MHSC CDV7 Operating instructions

CDV7 SERIES
Direct Vent Gas Fireplace
Models: CDVR36NV7CE
Installation and Operating
Instructions
WARNINGS
If the information in these instructions
are not followed exactly, a fire
or explosion may result causing
property damage, personal injury or
loss of life.
– Do not store or use gasoline or other
flammable vapors and 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 fire department.
– Installation and service must be performed
by a qualified installer, service agency or
the gas supplier.
WARNING: Improper installation, adjustment,
alteration, services or maintenance can cause
injury or property damage. Refer to this manual.
For assistance or additional information
consult a qualified installer, service agency or
the gas supplier.
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 certified kit is used.
DUE TO HIGH TEMPERATURES, THE APPLIANCE
SHOULD BE LOCATED OUT OF TRAFFIC AND
AWAY FROM FURNITURE AND DRAPERIES.
692027
CHILDREN AND
ADULTS SHOULD BE ALERTED
CDV7 coverOF HIGH SURFACE
TO THE HAZARDS
TEMPERATURE AND SHOULD STAY AWAY TO
AVOID BURNS OR CLOTHING IGNITION.
YOUNG CHILDREN SHOULD BE SUPERVISED
WHEN THEY ARE IN THE SAME ROOM AS THE
APPLIANCE.
CLOTHING OR OTHER FLAMMABLE MATERIAL
SHOULD NOT BE PLACED ON OR NEAR THE
APPLIANCE.
Keep the room area clear and free
from combustible materials, gasoline,
and other flammable vapors and
liquids.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
69D2027 5/10 Rev. 2
CDV7 Series Gas Fireplace
CONTENTS
PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING APPLIANCE.
Thank you and congratulations on your purchase of a MHSC fireplace.
IMPORTANT: Read all instructions and warnings carefully before starting installation.
Failure to follow these instructions fully may result in a possible fire hazard and will void the warranty.
Important Safety Information..................................... 3
Glass Removal........................................................... 20
Product Specifications............................................... 5
High Elevations....................................................... 5
Gas Pressures........................................................ 5
Gas Specifications, Orifice Sizes............................ 5
Fireplace & Framing Dimensions............................ 6
Log Placement........................................................... 20
Rockwool Placement............................................ 20
Log Placement...................................................... 21
Lava Rock and Ember Placement........................ 21
Pre-Installation Information
Before You Start...................................................... 7
Fireplace Framing .................................................. 7
Fireplace Location................................................... 8
Clearances................................................................... 9
Securing Fireplace to Floor or Framing.................. 10
Finishing Material.................................................. 10
Venting Installation.....................................................11
General Venting
Termination Location...................................... 12
Termination Clearances.................................. 13
Assembling Vent Pipes................................... 13
How to Use the Vent Graph............................ 14
Vent Pipe Clearances..................................... 15
Rear Vent Applications & Installation.................... 15
Fireplace Installation................................................. 17
Check Gas Type................................................... 17
Installing Gas Piping............................................. 17
Check Gas Pressure................................................. 18
Electrical Installation................................................ 18
Remote Wall Switch.............................................. 19
Optional DC Remote Systems.............................. 19
Operating Instructions - Millivolt............................. 22
What To Do If You Smell Gas................................ 22
Lighting Pilot for the First Time............................. 23
Lighting Pilot......................................................... 23
Lighting Burner...................................................... 24
To Turn Off Gas..................................................... 24
Cleaning and Maintenance....................................... 25
Burner, Pilot and Control Compartment................ 25
Pilot Flame............................................................ 25
Burner Flame........................................................ 25
Vent System.......................................................... 26
Glass Door............................................................ 26
Logs...................................................................... 26
Rock Wool . .......................................................... 26
Troubleshooting........................................................ 27
Replacement Parts.................................................... 29
Firebox Components............................................. 29
Standing Pilot - Millivolt Control............................ 31
Logs...................................................................... 33
Vent Components................................................. 34
Warranty..................................................................... 35
69D2027
CDV7 Series Gas Fireplace
IMPORTANT SAFETY INFORMATION
OWNER
Please leave these instructions with the appliance.
Please retain these instructions for future reference.
WARNING
INSTALLER
• Read this owner’s manual carefully and completely before trying to assemble, operate,
•
•
or service this fireplace.
Any change to this fireplace or its controls can be dangerous.
Improper installation or use of this fireplace can cause serious injury or death from
fire, burns, explosions, electrical shock and carbon monoxide poisoning.
This fireplace is a vented product. This fireplace must
be properly installed by a qualified service person. The
glass door must be properly seated and sealed. If this
unit is not properly installed by a qualified service person
with glass door properly seated and sealed, combustion
leakage can occur.
CARBON MONOXIDE POISONING: Early signs of
carbon monoxide poisoning are similar to the flu with
headaches, dizziness and/or nausea. If you have these
signs, the fireplace may not have been installed properly.
Get fresh air at once! Have the fireplace inspected and
serviced by a qualified 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 influence 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 fireplace.
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 certified
kit is used.
2. 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.
3. Never install the fireplace
• in a recreational vehicle
• where curtains, furniture, clothing, or other flammable objects are less than 42" (107 cm) from
the front, top, or sides of the fireplace
69D2027
• in high traffic areas
• in windy or drafty areas
4. This fireplace reaches high temperatures. Keep children
and adults away from hot surfaces to avoid burns or
clothing ignition. Fireplace will remain hot for a time after
shutdown. Allow surfaces to cool before touching.
5. Young children should be carefully supervised when
they are in the same room as the appliance. Toddlers,
young children and others may be susceptible to accidental contact burns. A physical barrier is recommended
if there are at risk individuals in the house. To restrict
access to a fireplace or stove, install an adjustable
safety gate to keep toddlers, young children and other
at risk individuals out of the room and away from hot
surfaces.
6. Do not modify fireplace under any circumstances. Any
parts removed for servicing must be replaced prior to
operating fireplace.
7. Turn fireplace off and let cool before servicing, installing, or repairing. Only a qualified service person should
install, service, or repair the fireplace. Have burner
system inspected annually by a qualified service
person.
8. You must keep control compartments, burners, and
circulating air passages clean. More frequent cleaning
may be needed due to excessive lint and dust. Turn off
the gas valve and pilot light before cleaning fireplace.
9. Have venting system inspected annually by a qualified
service person. If needed, have venting system cleaned
or repaired. Refer to the Cleaning and Maintenance,
Page 25.
10. Keep the area around your fireplace clear of combustible materials, gasoline, and other flammable 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 fireplace.
11. Do not use this fireplace to cook food or burn paper or
other objects.
12. Never place anything on top of fireplace.
Continued on page 4
CDV7 Series Gas Fireplace
IMPORTANT:
PLEASE READ THE FOLLOWING CAREFULLY
It is normal for fireplaces 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.
IMPORTANT:
PLEASE READ THE FOLLOWING CAREFULLY
It is not unusual for gas fireplace to give off some
odor the first time it is burned. This is due to the
manufacturing process.
Please ensure that your room is well
ventilated during burn off — open all
windows.
It is recommended that you burn your fireplace
for at least ten (10) hours the first time you use it.
Place the fan switch in the “OFF” position during
this time.
WARNING
13. Do not use any solid fuels (wood, coal, paper, cardboard, etc.) in this fireplace. Use only the gas type
indicated on rating plate.
14. This appliance, when installed, must be electrically
grounded in accordance with local codes.
15. Do not obstruct the flow of combustion and ventilation
air in any way. Provide adequate clearances around
air openings into the combustion chamber along with
adequate accessibility clearance for servicing and
proper operation.
16. When the appliance is installed directly on carpeting,
tile or other combustible material other than wood
flooring, you must set appliance on a metal or wood
panel or hearth pad extending the full width and depth
of the appliance.
17. Do not use fireplace if any part has been exposed to
or has been under water. Immediately call a qualified 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 exchanger insert, or
any other accessory not approved for use with this
fireplace.
