Section 15010, Mechanical Provisions (1) Related Documents

Faucet: LK-412 with chrome plated wrist blade handles and centers to match basin.

Strainer Drain: SST grid.

10. SK-2 Sink, Countertop, Art Room: Elkay, Model LR-3122. 18-gauge stainless steel, self-rim, 3-inch vertical radius coved corners, three faucet holes on 4-inch centers, 28” x 14 ¾” x 7” deep. Faucet: Chicago 786-FC deck-mounted, GN2A 5-3/5” rigid swing gooseneck spout plain outlet, 317 wristblade handles, 8” centers, 11-1/8” overall height. Drain; Elkay LK-18 brass drain outlet fitting for 3-1/2” sink opening, 3” perforated grid strainer, 1-1/2” brass tailpiece. Plaster Trap: Z-1180, solids interceptor, fabricated steel, low inlet, high outlet, removable sediment basket with primary and secondary flow diffusing/intercepting screens, gasketed non-skid cover secured with recessed and covered center securing handle (gas and watertight). Provide in lieu of fixture “P” trap.

11. MC-1, MC-2, Mopcepter: SBC-1725-BP 36X24X12 and HL-2110 36” x 24” x 12”, both with combination dome strainer and stainless steel cap, (2) stainless steel backsplash panels, and lint basket. Drain body cast brass cadmium plated, 3 inch diameter. Service faucet T-10-VB chrome plated, vacuum breaker, integral stops, wall brace for spout pail hook, and ¾” hose thread on spout. Hose and hose bracket T-35, 36” long flexible hose, rubber reinforced with cloth. Bracket stainless steel with rubber grip. Mop Hanger T-40, 24’ x 3”, 18 gauge #302 SST, with three rubber tool grips. Caulk backsplash panels to rim of mopceptor.

12. DF-1, Drinking Fountain: (ADA) Elkay barrier-free all stainless steel frost proof, Model No. EDFP-10-FP-C or EDFP-14-FP-C where barrier free is required, with self-closing front push button, perforated dome strainer, tail piece, automatic pressure regulator stream control valve, bubbler, bottom cover plate and mounting hanger, or approved equal.

13. EWC-1 Barrier Free electric water cooler, 8.0 gph chilled water, single basin, trim bezel, flexible bubbler guard, stainless steel cabinets, 115V, 380 W, Oasis P8AM.

14. EWC-2, Drinking Fountain: (ADA) Oasis two-level, barrier-free electric refrigerated no-lead water cooler, Model No. PR8AMSL 8GPH capacity, one-piece stainless steel basin, front pushbutton, refrigerant 134A, mounting hangers, strainer and tail piece, bubbler, five-year warranty, stainless steel cabinets with apron for upper unit. Fountain shall meet ADA height requirements for both handicapped and able-bodies access, and have bottom cover plate.

15. WF-1 Wash Fountain: Junior Height Acorn Solid Surface Barrier-Free 3-station Corterra-Lav. Bowl shall be reinforced skid surface polished and finished with an integral backsplash and spray head. Spray nozzles shall be vandal-resistant type with 0.5 GPM flow controls. Corterra-Lav shall be supplied with mounting angles and bracket for anchoring to the wall as recommended by the manufacturer. Provide with hands-free battery operated sensor activation. Provide chrome plated loose key brass hose bib with vacuum breaker at wash fountain base for restroom washdown. Conterra-Lav shall be custom color as selected by Architect, submit full color palette. Provide with a thermostatic mixing valve with check stops and strainers in H&C supplies.

16. DF-2, Drinking Fountain and Cuspidor: Oasis recessed all stainless steel Model No. FLF231PM with perforated domed strainer, tail piece, self-closing front push button, bubbler, and mounting hanger.

17. REF-1: Refrigerator ice-maker hook up, Guy Gray BIM875, or approved.

(6) Hose Bibs:

A. HB-1, Exterior Wall Hydrant: 12 inch Non-freeze, Box Type: (every 100 ft. exterior wall) Vacuum breaker with bronze casing, ¾” inlet and outlet, Smith figure No. 5519. With interior isolation valve.

B. HB-2, Interior Wall Hydrant: Chrome finish T&S Brass Model #737-PC, with loose key. Provide with vacuum breaker. Mount 18” above finished floor.

