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<br /> 2015 WASHINGTON STAT� ENERGY CODES ,
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<br /> C403.1 General. Mechanical systems and equipment serving heating, with Class I motorized dqmpers. Return air openings ��sed for C403.2.9.1 Protection of piping insulation. Piping insulation exposed 5
<br /> cooling, ventilating, and other needs shall comply with Section airside economizer operation shall be equipped with Cfass I to weather shall be protected from damage, includinq that due to 4
<br /> C403.2 and shall comply with Sections C403.3 and C403.4 based motorized dampers. Class I dampers shall have a maximum suniight, moisture, equipment maintenance and wind, and shall
<br /> on the equipment and systems provided. leakage rqte of 4 cfm�ft2 (20.3 L/s x m2) at 1.0 inch water provide shielding from solar radiation that can cause degradation 3
<br /> gauge (w.g,) (249 Pa) when tested in accordUnce with AMCA 500D of the material. Adhesives tape shall not be permitted. 2
<br /> C403.2 Provisions applicable to all mechanical systems and shall be labeled by an approved agency for such purRose. , �
<br /> (Mandatory). Mechanical systems and equipmer�t serving the Exception: Motorized dampers on return air openings in unitary C403.2.10 Mechanical systems commissioning and completion RF�.� ADD'cNDU(vl DATE
<br /> building heating, cooling or ventilating needs shall comply with packaged equipment that have the minimum leakage rate available requirements. Mechanical systems shall be commissioned and
<br /> Sections C403.2.1 through C403.2.13. from the manufacturer shall be deemed to comply. Outdoar air completed in accordance with Section C408.
<br /> intuke and exhaust dampers shall be 9
<br /> C403.2.1 Calculation of heating and cooling loads. Design loads installed with automatic controls configured to close when the C403.2.11.4 Group R occupancy exhaust fan efficacy. The Group R
<br /> associated with heating, ventilating and air conditioning of the systems or spaces served are not in use or during unoccupied occupancies ofi the builcling shall be provided with ventilation that ,�
<br /> building shall be determined in accordance with the procedures period warm-up and setback operation, unless the systems served meets the requirements of the Internationai Mechanical Code, as
<br /> described in ANSI/ASHRAE/ACCA Standard 183 or by an �pproved require outdoor or exhaust air in accordance with the International applicable, or with other approved means of ventilation. Mechpnicaf
<br /> equivalent computational procedure, using the design parameters Mechanical Code or the dampers are opened to provide intentianal ventilation system fans with 400 cfm or less in capacity shall
<br /> specified in Chapter 3. Heating and cooling loads shall be adjusted economizer cooling. meet the efficacy requirements of Table C403.2.11.4.
<br /> to account for lodd reductions that are achieved where energy
<br /> recovery systems qre utilized in the HVAC system in accordance C403.2.6 Ventilatian. Ventifation, either natural or mechanical, shall C403.2.13.1 Heat rejection equipment. The requirem�nts of this
<br /> with the ASHRAE HVAC Systems and Equipment Handbook by Un be provided in accordance with Chapter 4 of the International section apply to heat rejection equipment used in comfort cooling 4
<br /> approved equivalent computqtional procedure. Mechanical Code. Where mechanical ventilation is provided, the systems such as air-cooled condensers, open cooling towers, �`'
<br /> �,
<br /> system shall be configured to provide no greater than 150 percent closed-circuit cooling towers, and evaporative condensers. �
<br /> C403.2.2 Equipment and system sizing. The output capQcity of of the minimum outdoor qir required by Chapter 4 of the Exception: Heat rejection devices included us an integral part of � ��
<br /> heating and cooling equipment shall be no greater than that of International Mechanical Code or ather applicable code or standard, equipment (isted in Tables C403.2.3(1) through C403.2.3(3). Heat �� ,�� :,
