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S <br />S <br />S <br />S <br />S <br />S <br />S <br />UTILITY SYMBOLS <br />OUTLET <br />110 V DUPLEX OUTLETA.F.C.I <br />SWITCHES <br />2- WAY SWITCH <br />3- WAY SWITCH <br />4- WAY SWITCH <br />DIMMER SWITCH <br />3- WAY DIMMER <br />4- WAY DIMMER <br />LIGHTING/EXHAUST FANS <br />WALL MOUNT LIGHT: LED LIGHT FIXTURE <br />CEILING MOUNT HANGING LIGHT: LED LIGHT <br />(PROVIDE SOLID BLOCKING) <br />CEILING RECESSED LED LIGHT FIXTURE <br />BATH ROOM EXHAUST FAN - 50 CFM MIN.: <br />VENT TO OUTSIDE AIR. <br />3 <br />4 <br />D <br />3D <br />4D <br />H <br />S/C <br />COMBINATION SMOKE/CARBON MONOXIDE <br />ALARM, CEILING MOUNTED, HARD WIRED <br />AND W/ BATTERY BACK UP.ICC APPROVED <br />S SMOKE DETECTOR, HARD WIRED <br />AND W/ BATTERY BACK UP.ICC APPROVED <br />(INSTALL AS PER 2022 CBC) INTERCONNECTED <br />KITCHEN EXHAUST FAN - 280 CFM MIN.: <br />VENT TO OUTSIDE AIR. <br />VACANCY SENSOR <br />V.S. <br />S MOTION SENSOR AND <br />PHOTO-SENSOR <br />COMBINATIONS <br />M.S. <br />110 V G.F.C.I. DUPLEX OUTLETG.F.C.I <br />G.F.C.I <br />/W.P. <br />110 V WEATHERPROOF G.F.C.I. OUTLET <br />220 V OUTLET <br />WALL MOUNT MULTI-LIGHT: LED LIGHT FIXTURE <br />CAST IRONSINKSBROOKFIELDK-5942-5 <br />IS <br />L <br />A <br />N <br />D <br />(N) KITCHEN <br />9'-0" CLG <br />STACK <br />W/D <br />CLOSET CLOSET <br />CAST IRONSINKSBROOKFIELDK-5942-5 <br />CAST IRONSINKSBROOKFIELDK-5942-5 <br />(N) LIVING <br />9'-0'' CLG <br />W.I.C. <br />(N) BED #1 <br />9'-0" CLG <br />(N) BED #2 <br />9'-0" CLG <br />(N) BED #3 <br />9'-0" CLG <br />(N) HEAT PUMP <br />CONDENSER- ADU <br />WH <br />HP <br />LA <br />N <br />D <br />I <br />N <br />G <br />(N) BA #1 <br />9'-0" CLG <br />(N) BA #2 <br />9'-0" CLG <br />(N <br />) <br /> <br />P <br />O <br />R <br />C <br />H <br />21 <br /> <br />S <br />. <br />F <br />. <br />A.F.C.I <br />A.F.C.I <br />A.F.C.I <br />A.F.C.I <br />A.F.C.I <br />A.F.C.I <br />WP/G.F.C.I. <br />240V MIN.; <br />30 AMP MIN. <br />WP/G.F.C.I. <br />WP <br />/ <br />G <br />. <br />F <br />. <br />C <br />. <br />I <br />. <br />WP/G.F.C.I. <br />WP/G.F.C.I. <br />S/CS <br />S S <br />G. <br />F <br />. <br />C <br />. <br />I <br />. <br />G. <br />F <br />. <br />C <br />. <br />I <br />. <br />240V MIN.; <br />30 AMP MIN. <br />(FOR ELECTRIC <br />DRYER READY) <br />WP/G.F.C.I. <br />240V MIN.; <br />30 AMP MIN. <br />OUTLET FOR <br /> DISPOSAL <br />240V MIN.; 50 AMP MIN. <br />(FOR ELECTRIC STOVE READY) <br />IAQ FAN <br />65 CFM MIN. <br />1 SONE MAX. <br />A. <br />F <br />. <br />C <br />. <br />I <br />. <br />/ <br />G. <br />F <br />. <br />C <br />. <br />I <br />. <br />A. <br />F <br />. <br />C <br />. <br />I <br />. <br />/ <br />G. <br />F <br />. <br />C <br />. <br />I <br />. <br />A. <br />F <br />. <br />C <br />. <br />I <br />. <br />/ <br />G. <br />F <br />. <br />C <br />. <br />I <br />. <br />A. <br />F <br />. <br />C <br />. <br />I <br />. <br />/ <br />G. <br />F <br />. <br />C <br />. <br />I <br />. <br />A. <br />F <br />. <br />C <br />. <br />I <br />. <br />/ <br />G. <br />F <br />. <br />C <br />. <br />I <br />. <br />A.F.C.I./ <br />G.F.C.I. <br />A.F.C.I./ <br />G.F.C.I. <br />A.F.C.I./ <br />G.F.C.I. <br />A.F.C.I./ <br />G.F.C.I. <br />A.F.C.I./ <br />G.F.C.I. <br />S SWITCH FOR <br />GAR. DISPOSAL <br />OUTLET FOR <br />HOOD <br />A.F.C.I A.F.C.I <br />A.F.C.I <br />A.F.C.I A.F.C.I <br />A.F.C.I A.F.C.I <br />A.F.C.I A.F.C.I <br />A.F.C.I <br />A.F.C.I <br />A.F.C.I <br />A. <br />F <br />. <br />C <br />. <br />I <br />A.F.C.I <br />A.F.C.I <br />G.F.C.I. <br />G.F.C.I. <br />S <br />M.S.S <br />3D <br />DS <br />D <br />S <br />DS <br />S <br />3D <br />S <br />3D <br />SSS3D <br />V.S. <br />S <br />V.S. <br />SSS <br />D <br />V.S. <br />SSS <br />D <br />A.F.C.I <br />A.F.C.I./ <br />G.F.C.I. <br />A.F.C.I./ <br />G.F.C.I. <br />OUTLET FOR <br />D.W. <br />S <br />PROVIDE LIGHT SWITCH AND <br />RECEPTACLE IN ATTIC ACCESS <br />G.F.C.I.OUTLET