ANSI Z21.44 : 1994

PART I. CONSTRUCTION
1.1 Scope
1.2 General Construction
1.3 Assembly
1.4 Accessibility
1.5 Combustion Air and Ventilation
1.6 Main Burners
1.7 Primary Air Adjustment Means
1.8 Orifice Spuds and Orifice Fittings
1.9 Automatic Gas Ignition Systems
1.10 Flame Spreaders
1.11 Manual Gas Valves
1.12 Gas Supply Lines
1.13 Bleeds and Vents
1.14 Thermostats
1.15 Automatic Valves
1.16 Gas Appliance Pressure Regulators
1.17 Adjustment of Minimum Input Rating
1.18 Pilot Gas Filters
1.19 Fan and Limit Controls
1.20 Thickness of Materials
1.21 Joints in Heating Surfaces
1.22 Wall Furnace Openings
1.23 Vent-Air Intake Pipes
1.24 Electrical Equipment and Wiring
1.25 Motors and Blowers
1.26 Air Filters
1.27 Cooling Section of Wall Furnace with Cooling Unit
1.28 Heating Element Located Downstream from
      Refrigeration Coil
1.29 Instructions
1.30 Marking
PART II. PERFORMANCE
2.1 General
2.2 Test Gases
2.3 Test Pressures and Burner Adjustments
2.4 Combustion
2.5 Burner Operating Characteristics
2.6 Noise of Operation
2.7 Pilot Operating Characteristics
2.8 Automatic Gas Ignition Systems
2.9 Direct Ignition Systems
2.10 Main Burner and Flame Spreader Temperatures
2.11 Nonload-Bearing Flue Gas Baffle Temperatures
2.12 Thermal Efficiency
2.13 Filters
2.14 Manual Gas Valves
2.15 Gas Appliance Pressure Regulators
2.16 Thermostats
2.17 Automatic Valves
2.18 Manifold and Control Assembly Capacity
2.19 Wall, Floor and Ceiling Temperatures
2.20 Temperature at Discharge Air Opening, and Surface
      Temperatures
2.21 Evaluation of Clothing Ignition Potential
2.22 Wind Tests
2.23 Vent and Vent-Air Intake Terminals
2.24 Joints in Direct Vent Systems
2.25 Allowable Heating Element and Load-Bearing Flue
      Gas Baffle Temperatures
2.26 Cooling Section of Wall Furnace with Cooling Unit
2.27 Heating Element Located Downstream from
      Refrigeration Coil
2.28 Marking Material Adhesion and Legibility
Exhibit A - Flue Loss Calculations
PART III. MANUFACTURING AND PRODUCTION TESTS
PART IV. DEFINITIONS
Appendix A Pertinent References to ANSI Y14.15-1966(R1973)
Appendix B Wire Color Designations
Appendix C Recommended Wire Color Usage
Appendix D Preferred Graphic Symbols of Commonly Used
            Items, Extracted from ANSI/IEEE Standard
            315-1975, Graphic Symbols for Electrical and
            Electronics Diagrams, and Abbreviations for
            These Items
Appendix E Table of Conversion Factors

Covers newly produced, natural draft and fan-induced inlet-air direct vent wall furnaces and direct vent wall furnaces with cooling units made entirely of new, unused parts and materials