vent pipe on the
inside of the wall opening, with the circular portion inside the wall
cavity. Screw the shield in place over the wall opening. Install the
second section on the outside of the wall opening sliding the circular
portion into the wall opening. Refer to Figure 15.
Horizontal Vent Installation
Vent systems that terminate through a wall may comprise up to
seven different components:
A - Termination PTO-3
PTO-3F
B - Stucco Kits MSR (stucco frame)
MOSR (stucco can)
D - Flex sections PFL-1 (12" section)
PFL-2 (24" section)
PFL-3 (36" section)
PFL-4 (48" section)
E - Rigid sections PEXT-1 (12" section)
PEXT-2 (24" section)
PEXT-3 (36" section)
PEXT-4 (48" section)
F - Extensions PXT- 5 (5" section)
PXT-10 (10" section)
G - 90° elbow PEL-90F/F
PEL-90M/M
H - Heat Shield RHS101 ( for 5"/8" venting)
I - Heat Shield RHS 8 (for Top Venting)
"D" flex sections and "E" solid sections may be used in conjunction
with one another to obtain different possible horizontal length instal-
lations. NOTE: Flex section must not exceed maximum horizontal
length of 3 feet, and for this application the top clearance is to the
ceiling.
Installation
RHS8

Page 10
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Figure 17b. Vertical venting with 2 offsets (1 offset= two 90° bends).
Figure 17a. Vertical venting with 1 offset (1 offset= two 90° bends).
Installation
Vertical Vent Installations
Vertical Installations with a rise greater than 12' can be reduced
from 5/8 to 4/7 venting.
•minimum 2' (two feet) above the highest point where
vent passes through the roof.
•minimum 6' (six feet) from a mechanical air inlet
•minimum 18" (1 1/2 feet) from a parapet wall.
 Maximum vent height is 30 feet above replace.
Note: Flame characteristics will change if the maximum vent
height is used.
Minimum clearance to combustible construction around
the vent pipe is 1" on all sides must be maintained, except on
horizontal venting where the top of the pipe must have a clear-
ance of at least 2".
2. Offset Vertical Installations
A maximum oftwo offsets (each offset has two 90° bends) may
be made if the length of the offsets does not exceed 25% of the
vertical vent height, when measured center to center of piping.
Example: Typical vent installation.
30' vertical vent
2 - 2' offsets required
25% of 30' = 7-1/2' max. offset allowed
This venting configuration meets requirements.
1. Straight Vertical Installation
Figure 17. Straight, vertical venting.
PEXT
Solid Section
PEXT Solid
Section

Page 11
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Installation
Finishing Around the Fireplace
Combustible mantels and mouldings may be safely installed over the
top and on the front of the replace provided that they do not project
beyond shaded area shown in Figure 24. Side wall clearances are 3".
Combustible surrounds may be installed with 3" clearance to the side
of the replace as shown in Figure 25.
Fireplace Facing
When selecting the nish material for your replace, it is important to
remember the following: THE OPENING MUST NOT BE OBSTRUCTED
IN ANY WAY - to do so restricts the air supply for the control
compartments and heat exchanger it also prevents access for
servicing controls.
The face of the replace may be painted to match the room decor,
provided you use a heat-resistant paint. Decorative facing must not
extend past the replace opening at all, because it will interfere with
the access to retainers for removal of glass door.
Figure 24. Combustible mantles and facings.
Horizontal Run (in)
N
on-Combustible
F
acing Material
Non-combustible Header
(Supplied by Montigo)
Drywa
ll
/ S
h
eetroc
k
6”
6”
3”
Mantels & Surrounds
NOTE: National Canadian Gas Association mantel test requirements
are for re hazard prevention to combustible materials.
New technology, to meet consumer and government demands for the
wise use of energy, has prompted us to manufacture many models of
replaces which are hot, fuel and energy efcient.
Please be aware; temperatures over the mantel will rise above normal
room temperature and walls above replace may be hot to touch.
Warning:
When covering the upper metal portion of the replace with a non-
combustible material Please Note: The decorative facing materials
may be subject to temperatures in excess of 250° F. This should be
considered when selecting facing materials.