C. Products by Ancon, Wade and Zurn with matching features and characteristics are considered equal.

(7) Roof Drains:

A. Jay R. Smith 1000 Series, or approve equal.

(8) Execution:

A. Store all fixtures and trim above ground in a covered location not subject to accidental damage by traffic or other construction activities. Handle fixtures and trim carefully to avoid chipping, denting, scratching, or other damage. Replace damaged items with same item in new condition.

B. Provide permanent metal and wire positioners and supports to secure fixtures and piping rigidly in proper alignment without sway or side play.

C. Anchor all fixture securely to withstand applied vertical load of not less than 250 pounds on the front of the fixture, without noticeable movement. Use all anchor points provided on fixtures and carriers.

D. Install all fixtures plumb, level, and flush to the finished Architectural surface so that the maximum gap between the fixture and the surface does not exceed 3/16”. Caulk the edge of the joint between fixture and surface with silicone waterproof caulking compound. Color as selected by Architect.

E. Adjust all functional components for proper operation in accordance with manufacturer’s recommendations, or as otherwise directed.

F. Clean all fixtures and trim thoroughly.

This section describes certain equipment of the domestic plumbing system, including related specific requirements, products, and methods of execution. Plumbing water, waste and vent piping, and fixtures are included with related work specified elsewhere.

(2) Water Hammer Arrestors: Sweat on, lead free, meeting requirements of ASNI/ASME A112.261M and the ASNI/ASSE 1010 A-F sizing convention. Sioux Chief, J.R.Smith, or Precision Plumbing Products, Inc.

(3) Trap Primers: Fully automatic, activated by drop in building water pressure. Precision Plumbing Products, Inc., Oregon No. 1 with distribution units as required.

(4) Water heaters:

A. Gas water heater(s) shall be a Power VT commercial type (latest generation) manufactured by the P.V.I. Corporation, or approved equal. Water heater(s) shall be nickel lined and include a direct-vent natural gas burner with electronic flame safeguard, intermittent ignition, main and pilot automatic gas valves, redundant solenoid gas valve, gas pressure regulator, diaphragm air switch for proof of blower operation, and flame inspection port. Heater(s) shall be equipped with 4” handhole cleanout, shall have an ASME working pressure of 160 psi, and stamped National Board, and listed by Underwriters Laboratories. Controls shall include: high temperature limit control (manual reset), upper and lower thermostats, combination temperature and pressure gauge, low water cutoff and ASME rated temperature relief valve. The heater(s) shall be insulated with a vermin-proof glass fiber insulation or equal. Heater(s) must meet or exceed current ASHRAE 90.1b-1990 for recovery efficiency and standby loss. The Jacket shall have a baked enamel finish. All internal surfaces of the heater(s) exposed to water shall have a nickel shield liner. Heater(s) tank shall have a 10-year warranty. Professional start-up service shall be included. Unit capacities shall be as scheduled. Provide with stainless steel AL-249C, Metalbestos or equal, sealed galvanized steel combustion air duct, or Schedule 80 CPVC where approved by PVI and the IMC.

on program and school size.

A. General

Furnish and install pumps with capacities scheduled. Pumps shall be single-stage, close coupled, in-line design. Capable of being serviced without disturbing piping connections.
Pump volute shall be bronze. Bronze impeller shall be enclosed type, dynamically balanced, keyed and secured to the shaft by a locking cap screw or nut.
The liquid cavity shall be sealed off at the motor shaft by an internally-flushed mechanical seal with ceramic seal seat and carbons seal ring, suitable for continuous operation at 211 degree F. A shaft sleeve shall completely cover the wetted area under the seal.
Pump shall be rated for minimum of 125 psi working pressure.
Premium efficiency motor shall meet NEMA specifications and shall be the size, voltage and enclosure scheduled.
Each pump shall be factory tested, thoroughly cleaned and painted with at least one coat of high-grade machinery enamel prior to shipment. Pumps shall be Taco, B&G, Armstrong, or approved equal.

(6) Compression Tank:

A. Carbon steel tank with heavy-duty butyl diaphragm, ASME rated for 240 deg F at 125 psig, gallon capacity as required.

B Mfg: Bell and Gossett, Amtrol, Taco, Teel or equal.

(7) Heat Trace: Raychem Wintergard Wet with metal braid and waterproof outer jacket, 120V, 6 watts per foot.

(8) Mixing Valve: Power Hydro-Guard Series E or Symmons Thermixer Series, no exceptions. Locate at hot water tank.

