SECTION 15476

SWIMMING POOL EQUIPMENT

PART 1 GENERAL

SECTION INCLUDES

Pipe and Pipe Fittings, Valves, Strainers

Pool Equipment

Circulators and Pumps

Pool Water Treatment Systems

PRODUCTS FURNISHED BUT NOT INSTALLED UNDER THIS SECTION

Section [_____-__________]: Supply of test kits, maintenance devices.

RELATED SECTIONS

Section 13152 - Swimming Pool.

Section 13171 - Hot Tub.

Section 16180 - Equipment Wiring Systems

REFERENCES

AGA Z21.56 - Gas Fired Pool Heaters.

ASME B16.22 - Wrought Copper and Wrought Copper Alloy Solder Joint Pressure Fittings.

ASME SEC 8D - Pressure Vessels.

ASTM A36 - Structural Steel.

ASTM B32 - Solder Metal.

ASTM B88 - Seamless Copper Water Tube.

ASTM D1785 - Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80, and 120.

ASTM D2467 - Socket-Type Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80.

ASTM D2855 - Making Solvent-Cemented Joints with Poly (Vinyl Chloride) (PVC) Pipe and Fittings.

AWS A5.8 - Brazing Filler Metal.

NFPA 54 - National Fuel Gas Code.

NFPA 70 - National Electrical Code.

NSF 50 - Circulation System Components for Swimming Pools, Spas, or Hot Tubs.

UL 174 - Household Electric Storage Tank Water Heaters.

UL 1081 - Swimming Pool Pumps, Filters, and Chlorinators.

UL 1261 - Electric Water Heaters for Pools and Tubs.

UL 1453 - Electric Booster and Commercial Storage Tank Water Heaters.

SUBMITTALS

Submit under provisions of Section [01300] [_____].

Shop Drawings: Indicate detailed assembly of components of each system or sub-system.

Product Data:

Include data on pipe materials, pipe fittings, valves and accessories.

Include component sizes, rough-in requirements, service sizes, and finishes.

Include product description, model, dimensions, component sizes, rough-in requirements, service sizes, and finishes.

Include dimension drawings of water heaters indicating components and connections to other equipment and piping.

Include heat exchanger dimensions, size of trappings, and performance data.

Include dimensions of tanks, tank lining methods, anchors, attachments, lifting points, trappings, and drains.

Indicate pump type, capacity, power requirements, and affected adjacent construction. Submit certified pump curves showing pump performance characteristics with pump and system operating point plotted. Include NPSH curve when applicable.

Provide electrical characteristics and connection requirements.

Manufacturer's Installation Instruction:	Indicate installation details, components assembly, and start-up procedures.

Manufacturer's Field Reports: Submit under provisions of Section [01400] [______].

Manufacturer's Field Reports: Indicate results of water treatment system set-up and testing.

PROJECT RECORD DOCUMENTS

Submit under provisions of Section [01700.] [________.]

Record actual locations of controlling devices and underfloor piping.

OPERATION AND MAINTENANCE DATA

Submit under provisions of Section [01700] [________].

Operation Data: Include installation instructions, assembly views, lubrication instructions, and assembly views.

Maintenance Data: Include maintenance and inspection data, replacement part numbers and availability, and service depot location and telephone number.

QUALITY ASSURANCE

Perform work in accordance with [local health department] [___________] regulations.

Work and components shall conform to NSF 50.

Maintain [one] [_____] copy of [each] document on site.

QUALIFICATIONS

Manufacturer: Company specializing in manufacturing the products specified in this Section with minimum [three] [_____] years [documented] experience.

Installer: Company specializing in performing the work of this Section with minimum [_______] years [documented] experience [approved by manufacturer].

REGULATORY REQUIREMENTS

Conform to [applicable] [___________] code for installation of [swimming pool] [whirlpool] [__________] systems.

Provide certificate of compliance from authority having jurisdiction [____________] indicating approval of installation.

DELIVERY, STORAGE, AND HANDLING

Delivery, store, protect and handle products to site under provisions of Section [01600] [_____].

Accept equipment on site in shipping containers with labelling in place. Inspect for damage.

Protect equipment from damage and elementS by maintain shipping packaging in place until installation. Maintain temporary inlet and outlet caps in place until installation.

