FMI WCM-36G User Manual

Size:
3.55 Mb
Download

Wood Burning Fireplace

OWNER’S OPERATION AND INSTALLATION MANUAL

PFS ®

C US

ICC-ES#ESR-2542

(V)GM36, (V)GM42 AND

(V)GM50 Series and WCM-36G,WCM-42GandWCM-50GWood Burning Masonry Fireplaces with Insulation

SAVE THIS BOOK

This book is valuable. In addition to instructing you on how to install and maintain your appliance, it also contains information that will enable you to obtain replacement parts or accessory items when needed. Keep it with your other important papers.

This fireplace is approved for use as a wood burning fireplace or for use with a vented gas log approved to ANS Z21.60 or Z21.84 standards or for use with a vent-freegas log heater approved to ANS Z21.11.2 standard.

This wood burning fireplace complies with UL127-CN/ULC-S610-N87standard as a FACTORY BUILT APPLIANCE.

FOR CANADA: The authority having jurisdiction (such as the municipal building department, fire department, etc.) should be contacted before installation to deter-

mine the need to obtain a permit.

INSTALLER: Leave this manual with the appliance. CONSUMER: Retain this manual for future reference.

For more information, visit www.fmiproducts.com

WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury, property damage or loss of life. Refer to this manual for assistance or additional information. Consult a qualified

installer or local distributor.

Table of Contents

Safety...................................................................

2

Glass Door Installation.......................................

29

Specifications.......................................................

3

Operation and Maintenance Guidelines.............

31

Fireplace Installation............................................

6

Technical Service...............................................

33

Venting Installation...............................................

8

Replacement Parts.............................................

33

Optional Gas Line Installation............................

13

Parts ..................................................................

34

Brick Installation.................................................

14

Accessories........................................................

37

Safety

IMPORTANT: Check local codes before installing this fireplace.

Before beginning the installation of the fireplace, read these instructions through completely.

ThisFMIPRODUCTS,LLCfireplaceandits componentsaresafewheninstalledaccording to this installation manual. Unless you use FMI PRODUCTS, LLC components, which have been designed and tested for the fireplace system, you may cause a fire hazard.

The FMI PRODUCTS, LLC warranty will be voided by and FMI PRODUCTS, LLC disclaims any responsibility for the following actions.

a.Modification of the fireplace, components, doors, air inlet system and damper control.

b.Use of any component part not manufactured or approved by FMI PROD-

UCTS, LLC in combination with a FMI

PRODUCTS, LLC fireplace system.

Proper installation is the most important step in ensuring safe and continuous operation of the fireplace. Consult the local building codes as to the particular requirements concerned with the installation of all factory built fireplaces.

WARNING: Do not install a fireplaceinsertinthisboxunless the manufacturer's instructions with the insert specifically state thisfireplacehasbeentestedfor use with this insert.

FOR YOUR SAFETY

Do not store or use gasoline oranyotherflammablevapors orliquidsinthevicinityofthis or any other appliance.

Due to high temperatures, the appliance should be located out of traffic and away from furniture and draperies.

Do not place clothing or other flammablematerialsonornear the appliance.

Never leave children unattended when a fire is burning in the fireplace.

WARNING: Use solid wood or processed solid fuel firelogs only. When processed wood fuel fire logs are used, do not poke or stir the logs while they are burning. Use only fire logs that have beenevaluatedfortheapplication in fireplace and refer to fire log warnings and caution markings on packaging prior to use.

Thisfireplaceisnotintendedtobe used as a substitute for a furnace to heat an entire home. Use for supplemental heat only.

2

www.fmiproducts.com

122271-01D

Specifications

36" mODELS

29"

22

1/2"

 

14 1/2"

 

22"

26 5/8"

18 3/8" 1913/16"

 

(Ref.)

