### Addenda to American National Standard Z21.1-1974 for 

# HOUSEHOLD COOKING GAS APPLIANCES

Approved November 25, 1974 AMERICAN NATIONAL STANDARDS INSTITUTE, INC.

Secretariat AMERICAN GAS ASSOCIATION 1515 Wilson Boulevard

Arlington, Va. 22209 ANSI Z21.1a-1974

## PREFACE

The standards set forth herein apply to the twentieth edition ofAmerican National Standard for Household Cooking Gas Appliances, Z21.1-1974, and supersede corresponding standards therein. Following their preparation by the supervising subcommittee, they were accepted by American National Standards Committee Z21 and subsequently approved as American National Standard by the American National Standards Institute, Inc.

Copyright

# © 1974, American Gas Association Permission is granted to republish material hereininlaws or ordinances, and in regulations, administrative orders, or similardocumentsissuedby public authorities. Those desiring permission for other republication should consult the American Gas Association, Laboratories, 8501 East Pleasant Valley Road, Cleveland, Ohio44131.
Printed in U.S.A.

### Addenda to 

### AMERICAN NATIONAL STANDARD FOR HOUSEHOLD COOKING GAS APPLIANCES

PART 

### I 

### CONSTRUCTION

(Former Tables II and III become Tables III and IV, respectively.) TABLE II MINIMUM ACCEPTABLE WALL THICKNESS FOR ALUMINUM SEMI-RIGID TUBING 1.1 SCOPE 1.1.3 This standard also covers all electrical equipment, wiring and accessories built in or supplied for use with a household cooking appliance. It 

### covers only such appliances having a current limitation of20amperesandwhoseelectricalequipment, wiring and accessories are installed in accordance with the National Electrical Code, ANSI Cl-1971. This standard covers (a) gas cooking appliances which use only gasforcookingandwhich are designed for connection to a nominal 120-volt electrical supply, or (b) gas cooking appliances which also use electrical energy for cooking and which are designed for connection toeitheranominal 120-voltor 240-volt electrical supply. 1.1.4 Household cooking applianceshavingsections which use electrical energy for cooking shall comply with the applicable provisions ofAmerican National Standard for Household Electric Ranges, C33.53-1969 (UL 858). Outside Diameter,

Inches

1/8 3/16 1/4 5/16 3/8 7/16 

### 1/2 9/16 5/8 

### 3/4 7/8 Minimum Acceptable Wall Thickness Inches 0.025 0.025 0.029 0.029 0.032 0.032 0.038 0.038 0.038 0.045 0.045

(Former 1.1.4 through 1.1.7 become 1.1.5 through 1.1.8, respectively.)

1.2 GENERAL CONSTRUCTION AND ASSEMBLY 1.2.14 The centers ofknobs or buttons located on the backguard ofan appliance, excludingsinglepurpose, time-or-day set knobs of.clocks, shall be at least 6 inches above the plane of the utensil support surface. (Former 1.2.14 through 1.2.26 become 1.2.15 through 1.2.27, respectively.)

1.4 GAS SUPPLY LINES 1.4.10 Aluminum semi-rigid tubing employed as gas conduit shall have a wall thickness in accordance with Table II. (Former 1.4.10 and 1.4.11 become 1.4.11 and 1.4.12, respectively.) 1 

### 1.5 MANUAL GAS VALVES 1.5.5 Each manually operated main gas burner control shall be clearly identified with the burner it serves. The identification shall be visible at a distance 3 feet in front of the control when viewed from a height of 5 feet. Markings on user interchangeable parts are not consideredacceptable. 1.5.13 Each manually operatedmaingasburner control shall have markings to clearly and unmistakably indicate both the "full on" or heat level position and the "off" position. These markings shall allow interpretation at a distance 3 feet in front of the appliance when viewed from a height of5 feet. 1.5.14 Control handle covers, ifused, shall be designed so thattheycannotcoverthecontrolhandle when the control is in other than the"off" position. 1.5.15 A top burner control shall necessitate not less than two operations, or other equivalent means, to turn on and shall necessitate only one operation to turn off.1.5.16 There shaH be a visible indication that a burner control is in otherthanthe "off" tion. 1.21 FLUE COLLARS

1.21.2 A flue collar when on a builtin unit, shaH be the body ofthe appliance. The outlet collar shaH be at least 1 inches high. The appliance shall be provided access openings through which the connection between the draft hood outlet and flue can be visually inspected from the front of the appliance. Means for the mechanical attachment of the ventpipe to the flue collar shaH be provided. A single screw, or theequivalent,isacceptableforthispurpose.The construction shallbesuchthattheattachmentmeans is accessible when the appliance is installed as specified in the manufacturer's installation instructions. Method ofTest A pan of the appropriate size, as specified in Table XI shaH be placed on each topburner utensil support. A top burner control shall be adjusted from the "off" position through all operating positions available to the user. An indication that the burner is in any position, other than the "off" position, shall be visible from any point on a line 10 feet from the front ofthe appliance and within the projected width ofthe appliance, when viewed from a height of5feet. This procedure shaH be repeated with each top burner control. 1.23 ELECTRICAL .a.:."'''U

.... ANDWffiING

of thethe**~nl"nlv** cord shaU be terminated The cord shall 1.23.3 Household cooking appliances shaH not be provided with convenienceoutlets. 1.23.4 The cord provided to connect a unit to a nominal 120-volt electricalsupplyshaHconsistof a three-conductor grounding type flexible cord of one ofthe types shownin TableV, or its equivalent, and a suitable approved attachmentplug cap ofthe parallel blade grounding type, constructed in accordance with the applicable American National Standard Dimensions of Caps, Plugs and Receptacles: C73.11-1972 (General Purpose 125 volts 15 Amperes, 2 Pole, 3 Wire Grounding or C73.12-1972 (General 125 Volts, Am,pel"eS, .2 3 Appliances for connection 

### to a nominal 240- volt electrical supply shall be provided with either provisions for the permanent connection ofthe appliance 

### to the power as outlined in American National Standard Electric Ranges, C33.53-1969 858), or (2) a flexible cord of type SRD, SRDT, S, SO or ST which terminates in an approvedattachmentplugcapsuitable for the electrical system oCtheunitandconstructed in accordancewiththeapplicableAmericanNational Standard Dimensions of Caps, and Receptacles: C73.20-1972 (General Purpose 250 Volts, 15 2 3 Wire Grounding Type); Purp()se 125/250 Volts, 20 C73.49-1972**lG(~ne,ral** Am]flere,s, 

### 3

lint and is recommended that air shutters be of such

that can be to have not more primary air each prloglres:si'veJy**apI)rC~achi[lg** or of**('llf)Sln·l~.** or be ofsuch as can demonstrated effective against st()PJlag;e dust. 1.10 BURNERS 1.10.11 When air shutters are used, openings such as between air shutters and air mixer faces or around the orifice projections shaH be reduced 

### to a practical minimum so as to have 

### no appreciable effect on the flame characterietics when st()PIled by lint or other materials. (Former 1.5.14 and 1.5.15 become 1.5.17 and 1.5.18, respectively.)