<br /> the smallest available equipment size that exceeds the loads whichever is greater. rejection equipment shall have a minimum efficiency performance �� . - �'
<br /> �� .F���
<br /> calculated in accordance with Section C403.2.1. A sing(e piece of not less than vqlues specified in Table C403.2.3(8). These �
<br /> equipment providing both heating and cooling shall satisfy this C4Q3.2.6.2 Demand conirolled ventilation. requirements apply to al) propeller, axial fan and centrifugal fan ��- �� �� ��
<br /> �
<br /> provision for one function with the capacity for the other function Demand control venfilation (DCV) shall be provided for spaces cooling towers. Table C403.2.3(8) specifies requirements for '�'� `�^ �'-
<br /> as small as possible, within cavailable equipment options. larger than 500 square feet (50 m2) and with an occupant CoQd air-cooled condensers that are within rating conclitions specified �� �k-_ ,�, �� �
<br /> greater than ar equal to 25 people per 1000 square feet (93 m2) within the table. �. - -
<br /> C4Q3.2.3 HVAC equipment performance requirements. Equipment �� ��.�
<br /> shall meet the minimum efficiency reyuirements of Tables of floor area (as established in Table 403.3.1.1 of the Interna�ianal
<br /> Mechanicaf Code} and served by systems with one or more of the C403.3 Economizers (Prescriptive). Air economizers shall be
<br /> C403.2.3(1), C403.2.3(2), C403.2.3(3), C403.2.3(4), C403.2.3(5), following: provided on a11 new systems including those serving computer
<br /> C403.2.3(6), C403.2.3(7), C403.2.3(8) and C403.2.3(9) when 1. An air-side economizer. server rooms, electronic equipment, radio equipment, and
<br /> tested and rated in accordance with the applicable test procedure. 2. Automatic modulating control of the outdoor air damper. telephone switchgear. Economizers shall comply with Sections
<br /> Plate-type liquid-to-liquid heat exchangers shall meet the 3. A design outdoor airflow greater than 3,Q00 cfm (1416 L/s). C403.3.1 through C403.3.4.
<br /> minimum requirements of Table C403.2.3(10). Tf�e efficiency shall
<br /> be verified through certification and listed under an approved C403.2.8.1 Ducts, shafts pnd plenums conveying outside air from C403.3.3.1 Design cppacity. Air economizer systems shqll be .
<br /> certification program or, if no certification program exists, the configured to modulate outdoor air and return air dampers to
<br /> the exterior of the buifding to the mechanical system shall meet
<br /> equipment efficiency ratings shall be supported by data furnished c�ll air leakage and building envelope insulation requirements of provide up to 100 percent of the design supply air quantity as
<br /> by the manufacturer. Where muitiple rating conditions or outdoor air for cooling.
<br /> Section C402, plus building envelope vapor control requirements
<br /> performance requirements are provided, the equipment shall satisfy from the International Building Code, extending continuously from
<br /> all stated requirements. Where components, such as indoor or , C403.3.3.2 Control signal. Economizer eontrols and dampers shall
<br /> the building exterior ta an automatic shutofr damper or heating or
<br /> outdoor coils, from different manufacturers are used, calculations coo(ing equipment. For the purposes of building envelope insulation �� configured to seyuence the dampers with mechanical cooling
<br /> and supporting data shall be furnished by the designer that e ui ment and shall not be controlled b onl mixed air
<br /> requirements, cluct surfaces shall meet the requirements Tor metal q p y y
<br /> demonstrates tha't the combined efficiency of the specified temperature. Air economizers on systems with cooling capacity
<br /> components meets framed walls per Table C402.1.4. puct surfaces included as part of reater than 65,Q00 Btu h shall be confi ured to rovide a
<br /> the re uirements herein. the building envelope shall not be used in the calculation af g � 9 P P r��Q�
<br /> q maximum glazing area as described in Section C402.4.1. cooling even when additional mechanical cooling is requirecl to
<br /> meet the remainder of the coolin load.