FOR THE <br />HEATING FURNACE <br />IN ATTIC <br />ELECTRICAL NOTE: <br />1.In new construction, the required smoke alarms shall receive their primary power from the <br />building wiring and shall be equipped with a battery backup. Smoke alarms may be solely <br />battery operated when installed in existing sleeping rooms and hallways [§907.2.11.4 CBC] <br />(R314.6 CRC). <br />2.Where more than one smoke alarm is required to be installed, the smoke alarm shall be <br />interconnected in such a manner that the activation of one alarm will activate all of the <br />alarms. (R314.4 CRC) <br />3.Tankless water heaters shall be nationally listed and be installed in accordance with the <br />installation instructions that were approved as part of their listing.The gas piping serving this <br />appliance must be sized in compliance with the water heater's listed installation instructions <br />and the 2022 California Plumbing Code. <br />4.Provide clothes dryer moisture exhaust duct (min. 4 inch dia., smooth, metal duct) to the <br />outside and equip with a back draft damper. Exhaust duct length is limited to 14 ft. with 2 <br />elbows. <br />5.Provide arc-fault circuit interrupter protection for all outlets for all dwelling unit. [§210.12 <br />CEC] <br />6.A minimum of 2-20 amp small appliance branch circuits shall be provided for all receptacle <br />outlets in the kitchen, dining room, pantry, or other similar areas [§210.11(C)(1) CEC] <br />7.A switched light shall be installed at all exterior doors. [§210.70 CEC] <br />8.At least one 20 amp branch circuit shall be provided to supply bathroom and laundry <br />receptacle outlets. Such circuits shall have no other outlets. [§210.11(C)(3); §210.11(C)(2) <br />CEC] <br />ELECTRICAL NOTE: <br />1.Water Heating. Systems using gas or propane water heaters to serve individual dwelling units shall include the <br />following components [150.0(N)]: <br />a.A dedicated 125V, 20A (10 AWG copper branch circuit) electrical receptacle that is within 3 feet from the <br />water heater and accessible to the water heater with no obstructions. There shall be a reserved single pole <br />breaker space in the electrical panel labeled "Future 240V Use". Both ends of the unused conductor shall be <br />labeled with the word “spare” and be electrically isolated. <br />b.A condensate drain that is no more than 2 inches higher than the base of the installed water heater, and <br />allows natural draining without pump assistance. <br />c.Designate a space at least 2.5 ft. by 2.5 ft. wide and 7 ft. tall suitable for the future installation of a heat pump <br />water heater (HPWH). <br />d.If designated space is more than 3 feet from water heater, comply with 150.0(n)B. <br />2.In addition to the local exhaust fans in the bathrooms and kitchens, an exhaust fan shall be sized to provide <br />ventilation for the whole house. The minimum ventilation rate for the whole-building exhaust fan shall be <br />calculated according to ASHRAE Standard 62.2 Equation 4.1(a). The conditioned floor area and the number of <br />bedrooms in the home (the existing house and the addition) will determine the minimum ventilation rate. One of <br />the local exhaust fans in the bathrooms or kitchens may be used to meet the whole-building ventilation, provided <br />the exhaust fan meets the minimum ventilation rated for both the Local Exhaust and Whole-Building Ventilation <br />requirements. The ducting for the whole building exhaust fan shall be sized according to ASHRAE Standard <br />62.2 Table 7.1 and this exhaust fan shall operate continuously. Identify fan manufacturer, model and sone rating <br />(1 sone for continuous, may be 3 sone for intermittent) on plans. <br />3.The whole-building ventilation exhaust fan will operate continuously and is required to be rated for sound at a <br />maximum of 1 sone. This exhaust fan can be controlled by a standard on/off switch but the switch must be <br />labeled to inform the occupant that the