1.6.1 A gas appliance pressure regulator shaH be provided on each appliance. An appliance provided with fixed shaH be provided with either an adjustable or a nonadjustable gas pressure regulator. An applianceprovided with double coaxial orifices shaHbeprovided with aconvertiblegasappliancepressurere,gulat:or 1.6 GAS APPLIANCE PRESSUREREGULATORS

The regulator outlet pressure pressure) shaH be nominally either 4, 5 or 6 inches water column, as specified by the manufacturer, for natural, manufactured and mixed gases or LP gas-air mixtures. Theregulatoroutletpressurefor liquefied petroleum gases shall approximate that**splec]!tu~d** by the manufacturer.TABLE V MAXIMUM ALLOWABLE RISE ABOVE ROOM TEMPERATURE FOR VARIOUS COMPONENT PARTS

Part (*2) Maximum Allowable Rise Above Room Temperature (*1) C F NOTES APPLICABLE TO TABLE V

(*1)

- The values shown are based on a room temperature of 25 C (77 F).
INSULATED WIRE, TYPE

RF. FF,RW, RU RH,RFH. FFH T, TF. TFF, TW AVB, CF, TA AF (*3), SFF SF GTF (CSA) APPLIANCE WIRING MATERIAL

Thermoplastic aoc Rating Thermoplastic 90C Rating Thermoplastic I05e Rating Thermoplastic 125C Rating 35 50 35 65 125 175 100

55 65 80 100 63 90 63 117 225 315 180

99 117 144 180 (*2) Parts other than those listed, may be used providing the application and temperature limitation are in accordance with the National Electrical Code, ANSI CI-1971. (*3)

- This wire is satisfactory if ternperatures are such as to require the use of this type of wire and other approved wire is not readily available. (*4)

- These flexible cords are suita.ble for a 50 C (90 F) temperature rise when specially approved and marked. (*5)

- Use if temperature requirements will not allowoneofthe above types offlexible cords. Do not use to gain higher current capacity. FLEXIBLE CORDS FOR USE AS SUPPLY CORDS OR INTERNAL WIRING

SJ, SJO, SJT S. SO, ST SRD, SHDT SP-2, SPT-2, SP-3, SPT-3 (*4) HPD HS, HSJ, HPN (*5) CFPD AVPO, AVPD AFPD, AFSJ (*6) ELECTRICAL INSULATING MATERIAL (*7)

Class A Class B Class C Class H Fiber Phenolic Composition Windings ofRelays, Solenoids, and

Other Coils (*8) (*9)

Class A Insulation

Thermocouple Method Resistance Method Class B Insulation

Thermocouple Method Resistance Method Coil Windings of d-c, Universal, and

Integral Horsepower a-c Motors (*8) (*9)

Thermocouple Method

Class A Insulation

open motors totally enclosed motors Class B Insulation

open motors totally enclosed motors Resistance Method

Class A Insulation

open motors totally enclosed motors Class B Insulation

open motors totally enclosed motors Coil Windings of Fractional Horsepower

a-c Motors (*8) (*9)

Thermocouple or Resistance Method

Class A Insulation

open motors totally enclosed motors Class B Insulation

open motors totally enclosed motors CLASS 2 TRANSFORMER ENCLOSURE POWER ANDIGNITIONTRANSFORMER ENCLOSURE CAPACITORS Electrolytic Types (*10) Other Types (*11)
SEALING COMPOUND

DIAPHRAGMS FILTERS 35 63 35 63 35 63 35 63 35 63 65 117 65 117 85 153 125 225

80 144 100 180

Unspecified As Determined by Test 65 117 125 225

65 117 85 153 85 153 95 171

65 117 70 126 85 153 90 162

75 135 80 144 95 171 100 180

75 135 80 144 95 171 100 180 60 108 65 117 40 72 65 117 Maximum Temperature 27 F (15 C) less than melting point 41 73 50 90 

### 3 (*6)

- Temperature rise of 125 C (225 F) applies only to impregnatedasbestos insulation if cord is employed within an appliance; cotton and rayon braids are limited to a. 65 C (117 F) temperature rise. (*7)

- The classes of material used for electrical insulation referred to include materials as follows: Class A - A Class A insulation system is onewhichby experience or accepted test can be shown to have suitable thermal endurance when operating at thelimiting ClassAtemperature specified in the temperature rise standard for the device under consideration. Typical materials used in Class A systems include cotton, paper, cellulose acetate films, enamel-coated wire and similar organic materials impregnated with sui-table substances. Class B A Class B insulation system is onewhichby experience or accepted test can bE shown to have suitable thermal endurance when opera.ting at the limitingClassB temperature specified in the t:emperature rise standardfor the device under consideration. Typicalmaterials usedina Class B system include mica, glass fiber, asbestos and other materials, not necessarily inorganic, with compatible bonding substances having suitable thermalstability. Class C - Inorganic materials such as pure mica, quartz, porcelain, etc. Class H - A Class H insulation system is onewhichby experience or accepted test can be shown tohave suitablethermal endurance when operating at the limiting Class H temperature specified in the temperature rise standard for the device under consideration. Typical materials used in Class H systems include mica, glass fiber, asbestos, silicone elastomer, and other materials, notnecessarilyinorganic, with compatible bonding substances, such as silicone resins, having suitable thermal stability.
(*8)

- At a point on the surface of an insulated coil where the temperature is affected by an external souree ofheat, the temperature rise measured by means of a thermocouple may be 9 F (5 C) (for fractionalhorsepower a-c motors) and 27 F (15 C) (for d· c, Universal, and integral-horsepower a-c motors) more than the indicated maximum, provided that the temperature rise of the coil, as measured by the resistance method, is not more**~han** thatspecifiedin the table. (*9)

- For a thermocouple-measured temperature onthecoilofa fractionalhorsepower a-c motor (other than a Universal motor) the thermocouple is to be applied to the conductingmaterial, or it is to be separated from thatmaterialbynotmorethanthe integrally applied insulation oftheconductoritself. Fora -thermocouple-measuredtemperature of a coil of any other motor, the thermocouple is to be mounted as described above, or it may be separated from the conductor by not more than the integrally applied insulation ofthe conductor itselfand the conventional coilwrapnormallyencountered. Ordinarily, temperatures are to be measured by means of thermocouples, except that motor-coil temperatures may be determined bytheresistance method ifthe coil is inaccessible for mounting thermocouples. (*10)

- For an electrolytic capacitor -which is physically integral with or attached to a motor, the ternperature rise on insulating material integral with the capacitor enclosure may not be more than 65 C (117 F). (*11)

