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16

 

A “B-type” venting system must be connected to the 

appliance for venting to outside of building. The following 

section is provided as a guide to a standard B-type vent 

installation.

 

Standing  codes  requirements  concerning  B-type  vent 

installations may vary within your state, province or local codes 

jurisdiction. Therefore, it is recommended that you check with 

your local building codes for specific requirements or in absence 

of local codes, follow Section 7.0 of the current National Fuel 

Gas Code ANSI Z223.1/NFPA 54 for Category I systems using 

double wall B-1 vent pipe.

 

This gas appliance must be vented to the outdoors only 

and may not be terminated into an attic space or into a chimney 

flue servicing a solid fuel burning appliance.

 

This appliance may be vented through a manufactured 

chimney system or a masonry chimney using a B-vent adapter 

or a chimney liner system if the system is listed, inspected 

and approved by local codes and/or building authorities. 

The examples shown in Fig. 24 are typical of most B-vent 

installations and codes practices.

Example 1:

 Shows the minimum allowable system height and 

lateral offset for an inclination of 60° or greater. 

 

Code specifies that offsets of 60° or greater are considered 

horizontal and must follow the 75% rule for lateral to total 

vertical system height.

 

Codes also allows only one offset in the total system when 

at 60° or greater.

 

The total vertical height in this example represents the 

minimum height of 8 ft. and therefore the allowable lateral is 6 

ft. when the 75% rule applies.

 

If the lateral length must exceed 75% then the system must 

be sized in accordance with the Category I venting tables.

Example 2:

 Shows a multiple offset each at a 45° inclination.

 

Multiple offsets are permitted if they do not exceed a 45° 

inclination. The total lengths of the two offsets are not required 

to meet the 75% allowable rule.

Example 3:

  Shows  a  single  offset  at  45°  of  inclination  and 

therefore the lateral length at 10 ft. of offset does not have to 

meet the 75% rule.

 

In each case the offsets must be supported and firestops 

must be positioned wherever the vent must pass through a 

sub-floor, ceiling joist or an attic overhang.

 

The vent pipe must terminate vertically into a listed type 

vent cap and extend a sufficient height through an approved 

roof flashing, roof jack or a roof thimble. At all points the listed 

clearances must be maintained.

  Vent terminations must be located in accordance with 

height and proximity rules of NFPA No. 54. 

 

These rules apply to vents at 12” diameter or less and 

require a minimum height in accordance with the roof pitch and 

a minimum of 8 ft. distance from a vertical wall or obstruction 

(see Fig. 25).

  If venting horizontally through a side wall becomes 

necessary, a listed thimble approved for use with B-type vent 

must be used. Check with your local codes before venting 

through a side wall.

 

Some codes areas allow the use of existing B-type vent 

systems if the system is at or above the recommended diameter 

of the flue.

 

The  flue  connection  must  be  made  using  listed  B-type 

connectors and the existing system must be code inspected 

for damage and proper installation.

 

It is not recommended that this appliance be common 

vented with an existing gas burning appliance. However, if it 

becomes necessary to common vent this appliance, the venting 

system must be sized and configured in accordance with the 

common venting guides Appendix G of the current National 

Fuel Gas Code NFPA No. 54/ANSI Z223.1.

Note:

 Before connecting this appliance to an existing vent  

system or a common venting system, consult with your local 

architect, planner, or building official.

Venting Installation

Venting Installation

Figure 24

Содержание MASON-LITE MGFP39

Страница 1: ...flue meeting the requirements of the ANSI Z21 50 standard Solid fuels shall not be burned in this appliance This appliance must be vented vertically through the roof This appliance is not for install...

Страница 2: ...mes MFP587C GAS TYPE FOR MANTEL CLEARANCES CONSULT OWNER S MANUAL DO NOT REMOVE THIS LABEL See MFI s installation and operating instructions for this model Contact local building officials about restr...

Страница 3: ...anchoring components WARNING Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or pe...

Страница 4: ...M P N DESCRIPTION QTY 1 MFP39 1 MFP44 1 MFP49 1 HEARTH Left or Right 2 2 MFP39 2 MFP44 2 MFP49 2 REAR WALL 3 3 MFP39 3 MFP44 3 MFP49 3 SIDE WALL 7 3A MFP39 3A MFP44 3A MFP49 3A SIDE WALL with 4 openin...

Страница 5: ...ith the minimum firebox dimensions and venting requirements met see table on this page This appliance is designed to burn with yellow flames adequate ventilation is absolutely necessary Table 1 Produc...

Страница 6: ...staller is expected to understand each phase completely before going on to subsequent instructions Attention Be advised that all the illustrations in this manual are for general reference only Do not...

Страница 7: ...rts and accessories Use of other controls parts and accessories which are not designed for use with MASON LITE gas appliances is prohibited and will void all warranties certifications listings and bui...