WARRANTY

Provide [five] [_____] year warranty under provisions of Section [01700] [_______].

Warranty: Include coverage of [water heaters] [water storage tanks] [circulating pumps] [water treatment systems.]

MAINTENANCE SERVICE

Furnish service and maintenance of [water treatment systems] [_______] for [one] [___] year from date of Substantial Completion.

MAINTENANCE MATERIALS

Provide maintenance materials under provisions of [01700.] [________.]

Provide [one] [two] [____] test kits for manually testing.

Chlorine Residual.

pH Level.

Total Alkalinity.

EXTRA MATERIALS

Furnish under provisions of Section [01700] [_____].

Provide [two] [___] of water treatment systems test probes, indicator bulbs, and surge fuses.

PART 2 PRODUCTS

WATER PIPING AND PIPE FITTINGS

Copper Tubing:	ASTM B88, Type [K,] [L,] [M,] hard drawn.

Fittings: ASME B16.22, wrought copper.

Joints: [ASTM B32, solder, Grade 95TA.] [AWS A5.8, BCuP silver braze.]

PVC Pipe: ASTM D1785, Schedule 80.

Fittings: ASTM D2467, PVC.

Joints: ASTM D2855, solvent weld.

Unions for Pipe Sizes 2 inch (50 mm) and Under: PVC for plastic piping; bronze unions for copper pipe, soldered joints.

Flanges for Pipe Sizes over 2 inch (50 mm): PVC for plastic piping; bronze for copper piping.

Valves: PVC plastic body and ball, double lever handle, double union with [socket] [threaded] [flanged] ends, [EPDM] [Viton] seals, teflon seats.

Butterfly Valves: Iron body, bronze disc, resilient replaceable seat for service to 180 degrees F (82 degrees

celsius wafer style, 10 position lever handle.

FILTER PUMPS

Manufacturers:

[_____________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_________________________] Model [________].

[_________________________] Model [________].

[_________________________] Model [________].

Pool Filter Pumps:

Performance: [_____] gal/min ([___] L/sec) flow capacity, [_____] feet ([_____] kPa) head, [_____] hp ([_____] kW) motor.

Model [_____] manufactured by [___________.]

Whirlpool Filter Pumps:

Performance: [_____] gal/min ([_____] L/sec) flow capacity, [_____] feet ([_____] L/sec) head, [_____] hp ([_____] kW) motor.

Whirlpool Jet Pump:

Performance: [_____] gal/min ([_____] L/sec) flow capacity, [_____] feet ([_____] kPa) head, [_____] hp ([_____] kW) motor;

Model [_____] manufactured by [___________.]

Type: [UL 1081,] Horizontal shaft, single stage, direct connected, with motor, oil lubricated, with casing, integral hair and lint strainer, renewable wear ring, impeller, mechanical seal.

Casing: [Bronze] [Glass reinforced thermoplastic resin], self-primary, double volute rated for 125 psig (860 kPa) working pressure, with pipe flanges.

Impeller: [Bronze] [Fiberglass filled thermoplastic resin], closed [with casing wear rings.]

Shaft: Alloy steel with integral thrust collar and stainless steel sleeve.

Seal: Carbon rotating against a stationary ceramic seat.

Strainer: Hair and lint basket built into casing with a 12:1 ratio of free area to pipe inlet area, removable [lexan] cover.

Pump Motors:	Operate at 3500 rpm unless otherwise indicated. Refer to Section 15170.

CLOSE COUPLED PUMPS

Manufacturers:

[_____________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_________________________] Model [________].

[_________________________] Model [________].

[_________________________] Model [________].

Performance:

Flow: [_____] gal/min ([_____] L/sec), at [_____] feet ([_____] kPa) head.

Motor: [____] hp ([____] kW), [____] volt, [single] [three] phase, 60 Hz.

Type: Horizontal shaft, single stage, single or double suction, direct connected, radially or horizontally split casing, for 125 psig (860 kPa) maximum working pressure.

Casing: [Cast iron] [Bronze], with suction and discharge gage ports, renewable bronze casing wearing rings, seal flush connections, drain plug, flanged suction and discharge.

Impellers: Bronze, fully enclosed, keyed to motor shaft extension.

Shaft:	Stainless steel.