- These limitations do not apply to capacitors which are recognized as being suitable for service at higher temperatures.within the unitin a polarizedfemalecordconnector body or receptacle, located and retained so as to be accessible from the front ofthe appliance after installation. Strain reliefshall beprovidedbetween the flexible cord and the wiring terminals ofeach ofthe devices to which itis connected. On a floor-mounted unit, the supply cord shall be of such length that when properly engaged with the primary disconnect specified in 1.23.7, it can be extended at least 4 feet beyond the back of the range. On a fuilt-in unit, the supply cord shall be protected or otherwise arranged so that during installation and servicing pinching between the unit and supporting cabinet can be readily avoided. The cord shall not extend more than 4 feet beyondthe back of the unit when properly engaged with the primary disconnect specified in 1.23.7. 1.23.5 A junction box provided for connection of an appliance to the electrical supply shall be located on a part of the assembly that does not require movement for normalservicingandadjustment. The box shall have provisions for strain relieving the field wiring entering the box. This box shall be located so that the temperature of the conductors within the box, or surfaces of the box likely to be in contact with conductors, will not exceed that specifiedfor TypeTwire when the appliance is tested in accordance with 1.23.23. During the conduct ofthistest,allunusedelectrical connection openings shall be closed. The size of a junction box in which field-installed conductors are to be connected by splicing shall not be less than that indicated in Table VI. A conductor passing throughthe box is counted as one conductor, and each conductor terminating in the box is also counted as one conductor. (Former Tables V through VIII become VII i lrough X, respectively.) 1.23.6 Appliance wiring terminating in a junction box shall have at least 4 inches free length available for making connections and strain relief sufficient to comply with the Method of Test of 1.23.9. 1.23.7 Means shall be provided for physically dnd electrically separating theinternalwiringfrom the supply cord without leaving uninsulated live parts exposed. The disconnecting device shall be readily accessible from the front ofthe appliance. Any other disconnect shall be coveredorlocatedso as to preventconfusionwiththeprimarydisconnect. All disconnects shall be polarized. There shall be sufficient free length of wire attached to the movable parts ofthe disconnect to permit ready connection and disconnection. The arrangement ofthe disconnect withrespect to internal wiring shall be suchastoprevent strain from being transmitted tointernalwiringterminals and connections during disconnection. When it is necessary to handle internal wiring to operate the disconnect, the wiring shall b(' either (1) a type offlexible cord shown in Table V or (2) conductors suitably jacketed, either individually or as a group, such as with woven fiber glass. If supplementary jacketing of a group of conductors is employed, it shall be securedin such a manner that it will not freely move and expose the conductors within. The length of the internal wiring to be handled or exposed shall not be in excess of 12 inches. For purposes ofevaluation of such a 12-inch section under 1.23.8, it may be considered as equivalent to one of the types of flexible cord. (Former 1.23.5 through 1.23.11 become 1.23.8 through 1.23.14, respectively.)

TABLE VI Steel used in the fabrication of a junctionbox shall not be less than 0.031 inch thick (0.035 inch thick if zinc coated). Nonferrous metal shall notbe less than 0.045 inch thickatpointswhereconduit or metal-clad cable is to be connected.

Conductor, AWG 18, 16 14 12 10



### 8 Free Space, Cubic Inches Per Conductor 1.5 2.0 2.25 2.5 3.0 4 1.23.15 The spacing between uninsulated livemetal parts ofopposite polarity, and between such parts and dead-metal parts shall not be less than 1/4 inch over surfaces or through air. An insulating lining or barrier of fiber or similar material not less than 1/32 inch thick may be employed in conjunction with an air spacing of not less than 1/16 inch, where spacings otherwise would be insufficient. Insulating material less than 1/32 inch thick may be employed if, upon investigation, it is found to be suitableforthe particular application. Uninsulated live-metal parts shall be secured so that they will be prevented from turning or shifting by means other than friction betweensurfaces, if such motion may result in a reduction of spacings below the minimum required. (Former 1.23.13 through 1.23.16become 1.23.16 through 1.23.19, respectively.) 1.23.20 Conductors shall have adequate current-carrying capacity as ,specified in Articles310 and 400 of the National Electrical Code, ANSI C1-1971. No conductor smaller than No. 18 AWG, or its equivalent, shall be used, except in coils, resistance units or the internal wiringofelectrical components. Switches shallhavecurrentandvoltage ratings not less than those ofthecircuitsthey control. (Former 1.23.18 becomes 1.23.21.) 1.23.22 The current input to an appliance shall not be more than 110 percent ofits marked rating, when measuredwiththeapplianceinoperationunder full load conditions at rated voltage. (Former 1.23.20 through 1.23.22become 1.23.23 through 1.23.25, respectively.)

1.24 INSTRUCTIONS 1.24.1 Each appliance shall be accompained by printed instructions and diagrams adequate for proper field installation, safe operation and maintenance including all controls and accessories. These instructions shall include:

a. For all appliances: 1. A statement that the installation must conform with local codes or, in the absence oflocal codes, withAmerican National Standard Installation of Gas Appliances and Gas Piping, Z21.30- 1964. 2. A statement that the installation of appliances designed for installation in a mobile home must conform with American NationalStandardforMobile Homes, A1l9.1-1972. 3. A statement that the appliancemustbe electrically grounded in accordance with theNationalElectricalCode,ANSI Cl-1971, when installed ifan external electrical source is utilized. 4. A statement ofthe maximum gas supply pressureinaccordwiththenominal inlet pressure ofthe classofpressure regulator supplied.
5 5. A statement o£ thegassupplypressure for checking the regulator setting, at least 1 inch water column above the manufacturer's specified manifold pressure. 6. A statement that the ventpipe mustbe mechanically £astenedtothefluecollar and instructionsforaccomplishingthis attachment. b. For floor-mounted units: 1. Information covering minimum clearances between theunitandcombustible construction adjacent to the sides and back ofthe unit and similar construetion extending vertically above the cooking top. 2. Directions that anyopeningsinthewall behind the unit and in the floor under the unit shall be sealed.

c. For built-in units: 1. Specification of the minimum spacing between individual built-in top sections. 2. A statementthat a manual valvebeinstalled in an accessible location inthe gas line externaltotheunitforthepurpose ofturning on orshuttingoffgasto the unit. 3. Directions that the recess in which an oven or broiler unit is installed shall be constructed so as toprovidea complete closure aroundtherecessedportion of the unit, except for the vent thimble for a vented unit, and that any openings around gas and electric service outlets shall be closed atthetime of installation, except when the construction of the unit provides the necessary closure. d. For units complyingwiththeoptionalprovisions of 2.22.2, the minimum vertical clearances between the cooking top and combustible horizontal surfaces (18 and 30 inches) and the minimum distance between cabinets centered above the appliance. 1.24.2 Operating instructions forallappliances with top burners shall include awarningtothe user to the effect that top burner flame size should be adjusted so that it does not extend beyond the edge of the cooking utensil. It shall state that thisinstruction is based on safety considerations. These instructions shall also warn ofthe potential hazards associatedwithstoragecabinetareasabove appliances. 1.24.3 Operating instructions forallappliances shall include a warning to the user to the effect that the appliance shall not be used for space heating. It shall state that this instruction is based on safety considerations. These instructions shall also warn of the potential hazards associated with using an oven for storage space. (Former 1.24.2 through 1.24.4 become 1.24.4 through 1.24.6, respectively.) 1.24.7 When a flexible service cord of the grounding type is provided to connect theappliance to a line voltage electrical supply, the instructions shall also include the intent ofthe warning statement specified in 1.25.8. (Former 1.24.6 becomes 1.24.8.)