20. Do not operate the fireplace with glass door removed,
cracked, or broken.
IMPORTANT SAFETY INFORMATION
Never connect unit to private (non-utility)
gas wells. This gas is commonly known
as wellhead gas.
69D2027
CDV7 Series Gas Fireplace
product features & Gas specifications
product SPECIFICATIONS
• This appliance has been certified for use with natural
•
•
•
•
•
•
•
gas. See appropriate data plates.
This appliance is not for use with solid fuels.
The appliance is approved for bedroom or bedsitting
room installations.
The appliance must be installed in accordance with local
codes if any. If none exist use the current installation
code. ANSI Z223.1/NFPA 54 in the USA, CSA B149 in
Canada.
This appliance is mobile home approved.
The appliance must be properly connected to a venting
system.
The appliance is not approved for closet installations.
This appliance is approved to be vented with MHSC
T-Lock Direct Vent Components.
The classification “noncombustible material” includes, but
is not limited to stone, brick and mortar. Noncombustibles
are safe to overlay the black-painted metal face (including radiant plates) and do not pose a fire hazard. Do not
allow any noncombustible finish material to extend past or
interfere with fireplace opening.
The classification “combustible material” includes, but is not
limited to plywood, drywall and particle board. Combustible
materials may contact the sides, bottom or back of firebox.
Do not overlay the black painted face with combustible
materials.
HIGH ELEVATIONS
Input ratings are shown in BTU per hour (kw) and are
certified without deration for elevations up to 4,500 feet
(1,370 m) above sea level.
For elevations above 4,500 feet (1,370 m) in USA,
installations must be in accordance with the current
ANSI Z223.1/NFPA 54 and/or local codes having jurisdiction.
GAS pressures
Inlet Minimum
Inlet Maximum
Manifold Pressure
Remote Control
Switch Receiver
Hi/Lo Knob
Gas Specifications & ORIFICE SIZE
Off/Pilot/On Knob
Ignitor
FP2284
Figure 1 CDV7 Series Fireplace
Natural
5.5” w.c. (13.7 mbar)
10.5” w.c. (26.2 mbar)
3.5” w.c. (8.7 mbar)
Model
Fuel
CDVR36NV7CE Nat.
Max.Input Min. Input
BTU/h
BTU/h
20,000
15,000
(5.86 kw) (4.40 kw)
Orifice
Size
#44
On/Off/RS
Switch
FP2284a
CDV7 controls
69D2027
CDV7 Series Gas Fireplace
fireplace dimensions & FRAMING
21(6” (556 mm)
Minimum Rough
Opening Depth
3756QE” (941 mm)
6QE
156M”
(400 mm)
” (
m
32
13
3756QE”
(941 mm)
m
3756O” (953 mm)
Minimum Rough Opening Width
”
56M m)
(
52
5/8” (16 mm)
5/8”
1/2” (13 mm) 1/2”
26 7 m
6
(6
1556O”
(394 mm)
)
1/2” or 5/8”
Minimum Rough
Opening Height
156M”
(32 mm)
5/8” (16 mm)
206”
(518 mm)
2956QE” (738 mm)
39”
(991 mm)
1/2” (13 mm)
C
L
386”
(981 mm)
346QE”
(878 mm)
2556M”
(641 mm)
1/2” (13 mm)
15/16”
(33 mm)
26”
(60 mm)
32” (813 mm)
Figure 2 CDVR7 Fireplace Dimensions
5/8” (16 mm)
5(6QE”
(138 mm)
3756QE” (941 mm)
692027
CDV7 DIMS
69D2027
pRE-INSTALLATION INFORMATION
Before You Start
Read this homeowner manual thoroughly and follow all
instructions carefully. Inspect all contents for shipping
damage and immediately inform your dealer if any damage
is found. Do not install any unit with damaged, incomplete,
or substitute parts. Check your packing list to verify that
all listed parts have been received. You should have the
following:
• Fireplace (Firebox and Burner System) • Log Set
• Volcanic Rock
• Rock Wool
Items Required For Installation
CDV7 Series Gas Fireplace
firebox framing FOR CDVR
Firebox framing can be built before or after the appliance
is set in place. Construct firebox framing following Figure 2
for your specific installation requirements. Refer to Figure
2 for firebox dimensions. The framing headers may rest
on the top of the firebox standoffs. Do not bring headers
below top of standoffs.
The firebox may be installed directly on a combustible floor
or raised on a platform of an appropriate height. When
the firebox is installed directly on carpeting, tile, or other
combustible material, other than wood flooring, the firebox
shall be installed on a metal or wood panel extending the
full width and depth of the enclosure.
WARNING
Tools:
Building Supplies:
• Phillips Screwdriver
• Framing Materials
• Hammer
• Wall Finishing Materials
• Saw and/or saber saw • Level
• Electric Drill and Bits • Tee Joint
• Pliers
• Measuring Tape
• Square
• Pipe Wrench
• Caulking Material (Noncombustible)
• Fireplace Surround Material (Noncombustible)
• Piping Complying with Local Codes
• Pipe Sealant Approved for use with Propane/LPG
(Resistant to Sulfur Compounds)
• Flex Gas Line Connector and Shut-off Valve
Do not fill spaces around firebox with
insulation or other materials. This could cause
a fire.
NOTE
COLD CLIMATE INSULATION
If you live in a cold climate, seal all cracks around your appliance, and
wherever cold air could enter the room, with noncombustible material.
It is especially important to insulate the outside chase cavity between
the studs and under the floor on which the appliance rests, if the floor
is above ground level.
69D2027
CDV7 Series Gas Fireplace
pRE-INSTALLATION INFORMATION
Fireplace Location
Plan for the installation of your appliance. This includes determining where the unit is to be installed,
the vent configuration to be used, framing and finishing details, and whether any optional accessories
(i.e. blower, wall switch, or remote control) are desired. Consult your local building code agency to
ensure compliance with local codes, including permits and inspections.
The following factors should be taken into consideration:
• Clearance to side-wall, ceiling, woodwork, and windows. Minimum clearances to combustibles
•
•
•
•
•
•
must be maintained.
This fireplace may be installed along a wall, across a corner, or use an exterior chase. Refer to
Figure 3 for suggested locations.
Location should be out of high traffic areas and away from furniture and draperies due to heat
from appliance.
Never obstruct the front opening of the fireplace.
Do not install in the vicinity where gasoline or other flammable liquids may be stored.
Vent pipe routing. See Venting section found in this manual for allowable venting configurations.
These units can be installed in a bedroom. See National Fuel Gas Code ANSI Z233.1/NFPA 54
— (current edition), the Uniform Mechanical Code — (current edition), and Local Building Codes
for specific installation requirements.
E
A
B
Y
C
Y
A
B
C
D
E
F
Y
X
Flat on Wall
Cross Corner
Island**
Room Divider*
Flat on Wall Corner*
Chase Installation
4" (102 mm) Minimum
D
B
F
** Island (C) and room divider (D) installation is possible as long
as the horizontal portion of vent system (X) does not exceed
20' (6.1 m).
*
LU584-1
Figure 3 Locating unit
Locating Gas Fireplace
When you install your fireplace in (D) room divider or (E)
flat on wall corner positions (Y), a minimum of 4" clearance
must be maintained from perpendicular wall and front of
fireplace.
2/4/99 djt
69D2027
CDV7 Series Gas Fireplace
CLEARANCES
WARNING
Clearances to combustibles Follow these instructions carefully to ensure safe installation. Failure to follow
instructions exactly can create a fire hazard.