15 5/8"

 

 

4 1/2"

35 3/8"

1 5/16"

 

36" HEARTH

 

11"

 

67"

 

61"

 

49"

58"

30"

 

7"

1"

1"

36"

4 1/2"

45 1/8"

 

OUTSIDE AIR

ACCESS

GAS LINE

ACCESS

10 1/2"9 1/2"

3 1/2"

71/4"

11"151/4"

Figure 1 - 36" Models (V)GM36 Series and WCM-36G

122271-01D

www.fmiproducts.com

3

Specifications Continued

42" Models

30 1/2"

 

 

 

 

22 3/4"

25"

 

 

 

15 3/4"

 

 

 

 

 

22 1/2"

 

 

 

23 13/16"

29"

 

 

(Ref.)

17 5/8"

 

 

 

 

4 3/8"

41 3/8"

1

5

/16"

5/8"

42" HEARTH

 

 

 

 

 

OUTSIDE

 

11"

AIR

 

ACCESS

67"

58"

 

61"

GAS LINE

 

49"

 

30"

ACCESS

 

 

7"

 

 

42"

1"

51 1/8"

10 1/2"9 1/2"

 

3 1/2"

 

4 1/2"

81/2"

 

13"

 

17"

Figure 2 - 42" Models (V)GM42 Series and WCM-42G

4

www.fmiproducts.com

122271-01D

Specifications Continued

50" Models

38 1/2"

 

 

24"

33"

 

19 1/4"

 

 

 

22

23 13/16"

 

1/2"

 

 

(Ref.)

28 1/2"

 

 

17 5/8"

 

 

43/8"

49 3/8"

1 5/16"

 

50" HEARTH

 

 

 

 

OUTSIDE

 

11"

 

AIR

 

 

ACCESS

 

 

 

67"

58"

 

GAS LINE

 

 

61"

49"

 

ACCESS

 

30"

 

 

 

7"

 

10 1/2"9 1/2"

 

 

 

3 1/2"

 

1"

4 1/2"

 

 

50"

8 1/2"

 

59"

 

13"

 

 

 

17"

Figure 3 - 50" Models (V)GM50 Series and WCM-50G

122271-01D

www.fmiproducts.com

5

Fireplace Installation

selecting location

To determine the safest and most efficient location for the fireplace, you must take into consideration the following guidelines:

1.The location must allow for proper clearances (see Figures 4 and 5).

2.Consider a location where fireplace will not be affected by drafts, air conditioning ducts, windows or doors.

3.A location that avoids cutting of joists or roof rafters will make installation easier.

4.An outside air kit is available with this fireplace (see Optional Outside Air Kit on page 8).

Minimum clearance to combustibles

Back and sides of fireplace

1 1/2" min.*

Front of fireplace

 

48" min.

Floor**

 

0" min.

Perpendicular wall to opening

18" min.

36" Models

 

12" min.

Top spacers

 

0" min.

Mantel clearances

see Mantels, page 7

Chimney outer pipe surface

2" min.

36" Model

 

1" min.

* Not required at nailing flanges ** See step 2 of Framing

Framing

1.Frame opening for fireplace using dimensions shown in Figures 4 and 5.

2.If fireplace is to be installed directly on carpeting, tile (other than ceramic) or any combustible material other than wood flooring, fireplace must be installed upon a metal or wood panel extending full width and depth of fireplace.

3.Set fireplace directly in front of this opening and slide unit back until nailing flanges touch side framing.

4.Check level of the fireplace and shim with sheet metal if necessary.

5.Before securing fireplace to prepared framing, ember protector (provided) must be placed between hearth extension (not supplied) and under bottom front edge of fireplacetoprotectagainstglowingembers falling through. If fireplace is to be installed on a raised platform, a Z-typeember protector (not supplied) must be fabricated to fit your required platform height. Ember protector should extend under fireplace a

minimum of 1 1/2". Ember protector should be made of galvanized sheet metal (28 gauge minimum to prevent corrosion.

6.Using screws or nails, secure fireplace to framing through flanges located on sides of fireplace.

WARNING: Do not pack requiredairspaceswithinsulation or other materials.

