1515 75TH ST SW HYTEK FINISHES INC 2018-01-02 MF Import

mecnamcal - General Requirements 1412 Controls 1412.1 Temperature Controls: Each system sham be provided with at least one temperature control device. Each zone shah be controlled by individual thermostatic ostatic controls responding to lerrperehae within the tone. At a mnvnam, each Thor of a building shall be considered as a separate zone 1412.2 Deadband Controls: When used to control both comfort heating ■nd cooling. zone thermostatic controls shah be spade of a desdband of at least 5 degrees F vAhn which the supply of heating and cooing enegy to the zone is shut oil or reduced to a mineral Exceptions: 1 Special occupancy, special usage, or code requirements where deadband controls ore not appropriate 2 Buildings conpfyng with Section 1141 4, if in the proposed building energy an&"!$, beating and cooing thermostat set ions are set to the sane tamparaturs between 70 degrees F and 75 degrees F inclusue. and assumed to be constant tivoughout the year. J Thermostats that require manual changeover between basing and cooing modes 1412.0 Humid ty Controls: IF a system is equipped with a means for adding moisture, a humdislat shall be promd•d 1412.4 Setback and Shut -Off; HVAC systems shah be equipped with automatic conhols capable of accorfplohing a reduction of energy use through control setback or equipment shutdown during periods of non ma Of atsinale use of the spaces served by the system. The automatic controls sham haw a mnimum sewn -day clock and be capable of being set for seven different day Lyles per week. Exceptions: 1 Svstems serving areas which require continuous operaton at tie same temperature sstpan. 2 Equip"M wail full bad demands of 2 kW (6,826 BIWh) or less m-y be controlled by readily accessible manual off. lour controls 1112 4.1 Dampers: Outside sir intakes. exhaust outlets and r,hot outlets serving conditioned spaces shall be equipped with dangers which close autormticahy when the system n off W upon Power failure. Slaw shah and elevator shah snake relief openings shah be pepped with norms) open dampen These dampers shall terrain closed in normal operation until .ictivated by the fire alarm system or other approved %=its daiectron s'stem Exceptions: t System, serving areas which require continuous operation 2 Combustion av intakes 1412.E Heat Pump Controls: Unitary air cooled boa: pumps shall Include csnoplooessor conhols that minimize supplemental heat usage during startup. set-up, and dellost conditions These controls shall aMk:ifels need for heat and use cc rprossion healing as the first stage of heat Conhoh shall Indicate when supplemental heating is being used through visual meant (e g., LED ndkators) 1412.6 Combustion Heating Equipment Controls- Corrbushon heating equipment will a capacity over 225,000 91Wh shall haw modulating or staged combustion control. Exceptions 1 Bollan 2. Radford Hectors. 1412.7 Balancing: Each ale supply outlet or air or water terminal device shall have a means for balancing. includng but not kmted to. dampen, temperature arid pressure test connections and balancng alias. 1410 Air Ecorpmlzens 1410 1 Operation: Air econorri shall be of automaticalymodute ng otAsme and rebirn au dampers to provde 100 percent of the design supply air as o,eside air to reduce or eliminate the need for mechanical cooling. 1410.2 Control; Ni economizers shall be controlled by a control syet" capable of determining If outcido air can most par or all of the buldmg's cooing loads. 14123 Integrated Operation: Building Heating Energy: Air scoronszen shah be capable of Providing partial cooling own when additional mechanical cooing Is requited to "at the remainder of the cooling load Controls shall not Medulla the economizer operation Wen mechanicalcaohrghrequiredsimulane mly. Exception: Economizers on indMdual, direct expansion, cooling systems wth capacities not greater than 75,000 Bhyh may include controls that Inat sirru6aneous operation of the 4conomizer and neMsnical cooling for the purpose of preventing lee (emotion on cooing cats 1414 Duclmg Systems 1414.1 Sealing: Duct work which is designed to operate at pressures above 112 inch water cokinst static pressure shah be sealed in ocoordanca wah Standard RS-18 Extent of seals g required is ss lolows. 1 Staticpresame. 112 Inch to 2 etches, seal transverse pints 2 Static pressure- 2 inches to 0 inches. seal all transverse pints and longdudnal seam, 0 Static pressure above 0 inches. seal an benawrse bats. longitudinal seams and duct wall penetrations. 1414.2 Insulation: Ducts and p1muna that are constructed as pan of the buildny envelope shalt meet the requ onrents of Chapter 10. Other ducts and plenums shall be thermally insulated par Table 14.5. Exceptions: I Within the HVAC equipment. 2 Exhaust as ducts not sub,oct to cordonsatbn. 0 Exposed ductmrk within a space that servos that space only 1415 Piping Systems 1415.1 Insulation: Piping shall be thermally msulated in acmnlance wdh Table tab Exception: Piping ni tailed within unitary HVAC equipment Water pipes outside the cond8roned space shall be insulated in accordance with Washington Stale Plumbng Code (WAC 51-26) 1420 SIMPLE SYSTEMS (PACKAGED UNITARY EQUIPMENT) 1421 System Type To qualify as a simple system, systorm shah be one of the lohovnrg a Air cooled, constant volume packaged equipment. which provide healing, cooling or bath, and requaa only external connection to duct work and energy services. b Aa cooled, constant volume sold systems, which provide hearing, cooling or both. wsth cooling capacity of 54,000 Stub or lea. e Heating only systems which haw a capacity of less than 5.000 cfm or whch haw a minimum outside air supply of less than 70 percent of the total ail circulation AN other system shall comply win Sections 1400 through 1408 1422 Controls. in addition to the control fequoemonta in Section 1412. where separate heating and cooing equipment serve the some temperature zone, thermostats shah be interlocked to prevent simultaneous hestng and cooing 1420 Economizers: Econnmesrs mooting the lequiromerds of Section 1417 shah be nstaled on packaged root top lan-conhrg rots having a supply capacity of greater than 1,900 dim or a total cooling tenacity gresbr than 54,000 BIWIs The total capacity of an units without economters sham not exceed 240,000 Bluth per bolding 1424 Separate Air Distribution Systems: Zones with special process terrpentum requirements and/or humidity requirements shall be served by separate air dftribution systems from those serving zones requlrkg orgy corn/at conditions.