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Z240 MH SERIES-16 (R2021)
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Preface
This is the fourth edition of the CSA Z240 MH Series of Standards, Manufactured homes. It supersedes the previous edition, published in 2009, and in 1992 and 1986 under the title Mobile Homes.
Significant changes since the previous edition include the following:
a) In CSA Z240.0.1, General requirements for manufactured homes:
i) transfer of technical requirements that reference codes to CSA Z240.2.1;
ii) deletion of provisions duplicating requirements in CSA Z240.2.1; and
iii) reference to CSA A277 for marking and installation instructions.
b) In CSA Z240.2.1, Structural requirements for manufactured homes:
i) revision of title to recognize the scope of the standard;
ii) elimination of unnecessary duplication and some further alignment with the requirements of the National Building Code of Canada (NBC), through a general reference to the NBC and retention of specific provisions as necessary to address issues particular to manufactured homes; and
iii) updating and addition of requirements to improve the energy efficiency of manufactured homes.
c) In CSA Z240.4.1, Installation requirements for gas- and oil-burning appliances in manufactured homes:
i) expansion of scope to include requirements for oil-burning appliances to avoid duplication of many provisions; and
ii) retention of provisions only as necessary to address issues particular to manufactured homes.
d) In CSA Z240.5.1, Installation requirements for oil-burning appliances in manufactured homes:
i) withdrawal; and
ii) provisions necessary to address issues particular to manufactured homes moved to CSA Z240.4.1.
e) In CSA Z240.9.1, Load calculation and duct design requirements for heating and cooling of manufactured homes:
i) withdrawal; and
ii) provisions necessary to address issues particular to manufactured homes moved to CSA Z240.2.1.
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Z240.0.1-16 - General requirements for manufactured homes
Scope
1.1
This Standard specifies general requirements for manufactured homes, including technical requirements, and requirements on quality control, markings, and provision of printed instructions.
1.2
In this Standard, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the Standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements.
Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
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Z240.2.1-16 - Technical requirements for manufactured homes
Scope
1.1
This Standard specifies the minimum requirements for materials, products, equipment, and practice needed to ensure that manufactured homes will provide adequate
a) structural strength and rigidity, including resistance to vibration and deflection;
b) protection against corrosion, decay, insects, and other similar destructive forces;
c) protection against the hazards of fire;
d) safety in use;
e) resistance to unwanted entry;
f) indoor conditions;
g) sanitation; and
h) thermal, HVAC and plumbing system performance to avoid excessive energy use.
1.2
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.
1.3
In this Standard, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the Standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements.
Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
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Z240.4.1-16 - Installation requirements for oil- and gas- fired appliances in manufactured homes
Scope
1.1
This Standard applies to the factory installation of oil- and gas-fired appliances, equipment, components, accessories, piping and tubing in manufactured homes, and specially designed or modified units.
Note: Specially designed or modified units include industrial or commercial trailers.
1.2
In this Standard, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the Standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements.
Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
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