(9) Grease Interceptor: Cast iron with acid-resisting coating and white enamel coated flow control valve. Interceptor shall be furnished with acid-resistant coated lift-out sediment bucket and aluminum cover with “uni-lock” fasteners, with extensions and accessories as required.

(10) Temperature Gages: 3-inch dial face with stem length to match application. Stainless steel construction with plastic crystal and dished anti-parallax dial. Accurate to 1% of scale reading. Provide with separable wells and 20 to 240 deg F temperature range. Trerice, Marsh, Ashcroft, Weksler, or equal.

(11) Pressure Gauges: 3 ½ inch dial, adjustable pointer, blowout grommet and acrylic window, 1% of full scale accuracy. Provide with Anderson Greenwood gauge valve Model M931, VS Gauge Model 4801, Ashcroft 1009, Trerice No. 890, or Marsh Series 5000.

(12) Backflow Preventers DCVA and RPBA: Models as approved by Washington State, double check valve assembly and reduced pressure backflow preventer assembly. Units installed in hot potable water piping or serving water heaters or boilers shall be rated for continuous operation at 140 deg F. Provide with Airgap drain and route to nearest floor drain. Provide 2 year extended warranty.

(13) Washing Machine Supply/Drain WM-1: Guy Gray, hot and cold water, drain and electrical; coordinate with Division 16, BB200TS, or approved.

(14) Water Softener, Automatic: King K5 series commercial softener or as required, rated for a continuous flowrate of (to be determined) gpm at a pressure drop of 16 psi with a maximum of (to be determined) grains of hardness removal capacity. Provide with ASME rated corrosion resistant steel resin tank, all brass control valve non metallic brine tank and automatic brine system, and Electronic Controls System with digital integral components, King or approved equal. Prior to cold water system operation fully charge salt storage tank with pellet salt saver type salt, start water softener and submit manufacturer’s certification of proper installation and operation. Fully charge salt storage tank immediately prior to substantial completion.

(15) Execution

Water Hammer Arrestors

A. Install water hammer arrestors per manufacturer’s recommendations. Install water hammer arrestors at locations indicated on drawings, providing additional arrestors, sizes and locations as recommended by manufacturer. Where arrestor locations are not indicated on plans, provide arrestors located between the last two fixtures on all hot and cold potable water branch lines sized for the connected fixture units and length of branch line. Install in such a manner as to be readily accessible for repair or replacement.

B. Install trap primers for all floor drains. Field located trap primers shall be readily accessible for repair or replacement. Provide access panels where required.

C. Install backflow preventers as shown on drawings in accordance with the requirements of the AWWA Cross Connection Control Manual and the City of Pasco.

D. Install water heaters with accessory combustion air duct and vent flue, properly flashed at roof and sidewall. Coordinate and provide flue and combustion air enclosure chase(s) where required.

(2) Connection at Utility Gas Main:

A. Coordinate with the Natural Gas Company for installation of the new service.

B. Provide natural gas volume and pressure to the buildings as shown on the drawings and noted herein. Provide full flow strainer downstream of meter.

(3) Piping Above Ground:

A. Pipe: Black steel, standard weight, ASTM A53 Grade A or B, or ASTM A106, Grade A,B, or C.

(4) Piping Below Ground:

A. Welded Schedule 40 black steel piping and fittings.

B. Wrap exterior piping with Schuller Trantex pipeline tape E-20, protective pipe coating.

C. Encasement: PVC Schedule 40. STM D-1785. Use PVC solvent cement STM D-2564.

(5) Miscellaneous Products in Contact with Gas:

A. Provide flexible connectors, valves, strainers, unions and other appurtenances of a type designated and approved for handling the fuel gas used.

B. Regulators: Provide regulators of the capacity specified on the drawings to reduce line pressure to equipment operating pressure. Route full size vent to code approved outside location and provide screened end. Submit capacity curves with marked operating points. Manufacturer: Fisher or approved equal.

C. Ball Valves: Ball valves shall be 150-pound bronze body, stainless steel ball and stem with TFE seats, packing and gasket for sizes through 2-inch. Ball valves shall be Jenkins Fig. 32AS.

D. Strainers: Y type, cast iron or steel, with stainless steel screen, WOG Service, Armstrong, Crane, Sarco.

(6) Pressure Reducing Regulator:

A. Shall be cast iron or aluminum with threaded ends, spring and lower casing of aluminum and diaphragm and valve disc or nitrite.

B. Spring shall be furnished installed in the valve to control the leaving gas pressure to 7-14 inches water gauge when the service entering pressure is 2 psig (verify).