1.25 MARKING 1.25.3 The following information shall be permanently recorded on the name plate(s):

a. Manufacturer's or dealer's name and address (city and state). b. Model number ofthe appliance.

c. A distinctive number which will identify an individual appliance. d. The manufacturer's normal hourly Btu input rating for all main burners and manifold pressure in inches water column.
e. Information on the need for venting, as follows: 1. "Vented unit. See installation instructions." 2. "May be vented. If vented, see installation instructions."

. f. If the unit utilizes any electrical equipment, the voltage, frequency and current input. g. The symbol of the organization making the tests for compliance with this standard. 1.25.4 The following information also shall be permanently recorded on the name plate(s): 6 a. Clearances from adjacent combustible construction as follows: 1. A floor-mounted unit shall be clearly marked with the minimum clearance between combustible construction and the back ofthe unit. 2. A floor-mounted unit shall be clearly marked with the minimum clearances from the sides ofthe unit to adjacent combustible vertical surfaces (a) below the level ofthe cooking top and(b) above the level ofthe cookingtop. 3. A built-in top unit shall have a marking stating: "Minimum horizontal distance(s)from

sides and back of unit to adjacent vertical combustible walls extending above the top panel,

__inchesfrom side walls,

__inches from rear wall." These distances shall be from the outermost edge ofthe top panel orany trim strip supplied with theunit. 4. A two-burner built-in top unit shall have a marking specifying the minimum acceptable spacing betweensim**iar** adjacent top units. 5. A unit complying withtheoptionalprovisions of 2.22.2 shall be clearly marked with the minimum vertical clearances between the cooking top and combustible horizontal surfaces and the minimum distance between cabinets centered above theappliance. b. Gases for which equipped: 1. Nonconvertible appliances shall be marked for only the type of gas for which equipped, as follows: Nat., Mfd., Mix., LP, 1400 Btu LP gas-air mixtures. 2. Convertible a ppiianc e s shall be marked for only the two typesofgases for which equipped, as follows: NatLP, Mfd-LP, Mix-LP. Convertible appliances shall also be marked to the effect that: This unit can be used with LP gas and

__gas. (Only the gas for which the unit is equippedshallbeindicated.) It is shipped from the factoryadjusted for useWIth

__gas: ORIFICEHOODSMUST BE SCREWEDTIGHTWHENLP GAS IS USED. The gas pressureregulator must be set for the gas with which the appliance is used. 1.24.5.) 3. Convertible appliances equipped with dual outlet burner valves requiring orifice spudsubstitutionshaHdisplaya marking outliningthecorrectselection of the orifices for the gas with which the unitis to he usedwheninstalled.

c. Marking appliances for mobile homes: 1. Aunit for installation only in amobile home shaH be marked: "For instaUation in a mobile home only." 2. Aunitforhouseholdinstallationas well as for installation in 

### a mobile home shall be marked: "Alsoforinstallation in a mobile home." d. Marking appliances for mobilehomesand recreational vehicles: A unit complying with American National Standard for Recreational Vehicle Cooking Gas Appliances, Z21.57, as wen as with the provisions ofthis standard may be marked "Also for installation in a recreational vehicle." This marking may be combined with that specified under 1.25.4-c2. 1.25.7 Wiring Diagrams. Except when electrical equipment is limited to a simple series cirelectrical diagrams ofall circuits within the**aplf}li;ln<~e** shaH be attached to the unit on Class IV marking material. Some means ofcolor, letter or number coding shall be used in the diagram so as to identify each circuit and the actual wiring of the appliance shaH be colored, or markedas shown in the diagram.

a. Electrical diagrams shaH conform to American National Standard Electrical and Electronics Diagrams, Y14.15-1966, and Y14.15a-1970. See Apfor reference to pro7 VISIons of ANSI Y14.15. The wire color designations specified under 

### 15-3.11 of ANSI Y14.15, are shownin 

### B. b. Itis recommended that the usage ofwire colors be as shown in AppendixC.



### c. Unidentified graphical symbols used for electrical diagrams shaH conform to American National Standard Graphic Symbols for Electrical and Electronics Diagrams, Y32.2-1970. See Appendix D for preferred symbols ofcommonly used items, as extracted from ANSI Y32.2. Abbreviations foridentifieditems shaHbe as shown in Appendix D.

d. The electrical diagram specified by 1.25.7

-a, shaH be a schematicdiagramof the ladder form(seePart Definitions). When necessary for clarification, a cycle chart 

### or printed sequence of switching action shaHaccompanytheschematicdiagram.

e. Itis recommended that a connection diagram (see Part 

### HI, Definitions) also be provided, in addition to the schematic diagram, to aidinlocatingcomponentsfor field service.

1.25.8 An appliance provided with a flexible service cord of the grounding type for connection to a line voltageelectrical supplyshaHbeara Class VI marking attached to the plug end of the cord which includes the following information, as applicable:
WARNING Electrical Grounding Instructions This appliance is equipped with a (threeprong) (four-prong) grounding plug for your protection against shock hazard and should be plugged directly into a properlygrounded receptacle. Do not cutorremovethegroundprong from this2.3 TEST PRESSURES AND BURNER ADJUSTMENTS 1,000 cubic foot room shall be calculated by the following formula*: 2.3.6 Electrical cooking sections used in combination with gas cooking appliances shaH beoperated, when specified herein, at the marked voltage ratings. where: TABLE IX INLET TEST PRESSURES Test Pressure

- volume ofcombustion products per 1,000 Btu (exclusive ofwater vapor) cu ft, and CO in air-free products ofcombustion, 

## % v concentration ofCO inroom atmosphere, 

## %,

e = Naperian logarithmic base (2.7183).

a. Top units shall have a 7-1/2-inch diameter (bottom) utensil containing 5 pounds of water at approximately room temperature placed over each top burner. A suitably designed hood shall then be placed on the cooking top. Ovenandbroilerburners and electrical cooking sections, if incorporated in the appliance, shall be placed in operation simultaneously with top burners and shall be operated during the time the samples offlue gases from the top burners are taken. After the top burners have been in operation for 5 minutes, samplesofthe flue gases with the unit operating underTestConditions 2 and 3 in Table X, shall be drawn from the hood vent and analyzed for carbon monoxide and carbon dioxide. 