exhaust fan is the whole-building ventilation exhaust fan and is intended <br />to operate continuously. No specific wording is mandated, but the wording needs to make clear what the control <br />is for and the importance of operating the system. This may be as simple as “Ventilation Control” or might <br />include wording such as: “Operate when the house is in use” or “Keep on except when gone over 7 days” or <br />“Fan is to be left on to ensure indoor air quality.” <br />4.Access to attic furnace must be within 20 feet of unit and shall have a continuous solid walkway at least 24 <br />inches wide. A switch controlled light is also required. [CMC 304.4.1]. <br />5.Countertops in the kitchen, dining area and similar areas require a receptacle be provided for each counter <br />space wider than 12 inches so that no point is more than 24" from an outlet. [CEC 210.52(C)] Additional outlet <br />required between cooktop and sink to meet spacing requirements. <br />6.Outlets to be tamper resistant per CEC 406.12. <br />7.All 125-volt through 250-volt receptacles shall be GFI protected at required locations. <br />8.Bathroom outlet(s) shall be on a dedicated 20 amp circuit. <br />9.A kitchen is defined as any room containing cooking appliances. Each kitchen is required to have an exhaust fan <br />ducted to the outside with a minimum ventilation rate and capture efficiency per Table 150.0-G or Table 160.2-G <br />(multi-family). The range hood over the stove may be used to meet this requirement but the range hood must <br />vent to the outside; recirculating range hoods cannot be used. The ducting for the exhaust fan shall be sized <br />according to ASHRAE Standard 62.2 Table 7.1. This local exhaust fan may operate continuously or <br />intermittently. Installing this local exhaust fan in the kitchen will allow the home occupant to regulate the indoor <br />air quality when needed. <br />10.Provide the following Electric-Ready requirements: [150.0] <br />A.Heat Pump Space Heater Ready. Systems using gas or propane furnace to serve individual dwelling units <br />shall include the following: <br />1.A dedicated 240 volt branch circuit wiring shall be installed within 3 ft. from the furnace and accessible to the <br />furnace with no obstructions. The branch circuit conductors shall be rated at 30 amps minimum. The blank <br />cover shall be identified as “240V ready”. <br />2. The main electrical service panel shall have a reserved space to allow for the installation of a double pole <br />circuit breaker for a future heat pump space heater installation. The reserved space shall be permanently <br />marked as “For Future 240V use.” <br />B.Electric Cooktop Ready. Systems using gas or propane cooktop to serve individual dwelling units shall <br />include the following: <br />1. A dedicated 240 volt branch circuit wiring shall be installed within 3 ft. from the cooktop and accessible to <br />the cooktop with no obstructions. The branch circuit conductors shall be rated at 50 amps minimum. The <br />blank cover shall be identified as “240V ready”. <br />2. The main electrical service panel shall have a reserved space to allow for the installation of a double pole <br />circuit breaker for a future electric cooktop installation. The reserved space shall be permanently marked <br />as “For Future 240V use.” <br />C.Electric Clothes Dryer Ready. Clothes dryer locations with gas or propane plumbing to serve individual <br />dwelling units shall include the following: <br />1. A dedicated 240 volt branch circuit wiring shall be installed within 3 ft. from the clothes dryer location and <br />accessible to the clothes dryer location with no obstructions. The branch circuit conductors shall be rated <br />at 30 amps minimum. The blank cover shall be identified as “240V ready.” <br />2. The main electrical service panel shall have a reserved space to allow for the installation of a double pole <br />circuit breaker for a future electric clothes dryer installation. The