We recommend careful consideration be given to the effects of elevated
mantel temperatures which may be in excess of product design, for
example: candles, plastic or pictures. This can cause melting, deformation,
discoloration or premature failure of T.V. and radio components.
Painting:
Special care is recommended by the Master Painters and Decorators
Association, when painting the replace surrounds, to select and apply
a quality Alkyd sealer prior to the applying of latex paints. This is to
prevent leaching of water from evaporation and causing a brownish
staining effect to paint over coats.
Figure 25. Combustible surrounds, (Both Sides Typical).
Non-Combustible
Facing Material
Steel Stud construction
allowable within this area
Top of
fireplace
Wiring
Gas Control and Pilot Wiring L38DF-ST-I
Figure 26. Wiring for the L38DF-ST-I with Honeywell gas control and pilot.
Honeywell (Q3450)
Pilot Assembly
Pilot Electrical
Harness Connector
Honeywell Gas
Control (SV9501M)
Gas Control
Connector
Junction Box
115VAC
24VAC
40 VA
Transformer
Black
White
Green
Gnd Screw
Wall Switch
Fan Plug
Receptacle
Wiring for the optional Fan Kit
All L38DF-ST replaces may be equipped with optional fan kits for
circulating heat into the living space.
Installations in Canada which employ the fans must be electrically
grounded in accordance with CSA C22.1 Canadian Electrical Code
Part 1 and/or Local Codes.
Installations in the USA which employ the fans must be grounded in
accordance with local codes or, in the absence of local codes, with the
National Electrical Code, ANSI/NFPA 70-1987.
For more information see the Fan Kit Installation Guide included with
the fan kit.

Page 12
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Installation
Figure 27b. Wiring schematic for optional fans.
Removing and Installing
the Doors
Removing the doors:
The doors are held in place by a lip on the top of the metal frame and two
buckles at the bottom. Release the buckles and lift the door carefully up
and away from the front of the replace. See gures 28a and 28b.
Installing the doors:
Hook the top edge of the door frame into place. Lower and rest the door
frame in place and fasten the buckles. See gures 28a and 28b.
Figure 28b. Removing and installing the glass doors. (Both Sides
Typical)
Figure 28a. Removing and installing the glass doors. (Both Sides
Typical)
Cautions:
DO NOT OPERATE THIS FIREPLACE WITHOUT THE
GLASS DOOR OR WITH A BROKEN GLASS DOOR.
p
Cautions:
5/1/60 Supply
G L1 L2
NOTE: If any of the original wire supplied with the appliance is replaced, it
must be replaced with the same type, or its equivalent.
Figure 27a. Wiring for optional fans.
G
L2-WH
L1-BLK
p g
Quick Connect
lu to motor
Installing the Glass Beads and
Optional Rocks
Beads
The L38DF-ST is supplied with three bags of Designer Glass beads.
Place them randomly across the pan, surrounding the burners as
shown in Figure 28c.
Optional River Rocks
The L38DF-ST has optional cultured rocks which mimic real stone,
yet designed to withstand a high temperature environments. These
may be spaced at random, or in a visual patter of your preference.
Ensure the rocks or beads do not cover the Burners.
Figure 28c.Installation with glass beads .
L38DF-ST

Page 13
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
WARNING:If you do not follow these instructions exactly, a re or explosion may
result causing property damage, personal injury or loss of life.
If you cannot reach your gas supplier, call the Fire
Department.
C. Use only your hand to push in or turn the gas control knob.
Never use tools. If the knob will not push in or turn by hand,
don't try to repair it, call a qualified service technician. Force
or attempt to repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect the
appliance and to replace any part of the control system, and
any gas control which has been under water.
p
A. This appliance has a pilot which must be lighted by hand.
When lighting the pilot, follow these instructions exactly.
B. BEFORE LIGHTING smell all around the appliance area for
gas. Be sure to smell next to the floor because some gas is
heavier than air and will settle on the floor.
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 neighbour's
phone. Follow the gas supplier's instructions.
p
p
p
To Turn Off Gas To Appliance:
Operation - Model L38DF-ST
3. Push in gas control knob slightly and turn clockwise to
"Off". Do not force.