Minimum/Maximum Chimney Height for Residential Installation

Minimum height of chimney, measured from base of fireplace to flue gas outlet of termination, is 16 feet for straight flue or a flue with one elbow set. Maximum distance between elbows is 6 feet. For systems with two elbow sets, minimum height is 22 feet. Maximum height of any system is 50 feet.This measurement includes fireplace, chimney sections and height of termination assembly at level of the flue gas outlet (see Figure 15, page 11).

45.25" (36" Models)

51.25" (42" Models)

59" (50" Models)

67.125"

58.125"

30.125"28.250" (36" Models)

Figure 4 - Framing Dimensions

 

Maintain 1 1/2"

61" (36" Models)

Clearance

at Sides and

65" (42" Models)

Back of Fireplace

71" (50" Models)

 

 

1 1/2" Clearance

 

Not Required at

 

Nailing Flanges

86.5" (36" Models)

92" (42" Models)

100" (50" Models)

Figure 5 - Corner Installation

6

www.fmiproducts.com

122271-01D

Fireplace Installation

Continued

Hearth Extension

A hearth extension projecting a minimum of 20" in front of and a minimum of 12" beyond each side of fireplace opening is required to protect combustible floor construction in front of fireplace. Fabricate a hearth extension using a material which meets the following specifications: a layer of noncombustible, inorganic material having a thermal conductivity of K=0.84 BTU IN/FT, HR. F (or less) at 1" thick. For example, if the material selected has a K factor of 0.25, such as glass fiber, the following formula would apply:

0.25 x 1.0" = 0.30" thickness required

0.84

Thermal conductivity "K" of materials can be obtained from manufacturer or supplier of noncombustible material. If hearth extension is to be covered, use noncombustible material such as tile, slate, brick, concrete, metal, glass, marble, stone, etc. Provide a means to prevent hearth extension from shifting and seal gap between fireplace frame and hearth extension with a noncombustible material

(see Figure 6).

WARNING:Hearthextension

is to be installed only as shown

in Figure 6.

Fireplace Front

Seal Gap

 

Ember Protector

 

Fireplace Front

 

Raised Hearth

 

Ember Protector

Hearth

 

Extension

Fireplace Front

Seal Gap

Elevated

 

Ember Protector

Figure 6 - Hearth Extension

Mantels

Amantelmaybeinstalledifdesired(seeFigure

7). Woodwork such as wood trims, mantels or any other combustible material projecting from front face must not be placed within 12" (36" Models) or 18" (42/50" Models) of fireplace opening.Combustiblematerialsabove12"(36"

Models) or 18" (42/50" Models) and projecting more than 1 1/2" from fireplace must not be placedlessthan15"(36"Models)or21"(42/50" Models) from the top opening of the fireplace (NFPA STD 211, Sec.7-3.3.3).

Mantels or any other combustible material also may come up to side edge of black metal face of fireplace as long as projections from front face fall within limit shown in Figure 7.

 

 

12 1/4" Ref.

6"

 

 

 

Ref.

33°

 

Models)

 

3" Nom.

 

11/2" Max.

(36" (42/50"Min. Models)

Min.

Min.

(42/50"

Min.

Models)

 

15"

(36"

18"

Models)

21"

12"

 

Fireplace Opening

Combustible

Material

Safe

Zone for

Projection of

Combustible

Materials

Upper

Section of

Fireplace

Top View of Fireplace

7.75" (36" Models)

FIREBOX

11.5" (42/50" Models)

 

SAFE ZONE

3" Max.

4.5"

33°

Combustible

Min. to

Material Must

Perpendicular

Not Overlap

Side Wall

Front Face

12" - 36" Models

 

18" - 42/50" Models

Figure 7 - Mantel Clearances to

Combustible Material

122271-01D

www.fmiproducts.com

7

Venting Installation

Optional Outside air Kit (Model ak4/ak4f)

The installation of an outside air kit should be performed during the rough framing of the fireplace due to the nature of it's location.

Outside combustion air is accessed through a vented crawl space (AK4F) or through a sidewall (AK4).

