CSA 2.3 : 2016

Preface
1 Scope
2 Reference publications
3 Definitions
4 Construction
5 Performance
6 Direct vent central furnaces construction
7 Direct vent central furnaces performance
8 Recreational vehicle central furnaces construction
9 Recreational vehicle central furnaces performance
10 Central furnaces for outdoor installation construction
11 Central furnaces for outdoor installation performance
12 Manufacturing and production tests
13 Items unique to Canada
Annex A (normative) - Outline of lighting instructions for
        appliances equipped with continuous pilots
Annex B (normative) - Outline of operating instructions
        for appliances equipped with intermittent pilot or
        interrupted pilot systems
Annex C (normative) - Outline of operating instructions
        for appliances equipped with direct ignition
        systems
Annex D (normative) - Outline of operating instructions
        for appliances equipped with continuous pilots
        for recreational vehicle installation only
Annex E (normative) - Outline of operating instructions
        for appliances equipped with intermittent or
        interrupted pilot systems for recreational
        vehicle installation only
Annex F (normative) - Outline of operating instructions
        for appliances equipped with direct ignition
        systems for recreational vehicle installation
        only
Annex G (normative) - Corrosion resistance criteria
        and test method
Annex H (normative) - Provisions for listed gas appliance
        conversion kits (optional)
Annex I (normative) - Flue loss calculations
Annex J (normative) - Jacket loss calculations
Annex K (normative) - Provisions for listed high altitude
        conversion kits (optional)
Annex L (normative) - Sample failure modes and effects
        analysis for component miswiring
Annex M (normative) - Recommended wire color usage
Annex N (informative) - Combustion air quality (list of
        contaminants)
Annex O (informative) - Pertinent references to ANSI Y14.15
Annex P (informative) - Wire color designations
Annex Q (informative) - Preferred graphic symbols of
        commonly used items, extracted from ANSI/IEEE 315,
        Graphic Symbols for Electrical and Electronics
        Diagrams, and Abbreviations for these Items
Annex R (informative) - Table of conversion factors
Annex S (informative) - Legibility and design of safety
        information in furnace markings and manuals

Pertains to automatically operating gas-fired central furnaces, hereinafter referred to as furnaces, for installation in residential, commercial, and industrial structures including furnaces for direct vent, recreational vehicle, outdoor, and manufactured (mobile) homes.