4. Flip up the lower trim.
1. Turn off remote switch.
2. Flip down the lower trim.
1. STOP! Read the safety information above on this label.
2. Flip down the lower trims.
3. Push in gas control knob and turn clockwise to "OFF."
4. Wait five (5) minutes to clear out any gas. Smell for gas,
including near the floor. If you then smell gas, STOP! Follow
"B" in the safety information above on this label. If you don't
smell gas, go to the next step.
5. Locate pilot burner (See illustration at right.) and follow steps
below.
6. Turn knob on gas control counter clockwise to
"PILOT."
7. Push in gas control knob completely and hold. Light with Piezo
Igniter button. Continue to hold the control knob in for about
(1) minute after the pilot is lit. Release the knob and it will pop
back up. Pilot should remain lit. If it goes out repeat steps 3
through 8.
If knob does not pop up when released. Stop and
immediately call your service technician or gas
supplier.
If the pilot will not stay lit after several tries, turn the gas
control knob to "OFF" and call your service technician
or gas supplier.
8. Pushin gascontrol knobandturn counter-
clockwise to "ON."
9. Flip up the lower trim.
10. Turn on remote switch to ignite fire.
p
p
Lighting Instructions:
L38DF-ST
with Continuous Pilot
For Your Safety - READ BEFORE LIGHTING:
NOTE: Gas control knob cannot be turned from
"PILOT" to "OFF" unless knob is pushed
in slightly. Do not force.

Page 14
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
For Your Safety - READ BEFORE LIGHTING:
To Turn Off Gas To Appliance:
Lighting Instructions:
If you cannot reach your gas supplier, call the Fire
Department.
C. Use only your hand to push in or turn the gas control knob.
Never use tools. If the knob will not push in or turn by
hand, don't try to repair it, call a qualified service technician.
Force or attempt to repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect
the appliance and to replace any part of the control system,
and any gas control which has been under water.
p
A. This appliance is equipped with an ignition system that
lights the pilot burner automatically. Do not attempt to
light the pilot by hand.
B. BEFORE LIGHTING smell all around the appliance area for
gas. Be sure to smell next to the floor because some gas
is heavier than air and will settle on the floor.
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 neighbour's
phone. Follow the gas supplier's instructions.
p
p
p
1. Turn off remote switch.
2. Flip down the lower trim.
3. Turn the switch on the gas control to "Off".
4. Flip up the trim.
1. STOP! Read the safety information above on this label.
2. Flip down the lower trims.
3. Turn switch on the gas control to OFF".
4. Wait 5 minutes to clear out any gas. If you smell gas,
STOP! Follow "B" in the safety information above on this
label. If you don't smell gas, go to the next step.
5. Turn switch on the gas control to "ON". NOTE: This unit is
equipped with an ignition system that lights the pilot burner
automatically. Do not attempt to light the pilot by hand.
6. Turn on wall switch.
7. Flip up the lower trim.
8. If the fireplace does not operate, follow the instructions "To
Turn Off Gas To Appliance" and call your service technician
or gas supplier.
with Honeywell Electronic Ignition
Operation - Model L38DF-ST-I
L38DF-ST-I
Gas
Inlet
Gas Control Switch
Shown in "On" Position
WARNING:If you do not follow these instructions exactly, a re or explosion may
result causing property damage, personal injury or loss of life.

Page 15
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
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 neighbour's
phone. Follow the gas supplier's instructions.
■If you cannot reach your gas supplier, call the Fire
Department.
A. This appliance is equipped with an ignition system that allows
for both continuous pilot operation as well as an electronic
ignitionthatlightsthepilotburnerautomatically.Donotattempt
to light the pilot by hand.
B. BEFORE LIGHTING smell all around the appliance area for
gas. Be sure to smell next to the floor because some gas is
heavier than air and will settle on the floor.
1. Turn off remote switch.
2. Flip down the lower trim.
3. Turn the switch on the Control Module to "Continuous Pilot
Off".