<br /> C4Q3.2.4.1 Thermostatic controls. The supply of heating and Exceptions: 9
<br /> coolin ener to each zone shall be controlled b individual 1. Outside air ducts serving individual supply air units with less
<br /> g 9Y y than 2,800 cfm of total supply air capacity, .provided these are C403.�,3.3-High-limit shutoff. Air economizers shall be= configured -
<br /> thermostatic controls capable of responding to temperature within ir�sulated to R-7. to automatically reduce outdoor air intGke to the design minimum .
<br /> the zone. Controls in the same zone or in neighboring zones 2. Unheated equipment rooms with combustion air (ouvers, outdoor air quantity when outdoor air infake will na longer reduce
<br /> connected by openings larger than 1Q percent of the floor area of provided they are isolated from conditioned space at sides, top cooling energy usage. High-limit shutoff controf types for specific
<br /> either zone shall not ailow for simultaneous heating Gnd cooling, and bottom of the room with R-11 nominal insufation. climates shall be chosen from Table
<br /> At a minimum, each floor of a building shall be considered as a C403.3.3.3. High-limit shutaff control settings for these control
<br /> separate zone. Controls on systems required ta have economizers C403.2.8.2 All other supply and return air ducts and plenums shall types shal! be those specified in Table C4Q3.3.3.3.
<br /> and serving single zones shall have multiple cooling stage be insulated with a minimum of R-6 insulation where located in
<br /> capability ar�d activate the economizer when appropriate as the unconditioned spaces and where located outside the building with e�03.3.3.4 Relief of excess outdoor air. Systems shal! be eapable
<br /> first stage of cooling. See Section C403.3.1 for further economizer p minimum of R-8 insulation in Glimate Zone 4 and R-12 of relieving excess outdoor air during air economizer operation to
<br /> requirements. Where humidifieation or dehumidifiication or both is insulation in Climate Zane 5. Where located within a building prevent ov�r-pressurizing the building. The relief air outlet shalt be '
<br /> provided, at least one humidity control device shall be provided for envelope assembly, the duct or plenum shall be separated from located to avoid recirculation into the building,
<br /> each humidity control system. the building exterior or unconditioned or exempt spaces by `
<br /> minimum insulation value as required for exterior wqlls by Section C403.3.3,5 Economizer dampers. Return, exhaust/relief and ,
<br /> C4Q3.2.4.1.2 Deadband. Where �ised to control both heating and C402.1.3. Exceptions: outdoor air darnpers used in economizers shall compty with Section �
<br /> cooling, zone thermostatic controls shall be configured to provide �. Where located within equipment. C403.2.4.3.
<br /> a temperature range or deadband of at least 5`F 2. Where the design temperature clifference between the interior
<br /> (2.8°C) within which the supply of heating pnd cooling energy to �
<br /> and exterior of the duct or pfenum does not exceed 15°F (8°C).
<br /> the zone is shut or'f or reduced to a minimum. Where located within conditioned space, supply ducts which convey
<br /> supply air at temperatures (ess fhan 55°F or greater thqn 105°F
<br /> C403.2.4.1.3 Setpoint overlap restriction. Where a zone has a shall be insulated with a minimum of R-3.3 insulation.
<br /> separpte heating and a separpte cooling thermostatic control Exception: Ductwork exposed to view within a zone that serves
<br /> located within the zone, a limit switch, mechanical stop or direct that zone is not required to be insulated. All ducts, air handlers,
<br /> digital control system with software programming shall be and filter boxes shall be sealed. Joints and seams shall comply
<br /> configured to prevent the heating set point from exceeding the with Section 603.9 of the International Mechanical Code.