Seals: Carbon rotating against a stationary ceramic seat, 225 degrees fahrenheit (107 degrees celsius) maximum continuous operating temperature.

POOL FITTINGS AND EQUIPMENT

Manufacturers:

[_____________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_________________________] Model [________].

[_________________________] Model [________].

[_________________________] Model [________].

Main Drain: ABS body, [9 x 9] [_____] inch ([225 x 225] [_____] mm) square frame and grate, [44] [___] sq in ([284] [____] sq cm) open area, PVC outlet coupling, [2] [___] inch ([50] [____] mm) bottom connections with plugs;

Model [_________] manufactured by [______________].

****** [OR] ******

Main Drain: Cast iron body, [12 x 12] inch (300 x 300 mm) chrome bronze square frame and grate, 55 sq in (355 sq cm) open area, side outlet, 2 inch (50 mm) bottom connection with plug; Model [__________] manufactured by [____________].

Square Frames and Grates: ABS, [9 x 9 inch (225 x 225 mm)] [12 x 12 inch (300 x 300 mm)] [18 x 18 inch (450 x 450 mm)] frame and grates, [44 sq in (284 sq cm)] [78 sq in (503 sq cm)] [176 sq in (1135 sq cm)] ; Model [________] manufactured by [____________________].

Round Frames and Grates:	ABS, white color with stainless steel securing screws, 8 inches (200 mm) nominal diameter, 13 sq in (84 sq cm) open area; Model [__________] manufactured by [_____________________].

Anti-Vortex Drain: ABS, white color with stainless steel securing screws, 8 inches (200 mm) nominal diameter, 7 sq in (45 sq cm) open area, with [frame for concrete pool] [ mounting locknut and gasket for fiberglass pool]; Model [__________] manufactured by [______________].

Suction Drain: Bronze frame, chrome plated grille, nominal 4 x 10 inch (100 x 250 mm) size, 25 sq in (161 sq cm) open area, for maximum 105 gpm (400 L/min) flow at 1.5 ft/sec (0.46 m/s) velocity; Model [__________] manufactured by [__________________].

Wall and Floor Inlets: White cycolac, nominal 4 inch (100 mm) diameter, with internal spinner valve disc; Model [__________] manufactured by [_________________].

Gutter Drain: White cycolac, nominal 2.75 x 4.5 inch (70 x 114 mm), 4 sq in (26 sq cm) open area; Model [__________] manufactured by [_________________].

Ball Inlets:	[ABS] [Chrome plated cast bronze] body and ball with stainless steel screws, with 1-1/2 inch (40 mm) water inlet [,1/2 inch (13 mm) air connection], 30 gpm (2.6 L/s) nominal flow rate; Model [_________] manufactured by [___________________].

Skimmers: NFS approved, ABS molded body, with 10 inch (250 mm) diameter cover, 8 inch (200 mm) wide hinged weir with automatic level adjustment of 4.5 inches (140 mm), thermoplastic strainer with 160 cu in (2600 cu cm) capacity, 55 gpm (3.3 L/s) flow rating; Model [__________] manufactured by [__________________].

Hair and Lint Strainer: ABS molded body with basket with a 12:1 ratio of free area to pipe inlet area, removable [lexan] cover.

RESIDENTIAL FILTERS

Manufacturers:

[_____________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_________________________] Model [________].

[_________________________] Model [________].

[_________________________] Model [________].

Assembly: [UL 1081,] pressure sand type consisting of filter unit, multi-position valve with backwash indicator, circulating pump with built-in hair and lint strainer, and pump-to-filter hose connection.

Tank: One-piece shell of fiberglass-reinforced vinyl ester resin with separate top flange designed for maximum working pressure of 50 psig (345 kPa), with minimum bursting pressure of 300 psig (2070 kPa), and tested hydrostatically to 75 psig (518 kPa), mounted on fiberglass-

reinforced plastic base.

Internal Distribution System: Fabricated of thermoplastic extrusions and moldings with basket type upper distributor and underdrain consisting of slotted moldings extending radially from central standpipe.

Multi-Position Valve: Construct of corrosion-resistant and corrosion-proof materials with control handle that registers six positions: Filter, Backwash, Whirlpool, Drain, Test, Rinse and Winterize.