reserved space shall be permanently <br />marked as “For Future 240V use.” <br />9.All single-family residences that include one or two dwelling units shall meet the following: [150.0(s)] <br />A.At least one of the following shall be provided: <br />1. ESS ready interconnection equipment with a minimum backed-up capacity of 60 amps and a minimum of <br />four ESS-supplied branch circuits; or <br />2. A dedicated raceway from the main service to a panelboard (subpanel) that supplies the branch circuits <br />in Sec. 150.0(s)(2). All branch circuits are permitted to be supplied by the main service panel prior to the <br />installation of an ESS. The trade size of the raceway shall be not less than 1 inch. The panelboard that <br />supplies the branch circuits (subpanel) must be labeled “Subpanel shall include all backed-up load circuits.” <br />B.A minimum of four branch circuits shall be identified and have their source of supply collocated at a single <br />panelboard suitable to be supplied by the ESS. At least one circuit shall supply the refrigerator, one lighting <br />circuit shall be located near the primary egress and at least one circuit shall supply a sleeping room receptacle <br />outlet. <br />C.The main panelboard shall have a minimum busbar rating of 225 amps. <br />D.Sufficient space shall be reserved to allow future installation of a system isolation equipment/ transfer <br />switch within 3 ft. of the main panelboard. Raceways shall be installed between the panelboard and the <br />system isolation equipment/transfer switch location to allow the connection of backup power source. <br /> 10. Smoke alarms shall receive their primary power from the building wiring and shall be equipped with a battery <br />backup. [CRC Section R314] <br /> 11. Carbon monoxide alarms shall receive their primary power from the building wiring and shall be equipped with a <br />battery backup. [CRC Section R315] <br /> 12. All services supplying dwelling units shall be provided with a surge-protection device (SPD) as an integral part <br />of the service equipment, or immediately adjacent thereto. Specifically includes service equipment <br />replacements and upgrades. CEC 230.67 <br /> 13. Bathroom exhaust fans shall be ENERGY STAR compliant, ducted to terminate outside the building, and <br />controlled by a humidistat capable of being adjusted between the relative humidity range of 50 to 80 percent. <br />[CGBC 4.506] <br />E1 <br />UTILITY PLANS <br />SCALE: <br />UTILITY PLAN - ADU <br />NE <br />W <br /> <br />D <br />E <br />T <br />A <br />C <br />H <br />E <br />D <br /> <br />A <br />D <br />U <br />11 <br />2 <br />8 <br /> <br />E <br />L <br />A <br />I <br />N <br />E <br /> <br />D <br />R <br /> <br />( <br />A <br />D <br />U <br />) <br />, <br />SA <br />N <br />T <br />A <br /> <br />A <br />N <br />A <br />, <br /> <br />C <br />A <br /> <br />9 <br />2 <br />7 <br />0 <br />3 <br />Job # <br />Sheet No.: <br />Scale <br />Date <br />Pr <br />o <br />j <br />e <br />c <br />t <br /> <br />f <br />o <br />r <br />: <br />SEAL: <br />SHEET DESCRIPTION : <br />10/14/25 <br />24212 <br />OW <br />N <br />E <br />R <br />: <br />EN <br />G <br />I <br />N <br />E <br />E <br />R <br />: <br />DI <br />E <br />M <br /> <br />L <br />E <br /> <br />& <br /> <br />T <br />A <br />O <br /> <br />P <br />H <br />A <br />M <br />11 <br />2 <br />6 <br /> <br />E <br />L <br />A <br />I <br />N <br />E <br /> <br />D <br />R <br />, <br />SA <br />N <br />T <br />A <br /> <br />A <br />N <br />A <br />, <br /> <br />C <br />A <br /> <br />9 <br />2 <br />7 <br />0 <br />3 <br />71 <br />4 <br />- <br />6 <br />0 <br />0 <br />- <br />7 <br />7 <br />8 <br />1 <br />2 <br />2 <br />NOTE: <br />FOR AN FAU LOCATED IN THE ATTIC, PROVIDE A MINIMUM <br />ACCESS OF 22 X 30 INCHES, A 24-INCH WIDE WALKWAY, A <br />30-INCH DEEP WORK PLATFORM, AND ELECTRIC LIGHT <br />OUTLET ADJACENT TO THE FURNACE AND SWITCHED BY <br />THE OPENING. (CMC 904.11 & 305) <br />2