<br /> cooling setpoint and to maintain a deadband in accordance with ����
<br /> Section C403.2.4.1.2 C4Q3.2.8.3.1 Low-pressure duct systems. All longitudinal and d�� � � ���r
<br /> transverse jaints, seams and connections of supply and return �
<br /> C403.2.4.2 Off-hour controls. For all occupancies other than ducts operating at a static pressure less than or equal to 2 CITY OF EVERETT �
<br /> Group R, each zone shall be provided with thermostatic setback inches water gauge (w.g.) (500 Pa) shal( be securely fastened pnd �'erm►t 5ervices
<br /> controls that are controfled by either an automatic time clock or �
<br /> programmable contro) system. sealed with wefds, gaskets, mastics (adhesives), mastic-plus
<br /> embedded-fabric systems or tapes installed in qccordance with � �
<br /> C403.2.4.2.1 Thermostatic setback capabilities. the manufacturer's installation instructions. Pressure classifiications �
<br /> Thermostatic setback controls shall be configured to set back or speciric to the duct system shall be clecarly indicated on the Permit#: M1710-067 �
<br /> Site Address: 3125 COLBY AVE STE A&B � �
<br /> temporarily operate the system t0 maintain zone temperatures construction documents In accordance Wl�h th2 Internqtional Owner: FIRST BAPTISTCHURCH OF EVT �
<br /> down to 55°F (13°C) or up to 85°F (29°C).
<br /> M2Chq111CpI COCl2. Tenant: COLBY PACIFIC FAMILY DENTISTRY �
<br /> App. Date: 10f25/2017 /"�
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<br /> C403.2.9 Piping insulation. All piping serving as part of a heating Prapased Use: COMMERCIAL �
<br /> C�}�3.�,4.2.2 Automatic setback and ShU�C�OWt1 Cq(JCJbIIIt12S. Descriptian: SPLITSYSTEM&AJC-COLBY PACIFIC
<br /> Automatic time cfock or programmabte controls shall be capable or cooling system sha�l be thermafly insulated in accorc�ance Wlth FAMILY DENTISTRY �
<br /> of starting and stopping the system for seven different daily Table C403.2.9.
<br /> Exceptions: �� `� ,� �
<br /> schedules er week and retainin their ro rammin and time ''� � 2 ��t�: �
<br /> P 9 P 9 g Reviewed By:
<br /> setting during a loss of power for at least 10 haurs. Additionally, 1. Factory-installed piping within HVAC equipment tested and rated e
<br /> �<Office Ser lofa Site Set Fire/Planning Ser
<br /> the controls shall have a manual override that allows temporary �n ttccordance with a test procedure referenced by this code. �
<br /> operation of the system for up to 2 hours; a manucally operated 2• �actory-installed piping �Nithin room fan-coils and unit
<br /> timer configured to operate the system for up to 2 hours; or an ventilators tested and rated according to AHRI 440 (except that
<br /> occupancy sensor. the sampling and variation provisions of Section 6.5 shall not
<br /> apply) and 840, respectively. �---�� DATE: 9-11-17
<br /> C403.2.4.2.3 Automatic start capabilities. 3. Piping that conveys fluids that have a design operating � APPROVED: JH
<br /> Automatic start controls shall be provided for each HVAC system. temperature range between 60°F (15°C) and 105°F (41°C).
<br /> The controls shall be capable of automatically adjusting the ciaily 4. Piping that conveys fluids that have nat been heated or cooled DRAWN BY: LHW
<br /> start time of the HVAC system in order to bring each space ta through the use of fossil fuels or electric power. �� ,/� � s ��� , �/ JOB #:
<br /> the desired occupied temperaiure immediately prior to sched��led 5. Strainers, control valves, and balancing valves associated with ��s V V SCALE: NTS
<br /> occupancy. piping 1 inch (25 mm) or less in diameter. SHEET:
<br /> 6. Direct buried piping that conveys fluids at or below 60°F (15°G). �
<br /> C403.2.4.3 Shutoff dampers. Outdoor air supply, exhaust openings
<br /> � and relief outtets and stairway and shaft vents shall be provided '�---'"
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