### 7.0 6.0 6.0 11.0 11.0



### 6.0 

### 3.5 3.0 3.0 8.0 8.0 3.0 A B C D E G Test Gas

2.5 COMBUSTION 

### 2.5.1 A household cooking shall produce no carbon monoxide. This provision shaH be deemed met when a concentration not in excess of 0.01 percent is produced in a room of 1,000 cubic feet content with 4 air changesoccurringduringthe combustion of an amount of gas 60,000 Btu. During combustion tests of a built-in unit all cracks or other openings, other than the designed air openings, shaH be sealed. At the conclusion of the combustion tests, the sealing means shaH be removed. b. An additional test under Test Condition 3 in Table 

### X shall be conducted on top burners. During this test, other burners shall not be in operation. On units for use with natural, manufactured and mixed gases, or natural and mixed gases, this test need be conducted with test Gas A Method ofTest Burners s.hall be adjusted as specified 2.3.5. Thermostats shall 

### be set at their maximum open position after have been adjusted as**spl~cifi€~d** by 2.12. Two adjacent top burners shall be covered with cast-iron griddle 

### 9-1/2 inches in diameter having the bottom recessed 3/16 inchwithap'pn::>xiLa l/8-inch-wide lip. (See 6.) When a burner having an rating of Btu hour or more is it shall be one of
for carbon monoxide shallbeonanairfree basis. Carbon monoxide concentration in a * This formula may be simplified ro read; Cr ::: 0.0147 CaV.


### 8TABLE X GAS PRESSURE AND INPUT RATE CONDITIONS FOR USE IN THE VARIOUS PERFORMANCE TESTS

Test Inlet Test Manifold Condition Pressure *1 Pressure *2 Input Rate *3 Test Gases *4 1 Normal Normal 100% All 2 Reduced Resultant Resultant All 3a Increased as Increased 25% *5 Approx. 112% A,B,C,G necessary 3b Increased as Increased 9% *5 Approx. 104.5% D,E necessary 4 Normal 4.0" W.c. 100% *6 A 5 Normal 3.0" W.c. 100% *6 B

*1 See Table IX. *2 See 2.3.2. *3 See 2.4. *4 See Table VIII. *5 See 2.3.3. *6 Reorifice main burners to obtain full rate at the indicated manifold pressure.

covered by the griddle plates. A 7-1/2 inches diameter (bottom) water-filled utensil shall be placed on each of the griddle plates and over each ofthe remaining top burners. A combustion hood, provided with adjustable legs, shall be placed on the cooking top so thatit covers the utensils placed over all of the top burners. When there are 6topburnersor2pairs of burners on a divided top unit, more than one combustion hood may beused. Withtheedgeofthe combustion hood(s) located at least 5 inches above the cooking surface, the flames shall be observed. The hood(s) shall then be lowered in small increments, preferably 1/2 inch, while a constant observation of the flames is maintained. As soon as any noticeable change in the character of the flames occurs, the hood shall be raised 1/2 inch. With the hood at this height, a sample ofthe flue gases shall be secured from the outlet of the hood and analyzed for carbon dioxide. The outlet area of the hood may be gradually reduced to obtain as high a carbon dioxide percentage as possible without altering the flame characteristics. After the top burners have been inoperationfor 5 minutes, a sample ofthe flue gases shall be secured from the hood vent and analyzed for carbon
9 monoxide and carbon dioxide, and when more than one hood is used, an averaging sample from the hood vents shall be secured and analyzed.

Additional tests shall beconductedwhendeemed necessary with the plates covering other combinations ofany two adjacent burners.

c. When the construction ofthe grates is such that they can be positioned so astocause the burner flames to impinge on the grate bars, the top burner tests shall be conducted with the grates in that position. d. An open top broiler unit shall be tested with the grid uncovered, and with the effective grid area covered with a sheet-metal panel. During each test a suitably designed test hood ofsufficient size to collect the products ofcombustion shall be placed on the cooking top. After the burner(s) has been in operation for 5 minutes, samples of the flue gases and with unit operating under Test Conditions 2 and 3 in Table X shall be drawn from the hood vent and analyzed for carbon monoxide and carbon dioxide.e. An additional test shall be conducted on an open top broiler unit when operating under Test dition 1 in Table X. On a unit for use with natural, manufactured and mixed gases, or natural and mixed gases, this test need be conducted with test Gas A only. The open top broiler unit shall be covered with a flat sheet-metal panel of a size that will cover the top to the outer edges ofthe top of the unit. A suitably designed test hood of sufficient size to collect theproductsofcombustion shall be placed on the cooking top. Afterthe burner has been in operation for 15 minutes, a sample of the flue gases shall be drawn from the hood vent and analyzed for carbon monoxide and carbon dioxide.

f. An oven or enclosed broiler unit shall be operated for 5 minutes after which samples ofthe flue gases with the unit operating under Test Conditions 2 and 3 in Table X shall be taken from the flue outlet and analyzed for carbon monoxide,and carbon dioxide.

In the case of a unit having the top burner at a lower elevation than theovenandbroilerburners, such top burners shall be placed in operation simultaneously with the oven and broilerburnersand shall be operated during the time the oven and broiler samples are taken.

When the flue gases from two oven or broiler burners, assembled within the same unit, are vented through separate flues, they shall be tested separately.

g. A unit having a flue collar outlet, and which incorporates a built-in or permanently attached draft diverting device, shallcomplywith2.24. h. A floor-mounted unit having a flue collar outlet, and which does not incorporate a built-in or permanently attached draft diverting device, shall produce no carbon monoxide when the flue collar opening is completely blocked. Compliance with this provision shall be determined with all sections of the unit in operation for 15 minutes under Test Condition 1 in Table X with the flue collar outlet blocked. On a unit for use with natural, manufactured and mixed gases or natural and mixed gases, this test need only be conducted with test Gas A. A sample shall be secured from each section to vent through the flue 10 collar and analyzed for carbon monoxide and carbon dioxide.

2.6 BURNER AND PILOT OPERATING CHARACTERISTICS 2.6.8 On an appliance assembled with mldtiple sections, the burner flames ofany sectionshaHnot be extinguished nor exhibit signs of smothering as the result of simultaneous operation of the other sections. Method ofTest This test shall be conducted under Test Condition 3 inTableX. Eachthermostatshallbe set at its full open position. With all parts oftheappliance at room temperature, thegas supplytotheovenburner shall be turned on, ignited, and the door closed. Immediately thereafter, gas to other ovens, separate broilers, or auxiliary burners shall be turned on, ignited, and the doors closed. Electrical cooking sections shall also be placed in operation. Simultaneous operation shall be continued for 15 minutes, observing the burner flames at intervals by cracking open the door to the section being observed. Burner flames shall not be extinguished nor show signs of smothering. (Former 2.6.16, dellet:ed.)