Страница 8: ...moother and above all safer for everyone concerned At the least reading these procedures will save you time and at the most it will prevent any malfunction that could result in property damage or seri...

Страница 9: ...the addition of floor joists to align with the anchor brackets allows the brackets to be directly connected to the floor joists Note that additional floor joists may be required to support the weight...

Страница 10: ...cent at time of installation and used under dry conditions the deflection resulting from L 0 5D is permitted to be substituted for the deflection resulting from L D Note that MASON LITE cannot accept...

Страница 11: ...pieces 3 8 rebar x 36 long included with unit Eight 8 ea All thread x 12 long with nuts and washers ALL UNITS Three 3 90 lb bags of ready mix concrete with 1 4 or smaller aggregate SURFACE CRACKS The...

Страница 12: ...slab Check for surface flatness level if necessary Figure 11 1 2 away from edges 1 2 mortar bead typical Hearth section shown prepared for Right Side position Apply mortar bead to all mating surfaces...

Страница 13: ...The beveled face lines up with the inward angles of the lintel sides Resulting top surfaces should be level Figure 17 Lower Dome Sides Rating Plate faces inside 12 Verify that the smoke dome side fro...

Страница 14: ...ection of the shelf As a guide figure that a 10 ten inch wide shelf should be 20 twenty inches above the appliance opening 2 Walls That Adjoin Safety codes and all practical outlooks insist that your...

Страница 15: ...ey Requirements for Height and Clearance When installed the maximum overall height of the chimney system from bottom of appliance to the top termination chimney is 40 feet The minimum installed height...

Страница 16: ...bilizer When installing the stabilizer pull out the support straps with a good amount of tension and hammer to the frame 4 If your offset sections go over 6 six feet in length you will need to give ad...

Страница 17: ...rmitted if they do not exceed a 45 inclination The total lengths of the two offsets are not required to meet the 75 allowable rule Example 3 Shows a single offset at 45 of inclination and therefore th...

Страница 18: ...water or in a high humidity area the manufacturer recommends a top quality rust proof paint especially formulated for metal Follow the paint manufacturer s directions applying the paint well before y...

Страница 19: ...all elements of the appliance and chimney system must be completely dry This means that the unit must stand without any firing for a minimum of 28 days Only after that period of time can a first ligh...

Страница 20: ...LIGHT THE APPLIANCE WITH THE WALL SWITCH Move the ON REMOTE OFF wall switch to the ON position Figure 41 This transmits a rapid series of sparks at the pilot head and will ignite the gas TO SHUT DOWN...

Страница 21: ...rwater Attempted operation may result in fire or explosion resulting in property damage personal injury or loss of life D A appliance screen must be in place when the system is burning Provisions for...

Страница 22: ...s may differ depending upon the size of the set purchased Be sure you know the model number and size of your set when ordering replacement or optional parts and accessories Receiver pre assembled into...

Страница 23: ...ee Fig 12 3 4 Be sure gas to the appliance is off Remove the adapter connected to the flex connector pre installed on the burner system Attach the adapter to the gas supply stub using a pipe compound...

Страница 24: ...ound the switch box Leave the front of the switch box clear for control access 2 Repeat this process for the supplied lava coals on top of the already placed lava granules Note DO NOT place any lava m...

Страница 25: ...have developed during shipment Keep some embers for future placement along the front log Ember placement detail Place the front log log 2 as shown Rest the log with its back against the burner assemb...

Страница 26: ...25...

Страница 27: ...26...

Страница 28: ...27...

Страница 29: ...28...

Страница 30: ...29...

Страница 31: ...on a periodic examination and cleaning of the solid fuel burning appliance venting system should be conducted by a qualified professional service technician Any safety screen or guard removed for serv...

Страница 32: ...31...

Страница 33: ...32...

Страница 34: ...33...

Страница 35: ...ated 2 Debris around the control Inspect the control and pilot to be sure it is free of any dirt or debris 3 Insects and burner blockage Check the burner ports and the air mixer if present to make sur...

Страница 36: ...ld 4 Appliance will not shut OFF a Control Switch lead wires to the valve may be shorted together or on wrong terminals a See wiring diagram previous page System takes 15 20 seconds to complete shutdo...

Страница 37: ...ncrete slab The concrete strength and durability shall comply with Sections 1903 1904 and 1905 of the International Building Code IBC TABLE R402 2 MINIMUM SPECIFIED COMPRESSIVE STRENGTH OF CONCRETE MI...

Страница 38: ...ly b Lines defining areas are approximate only Local conditions may be more or less severe than indicated by region classification A severe classification is where weather conditions result in signifi...

Страница 39: ...his warranty makes MFI or any affiliate thereof liable in any respect for any injury or damage to the building or structure in which the appliance has been installed or to the persons or property ther...

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