The appliance cannot be installed on a carpet, tile or other combustible material
other than wood flooring. If installed on carpet or vinyl flooring, the appliance
shall be installed on a metal, wood or noncombustible material panel extending
full width and depth of the appliance.
g
ilin
Ce
Finish Wall
Co
mb
us
tib
le
Stud
Ma
72"
(1829 mm) Minimum
Side
Wall
nte
l
12"
(305 mm)
Maximum
Depth
12” (305 mm)
13”
(330 mm)
256O”
(64 mm)
Header
Standoff
12”
(305 mm)
13”
(330 mm) Minimum
Top of Heat
Exhaust Vent
FP2285
Side View
6”
(152 mm)
Minimum
FP2285 36
mantel clearances
FP2032
Figure 4 Ceiling and Side Wall Clearances
1”
FP2286
156O”
356O”
256O”
WARNING
NOTE: The combustible area above the facing must not protrude
more than 3/4" (19 mm) from the facing. If it does, it is considered
a mantel and must meet the mantel requirements listed in this
manual.
Never obstruct or modify the air inlet or
outlet grilles (louvers). This may create
a fire hazard.
69D2027
Wall
Combustible
Material Area
fP2032
wall clearances
mantel clearances
Stud
3”
Side of Fireplace
Opening
456O”
45°
5”
6”
Front View
Figure 5 Mantel Clearances
FP2286
Mantel leg clear
CDV7 Series Gas Fireplace
The fireplace must be secured to the
floor and/or to framing studs as shown
in Figure 6. Use two (2) wood screws
or masonry/ concrete screws to secure
fireplace to the floor. Use four (4) screws
to attach fireplace to framing. The side
nailing flanges are 1/2" (13 mm) or 5/8"
(16 mm) to accommodate different wall
thickness.
SECURE FIREPLACE to floor or framing
Drywall Support Tabs (Do
Not Use for Framing or
Header)
Framing
Nailing
Flange
Screws
Framing
Screw
Nailing
Flange
Nailing
Flanges
Screw
Figure 6 Securing Fireplace to Floor and
Framing Studs
Screw
Screw
FP2671
Finishing Material
NOTE: Any wiring (i.e. remote control, wall switch, and optional fan) must be done prior to final
finishing to avoid costly reconstruction.
FP2671
Only noncombustible materials (i.e. brick, tile, slate, steel, or other materials with a UL fire rating
secure fireplace
of Zero) may be used to cover the black surface of the appliance. A 300°F (150° C) minimum
adhesive may be used to attach facing materials to the black surface. If joints between the finished wall and the fireplace surround are sealed, a 300°F (150° C) minimum sealant material
(General Electric RTV103 or equivalent) must be used.
10
69D2027
WARNING
Venting INSTALLATION INFORMATION
CDV7 Series Gas Fireplace
Read all instructions completely and thoroughly before attempting installation. Failure
to do so could result in serious injury, property damage or loss of life. Operation of
improperly installed and maintained venting system could result in serious injury,
property damage or loss of life.
installation precautions
General Venting
Consult local building codes before beginning the
installation. The installer must make sure to select the
proper vent system for installation. Before installing vent
kit, the installer must read this fireplace manual and vent
kit instructions.
Your fireplace is approved to be vented either through the
side wall, or vertical through the roof.
Only a qualified installer/service person should install venting system. The installer must follow these safety rules:
• Wear gloves and safety glasses for protection.
• Use extreme caution when using ladders or when on
• Be aware of electrical wiring locations in walls and
rooftops.
ceilings.
The following actions will void the warranty on your venting system:
• Installation of any damaged venting component.
• Unauthorized modification of the venting system.
• Installation of any component part not manufactured
WARNING
Failure to follow these instructions will
void the warranty.
proved and labelled for this fireplace may be
used.
• Flexible UL1777 listed venting may be used in any
venting application where rigid direct vent components
can be used. All restrictions, clearances and allowances that pertain to the rigid piping apply to the flexible
venting.
Flex kits may not be modified. Flex kits may be added
to the end of a vent run made of rigid vent sections
using pipe manufacturer's approved flex to pipe adapters. This may occur only if doing so does not violate
any of the venting length, height, routing, horizontal to
vertical ratio requirements or clearance considerations
detailed in this manual.
• Venting terminals shall not be recessed into a wall or
siding.
• Horizontal venting which incorporates the T-lock pipe
must be installed on a level plane without an inclining
or declining slope.
• Horizontal venting which incorporates the use of flex
venting shall have an inclining slope from the unit of 1”
(25 mm) per 24” (610 mm).
There must not be any obstruction such as bushes, garden sheds, fences, decks or utility buildings within 24”
(610 mm) from the front of the termination hood.
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 the vent termination be located observing
the minimum clearances as shown on following page.
This fireplace must be vented to the
outside. The venting system must NEVER
be attached to a chimney serving a
separate solid fuel burning appliance.
Each gas appliance must use a separate
vent system. Do not use common vent
systems.
WARNING
NOTICE
or approved by MHSC.
• Installation other than permitted by these instructions.
• Only MHSC venting components specifically ap-
Always maintain minimum clearances around vent systems. The minimum clearances to
combustibles for horizontal vent pipe are 3" (76 mm) at the top* and 1" (25 mm) at the sides
and bottom of the vent system until the pipe penetrates the nearest vertical wall (1" [25 mm)}
required). A 1" minimum clearance all around the pipe must be maintained at outside wall and
on vertical runs. Do not pack the open air spaces with insulation or other materials. This could
cause high temperatures and may present a fire hazard.
* Unless the vertical run is 7Z\x feet (2.3 m) or higher (top vent units only), the clearances for
the horizontal run is 1" (25 mm) at the top.
69D2027
11
CDV7 Series Gas Fireplace
Venting INSTALLATION INFORMATION
General Venting Information - Termination Location
INSIDE CORNER DETAIL G V H A D L V E C V B F Figure 7 Termination Locations
B Fixed
Closed
Ope
V B B B V Fixed
Closed
Operable
B V J A CFM145a V VENT TERMINATION V rable
X AIR SUPPLY INLET X
M I V K X AREA WHERE TERMINAL IS NOT PERMITTED Canadian Installations1US Installations2
CFM145a DV Termin Location A = Clearance above grade, veranda, porch, 12” (30 cm)
12” (30 cm)
5/01/01 Rev. 12/05/01 deck, or balcony
sta B = Clearance to window or door that may be 6” (15 cm) for appliances 6” (15 cm) for appliances
opened
< 10,000BTU/h (3kW), 12” (30 cm) < 10,000 BTU/h (3kW), 9”
for appliances > 10,000 Btuh (3kW) and
(23 cm) for appliances > 10,000
< 100,000 BTU/h (30kW), 36” (91 cm)
Btuh (3kW) and < 50,000 BTU/h
for appliances > 100,000 BTU/h (30kW)
(15kW), 12” (30 cm) for
appliances > 50,000 BTU/h(15kW)
C = Clearance to permanently closed window
12” (305 mm) recommended to
12” (305 mm) recommended to prevent window condensation
prevent window condensation
D = Vertical clearance to ventilated soffit located
above the terminal within a horizontal 18” (458 mm)
18” (458 mm)
distance of 2’ (610mm) from the center
line of the terminal
E = Clearance to unventilated soffit
12” (305 mm)
12” (305 mm)
F = Clearance to outside corner see next page
see next page
G =Clearance to inside corner (see next page) see next page
see next page
H = Clearance to each inside of center line
3’ (91 cm) within a height of 15’ (5 m) 3’ (91 cm) within a height of 15’
extended above meter/regulator assembly
above the meter/regulator assembly
(5 m) above the meter/regulator
assy
I = Clearance to service regulator vent outlet
3’ (91 cm)
3’ (91 cm)
J = Clearance to nonmechanical air supply inlet 6” (15 cm) for appliances < 10,000
6” (15 cm) for appliances
to building or the combustion air inlet to any BTU/h (3kW), 12” (30 cm) for
< 10,000 BTU/h (3kW), 9”
other appliances
appliances > 10,000 BTU/h (3kW) and (23 cm) for appliances > 10,000
< 100,000 Btuh (30kW), 36” (91 cm)
BTU/h (3kW) and < 50,000 BTU/h
for appliances > 100,000 BTU/h (30kW)
(15kW), 12” (30 cm) for appliances > 50,000 BTU/h(15kW)
K = Clearance to a mechanical air supply inlet
6’ (1.83 m)
3’ (91 cm) above if within 10'
(3 m) horizontally
L = Clearance above paved sidewalk or paved 7’ (2.13 m)† 7’ (2.13 m)†
driveway located on public property
M =Clearance under veranda, porch, deck or
12” (30 cm) 12” (30cm)
balcony
1 In accordance with the current CSA-B149 Installation Codes
2 In accordance with the current ANSI Z223.1/NFPA 54 National Fuel
Gas Codes
† 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 is fully open on a
minimum 2 sides beneath the floor:
12
NOTE: 1. Local codes or regulations may require different clearances.