C. Shall be Fisher Controls having properly sized seat ring diameter selected for gas input capacities as shown on the drawings or as required by the equipment being served.

D. Coordinate with other Division 15 specifications sections. Provide individual equipment regulators as required to meet manufacturer’s recommendations. All other boiler service regulators shall be Fisher (model to be determined).

(7) Unions:

A. Union for steel pip: Ground Joint malleable iron. 250 psi.

B. Union between dissimilar metals: Dielectric type, to be unaffected by heat, cold, or fluid in pipe. EPCO or approved equal.
(8) Plug Valves:

A. 200 psig W.O.G. screwed cast iron body, lubricated, UL label for 175 psi working pressure, regular or full area port. ASTM A126 Grade B, wrench operated.

(9) Utility Markers:

A. Provide plastic tape utility markers over all buried piping. Provide identification on tape.

B. Material shall be Brady Identoline plastic tape, 6-inch, Seton.

(10) Installation:

A. Arrange all products to be readily accessible for inspection, testing and shut off of gas supply.

B. Install all pipe and fittings clean and free from cuttings, burrs, and defects in structure or threading, and thoroughly brushed and scale blown.

C. Do not install any building low pressure piping in concrete or masonry.

D. Provide connections at all gas consuming appliances. Connect all movable appliances with flexible connectors in accordance with the requirements of the gas code and appliance manufacturer’s instructions.

E. All gas piping concealed in walls shall use welded fittings.

F. All gas piping exposed in building or roof shall be painted safety yellow.

(11) Testing:

A. Test all gas piping before connection to gas source, equipment, or appliances. Do not cover or enclose any untested portion of the gas system.

B. Test all piping in accordance with the International Mechanical Code.

C. Test Fuel gas system at Full Load (volume) and verify pressure remains stable and constant at design pressure. Part of Commissioning Process.

D. Obtain a certified of Final Inspection from the Administrative Authority having Jurisdiction.

Section 15500, Hydronic and Irrigation Systems
(1) Pipe and Fittings:

A. Hydronic Systems (above grade Irrigation Systems) (Copper or Steel Option) to 210 degrees Fahrenheit:

1. Type L copper pipe, wrought copper fittings, solder: ASTM B32 GR Sn 50 and HN, HB, or TC

2. Steel Pipe: Schedule 40 ASTM A53ERW welded pipe and fittings, threaded or flanged at equipment.

(2) Temperature Gages:

A. Adjustable, 3 inch industrial type SST gage, glass lens, hermetically sealed, true anti-parallax design, 1% accuracy ASME B40.3 Grade A, with midpoint of range at operating conditions.

B. Separable wells for all temperature gages used in piping systems, minimum insertions of 2 ½”.

C. Manufacturers: Tel-Tru Model AA, or equal by Terrice, Marsh Ashcroft or Weksler.

(3) Automatic Flow Control Valves:

A. Silent non-clogging operation integral with readout ports. Provide with integral isolation valve or install adjacent isolation valve in piping.

B. Manufacturers: Hays, FDI, or approved equal.

(4) Centrifugal Pumps

A. Base- Mounted Pumps

1. General Description: Pumps shall be base-mounted, centrifugal, separately-coupled, end-suction, single-stage, bronze-fitted, radially split case design, and rated for 175 psig working pressure and 225º F continuous water temperature.

2. Casings Construction: Cast iron, with flanged piping connections, and threaded gage tappings at inlet and out flange connections.

3. Impeller Construction: Statically and dynamically balanced, closed, overhung, single-suction, fabricated from cast bronze conforming to ASTM B 584, keyed to shaft and secured by a locking capscrew.

4. Wear Rings: Replaceable, bronze.

5. Pump Shaft and Sleeve Bearings: Steel shaft, with bronze sleeve.

6. Seals: Mechanical seals consisting of carbon steel rotating ring, stainless steel spring, ceramic seats, and flexible bellows and gasket.

7. Pump Couplings: Flexible, capable of absorbing torsional vibration and shaft misalignment; complete with metal coupling guard.

8. Mounting Frame: Factory-welded frame and cross members, fabricated of steel channels and angles conforming to ASTM B 36. Fabricate for mounting pump casing, coupler guard, and motor. Grind welds smooth prior to application of factory finish. Motor mounting holes for field-installed motors shall be field-drilled.