Filter Medium: Hard, durable grains of rounded or sub- angular silica sand, maximum 1% flat or micaceous particles, effective size of 0.17 inch (0.44 mm) and uniformity coefficient of 1.35.

Performance:	Flow rate of [____] gpm per sq ft ([____] L/sec/sq m) of filter area with total effective area of [_____] ([_____] sq m) and filtering capacity of [____] gpm per sq ft ([_____] L/sec/sq m).

COMMERCIAL FILTERS

Manufacturers:

[_____________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_________________________] Model [________].

[_________________________] Model [________].

[_________________________] Model [________].

Performance:	Flow rate of [____] gpm per sq ft ([____] L/sec/sq m) of filter area with total effective area of [_____] ([_____] sq m) and filtering capacity of [____] gpm per sq ft ([_____] L/sec/sq m).

Assembly: [UL 1081,] pressure sand-and-gravel type consisting of filter tank(s), face piping with butterfly valves, and gage panel.

Filter Tank:	Fabricate from ASTM A36 steel plate to ASME SEC 8D suitable for working pressure of [______] psig ([_______] kPa), and hydrostatic test pressure of [____] psig ([_____] kPa). Provide 11 x 15 inch (280 x 380 mm) manhole in top head and levelling jacks. Equip with 3/4 inch (20 mm) automatic air vent and tubing for connection to manual air vent on gage panel. Paint externally with primer, and epoxy coat internally.

Influent Distribution System: Schedule 80 PVC pipe consisting of head and laterals with orifices directed upwards, designed for maximum 8 ft/sec (2.44 m/s) velocity of water in laterals at rated filter capacity.

Underdrain System: Schedule 80 PVC pipe, consisting of header and laterals with orifices pointed downwards, designed for maximum 10 ft/sec (3.05 m/s) velocity of water in laterals at rated filter capacity. Space laterals and orifices to ensure uniform water flow through filter bed during filter and backwash operations.

Face Piping:	Class 125 cast iron flanged pipe fittings and Schedule 40 flange-connected steel pipe designed for maximum 10 ft/sec (3.05 m/s) velocity of water at rated filter capacity, incorporating line size butterfly valves. Provide sight glass at waste connection.

Gage Panel: Mount on tank and provide with 4 inch (100 mm) diameter influent and effluent pressure gages connected by tubing to nipples on tank nozzles; with NSF stainless steel name plate.

Provide Concrete fill in bottom of tank to within one inch (25 mm) of underside of effluent header.

Filter Support Media: Clean, hard rounded gravel with minimum average specific gravity of 2.5, free from shale, mica, clay sandstone, loam, and other impurities. Screen to sizes specified with maximum 2 % by weight of thin, flat, or elongated pieces. Filter support media shall be of four grades of gravel laid in level layers, each 4 inches (100 mm) deep as follows:

Coarse gravel (3/4 to 1-1/2 inches) (20 - 38 mm)

Medium gravel (1/2 to 3/4 inches) (13 - 20 mm)

Fine gravel (1/8 to 1/4 inches) (3 - 6 mm)

Buckwheat gravel (1/16 to 1/8 inches) (1.5 - 3 mm)

Filter Sand:	Hard, durable grains of rounded or sub-angular silica sand, free from clay, loam, dirt and organic matter, maximum 1% by weight flat or micaceous particles, effective size of 0.17 inch (0.44 mm) and uniformity coefficient of 1.35. Place upon filter support media in level bed minimum 20 inches (510 mm) deep.

COMMERCIAL VACUUM FILTERS

Manufacturers:

[_____________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_________________________] Model [________].

[_________________________] Model [________].

[_________________________] Model [________].

Filter Assembly:

Total filter area: [_____] sq ft ([_____] sq m).

Filter rate: [_____] gpm ([_____] L/min).

Flow rate: [_____] gpm/sq ft ([_____] m/min) of filter area.

Filtering capacity: [_____] gallons ([_____] litres) in [_____] hours.

Filtering Unit: Vacuum type utilizing principle of filtering through a cake of diatomaceous earth, where filtration operation is concluded on suction side of pump.