2. The special venting system used on Direct Vent Fireplaces are certified as part of the appliance, with clearances tested and approved by the listing agency.
3. MHSC assumes no responsibility for the improper performance of the appliance when the venting system does not meet these requirements.
69D2027
CDV7 Series Gas Fireplace
Venting INSTALLATION INFORMATION
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
Alcove Applications*
Inside Corner
Outside Corner
G=
Combustible
6" (152 mm)
G
F=
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
V
Noncombustible
2" (51 mm)
V
C
V
E
O
F
Balcony with perpendicular side wall
Balcony with no side wall
D
C
E = Min. 6” (152 mm) for
non-vinyl sidewalls
Min. 12” (305 mm) for
vinyl sidewalls
O = 8’ (2.4 m) Min.
M
M
No.
of Caps DMin. CMax.
1
3’ (914 mm) 2 x DActual
2
6’ (1.8 m)
1 x DActual
3
9’ (2.7 m)
2/3 x DActual
4
12’ (3.7 m) 1/2 x DActual
V
V
P
M=
Combustible &
Noncombustible
12" (305 mm)
Combustible &
Noncombustible
M = 24" (610 mm)
P = 20” (508 mm)
DMin. = # of Termination caps x 3
CMax. = (2 / # termination caps) x DActual
584-15
*NOTE: Termination in an alcove space (spaces open only on one side and with an overhang) is permitted with the dimensions specified for vinyl or
non-vinyl siding and soffits. 1. There must be a 3’ (914 mm) minimum between termination caps. 2. All mechanical air intakes within 10’ (1 m) of a
termination cap must be a minimum of 3’ (914 mm) below the termination cap. 3. All gravity air intakes within 3’ (914 mm) of a termination cap must
be a minimum of 1’ (305 mm) below the termination cap.
Figure 8 -
Termination Clearances
General Information Assembling Vent Pipes
Only venting components manufactured by MHSC may
be used in Direct Vent systems.
Apply High Temperature
Sealant
Flex Vent Pipes
Before joining the flex vent pipe to the unit, apply a bead
of high temperature sealant* (provided) to the 4” (102
mm) pipe exiting the fireplace. Secure flex vent pipe in
place with a hose clamp (provided).
*Be sure the flex pipe overlaps at least 1” (25 mm) onto
the collars of the fireplace and termination. If the termination has an internal bead, be sure to overlap and secure
1” (25 mm) past the bead.
* Be sure the vent is actually crushed before proceeding.
Apply a tug to be sure the vent will not slip off the collars.
Repeat process with 7” (178 mm) flex vent pipe. The same
procedure must be performed on the vent side.
Hose Clamp
FP2290
Figure 9 Apply high temperature sealant to 4” (102 mm) and 7”
(178 mm) pipes.
13
69D2027
FP2290
CDV7 Series Gas Fireplace
Venting INSTALLATION INFORMATION
T-Lock Pipes
How to Use the Vent Graph
When using unitized T-Lock pipe it is not necessary to
use sealant on the joints. The only areas of the venting
system that need to be sealed with high temperature silicone sealant are the sliding joints of any telescope vent
sections used in the system.
The Vent Graph should be read in conjunction with the
following vent installation instructions to determine the relationship between the vertical and horizontal dimensions
of the vent system.
Internal
Beads
T-Channel
Arrow
Indentations
1. Determine the height of the center of the horizontal
vent pipe exiting through the outer wall. Using this dimension on the Sidewall Vent Graph, Figure 12, locate
the point intersecting with the slanted graph line.
2. From the point of this intersection, draw a vertical line
to the bottom of the graph.
3. Select the indicated dimension, and position the fireplace in accordance with same.
EXAMPLE A:
If the vertical dimension from the floor of the unit is 11’ (3.4
m) the horizontal run to the face of the outer wall must not
exceed 14’ (4.3 m).
EXAMPLE B:
If the vertical dimension from the floor of the unit is 7’ (2.1
m), the horizontal run to the face of the outer wall must not
exceed 8’ (2.4 m).
Female End
Male End
Figure 10 T-Lock Pipe Joints
Insert male end until beads on the female end contact
bottom of T-channel
on male end. Twist pipe until beads
FP2740
stop at ends of T-channel.
T lock channels
IMPORTANT: Pipe can be twisted in either direction.
However, ALL PIPE SECTIONS MUST BE ROTATED IN
THE SAME DIRECTION.
Securing the joints with sheet metal screws is not required.
To make it easier to assemble the joints, we suggest putting lubricant (Vaseline or
Female End
similar) on the male end
of the T-Lock pipe prior to
Arrow
assembly.
To disassemble T-Lock
pipe, rotate pipe sections
until internal beads on
female end are centered
with the arrow indentations on male end. Figure
11. Pipe sections will then
easily separate by pulling
straight apart.
14
Indentations
on Male End
Vertical Dimension from the Floor of Unit to the Center of
the Horizontal Vent Pipe
FP2740
X
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
Feet
.6
0
1.
2
1.
8
2.
4
3.
0
3.
7
4.
3
4.
9
5.
5
6.
1
To join T-Lock pipes together, simply align both inner and
outer pipes with the next section. Align the internal beads
of the female end with the T-channels of the male end.
Figure 10
eg: A
Meters
12.2
11.6
11.0
10.3
9.8
9.1
8.5
7.9
7.3
6.7
6.1
5.5
4.9
4.3
3.7
3.0
2.4
1.8
1.2
.60
2 4 6 8 10 12 14 16 18 20
Horizontal Dimension From the Outside of Termination to
the Back of the Fireplace
Figure 11 T-Lock Disassemble
FP2741
FP2741
T-lock undo
X = 25Z\v" (641 mm) minimum
(Floor to center of horizontal pipe)
FP2291
vent graph
Figure 12 Side Wall Venting Graph
69D2027
CDV7 Series Gas Fireplace
VentING installation
VENT PIPE CLEARANCES
Rear Wall Vent Application
A Minimum 1" (25 mm)
Clearance to Combustibles
Permitted All Around Flue at
Outside Wall
A Minimum of 3" (76 mm)
Clearance to the Top Is
Required Along Horizontal
Length until Flue Pipe
Penetrates Outside Wall.
3"
1"
1
1" "
When installed as a rear vent unit this appliance may be
vented directly to a termination located on the rear wall
behind the appliance.
• Only MHSC venting components are approved to be
used in these applications (Refer to ‘Venting Components’ listed for different installation requirements).
• The maximum horizontal distance between the rear of
the appliance (or end of the transition elbow in a corner application) and the outside face of the rear wall is
20” (508 mm). Figure 14
• Only one 45° elbow is allowed in these installations.
• Minimum clearances between vent pipe and combustible materials are as follows:
Top - 3” (76 mm)
- except at outside wall 1" (25 mm)
Sides - 1” (25 mm)
Bottom - 1” (25 mm)
Rear Vent Top
View
20”
(508 mm)
Max.
FP2289
WARNING
Figure 13 Combustible Clearances for Vent Pipe
FP2289
Rear Vent: Horizontal sections of this vent
RV rear vent
system require a minimum of 3" (76 mm)
clearances to combustibles at the top of
the flue and 1" (25 mm) clearance at the
sides and bottom until the flue penetrates
the outside wall. A minimum 1" (25 mm)
clearance all around the flue is acceptable
at this point of penetration.