9. Motor: Totally Enclosed Fan Cooled (TEFC), secured to mounting frame with adjustable alignment on mounting frame. Sizes as scheduled on Drawings. VFD driven motors shall be rated per NEMA MG1, Part 31 “Inverter Fed Motors”.

10. Variable frequence drive requirements are called out in Specification Section 15850, Item 19.
B. Dual-Arm Pumps

1. General Description: Pumps shall be dualArm split coupled Vertical In-Line centrifugal pumping unit.

2. Casing Construction: The cast casing with equal size suction and discharge flanges, having separate tapped flush line and pressure gauge connections, shall incorporate two radially split, single stage centrifugal pumps. The inlet and outlet ports on the casing shall be at least one size larger than the single pump size, so that both units may operate in parallel with no loss of single pump efficiency. Each port shall be fitted with an isolation valve that allow the units to operate in parallel, or standby, yet may be used to isolate one pumping unit for servicing or removal, with the other pump still operating.

3. Impellers: Each pump shall have a cast bronze dynamically balanced impeller.

4. Pump Shaft and Seals: Stainless steel shaft, lower seal flush throttle bushing, outside balanced mechanical seal with stainless steel parts and Viton secondary seal and bronze gland plate with stainless steel studs and nuts.

5. Flush Line: Each pump shall be fitted with a factory furnished flush line to the mechanical seal. The flush line is to be fitted with a manual air vent.

6. Pump Couplings: Rigid split type spacer coupling that permits removal of the mechanical seal without disturbing the pump or motor connections.

7. Motors: Each driving motor shall be an industry standard vertical solid shaft, squirrel cage induction type, built to NEMA standards. The motor shall be suitable for a 460 Volt, 3 Phase, 60 Hz power supply and shall be connected to the pump by means of a pump coupling.

(5) Gaskets:

A. Provide flange gaskets and special shape gaskets of sheet material of size and thickness required. EPDM material.

B. Mfg: GARLOCK or equal.

(6) Tank, Bladder, Type:

A. Tank with bladder with the acceptance volume (to be determined), ASME constructed.

B. Connections shall include system connection, charging valve, and drain connections.

C. Mrf: Amtrol or equal.

(7) Air Separator:

A. Inlet and outlet connections of the pipe size shown on the drawings. 150 PSI construction automatic high capacity, 150 psig, air vent, and blow-down valve for strainer.

B. Mfg: ITT Bell & Gossett Model 107A.

(8) Make up Water Assembly/ Pipe to drain

A. Reduced pressure back pressure regulating type with built in check valve, and relief valve for BTU capacity required, back-flow preventer, strainer, and pressure reducing valve with pressure gauge.

(9) Dual Feed Glycol Feeder, Chilled Water and Heating Water:

A. Provide IAT construction services GFS50-2 high temp glycol feeder, complete free standing system to maintain pressure and glycol level in two separate closed loop systems. The closed loop system pressure shall be maintained by monitoring the pressure and adding a premixed glycol solution when the pressure drops below a preset value. When the system pressure increases above the pressure switch setpoint, the control unit will shut the glycol feed off.

B. Provide a back flow prevention valve in the discharge of the pump to prevent system solution from backing up in to the feed tank when the glycol pump is off. A low level cutoff switch shall be provided to prevent the pump from running when the supply tank is empty. The cutoff switch also activates an alarm buzzer and closes the alarm dry contact. An adjustable pressure relief valve to be installed in the discharge lines. If system pressure increases beyond the limit set on the pressure relief valve, the valve opens, and the glycol solution is bypassed back into the solution tank.

C. The control panel shall be housed in a NEMA type enclosure and is prewired to include all electrical connections to the pump, pressure switch and level switch. A 18 gauge, 3 wire, 7’6”, 115VAC power cord is prewired and supplied with the system.

D. Warranty:

1. Glycol Feed Systems shall be guaranteed for one year, from the date of substantial completion, against manufacturing defect in material and workmanship

E. Manufacturers:

1. IAT Construction Services.

2. King Total Water Systems.

3. Flint Services, Incorporated.

4. or approved equal.

A. 35% by volume Dow Chemical Dowfrost HD Inhibited propylene glycol, no exceptions. Provide (3) full 55 gallon drums of 100% glycol and (3) empty 55-gallon drums at project completion. (Elementary)(Secondary and High School to have 6 extra full drums and 6 extra empty drums) Charge system with water of quality and chemical characteristics as recommended by DOW Chemical. Locate full barrels as directed by PSD No. 1.