4. Flip up the trim.
with American Flame Electronic Ignition
B-Series BF-A
ADJ.
AUX Learn
Remote/Off
Continuous
Pilot
Off/On
S I
IPIPOWER
6VAC 200mA
AC ADAPTOR
Wall Switch (SWI)
Brown
Brown
Black
White
Green White
Orange
Pilot
Main
Manual
Hi/Lo
Main Gas InputMain Gas Output
White (Sensor)
Orange (Igniter)
Control
Module
Emergency
Battery
Power
(4 x AA)
Pilot Assembly
Red
Black
Red
Black
Optional
L-Series DF-I
Lighting Instructions:
To Turn Off Gas To Appliance:
1. STOP! Read the safety information above on this label.
2. Flip down the lower trims.
3. If the switch on the control module is set to "Continuous Pilot
Off" then the pilot will light when the appliance is turned on
by the remote switch. When switched to "Continuous Pilot
On" then the control module will attempt to light the pilot until
it detects that the pilot has been successfully lit.
4. With the control module set to "Continuous Pilot Off" wait 5
minutes to clear out any gas. If you smell gas, STOP! Follow
"B" in the safety information above on this label. If you don't
smell gas, go to the next step.
5. Turn switch on the control module to "Continuous
Pilot On" This will initiate the lighting of the pilot.
NOTE: This unit is equipped with an ignition system that lights
the pilot burner automatically. Do not attempt to light the
pilot by hand.
6. Turn on wall switch.
7. Flip up the lower trim.
8. If the fireplace does not operate, follow the instructions "To
Turn Off Gas To Appliance" and call your service technician
or gas supplier.
9. If you wish to operate the Fireplace without the Continous Pilot
simply turn the switch on the control module to "Continuous
Pilot Off" and follow instructions 6-8.
For Your Safety - READ BEFORE LIGHTING:
with American Flame Electronic Ignition
Operation - Model L38DF-ST-A
WARNING: If you do not follow these instructions exactly, a re or explosion may
result causing property damage, personal injury or loss of life.
L38DF-ST-A

Page 16
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Maintenance
WARNING:
Do not attempt to clean glass when hot.
Do not clean glass with abrasive materials as any glass
etching may cause premature glass failure.
CAUTIONS
Fireplace gas control must be in the “OFF” position
and pilot and main burners extinguished when cleaning
appliance with a vacuum.
Doors and logs can get very hot. Handle only when
cool.
p
p
General
Have the replace and installation inspected yearly.Theinspection
must include, but is not limited to, the following:
• A visual check of the entire vent system and termination.
• An inspection of the explosion relief appers and the door
gasketing to ensure a proper seal.
• An inspection of the burner, venturi, and primary air openings.
• An inspection of the gas valve, gas components, and pilot ame.
For your convenience a 1/8" manifold pressure tap is supplied
on the gas valve for a test gauge connection. See Figure 32.
• Inspection of all optional equipment; fans, thermostats, etc.
For Natural Gas this appliance requires a minimum inlet pressure
of 5.5" W.C. and a manifold pressure of 3.5" W.C.
For Propane Gas this appliance requires a minimum inlet pressure
of 11" W.C. and a manifold pressure of 10" W.C.
Always keep the replace area clear and free of combustible materials,
as well as gasoline and other ammable vapors and liquids.
Donotusethisapplianceifanyparthasbeenunderwater. Immediately
call a qualied service technician to inspect the appliance and to
replace any part of the control system and any gas control which
has been under water.
p
p
p
p
p
Operation
Lighting Instructions
See pages 13 to 15.
Burner Adjustment
The L38DF-ST is equipped with an adjustable burner, allowing you to
raise or lower the ames. To adjust the ames, locate the black knob
marked 'Hi-Lo', in the centre of the gas control valve (See Figure 32).
The front burners are not adjustable.
To raise the ame height, turn the black knob (located behind the
lower trim) counter-clockwise.
To lower the ame height, turn clockwise.
p
p
Figure 32. 'Hi-Lo' Adjustment on the L38DF-ST's gas valve.