Vertical sections of this vent system require
a minimum of 1" clearance to combustibles
on all sides of the pipe.
Figure 14 Rear Vent Application, No Elbows
REAR WALL
VENT INSTALLATION FP2292
T-LOCK PIPE
Step 1
rear vent top vu
Locate and cut the vent opening in the wall.
For combustible walls first frame in opening. Figure 15
NOTE: When using flex vent, the opening will have to be
measured according to the 1” (25 mm) rise in 24” (610
mm) vertical run.
Combustible Walls: Cut a 9B\,”H x 9B\,” W (244 x 244
mm) hole through the exterior wall and frame as shown.
Figure 15
Noncombustible Walls: Hole opening should be 7Z\x”
(191 mm) diameter.
Step 2
Secure firestop to the inside frame, center in the 9B\," x
9B\," (244 x 244 mm) vent opening.
69D2027
15
CDV7 Series Gas Fireplace
VentING installation
Vent Opening for Combustible Walls
9B\,”
(244 mm) Min.
Finish Wall
Vent
Termination
9B\,”
(244 mm)
Min.
Fireplace Hearth
Framing Detail
Opening for Noncombustible Wall
Figure 16 Side View of Final Unit Location
7Z\x”
(190 mm)
FP2293
Fireplace Hearth
Figure 15 Locate vent opening on wall.
Step 3
Measure the horizontal length requirement for the venting
including a 2” (51 mm)
overlap, i.e. from the elbow to the
VO584-100
outside wall face plusVent
2” (51
mm). Figure 14
Opening
Step 4
2/99 djt
Install the unitized T-lock vent pipe to the appliance collar,
following T-Lock directions on Page 14. It is not necessary to seal this connection. If a 45° elbow is being used
attach the elbow to the appliance in the same manner
then attach the venting to the elbow.
IMPORTANT: Pipe can be twisted in either direction.
However, ALL PIPE MUST BE ROTATED IN THE SAME
DIRECTION.
Securing the joints with sheet metal screws is not required.
It is critical that there is no downward slope
away from the appliance when connecting
the vent or elbow.
FP2294
FP2294
Rear Wall Vent Installations
Side View Vent Termination
Flex Vent Pipe
1/25/00 djt
Follow Steps 1 and 2 on Page 15.
Step 3
Install the 4” (102 mm) flex vent pipe to the appliance collars described in “General Information Assembling Vent
Pipes”, Page 13. If the installation requires a 45° angle,
grasp the vent pipe close to the appliance collar and bend
to 45°. DO NOT exceed 45°. Figure 17
Install the 7” vent pipe in the same manner as Step 2.
NOTE: There must be a 1/2” (13 mm) rise in a 12” (305
mm) length of flex vent.
Step 4
Assemble the flex vent to the collars on the termination as
you did on the appliance.
Termination
Flex Section
Appliance Collars
Step 5
Guide the venting through the vent hole as you place the
appliance in its installed position. Guide the 4” (102 mm)
and 7” (178 mm) collar of the vent termination into the
outer ends of the venting. Do not force the termination. If
the vent pipes do not align with the termination, remove
and realign the venting at the appliance flue collars. Figure 16. Attach the termination to the wall as outlined in the
instruction sheet supplied with the termination.
Figure 17 Grasp the vent pipe close to the collar and
bend to 45° angle. do not exceed 45°.
FP1473
69D2027
16
FP1473
corner flex install
CDV7 Series Gas Fireplace
check gas type
Use proper gas type for the fireplace you are installing.
If you have conflicting gas type, do not install fireplace.
See dealer where you purchased the fireplace for proper
fireplace for your gas type or conversion kit.
Install gas piping to fireplace /
burner system location
installation items needed
Before installing fireplace and burner system, make sure
you have the items listed below.
• Piping (check local codes)
• Sealant (resistant to propane/LP gas)
• approved flexible gas line with gas connector (if
CAUTION
allowed by local codes — not provided)
• Equipment shutoff valve*
• Sediment trap (recommended) • Tee joint
• Pipe wrench
• External regulator (supplied by installer) - LP Only
• Test gauge connection*
* An equipment shutoff valve with a plugged tap is an
acceptable alternative to test gauge connection.
Use only new black iron or steel pipe.
Internally tinned copper or copper tubing
can be use, providing gas meets hydrogen
sulfide limits, and where permitted by local
codes. Gas piping system must be sized to
provide minimum inlet pressure (listed on
data plate) at the maximum flow rate (kw).
Undue pressure loss will occur if the pipe
is too small.
WARNING
A qualified installer or service person must
connect appliance to gas supply. Follow all
local codes.
WARNING
When using copper or flex connectors use only fittings
approved for gas connections. The gas control inlet is
RP 1/2"-14 straight pipe thread.
Only persons licensed to work with gas
piping may make the necessary gas
connections to this appliance.
CAUTION
GAS LINE installation
A manual shutoff valve must be installed
upstream of the appliance. Union tee and
plugged pressure tapping point should be
installed upstream of the appliance. Figure
17
NOTE: The gas line connection may be made using 1/2"
rigid tubing or an approved flex connector. Since some
municipalities have additional local codes it is always best
to consult your local authorities and the current edition of
the National Fuel Gas Code.
IMPORTANT: Install main gas valve (equipment shutoff
valve) in an accessible location. The main gas valve is for
turning on or shutting off the gas to the fireplace.
Check your building codes for any special requirements for
locating equipment shutoff valve to fireplaces.
Apply pipe joint sealant lightly to male threads. This will
prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged burner system valve.
We recommend that you install a sediment trap/drip leg in
supply line as shown in Figure 18. Locate sediment trap/
drip leg where it is within reach for cleaning. Install in piping
system between fuel supply and burner system. Locate
sediment trap/drip leg where trapped matter is not likely
to freeze. A sediment trap collects moisture and contaminants and keeps them from going into the burner system
gas controls. If sediment trap/drip leg is not installed or is
installed wrong, burner system may not run properly.
Equipment
Shutoff
Valve
Approved
Flexible
Gas Line
Natural Gas
From Gas Meter
(5.5" w.c. to 10.5" w.c. Pressure)
(14-26 mbar)
Tee Joint
Sediment Trap/Drip Leg
Pipe Nipple
Cap
Figure 18 Gas Connection
69D2027
3"
M
ini
mu
m
FP1978
gas connection
CAUTION: Use pipe joint sealant that is resistant
to sulfur compounds.
17
CDV7 Series Gas Fireplace
CHECK GAS PRESSURE and Electrical installation
WARNING
1. Check gas type. The gas supply must be the same as
stated on the appliance’s rating decal. If the gas supply
is different from the fireplace, STOP! Do not install the
appliance. Contact your dealer immediately.
2. To ease installation, a 30" (762 mm) flex line with manual
shut-off valve can be used.
3. After completing gas line connection, purge air
from gas line and test all gas joints from the gas
meter to the fireplace for leaks. Use a solution of
50/50 water and soap or a gas sniffer.
Pressure
4. To adjust flame height, turn HI/LO knob to HI to get Test “IN”
maximum pressure to burner. Turn HI/LO knob to
LO to get minimum pressure.
Pressure
FP1979
5. To check gas pressures at valve, turn captured Test “OUT”
screw counter clockwise 2 or 3 turns and then place
HI/LO Knob
tubing to pressure gauge over test point. Turn unit
Pilot Adjustment Screw
to high. Figure 19. After taking pressure reading,
be sure and turn captured screw clockwise firmly
Figure 19 to reseal. Do not over torque. Check test points for
Gas Pressure Check at Gas Valve
gas leaks.
FP1979
Do not Millivolt
use open
gasflame
valve to check for gas
leaks.
Electrical Wiring
This fireplace will work without any electrical supply. Electricity is only needed to operate blower.
18
Electrical connections should only be
performed by a qualified, licensed electrician.
Main power must be off when connecting to
main electrical power supply or performing
service. All wiring shall be in compliance
with all local codes. The appliance, when
installed, must be electrically grounded in
accordance with local codes.