2.7 AUTOMATIC IGNITION The following tests shaH be conducted under Test Conditions 1,2,and3inTableX, unless otherwise specified. An appliance for use with natural gas shaH also comply with these provisions under the Test Conditions specified in 2.5.2. An appliance for use with manufactured gas shaH also comply with these provisions undertheTestConditions in 2.5.3. On for use with natural gas, the additional tests with test Gas G shall be conducted Test Condition 1 test GasA in Table 

### X. Each shall be tested asinstalledinits test enclosure in2.22.111 afloormounted unit for zero clearance shaHalsobetested with the unit clear ofall walls.One hundred white cotton cloth test material with a weave on both nominal 8 ounces per square shaH be used. 2.8 PILOT BURNERS AND SAFETY SHUTOFF DEVICES 2.8.2 The time for (a) the to open, and the burner to shall be within the time limits**spl~cined\** For electric devices these shall be determined at the apJPli:!m<:e Test shaH be percent , or less, at 75 F least 24 hours before conduct of any test. at 30 at

Method ofTest Tests shall be conducted under Test Conditions 1, 2, and 3 in Table X. A unit for use with natural gas shall also have this test conducted under the Test Conditions specified in 2.5.2. An appliance for use with manufactured gas shall also have this test conducted under Test Conditions specified in 2.5.3. All tests shall be conductedatnormaltestpressure on a test gasforwhichthemaximum for the burner being tested, has been specified.
2.19.1 Backing or Leaning on Appliance.
This test shall be conducted on appliances with or burners. The time for each ignitioncycleshallnotexceed those specified in 2.7.2 and shall not result in objectionable noise or concussion. Guards with the shall beinstalled in accordance with the manufacturer's installation instructions. 2.12 THERMOSTATS 2.12.3 The change in oven shall notbe more than 

### 25 F astheresult ofsimultaneous of the oven and any other section ofthe ap»li,mc:e for 1 hour. Method of" Test All top and griddle burners shall be ignited and operated at maximum input for at least10minutes. No utensils shall be inplace during conduct ofthis test. Method ofTest

The frame shall be placed inaverticalposition, the 4-inch width parallel to the front, andwell outside the forwardprojection, oftheappliance, andthe folded edge at the bottom 

### at the same height as the utensil support surface, with the center line ofthe test fixture on the projected center line of each front burner. The frame shall then be moved. towards the heat source, to a distance 4 inches from the maximum forward projection ofthe apmaximumforwardprojectionexcludes valve handles and knobs but includes guards, oven door handles, manifold covers and shields, so as they span the projected width of the support surface and are no more than 6 inches above or below the horizontal plane ofthe utensil surface.) For built-in units the distance shall be measuredfromthefrontedgeofthe counter A sample of the test material, 16 inches long and 4 inches wide, shall be foldedtocover a threesided U -shaped frame, 8 inches long and 4 inches wide. The folded edge shall be at the 4-inch-wide open end ofthe frame.

No of shaH occur under any ofthe tests in this section. 2.19 EVALUATION OF CLOTHING IGNITION POTENTIAL After the oven temperature, with the thermostat dial set at 400 F, has been established as specified 2.12.2, the top burners and all other burners located adjacent to or vented adjacent to the oven shall be placed in operation under Test Condition 1 in Table X. A utensil 7-1/2 inches in diameter (bottom) and partially filled with water shall be placed over each top burner. A separate broiler shall be maintained at600F. Thistemperature shall be determined as outlined by 2.16. Electrical cooking sections shall also be placed in The potentiometer reading at the end of 1 hour shall indicate an oven temperaturenotmore than 25 F above or below that established under 2.12.2 with the thermostat dial set at 400F.

11or guard, when installed in accordance with the manufacturer's installation instructions. The frame shall be held in this position for 30 seconds. No flaming of the test material shall occur. 2.19.2 Reaching for Controls or Performing Cooking Operations. This test shaH be conducted on appliances with burners.
Method of Test An uncovered pan of the appropriate size as shown in Table XI shall be 3/4 filled with water and centered on each top burner utensil support. Each such pan shall have a flat bottom, a radius of not more than 1/2 inch at the juncture ofthe bottom and sides, a straight side taper and no external lip. All top burners shall be ignited and operated at maximum input for at least 10 minutes.
The 4-inch-wide free ends of a sample ofthe test material, 22inches longand4incheswide, shall be fastened to a 4-inch-Iong and 3-inch-wide horizontal support so that a loop, at least 9-1/2 inches long, is formed. The loop shall be positioned so thatits bottom curve coincides with the horizontal plane of the utensil support surface and one side is justtouching the top edge of the pan over the burner being tested (see Figures 7 and 8). The loop shall be allowed to remain in this position for 30 seconds. No flaming ofthe test material shalloccur. This test shall be conducted on eachtopburner. Additional tests, as outlined above, may be conducted with other burner-test materialorientations. If the specified test pans are spaced 3- inches apart, or less, tests shall not be conducted with the loop between adjacent pans. Arrangement ofTest Apparatus Simulating Reaching for Controls or Perf{u"'!1r11rIP Cooking Operations

TABLE XI

Pot Dimensions Inches Outside Diametertop 7 9 Projected Outside Diameter

-bottom 

### 6-1/2 8- Height 

### 3-1/2 4

(li',,,

..

### ,cn,,,.. Tables IX and Xbecome XII and

2.19.3 for Side-Mounted Knobs or Method ofTest Handles.

This test shallbeconductedonap)lli,mc:esha'virliJ! top or burners. 

### 12 All top and griddle burners shall be ignited and operated at maximum input for at least10minutes. No utensils shall be in during conduct of this test.

### Figure 8 Arrangement ofTest Apparatus Simulating Both Reaching for 

### Controls or Performing Cooking Operations and Oven Usage (Former Figures 7 through 13 become 9 through 15, respectively.)

13A U-shaped frame as in2.19.1 shallbe covered with the test material and placed in a vertical position over the centerline of the sidemounted knob or handle, parallel to the nearest heat source, withthefoldededgeofthetest material at the same 

### as the utensil support surface. The frame shall then be moved toward the heat source to a distance 4 inches from the centerline ofthe knob or handle. The frame shall be held in this position for 30 seconds. No flamingofthetestmaterial shalloccur. Additional tests, as outlined above, may be conducted between otherside-mountedknobsorhandles and heat sources. 2.19.4 Oven Usage. The test outlined in "a" shaH be conducted on aplpli:tln<:es with ovens. The test outlined in "b" shaH be conducted on appliances with ovens where the oven bottom is 36 inches or less above the floor when installed in accordance with the manufacturer'sinstallationinstructions.

Method ofTest

a. Reaching into Oven. One oven rack shall be installed in the lowest rack position. The oven shall be ignited, the thermostat set to 400 F and allowed to operate, with the oven door open, for at least 10 minutes. A 6-inch by 6-inch simulatedpot holder, consisting of six layers of the test material shall be folded diagonally in half so.there are no exposed cut edges and used to grasp the oven rack at the front center, within the fold. The oven rack shall be pulled to the full outposition and then returned to its normal position. No flaming ofthe test material shall occur.