Cleaning
When the replace is rst activated, there may be some smoking and
a visible lm may be left on the glass. This is a normal condition, and is
the result of burning of protective coatings on new metal.
Glass must be cleaned periodically to remove any lm (which is a
normal by-product of combustion) which may be visible. Film can
easily be removed by removing the door, as shown on page 12.
Handle the door carefully, and clean it with non-abrasive glass
cleaners. One of the most effective products is Kel Kem.
Silicone seals on inner door during initial ring will "off gas", leaving
a visual deposit of a white substance on combustion chamber walls.
This can easily be removed using normal household products.
Use a vacuum cleaner or whisk broom to keep the control
compartment, burner, and rebox free from dust and lint.
Linear Burners may be cleaned periodically with a vacuum to remove
soot or other contaminates.
p
p
p
p
Note: L38DF-ST-I models (electronic ignition) do not
feature hi/lo adjustment.
'Hi-Lo' Adjustment Knob

Page 17
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Maintenance
Gas Control Valve Troubleshooting L38DF-ST-I
Manifold Pressure
Test Connection
Pilot Adjustment Screw
Inlet
Pressure
Power
Generator
Wall Switch
Figure 33. Sit Nova 820 gas valve.
Pilot Burner Adjustment
1. Locate Pilot Adjustment Screw. (See gure 33.)
2. Adjust pilot screw to provide properly sized ame as shown in
gure 34).
3. After installing or servicing, leak test with a soap solution with
main burner on. Coat pipe and tubing joints, gasket etc. with soap
solution. Bubbles indicate leaks. Tighten any areas where the
bubbles appear until the bubbling stops completely.
Figure 34. Pilot Burner.
Troubleshooting
The following is a troubleshooting chart of possible problems:
PROBLEM CORRECTIVE ACTION
Noisy Pilot Flame Locate pilot adjustement screw on
gas control valve. Flame is decreased by
turning adjustment screw clockwise.
Pilot won’t ignite Disconnect remote wires and try to
light pilot. If pilot now works, remote
connections are faulty. Check wiring
diagram gure 33.
Main burner will 1. Check wiring (see gure 33).
not light 2. Check wall switch for proper con-
nection.
If your replace still does not operate correctly, consult your dealer or
the manufacturer.
All service and repairs should be performed by a qualied
agency.
All spare parts, optional fans, and optional trim nishes are available
from your local dealer or the manufacturer.

Page 18
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
The Warranty
The Companies warrants the Montigo Gas Appliance to be free from defects in materials and workmanship at the time of manufacture. On the Montigo, there is a
ten-year warranty on the firebox and its components, a five-year warranty on the main burner and pilot burner, and a one-year warranty on the gas control valve
and fibre logs. Glass, plated/painted finishes, and refractory lining are exempt.
Remedy And Exclusions
The coverage of this Warranty is limited to all components of the Gas Appliance manufactured by The Companies.
This Warranty only covers Montigo Gas Appliances installed in the United States or Canada.
If the components of the Gas Appliance covered by this Warranty are found to be defective within the time frame stated (see The Companies right of investigation
outlined below). The Companies will, at its option, replace or repair defective components of the Gas Appliance manufactured by The Companies at no charge,
and will also pay for reasonable labour costs incurred in replacing or repairing components. If repair or replacement is not commercially practical, The Companies
will, at its option, refund the purchase price of the Montigo Gas Appliance.
This Warranty covers only parts and labour as provided above. In no case shall The Companies be responsible for materials, components, or construction which
are not manufactured or supplied by The Companies, or for the labour necessary to install, repair or remove such materials, components or construction. All
replacement or repair components will be shipped F.O.B. the nearest The Companies factory.
Qualifications To The Warranty
The Gas Appliance Warranty outlined above is further subject to the following qualifications:
(1) The Gas Appliance must be installed in accordance with The Companies installation instructions and local building codes. The Warranty on this Montigo
Gas Appliance covers only the component parts manufactured by The Companies. The use of components manufactured by others with this Montigo Gas
Appliance could create serious safety hazards, may result in the denial of certification by recognized national safety agencies, and could be in violation of local
building codes. This warranty does not cover any damages occurring from the use of any components not manufactured or supplied by The Companies
(2) The Montigo Gas Appliance must be subjected to normal use. The Gas Appliances are designed to burn gas only. Burning conventional fireplace fuels such
as wood, coal or any other solid fuel will cause damage to the Gas Appliance, will produce excessive temperatures and will result in a fire hazard.