CAUTION
WARNING
NOTE: If installed in mobile home, fireplace must be bolted securely to floor.
Label all wires before disconnecting when
servicing controls. Wiring errors can cause
improper and dangerous operation.
Verify proper operation after servicing.
69D2027
CDV7 Series Gas Fireplace
Electrical installation
A remote wall switch and up to fifteen (15) feet (5 m) of 18 Ga.
wire may be used with this appliance. Attach the wall switch in
a junction box at the desired location on the wall. Figure 20. Do
not extend beyond the wall switch wire length provided.
WARNING
Remote Wall mounted Switch
Do not connect wall switch to high
voltage (110-220 V) circuit.
NOTE: Extended lengths of wire may cause the fireplace not
to function properly. Longer length of wire is permitted if the
wire is made out of larger gauge (diameter) wire. Always check with local code.
OPTIONAL REMOTE
WALL SWITCH
ON
HI
ON
OFF
PILOT
LO
TH
TP
ON
TH/TP
OFF
RS
OFF
OPTIONAL REMOTE
CONTROL RECEIVER
ON
OFF
Figure 20 Wiring Diagram for Wall Switch
Remote Wall Switch
Position the wall switch. Do not extend beyond the 15 feet
(5 m) of wire.
FP1980
Optional DC Remote Systems
Dv wiring diagram
See section entitled Hearth Mount in the Millivolt hand held
remote instructions supplied with the remote.
1. Using a flat head screw driver, bend the “remote” tabs
up from the bottom of the fireplace. Figure 21
2. Follow the instructions on remote control to snap the
remote cover plate to the remote receiver
3. Connect the wire terminal from the remote receiver.
Figure 20
4. Use the screws that came with the remote control to
mount the remote receiver cover to the bent up “remote”
tabs. Figure 21
'Remote' Tabs
Remote Control
Receiver
FP2284a
Figure 21 Optional Control Location
69D2027
FP2284a
CDV7 controls
19
CDV7 Series Gas Fireplace
glass removal & ROCK WOOL PLACEMENT
Glass Frame Removal
1. Remove upper and lower louvers.
2. Release the clamps on the bottom of the fireplace.
Figure 22
3. Tilt glass frame out and lift glass frame up until it clears
the hook on top of the frame.
4. Set glass frame aside.
CAUTION
Glass Frame
Each clamp has a quick spring force. When
reinstalling clamps, keep fingers clear.
!
WARNING
HOT GLASS WILL
CAUSE BURNS.
Clamps
FP2297
Figure 22 Remove Glass Frame
FP2297
remove glass
DO NOT TOUCH GLASS
UNTIL COOLED.
NEVER ALLOW CHILDREN
TO TOUCH GLASS.
Burner
rock wool placement
Cover with
Rock Wool
20
FP2648
Figure 23 Placement of Rock Wool on Burner
FP2648
BDV rock wool place
WARNING
1. For best results in flame appearance and operation, use one (1) 8 gram bag of rock wool for
propane/LP models and up to three (3) bags of
rock wool for natural gas models.
2. Pull the rock wool apart into dime-sized pieces
or smaller. Cover the entire surface of the burner
with one thin layer of rock wool.
3. Place the logs on the burner. Refer to the “Log
Placement Section”. Light the unit and after 15
minutes check burner flame and glow. Adjust
embers as necessary to achieve an even and
clean flame.
The use of too much rock wool could
cause flame to burn poorly and may cause
sooting.
69D2027
CDV7 Series Gas Fireplace
Log placement
log placement
Figure 24
1. Place rear log (#1) on grate assembly. Log should rest firmly on the two log mounting pins shown.
2. Place top right log (#2) on the rear log. Rest the right back side of the log in the flat area of the rear
log. Place the narrow front end of the log next to the center vertical grate bar.
3. Place the top left log (#3) on the rear log. Nest the forked end of the top left log into the fork or the
rear log. Rest the narrow end of the top left log behind the center vertical grate bar.
lava rock and ember placement
Sprinkle lava rock on the floor of the inner combustion chamber. Evenly distribute the rock. Do not pile
the lava rock up in front of grate. Do not place lava rock on the burner. If desired, purchase optional
embers to decorate the floor of the fireplace.
Top Right Log,
#2
Top Left Log, #3
Rear Log, #1
Flat Area
Log Mounting Pins
Log Mounting Pins
Left Vertical Grate Bar
Figure 24 Log Placement
Center Vertical Grate Bar
LG637
WARNING
Right Vertical Grate Bar
Do not sprinkle the lava rock or ember chunks
on top of the burner. This may cause potential
LG637
sooting, glass breakage and a fire hazard
69D2027
CDV logs
21
CDV7 Series Gas Fireplace
Millivolt OPERATING INSTRUCTIONS
WARNING
for your safety read before lighting If you do not follow these instruction
exactly, a fire or explosion may result
causing property damage, personal injury
or loss of life.
A. This appliance is equipped with a pilot which must be lit with built-in piezo ignitor while
following these instructions exactly.
B. BEFORE OPERATING 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:
• Turn off all gas to the appliance.
• Open windows.
• Do not attempt to light any appliance.
• Do not touch any electric 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 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 attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part of it 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 that has been under water.
WARNING
Lighting pilot for the first time initial lighting Never use an open flame to
Purge air from the supply line as follows:
check for gas leak.
• Open main shutoff valve.
• Unscrew main pressure test point.
• Leave inlet test screw open until gas comes in.
• When gas is flowing, tighten inlet screw immediately.
leak testing
1. Follow the pipe from the gas supply line connection to the gas valve. Check connection for
leaks with soap and water mixture.
2. Next check for gas leaks at the burner with soap and water mixture.
3. Check the pilot for gas leaks with soap and water mixture.
22
69D2027
CDV7 Series Gas Fireplace
millivolt OPERATING INSTRUCTIONS
approved leak testing method You may check for gas leaks with the following methods
only:
• Soap and water solution
• An approved leak testing spray
danger
• Electronic sniffer
Never check for gas leak with open
flame!
WARNING
Lighting pilot for the first time If using a soap and water
solution to test for leaks,
DO NOT spray solution onto
control body.
NOTE: Remove any excessive pipe
compound from the connections.
Excessive pipe compound can set off
electronic sniffers.
Check for gas leaks in each of the following locations:
• Pipe from the gas supply line connection to the gas valve
• Burner connections • Field made joints / gas shutoff valve
• Pilot • Factory made joints
• Each joint or connection
• All joints on valve and control body
WARNING
Lighting pilot The control has an interlock device that does not allow the lighting of the fireplace
up to the moment the safety device of the flame has not interrupted the gas flow.
After that period of time (when the magnet is closed), it is possible to start the
lighting operation.
The gas control knob is designed to be operated by hand. DO NOT use any tools
during this operation. Damaged knobs may result in serious injury.
1. Depress and turn knob counterclockwise
to pilot position.
If the pilot does not stay lit, repeat steps 1 and 2.
F PILOT ON
OF
2. Depress fully and hold pilot gas knob. Depress
piezo igniter as many times as needed to ignite pilot.
Keep knob fully depressed for a few seconds.
Release and check that pilot continues to
burn.
Figure 25 Pilot Position
PIL
OT
Continued on next page
69D2027
FP1935
control knob pilot
23
CDV7 Series Gas Fireplace
millivolt OPERATING INSTRUCTIONS
Lighting burner OFF
RS
The “ON/OFF/RS” switch for the main burner can be found
behind door of the fireplace. This switch allows you to turn on
and to turn off the main burner without using the gas valve knob.
Make sure the button is in the “ON” position to light the main
burner. Figure 26
ON
main burner switch
Figure 26 On/Off/RS Switch
Lighting the burner
P
Depress and turn knob to pilot position to keep burner off while maintaining the pilot light. Figure 28
ILOT
Pilot position
OFF
ON
Depress and turn the knob counterclockwise
to the “ON”
position. Figure 27. It will take less than four (4) seconds for the
burner to ignite.