This test shall with the simulated pot holder folded in half so as to form a re,c;tangle. b. Standing beside Open Oven Door. The oven racks shallberemoved. Theovenshall Ignlte'd, the thermostat set to 400 F and allowed to operate, with the oven door open, for at least 10 minutes. One edge of a 6-inch by 6-inch simulated pot holder, as described in 2.19.4-a, shall be attached to the uppermost edge ofthe side ofthe open oven door closest to the oven cavity (see Figure 8). The free of the materia] shall be moved in any direction from the point of attachment and allowed 

### to dwell at any location for 30 seconds. No flaming ofthe test material shall occur. 2.19 and 2.20 become 2.20 and

2.22 FLOOR AND ENCLOSURE TEMPERATURES 2.22.1 The maximum anyexwall or counter surface adjacent to a unit, concealed waH or enclosure surface

### incontact or to a and (3) the burner box surface of a built-in or open broiler unit that extends into the cabinet space, shall not be more than 117 F in excess ofa :room**teJmI:~er'a** ture of70 F. The on the floor beneath a floor-mounted unit shall not be more than 90 F 

### in excess ofa room of70 F. Method ofTest

a. Test Structures. The appliance shall be installed in a suitably instrumented test structure applicable tothe type ofunit, as listed below: 1. Afloor-mounted unit not incorporatingan elevated oven or broiler shallbeinstalled in a partial test enclosure with its back and sides parallel to the walls of the enclosure, as shown inFigure 11, andwith the spacing specified in Figure 11. A floor-mounted unit of either the room heater or bungalow type shall beinstalled in the test enclosure with sidewallclearances in integral inches, as**SPI~C1J1€;d** the andbackwallclearance of 2 inches from a flue box, but not less than 6 inches from the body ofthe unit. The back wall clearance for a bungalow type unit utilizing fuels other than shall be as specified by theb. Instrumentation. Vertical walls of the enclosure shall be constructed of either nominal l-inchthick wooden boards or 3/4-inch plywood and finished in flat black. The back wall shall be 6 feet high. The lower side walls shall be 24 inches deep and vertically adjustable so that they may be aligned even with the cooking top. They shall be equipped with extensions toincreasetheir height to 6 feet. The floor shall be constructed ofI-inch tongue-and-groove oak flooring finished with clear varnish. 2. A floor-mounted unit incorporating an elevated oven ror broiler shall be installed in an enclosure as shown in Figure 12. The back wall and the floor shall be as described in 

### "1," above. The simulated cabinets shall beconstructedof either nominal 1

- inch thick wooden boards or 3/4-inch plywood with dimensions as indicated in Figure 12. All surfaces facing theappliance shallbefinished in flat black. The unit shall be installed flush with adjacent rear wall and cabinet surfaces. Spacings to adjacent side walls (dimensions "A" and 

### "B" in Figure 12) shall be as specified bythemanufacturer. 3. A built-in top section, open top broiler, or combination thereof, shall be installed in an enclosure as described by 2.1.9 and shown in Figure 4. 4. A built-in oven, enclosed broiler unit or combination oven and enclosed broiler unit shall be installed in an enclosure as described in 2.1.10 and showninFigure

### 5. When an oven, broiler, or combination oven and broiler, is provided with a flue collar, a 4-foot-high listed Type B Gas Vent of the type specified by the manufacturer (see 1.25.9) shall be attached to the flue collar. At the points where the vent pierces the panel directly above the top ofthe unit and the top panelofthe enclosure, an opening shall becutwhichwill nr,rHTlln" an annulus around the vent in accordance with its listing. The annuli thus formed shall be sealed on their surfaces with asbestos paper(seeFigure 13). A unit differing from the described in "I" "4" above shall be installed in the most nearly applicable test 

### 15 c.modified as deemed necessary by thetesting agency

Structure surface temperatures shall be determined by means of an indicating potentiometer and No. 24 AWG copper-constantan thermocouples, the junctions of which are copper discs 11/32 inch in diameter and 0.022 inch thick, to which the thermocouple wires are silver-soldered 1/8 inch apart. The discs shall be embedded so that their surfaces are flush with the surrounding surfaces. The surfaces ofthe copper discs, except those in the floor, shall be finished in flat black. Thermocouples shall beplacedatintervalsof 3 inches over the entire surfaces of wall panels, the interior surfaces of enclosures, and on the surfaces directly above the front ofan elevated oven section, a built in oven or broiler, or a combination oven and broiler unit. Thermocouplesembeddedin the floor shall be 

### 6 inches apart. For a floor-mounted unit, two additional vertical rows shall be installed on the front of the lower side panel surfaces so that temperatures may be measured at I-inch intervals along the front ofthe side. The center line of the top row ofthermocouples on the lower side panel shall be 1/4 inch below the cooking top. An enclosure for a built-in unit shall have additional thermocouples embedded in counter or wall surfaces, atintervals of 2 inches on center lines 1/2 inch from the edge ofthe recess accommodating the appliance, and in otherenclosedsurfaces deemed necessary by the testingagency. For a vented built-in oven, broiler, or combination oven and broiler installed as described in 2.22.1-a and Figure 5, additional thermocouples, as previously described, shall be located on the bottom of both combustible surfaces, centered inch away from the annuli around the vent. Figure 13.)

rr".rnn"r"1hlY'" Detennination. of operating sections of the appliance shall be determined as indicated below: The oven ternpl?r<ltUlre shallbedetermined as under 2.14.

# --- --- --- 

# --- Cabinet 

### "D" Cabinet 

## "c" "c"
Area

"B"


# ---

--..

# 13"~ 30" Minimum 

# r- "A"- Both 

### 18" sides 

# [ pi 

# leo**~,** 

# :'**~~** 

# , 

# -**-~«R~ ~>.~** 

.

# --

....... :::. 

# - r0- C' 

### --D 

# / ;It



# --

c=:::==

__:D


# J_

-
Dimensions A and D specified by manufacturer

NOTE: Built-in Top Section installed in the same position as shown for Floor-Mounted Unit.