WARNING: The opening in the collar around the chimney at the top of the fireplace must not be obstructed. Never use blown insulation to fill the chimney enclosure.

CAUTION: Combustion air inlet ducts shall not terminate in attic space.

The maximum height for the air vent can not exceed 3 feet below the flue gas outlet of the termination.

Secure to Collars with Metal Tape, Screws or Straps (Min. of 1/4" x 20" in size)

Air Inlet

Location Must Allow

For Bushes or Snow

 

Air Inlet

 

Eyebrow

Vented Crawl Space

Vent Hood

Required for

(Check Local Codes

Wall Installation

Before Installing in a

 

Vented Crawl Space)

 

Figure 8 - Outside Air Kit

Chimney Pipe

The FMI PRODUCTS, LLC chimney system consists of 12", 18", 24", 36" and 48" snaplock, double-wallpipe segments, planned for maximum adaptability to individual site requirements. Actual lengths gained after fitting overlaps must be taken into consideration (lineal gain) and are given in the lineal gain chart (see Figure 9). Lineal Gain is the actual measurable length of a part after two or more parts are connected. For Canada, use chimney parts designated "HT".

LINEAL GAIN

PART NO.

DESCRIPTION

GAIN

Georgian

Fireplace

66 1/2"

12-12DM

Pipe Section

10 5/8"

12-12HT

 

 

18-12DM

Pipe Section

16 5/8"

18-12HT

 

 

24-12DM

Pipe Section

23 5/8"

24-12HT

 

 

36-12DM

Pipe Section

34 5/8"

36-12HT

 

 

48-12DM

Pipe Section

46 5/8"

48-12HT

 

 

RLT-12D

Round Termination

7 3/4"*

RLT-12HT

 

 

STL-12D

Square Chase-Top

7" to 15"*

 

with Slip Section

 

* The lineal gain for the terminations is measured to the flue gas outlet height.

15" Galvanized Outer Pipe

12 3/8"

Hemmed

Stainless

End

Inner Pipe

 

Figure 9 - Lineal Gain

Assembly and installation of double wall chimney system

Each double wall chimney section consists of a galvanizedouterpipe,astainlesssteelinnerflue pipe and a wire spacer.The pipe sections must be assembled independently as the chimney is installed. When connecting chimney directly to the fireplace, the inner flue pipe section must be installed first with the lanced side up. The outer pipe section can then be installed over 5 the flue pipe section with the hemmed end up. Press down on each pipe section until the lancessecurelyengagethehemonthefireplace starter. The wire will assure the proper spacing between the inner and outer pipe sections.

8

www.fmiproducts.com

122271-01D

Venting Installation

Continued

Continue to assemble chimney sections as outlined above, making sure that both the inner and outer pipe sections are locked together. When installing double wall snap-lockchimney together, it is important to assure the joint between the chimney sections is locked. Check by pulling chimney upward after locking. The chimney will not come apart

if properly locked. It is not necessary to add screws to keep the chimney together (exception, see Figure 10).

Using ELBOW offsets (30E-12DM)

1.To achieve desired offset, you may install combinations of 12", 18", 24", 36" and 48" length of double wall pipe (see offset chart and Figure 10).

OFFSET

RISE

 

CHIMNEY LENGTH

 

A

B

12"

18"

24"

36"

48"

4 3/8"

16 3/8"

 

 

ELBOW

SET

ONLY

 

 

9 3/4"

25 1/2"

1

 

 

 

 

 

 

12 3/4"

30 3/4"

 

 

1

 

 

 

 

15"

34 3/4"

 

 

 

1

 

 

 

18"

40"

1

 

1

 

 

 

 

21 1/4"

46 1/4"

 

 

 

 

1

 

 

23 3/4"

49 1/4"

 

 

1

1

 

 

 

27 3/4"

56 3/4"

 

 

 

 

 

 

1

30"

60 3/4"

 

 

1

 

1

 

 

33"

66"

 

 

 

 