PIL
Figure 27 On Position
OT
PILOT ON
FP1937
control knob on
F Figure 28 Pilot Position
OF
PIL
OT
to turn off gas Depress and turn knob clockwise
FP1935
to “OFF”
position.
Figure 29
control
knob pilot
Figure 29 Off Position
24
ON
OFF
PI L O
T
PIL
OT
69D2027
CDV7 Series Gas Fireplace
WARNING
cleaning and maintenance
Turn off gas before servicing fireplace. It is
recommended that a qualified service technician
perform these check-ups at the beginning of
each heating season.
Burner, Pilot and Control Compartment
Keep the control compartment, logs, and burner areas surrounding the logs clean by vacuuming or
brushing at least twice a year. Make sure the burner porting, pilot air opening and burner air opening
are free of obstructions at all times.
Pilot Flame
The flames from the pilot should be visually checked as soon as the heater
is installed and periodically during normal operation. The pilot flame must
always be present when the fireplace is in operation. Figure 30. The pilot
flame has three distinct flames, one engulfing the thermopile, one engulfing
the thermocouple, and the other reaching to the main burner.
Thermocouple
Thermopile
burner
Inspect area around the injector. Remove any lint or foreign material with
a brush or vacuum.
FP1943
Figure 30 PilotFP1943
Flame
Burner Flame
pilot flame
The flames from the burner should be visually checked as soon as the
heater is installed and periodically during normal operation. In normal operation, at full rate, and
after operating for about 15 to 30 minutes, the flame should be yellow and slightly taller than the
rear log. Figure 31
If the flame is blue and only in the center, turn
off unit and let cool. After unit is cool, remove
logs and check to make sure rock wool is
placed correctly. Replace logs.
NOTE: The type of installation, vent system
configuration, and wind effects may cause the
flame patterns to vary.
Figure 31 Burner Flame Appearance
LG638
69D2027
25
CDV7 Series Gas Fireplace
cleaning and maintenance
Vent System
The fireplace and venting system should be inspected before initial use and at least annually by a qualified field service person. Inspect the external vent cap on a regular basis to make sure that no debris is
interfering with the airflow. Inspect entire venting system to ensure proper function.
Glass Door
Thoroughly clean the inside of the glass door after using the fireplace for ten hours. Periodically clean
the glass door as necessary.
When cleaning the glass, remember:
•
•
•
•
•
•
Do not remove the glass when hot. Allow glass to cool before removal.
NEVER use abrasive materials.
Keep children and pets a safe distance away.
Never operate the fireplace without the glass door properly secured.
Never operate the fireplace if the glass is broken.
Replace any glass that is chipped, cracked, or broken. Replacement glass door assemblies MUST
be supplied by the fireplace manufacturer ­– No substitute materials may be used.
• Handle glass door with care to avoid striking or scratching it on hard objects.
To clean glass door, follow “Glass Removal” procedure outlined in the Final Installation section. Film
deposit on the inside of the glass should be cleaned off using a nontoxic, non-corrosive, non-abrasive,
mild-cleaning solution. Simply apply an adequate amount to the glass and wipe off with a damp cloth.
After all maintenance has been completed, re-install glass door.
Logs
Leave logs installed in the fireplace for cleaning. Vacuum surface of the logs with a brush attachment. If
logs must be removed for cleaning, handle carefully by holding gently at each end. Gloves are recommended to prevent skin irritation from ceramic fibers. If skin becomes irritated, wash gently with soap and
water. Vacuum surface of logs with brush attachment or brush logs with a soft bristle brush (i.e. clean,
dry paintbrush). To place logs back in the fireplace, Refer to “Log Placement” section in this manual.
NOTE: Do not use fluids to clean ceramic fiber logs.
Rock wool
Replace or add rock wool as required following installation instructions in the Final Installation section
of this manual.
26
69D2027
CDV7 Series Gas Fireplace
troubleshooting
Standing Pilot Ignition
SYMPTOM
POSSIBLE CAUSE
1. Spark ignitor will
A. Wire disconnected.
not light pilot after
repeated triggering of B. Defective ignitor.
piezo.
C. No gas or low gas pressure.
2. Pilot will not stay lit
A. Defective thermocouple
after carefully following lighting instructions.
B. Defective valve
3. Pilot burning, valve
knob turned to “ON”,
switch is turned to
“ON” or “RS”, but
burner will not ignite.
A. Defective switch, wall
switch, remote control or
wire
B. Pilot flame too small
C. Defective or malfunctioning thermopile
D. Defective valve
69D2027
ACTION
A. Open door and check to make sure wire is connected to
ignitor.
B.Check for spark at electrode and pilot. If no spark and
electrode wire is properly connected, replace pilot
assembly.
C. Check remote/manual shut off valve from fireplace. Low
pressure can be caused by bent lines, restricted lines,
low pressure line pressure. Consult with plumber or gas
supplier.
A. Check that thermocouple flame impinges on thermocouple. Clean and/or adjust pilot for maximum flame
impingement. Ensure that the thermocouple connection
at the gas valve is fully inserted and tight.
Disconnect the thermocouple from the valve, place one
millivolt lead wire on the tip of the thermocouple and the
other meter lead wire on the thermocouple copper lead.
Start the pilot and hold the valve knob in. If the millivolt
reading is less than 15 mV, replace pilot assembly.
B.If thermocouple is producing more than 15 mV, replace
faulty valve.
A. Check switch and wire for proper connection. Place
jumper wires across terminals of switch. If burner comes
on, replace defective switch.If the switch is OK, repeat
the same procedure on remote control If burner comes
on, replace remote control.
Place jumper wire across wire at gas valves (terminals
marked TH and TP/TH). If burner comes on, wires are
faulty or connections are bad. Replace wire.
B.If pilot flame is not close enough to the thermopile, adjust
pilot flame.
C.Check thermopile wire connections to make sure all
are tight and that the thermopile is fully inserted into
pilot assembly. Check thermopile with a millivolt meter.
Connect leads to TP and TP/TH terminals on the control
valve. If meter reading is below 325 mV, replace pilot
assembly.
D.Turn valve knob to “On” and switch to “ON.” Take a reading at the thermopile leads (TP & TP/TH) on the valve.
If the meter reads greater than 175 mV and the burner
does not light, replace defective valve.
27
CDV7 Series Gas Fireplace
troubleshooting
Standing Pilot Ignition
SYMPTOM
POSSIBLE CAUSE
ACTION
4. Frequent pilot
outage problem.
A. Pilot flame may be too high A. Clean and adjust the pilot flame for maximum flame
or too low, causing pilot
impingement on thermocouple.
safety to drop out
5. The pilot and main
burner extinguish
while in operation
A. Inner vent pipe leaking
exhaust gases back into
system
A. Check for flue product leak. Replace defective pipe section.
B. Horizontal vent improperly
pitched
C. Improper vent cap installation
B. Check horizontal-venting piping is running upward 1/4"
per foot (1:50). Do not run the pipe level or downward.
C. Check for proper installation and freedom from debris
or blockage.
6. Glass Soots
A.Flame impingement on logs A. Install log set per the instructions
Inspect the injector and air intake area. Make sure
this area does not have any blockage from debris and
clean.
Check gas supply.
7. Flame burns blue
and lifts off burner
(ghosting)
A.Insufficient fresh air being
supplied
28
A. Ensure that the vent cap is installed properly and free of
debris. Ensure that the vent system joints are tight and
have no leaks. Ensure that no debris has been blocking
the inner air intake at the bottom back of the combustion
chamber. Ensure that the glass is properly secure and
latch.
69D2027
CDV7 Series Gas Fireplace
replacement parts
firebox components
3
7
2
5
4
(CDVR Series)
5
1
69D2027
29
CDV7 Series Gas Fireplace
replacement parts
firebox components
Ref. DescriptionQty.Part No.