Figure 15 Test Structure for Optional Wall and Floor Temperature Tests

162. The broiler temperature shall be determined as specified under 2.16. respectively, above a room temperature of 70 F as determined by the following formula:

2.26,**re~;pe;l:threlv** Ort observed rOOnl temperature,

{Ji"'

..nrl

.... 2.22 through 2.25 become 2.23 thlrollPh 

### = (Ort ± CF) + Trp

maximum pe rmissible wall, enclosure or burner box surface temperature, Tmp

Trp temperature rise permissible. (117F for surfaces and 90 F for floor temperatures.) CF correction factor for variation in actual observed room temperature from 70 F room (plus 1 F for every 5 F observed roomtemperatureabove 70 F, or minus 1 F for every 5 F observed room temperature below 70 F), and where:

All electrical equipment provided, such as lamps, rotisserie motor, clock, etc., shallbe operated throughout the test periods prescribed. The rotor ofa rotisserie motor of the impedance protected type shallbelocked. A compartmentorsectionwhichuses electrical energy forcookingshallbeoperatedinthe manner, and for the time period specified in ANSI C33.53-1969 (UL 858). 3. The griddle temperature shall be determined by means ofanindicatingpotentiometer and a single No. 24 AWG ironconstantan bead-type thermocouple with the bead peened into the top surfaceofthe griddle at its center. 4. On a built-in top or open top broiler unit, the temperatures on burner box surfaces that extend into the cabinet space shallbe determined by means of a surface temperature thermocouple of the type described in 2.20.
d. Electrical Equipment.

e. Test Period. 2.27 MARKING MATERIAL ADHESION The appliance shall be placed in operation under Test Condition 1 in Table X, and continued in operation under the specified conditions oftime, burner input,burnerloading, and compartment temperature as listed in in Table XIII, and under any further special conditions specified in the Notes appendedto Table XIII. (Also see 2.22.1-dJ When different operating times are specified for different sections, the sections shall be turned on in a sequence that allows the various tests to be run concurrently and ended simultaneously. Cabinet doors shall be closed etunrlg At the end ofthe specified test nori"r'" ating conditions listed in Table all**<1jJ~HCctllJlt** surface shall be determined and recorded. The ambient room shall be determined by thermometers located as shown in Figure and recorded. At the end of the test no surface or floor shall exceed 117 F or 90 The of adhesion of Class IlAIIlA-! and IIIA-2 materials shall notbe affected when such**rn.~** ..ic;n,ff materials are "to heat and moisture as**spl~cifie!d** in the Method ofTest. Method of Test These tests shall be conducted withthemarking materials applied to the particular type offinish used on the appliance in production. A sample metal panel of this finish shall be cleaned with a solvent and dried. Halfofthe panel shall be wiped with a clean cloth lightly oiled with SAE-30, medium machine oil. Two of material by the manufacturer shall be to the one on the area and one on the oiled area. Test samples shall be applied with firmpressureunless the manufacturer's application instructions specify otherwise, and allowed to set for 24 hours at room


### 17

### Each sample ofmarking material shall exhibit:

a. good adhesion and no curling at edges, b. no illegible or defacedprintingbyrubbing with thumb or finger pressure, and

c. good adhesion when scrapedacross edges of the test sample plate with a metal blade (dulled knife blade orbackofpocket knife blade) held at rightanglestothetest panel. Samples shall then be placed in an oven for a period of two weeks with the oven temperature maintained at:

a. 350 

### F for Class IIA-3, IIA-4 

### and IIIA-l 

### marking materials, or

18 

### b. 250 F for Class IIIA-2 markingmaterial. Following the oven test, adhesionofthe samples to the testpanels shallbecheckedagainas specified above. Samples shall then be immersed in 

### water for a period of 24 hours, after which adhesion shall be rechecked.
Good adhesion qualities shall be obtained under all ofthe above test conditions.

Final acceptance of marking materials shall be based on the suitability of the application of the marking material to the appliance.

### A Y14. (This Appendix is informative and is not part of the standard. )

The following sections of ANSI Y14.15-1966 are most pertinent to diagrams for gas appliances. 15-2.2 Schematic 15-2.3 Connection Diagrams 15-2.4 Interconnection 15-3.6.1 ofcontacts 15-3.7 Abbreviations 15-3.11 Wire Colors 15-9.2.5 Circuit 15-10.3.1 Views

- Conn. Diagrams 15-10.3.2 Wiring Views 15-10.3.3 Device



### 19

### APPENDIX B WIRE COLOR DESIGNATIONS (This Appendix is informative and is notpart ofthe standard.)

DESIGNATION SPECIFIED IN 15-3.11 OF WIRE COLOR ANSI Y14.15
Black BK Brown BR Red R Orange 0 Yellow Y Green G Blue BL Violet V

(Purple) (PR) Gray GY

(Slate) (8) White W Other None



### 20(This Appendix is informative and is notpart ofthe standard.)

Line Voltage Conductors

120v 240v

208v Black Black Black White Red Red

Line Voltage COlmlPOIlellt Leads Capacitors Brown
The**eqluilllml~nt** gr,ol.lllding conductor shaHbe'w,,"""'" Green or bare. *120v, 208v

- Black & White



### 21

### APPENDIX D PREFERRED GRAPHIC SYMBOLS, OF COMMONLY USED ITEMS, EXTRACTED FROM ANSI Y32.2-1970, GRAPHIC SYMBOLS FOR ELECTRICAL AND ELECTRONIC DIAGRAMS, AND ABBREVIATIONS FOR THESE ITEMS. (This Appendix is informative and is not part ofthe standard.)

Y32.2 ITEM DESCRIPTION ABBREVIATION SYMBOL SECTION REFERENCE Capacitor (* Closest to Grnd) CAP 

# --!1J- 2.2.1 Coil, Relay R 

# -®- 4.5 Contact, Normally Closed N.C. 

# --+1- 4.3.1 Contact, Normally Open N.O. 

# -1 l- 4.3.2 Contact, Transfer Single Pole 

# V Double Throw S.P.D.T. 4.3.3 Crossing ofPaths 

# + (Conductors not Connected)



### ------ 3.1.5 Fuse, General FUSE 

# ---1 9.1.1 Ground (Direct Circuit 

# -L Return to Earth) GND 3.9.1 Ignitor IGN 

### \. 7.1.2.3 Junction ofPaths 

# ! (Conductor or Cable)



### ------ 3.1.6.2 Link, Fusible FL 

# 0\Jb 2.12.3 Motor, General MOT 

# --e- 13.1.3 Resistor, Adjustable RES 

# -vr 2.1.3 Resistor, Heating RES 

### -'VV'v-- 2.1.8 Resistor, Variable RES 

# ---fv- 2.1.4 Switch, Double Throw 

# -(- General S.P.D.T. 4.6.2

22

### PREFERRED GRAPHIC SYMBOLS FROM ANSI Y32.2

- 1970

Y32.2 ITEM DESCRIPTION ABBREVIATION SYMBOL SECTION REFERENCE Switch, Normally Closed 

# T Time Delay Opening N.C. SW 4.16.2 Switch, Normally Open Time Delay Closing N.D. SW 4.16.1 Switch, Pressure or Vacuum Actuated (Closes on rising N.D. SW

# ~o 4.19.1 Pressure) Switch, Single Throw 

# ---./

# - General N.D. SW 4.6.1 Switch, Temperature Actuated 

# y (Closes on rising Temperature) N.D. SW 4.20.1 Switch, Temperature Actuated 

# T (Opens on Rising Temperature) N.C. SW 4.20.2
Transformer, Magnetic Core 

### \.....A.....A-. Nonsaturating TRAN. 6.4.2.1

(Former Appendix becomes Appendix E.)

23