Limitations On Liability
It is expressly agreed and understood that The Companies sole obligation, and purchaser's exclusive remedy under this Warranty, under any other warranty,
expressed or implied, or in contract, tort or otherwise, shall be limited to replacement, repair, or refund, as specified above.
In no event shall The Companies be responsible for any incidental or consequential damages caused by defects in its products, whether such damage occurs
or is discovered before or after replacement or repair, and whether or not such damage is caused by The Companies negligence. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. The duration of any implied warranty
with respect to this Montigo Gas Appliance is limited to the duration of the foregoing warranty. Some states do not allow limitation on how long an implied warranty
lasts, so the above may not apply to you.
Investigation Of Claims Against Warranty
The Companies reserves the right to investigate any and all claims against this Warranty and to decide upon method of settlement.
The Companies Are Not Responsible For Work Done Without Written Consent
The Companies shall in no event be responsible for any warranty work done without first obtaining The Companies written consent.
Dealers Have No Authority To Alter This Warranty
The Companies employees and dealers have no authority to make any warranties nor to authorize any remedies in addition to or inconsistent with those stated
above.
How To Register A Claim Against Warranty
In order for any claim under this Warranty to be valid, The Companies must be notified of the claimed defect in writing or by telephone, as soon as reasonably
possible after the defect is discovered. Claims against this Warranty in writing should include the date of installation, and a description of the defect.
Other Rights
This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
NOTE: The Companies as stated above refer to - Canadian Heating Products Inc. and/or Montigo Del Ray Corp.
Canadian Heating Products Inc. and/or Montigo DelRay Corp. reserves the right to make changes at any time, without
notice, in design, materials, specifications, prices and also to discontinue colors, styles and products.
Warranty

Page 19
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Appendix A - Termination Locations
A= clearance to the termination frame above grade, veranda, porch, deck,
or balcony [16 inches (41 cm) minimum]
B= clearance to door, or sides and top of window, that may be opened [16
inches (41 cm) minimum for appliances ≤100 000 BTU/H (30kW)]
C = clearance to bottom of window that may be opened horizontally [36 inches
(92 cm) minimum for appliances ≤100 000 BTU/H (30kW)]
D= no clearance to permanently closed window when installed with approved
glass penetration termination
E = clearance to permanently closed window [16 inches 41 cm recommended
to prevent condensation on window]
F = vertical clearance to ventilated soft located above the termination within a
horizontal distance of 2 feet (61 cm) from the centreline of the termination
[22 inches (56 cm) minimum]
G= clearance to unventilated soffit [16 inches
(41 cm) minimum to non-combustibles]
[22 inches (56 cm) minimum to combustibles]
H = clearance to outside corner [9 inches (23 cm) minimum]
I = clearance to inside corner [12 inches (31 cm) minimum]
J= * not to be installed above a meter/regulator assembly within
40" (103 cm) horizontally from the centreline of the regulator
K = clearance to service regulator vent outlet [3 feet minimum in the United
States] [*6 feet (1.8 m) minimum in Canada]
L = clearance to non-mechanical air supply inlet to building or the combustion
air inlet to any other appliance [16 inches (41 cm) minimum for appliances
≤100 000 BTU/H (30kW)]
M = clearance to mechanical air supply inlet [*6 feet (1.8 m) minimum]
N= †clearance above paved sidewalk or a paved driveway located on public
property [*7 feet (2.1 m) minimum]
P= clearance under veranda, porch, deck, or balcony
[16 inches (41 cm) minimum‡ to non-combustibles]
[22 inches (56 cm) minimum‡ to combustibles]
Q = clearance above a roof [24 inches (61 cm) minimum]
R= clearance to adjacent walls and neighboring buildings
[18 inches (46 cm) minimum]
S= c l e a r a n c e f r o m c o r n e r i n r e c e s s e d l o c a t i o n
[12 inches (31 cm) minimum]
T= maximum depth in recessed location
[48 inches (122 cm) minimum]
U= minimum width for back wall of recessed location
[24 inches (61 cm) minimum]
V= no horizontal clearance between the frames of two terminations that
are level.