Standard Features
1. Junction Box Assy
1
26D2128K
2. Black Louver
6
26D0695
3. Glass Frame Assy
1
69D0028
Factory Installed Service Parts
2. Brass Louver
6
26D0701K
4. Firebrick Rear - Cottage Clay
1
69D0040
4. Firebrick Rear - Tavern Brown
1
69D0044
5. Firebrick Right / Left - Cottage Clay
2
69D0042
5. Firebrick Right / Left - Tavern Brown
2
69D0046
6. Blower Motor (not shown)
1
26D0748
Accessories/Field Installed Options
2. Brass Louver
1
L32BR
2. Pewter Louver
1
L32PW
7. Curved Design - Brass Trim
1
BRTK32C
7. Curved Design - Pewter Trim
1
PWTK32C
30
69D2027
CDV7 Series Gas Fireplace
replacement parts
Standing Pilot — Millivolt control
2I
1
2C
2T
2
4
5
6
3
7
8
9
10,11,12,13
692027
CDV millivolt parts
69D2027
31
CDV7 Series Gas Fireplace
REPLACEMENT PARTS
Standing Pilot – Millivolt Control
Item DescriptionQty.Part No.
1.
2.
2C.
2I.
2T.
3.
4.
5.
6.
7.
8.
9.
9.
Gas Valve Assy.
Pilot Assembly
Replacement Thermocouple
Replacement Igniter and Wire
Replacement Thermopile
Burner Tube
Rocker Switch
Piezo Igniter
Injector Burner Assembly
Venturi
Wire Assembly
Wire Assembly
1
1
1
1
1
1
1
1
1
1
1
1
1
69D2028
69D2029
37D1067
37D1069
37D1068
69D0034
41D0048
14D0503
59D0062
54D0001
69D1119
44D0500
44D0501
Accessories
Item DescriptionQty.Part Number
10. Thermostatic Remote Control
1
RCST, RCT, RCSTE, RCSTEB, RCSITE, WWTD
11. Remote Control ON/OFF
1
RCB, RCMT, RCBE, WMTD
12. Wall Switch Kit
1
MVWS
13. Wall Thermostat Kit
1
WT
32
69D2027
CDV7 Series Gas Fireplace
REPLACEMENT PARTS
logs 3
1
2
Item DescriptionPart no.
1. Rear Log
54D0181
2. Right Log
54D0116
3. Left Log
54D0115
693011
cdv log parts
69D2027
33
CDV7 Series Gas Fireplace
VENT COMPONENTS
HORIZONTAL VENTING
Horizontal Vent Termination Kits
Description
Up and Out Side Wall Termination Kit w/ 10" to 16" 47TLSTK
Adjustable Termination Pipe, 90° Elbow, Firestop, and Cool Touch Termination w/ Siding Shield
Rear Vent Cool Touch Termination w/ Siding Shield for Straight-out Applications and Firestop - 8 pack
7TRVCT/8
Rear Vent Hot Touch Termination w/ Siding Shield for
Straight-out Applications and Firestop - 8 pack
7TRVHT/8
Termination Guard for 7" T.L. Rear Vent Hot Touch
Terminations 97TRVT/7TSVKT)
7TRVTG
Snorkel Termination
7TDVSNORK
7" T.L. DVRTSB Termination Screen Guard
7TBSG
584B
Vent components
Starter Kit
2/25/99 djt
Model Number
Rear Vent Hot Touch Termination Kit w/ 10" to 16" 477TLBRTK
Adjustable Termination Pipe, Firestop, and Hot Touch
Termination w/ Siding Shield
Up and Out Starter Kit w/ 40" Flex Pipe, Firestop, Cool
7FDVSCTK
Touch Termination w/ Siding Shield, and 2 ea. Clamp
Bands
T-Lock Pipe
20" Termination Pipe - 8 pack
47TLT20/8
10" - 16" Adjustable Termination Pipe - 4 pack
47TLAT/4
12" - 18" Adjustable Vent Length 47TL1218
35" - 64" Adjustable Vent Length
47TL3564
8" Vent Pipe - 4 pack
47TL8/4
12" Vent Pipe - 4 pack
47TL12/4
24" Vent Pipe - 4 pack
47TL24/4
s
nt Pipe
36"eVent
n
po tVent Pipe - 30 pack
s m36"
t
n o ven Vent Pipe
ck
ne g C e48"
E
o
o
l
t
4
n
p
j
8p ti o 48"
d Vent
st Pipe - 30 pack
o5m esn esc 9k twi ck
C
Vn l 9c
o
4F ting ctio jTt e 2t5lo/ /99 T-l
8
0
d
/
e
s
5 en s
2i /2 0
V ipe /99 9 tw lo1c0k 0/1
T-Lock Elbows P 25 /9 T- 3/145° Elbow for Vertical/Horizontal Offset
2/ /20 /10
45° Elbow for Vertical Offsets - 8 pack
10 10
/
3
90° Elbow for Vertical/Horizontal Offset
47TL36
47TL36/30
47TL48
47TL48/30
47TLE45
47TLE45/8
47TLE90
90° Elbow for Vertical/Horizontal Offset - 8 pack
47TLE90/8
Shields and Supports
1" Firestop
7DV1FS
3" Firestop
584D
1" Attic Insulation Shield
Vent
Components
584C
Combination Horizontal Offset/Roof Support
90
degree
elbow
Vent components
45 degree 2/25/99
elbow djt
10/20/99 twist lock
2/25/99
djt
584G
584H
3/10/10
T-lock
Venting Components Venting components
7DV3FS
34
10/20/99
twistlock
attic insulation shield
Firestop spacer
2/25/99 djt
2/25/99 djt
3/10/10 T-lock
584I
vent components
offset support
2/25/99 djt
7DV1AIS
7DVCS
69D2027
Limited lifetime warranty policy
Lifetime Warranty
The following components are warranted for life to the original owner, subject to proof of purchase:
Firebox, Combustion Chamber, Heat Exchanger, Grate and Stainless Steel Burners.
Five Year Warranty
The following components are warranted five (5) years to the original owner, subject of proof of
purchase: Ceramic Fiber Logs.
Basic Warranty
MHSC warrants the components and materials in your gas appliance to be free from manufacturing
and material defects for a period of two years from date of installation. After installation, if any of
the components manufactured by MHSC in the appliance are found to be defective in materials or
workmanship, MHSC will, at its option, replace or repair the defective components at no charge to
the original owner. MHSC will also pay for reasonable labor costs incurred in replacing or repairing
such components for a period of two years from date of installation. Any products presented for
warranty repair must be accompanied by a dated proof of purchase.
This Limited Lifetime Warranty will be void if the appliance in not installed by a qualified installer in
accordance with the installation instructions. The Limited Lifetime Warranty will also be void if the
appliance is not operated and maintained according to the operating instructions supplied with the
appliance, and does not extend to (1) firebox/burner assembly damage by accident, neglect, misuse,
abuse, alterations, negligence of others, including the installation thereof by unqualified installers,
(2) the costs of removal, reinstallation or transportation of defective parts on the appliance, or (3)
incidental or consequential damage. All service work must be performed by an authorized service
representative.
This warranty is expressly in lieu of other warranties, express or implied, including the warranty of
merchantability of fitness for purpose and of all other obligations or liabilities. MHSC does not assume
for it any other obligations or liabilities in connection with sale or use of the appliance. It states that
do not allow limitations on how long an implied warranty lasts, or do not allow exclusion of indirect
damage, those limitations of exclusions may not apply to you. You may also have additional rights
not covered in the Limited Lifetime Warranty.
MHSC reserves the right to investigate any and all the claims against the Limited Lifetime Warranty
and decide upon method of settlement.
IF WARRANTY SERVICE IS NEEDED...
1. Contact your supplier. Make sure you have your warranty, your sales receipt and the model/
serial number of your MHSC product.
2. DO NOT ATTEMPT TO DO ANY SERVICE WORK YOURSELF.
MHSC
149 Cleveland Drive • Paris, Kentucky 40361
www.mhsc.com