 

 

1

36"

71"

 

 

1

 

 

 

1

38 1/4"

75"

 

 

 

 

2

 

 

41 1/4"

80 1/4"

1

 

1

 

1

 

 

45"

86 3/4"

 

 

 

 

2

 

 

46 3/4"

89 1/2"

1

 

1

 

 

 

1

51"

97"

 

 

 

 

1

 

1

53 1/4"

101"

 

 

 

 

2

 

 

56 1/4"

106 1/4"

 

 

 

 

 

 

2

59 1/4"

111 1/2"

 

 

1

 

1

 

1

61 3/4"

115 1/2"

1

 

 

 

 

 

2

64 3/4"

120 3/4"

 

 

1

 

 

 

2

68 1/4"

127"

 

 

 

 

2

 

1

70"

130"

1

 

1

 

 

 

2

74 1/4"

137 1/2"

1

 

 

 

2

 

1

76 3/4"

141 1/2"

 

 

1

 

2

 

1

79 3/4"

146 3/4"

 

 

 

 

4

 

 

OFFSET CHART (22-50FT. SYSTEM HEIGHT)

2.Chimney weight above offset rests on return elbow. Straps must be securely nailed to rafters or joists (see Figure 11, details A and B).

3.Maximum length of pipe between supports (return elbow or 12S-12DM)is 6' of angle run. Maximum of two 6' angle run sections per chimney system (see

Figure 12, page 10).

4.All pipe connections between the offset and return must be secured with two screws on the outer pipe only (see Figure 10). Do not penetrate the inner stainless.

See Detail A

 

 

2" Min.

Straps

Detail BStraps

 

 

See Detail B

Angle Firestop

 

Straps

Straps

 

 

 

 

Detail A

 

Return Elbow

Screws

Figure 11 - Ceiling Support Pipe

12S-12DM

 

B

A

Figure 10 - Elbow Offset

122271-01D

www.fmiproducts.com

9

Venting Installation

Continued

Return

 

 

Return

 

Elbow

 

 

Elbow

 

Offset

Offset

 

Return

 

Elbow

 

Elbow

 

Elbow

6' Max.

 

6' Max.

Ceiling

 

 

 

Return

 

 

Support Pipe

 

Return

 

12S-12DM

6' Max.

Elbow

 

 

Elbow

 

 

 

6' Max.

Offset

Offset

 

 

 

Offset

Elbow

6' Max. Elbow

6' Max.

Elbow

 

 

 

A

 

B

C

Figure 12 - Typical Offset Terminations

Firestop Spacers (FS-10,1100EFS-10DMfor 36" Models)

Firestop spacers are required at each point where the chimney penetrates a floor space.

Their purpose is to establish and maintain the required clearance between the chimney and the combustible materials. When the pipe passes through a framed opening into a living space above, the firestop must be placed onto the ceiling from below as shown in Figure 13.

They also provide complete separation from one floor space to another or attic space as required by most codes. When the double wall pipe passes through a framed opening into an attic space, the firestop must be placed into an attic floor as shown in Figure 14.

Existing

Ceiling

Frame

Firestop

Spacer

Screws or Staples

(Min. of 8)

Figure 13 - Firestop Spacer with Living Space Above Ceiling

Screws or Staples Firestop (Min. of 8)

Spacer

Existing

Ceiling

Frame

Figure 14 - Firestop Spacer with Attic Space Above Ceiling

Penetrating roof

To maintain a 1" (36" Models) or 2" (42/50"

Models) clearance to the pipe on a roof with a pitch, a rectangular opening must be cut.

1.Determine center point through which pipe will penetrate roof.

2.Determine center point of roof. Pitch is distance the roof drops over a given span, usually 12". A 6/12 pitch means that roof drops 6" for each 12" measured horizontally down from roof rafters.

3.Use roof opening chart (Figure 15, page

11)to determine correct opening length and flashing required.

4.Remove shingles around opening measured. Cut out this section.

10

www.fmiproducts.com

122271-01D