W= horizontal clearance between the frames of two terminations that are
not level. [36 inches (92 cm) minimum]
†a vent shall not terminate directly above a sidewalk or paved driveway
which is located between two single family dwellings and serves both
dwellings
‡only permitted if veranda, porch, deck, or balcony has an open side that
is equal to or greater than the depth of the enclosed area
* as specied in CGA B149 Installation Codes. Note: local Codes or
Regulations may require different clearance.

Page 20
L38DF-ST See-thru Gas Fireplace
Part No. XG0810
f i r e f e a t u r e
Amendment
(Gas Fireplace / Equipment sold in the State of Massachusetts)
5.08: Modications to NFPA-54, Chapter 10
(1) Revise NFPA-54 section 10.5.4.2 by adding a second exception as follows:
Existing chimneys shall be permitted to have their use continued when a gas conversion burner is installed, and shall be equipped with a manually reset device
that will automatically shut off the gas to the burner in the event of a sustained back-draft.
(2) Revise 10.8.3 by adding the following additional requirements:
(a) For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes,
including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above nished grade in
the area of the venting, including but not limited to decks and porches, the following requirements shall be satised:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal vented gas fueled equip-
ment, the installing plumber or gas tter shall observe that a hard wired carbon monoxide detector with an alarm and battery back-up is installed on the oor
level where the gas equipment is to be installed. In addition, the installing plumber or gas tter shall observe that a battery operated or hard wired carbon
monoxide detector with an alarm is installed on each additional level of the dwelling, building or structure served by the side wall horizontal vented gas fueled
equipment. It shall be the responsibility of the property owner to secure the services of qualied licensed professionals for the installation of hard wired carbon
monoxide detectors
a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard wired carbon monoxide detector with
alarm and battery back-up may be installed on the next adjacent oor level.
b. In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner shall have a period of thirty (30) days
to comply with the above requirements; provided, however, that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm
shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisions
shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certied.
3. SIGNAGE. A metal or plastic identication plate shall be permanently mounted to the exterior of the building at a minimum height of eight (8) feet
above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print
size no less than one-half (1/2) inch in size, “GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.
4. INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless,
upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:
1. The equipment listed in Chapter 10 entitled “Equipment Not Required To Be Vented” in the most current edition of NFPA 54 as adopted by the
Board; and
2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from the dwelling, building or struc-
ture used in whole or in part for residential purposes.
(c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED. When the manufacturer of Product
Approved side wall horizontally vented gas equipment provides a venting system design or venting system components with the equipment, the instructions
provided by the manufacturer for installation of the equipment and the venting system shall include:
1. Detailed instructions for the installation of the venting system design or the venting system components; and
2. A complete parts list for the venting system design or venting system.
(d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the manufacturer of a Prod-
uct Approved side wall horizontally vented gas fueled equipment does not provide the parts for venting the ue gases, but identies “special venting systems”,
the following requirements shall be satised by the manufacturer:
1. The referenced “special venting system” instructions shall be included with the appliance or equipment installation instructions; and
2. The “special venting systems” shall be Product Approved by the Board, and the instructions for that system shall include a parts list and
detailed installation instructions.
(e) A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all venting instructions, all parts lists for
venting instructions, and/or all venting design instructions shall remain with the appliance or equipment at the completion of the installation.
(3) After NFPA-54 section 10.10.4.2 add a new section 10.10.4.3 as follows:
When more than four gas appliances are to be vented through a common gas vent or common horizontal vent manifold, a plan of the proposed vent installation
shall be submitted to the Inspector and the serving gas supplier for review and approval.
Extraction from: Massachusets Rules and Regulations
5.00: Amendments To 2002 Edition Of ANSI Z223.1-NFPA-54
Appendix B - State of Massachusetts