Burnham MMII manual VI. Venting / Air Intake Piping, Component, General Guidelines

VI. Venting / Air Intake Piping

NOTICE

The gasketed vent system components pictured below in Figure A are being phased in and each vent component is interchangeable with the previously supplied gasket-less venting components. The newer vent components are generally quicker and easier to join, as they do not require the sealant application and their clamp bands are attached.

In the event a gasketed vent component and a gasket-less vent component must be intercon- nected, follow the instructions associated with Figure 10B or 10C. The two guiding principles of these instructions are as follows:

1) Any joining of vent components that involves at least one gasket-less vent component always requires the sealant application.

2) The female end of a gasket-less
vent component always requires
a clamp band, regardless of the
design of the mating male vent	Figure A: Burnham Vent
component.

Each gasket-less vent component is supplied with a clamp band and sealant.

A Vent Transition Kit, part number 6116302, is available that contains one clamp band and one 3 ounce tube of sealant.

A.General Guidelines.

1.Vent system installation must be in accordance with National Fuel Gas Code, ANSI Z223.1, Venting of Equipment, or applicable provisions of local building codes. Contact local building or fire officials about restrictions and installation inspection in your area.

2.This appliance requires a Special Gas Vent. The product is designed to use Burnham supplied

AL 29-4C®Stainless Steel vent system components. The following manufacturer's offer similar AL 29- 4C® components and are approved for use with this product: Heat-Fab Inc. - Saf-T-Vent, Flex-L International Inc. - Star-34, Protech Systems, Inc. - FasNSeal™, and Z-Flex U. S., Inc. - Z-Vent. The use of these alternate manufacturer's venting systems will require adapters to connect to the Burnham supplied vent connector and vent terminal. These adapters are not supplied with this unit and should be obtained from the supplier of the alternate manufacturer's venting system. See Table 7 for complete parts list.

WARNING

Do not use this boiler with galvaniz ed, 304 or 316 stainless steel or any other non AL29-4C®based vent systems.

3.Vent length restrictions are based on equivalent length of vent pipe (total length of straight pipe plus equivalent length of fittings). Maximum vent length is listed in Table 6. Do not exceed maximum vent/ air intake lengths. Table 7 lists equivalent length for fittings. Do not include Vent Terminal or Vent Connector in equivalent feet calculation.

Table 6: Vent/Air Intake Length

3" Vent Pipe (Equiv. Ft.)		4" Air Intake Pipe (Equiv. Ft.)
Min.	Max.	Min.	Max.
8	70	8	70

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