Filter Tank:	[0.188 inch (5 mm) thick steel internally lined with white plastic lining 0.01 inch (0.025 mm) thick, and painted on exterior with primer.] [11 gage (2.8 mm) Type 304 stainless steel.] Continuous weld and grind smooth joints. Brace externally around perimeter. Slope floor towards drain nozzle. Support floor with flat bars spaced as required. Flange external connection larger than 2 inches (51 mm). Internal connections for manifold shall be stainless steel. [Provide full length catwalk.]

Baffle: Coated steel or stainless steel, secured to sidewall of tank.

Filter Element: Rectangular bottom drain filter element shall consist of filter chamber connected to bottom discharge outlet, both fitted with filter cover. Fabricated filter chamber of high impact styrene, vacuum formed in two identical halves butted and joined over entire contact area.

Filter Element Cover: Woven monofilament linear polyethylene, sewn on two sides with dacron thread with velcro type closure for on-site installation maintenance or replacement.

Element Hold-Down: Coated steel or stainless steel with corrugated PVC foam spacer, stainless steel fasteners.

Collection Tube:	Schedule 80 PVC pipe, machined and drilled to accept element assembly. Finish one end of tube to mate effluent tank internal nozzle and seal opposite end. Secure element collection tube to bottom of tank with stainless steel clamp assembly.

SURGE TANKS

Manufacturers:

[_____________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_________________________] Model [________].

[_________________________] Model [________].

[_________________________] Model [________].

Tank: Reinforced fiber glass for 50 psi (345 kPa) working pressure with cover and gasket, fittings, and tappings for accessories, [_____] inches ([_____] mm) diameter, [_____] inches ([_____] mm) high, [____] gallon ([____] L) volume; Model [_________] manufactured by [_________________].

Float Valve:	PVC flange body with wafer type disc on stainless steel shaft and two stainless steel float rods and polyethylene floats. Disc shall be 20% open with float up and full open with float down; Model [_______] manufactured by [_________________________].

Remote Control Valve: Diaphragm type, hydraulically operated with [threaded] [flanged] connections, and float actuated, multi-port, two position pilot valve; Model [__________] manufactured by [__________________________].

POOL WATER TREATMENT (SALT SOLUTION)

Manufacturers:

[_____________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_________________________] Model [________].

[_________________________] Model [________].

[_________________________] Model [________].

Performance Requirement:	Suitable for [_____] bathers per day, maximum [_____] bathers per hour density.

Package:	System using electrolytic process to produce biocide of hypochlorous acid HOCl, and nascent oxygen from mild salt solution (4000 ppm sodium chloride). Components include:

Electrolysis cells.

Main power assembly.

Master console containing controls and operation indicating lights.

Water sampling system with probes for PH and HOCl residual.

PH dosing unit.

Operation: Continuously monitor pool water and generate HOCl and Oxygen to maintain an chlorine residual of 1.5 ppm. Maintain PH of 7.4 by feeding dilute muriatic acid.

POOL WATER TREATMENT (CHLORINE INJECTION)

Manufacturers:

[_____________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_________________________] Model [________].

[_________________________] Model [________].

[_________________________] Model [________].

Performance Requirement:	[UL 1081,] injection rate [0.2 - 4] [0.5 - 10] [1.0 - 20] [2.5 - 50] [5 - 100] pounds per day ([0.09 - 1.8] [0.23 - 4.5] [0.45 - 9.1] [1.13 - 22.7] [2.27 - 45.4] kg per day).

Regulator: Continuously monitor pH and chlorine levels and control chemical feed pumps. Maintain PH of 7.5 and free chlorine residual of 0.9 ppm. Mount regulator in surface mounted general purpose enclosure of fiberglass construction and incorporate:

On/off switch.

Green light to indicate regulator is energized.

Toggle switches for chemical feed pumps, with off, manual, and automatic positions.

Relays for direct switching of pump motors.

Yellow lights to indicate pump operation.

Red lights for abnormal conditions.

Interlock to prevent chlorine feed when pH is abnormal.

3 inch (80 mm) meters for continuous display of pH and chlorine levels.

Calibration controls for pH and chlorine.

Sensors:	Electrode with coaxial cable for attachment to regulator.

Flow Switch:	Shuts down controller on no flow through sampling line.

Gas Chlorinator:	Vacuum-operated chlorinator, comprising cylinder unit, control unit, and injector.

Cylinder Unit with [one] [two] [____] cylinders incorporating combined pressure reducing and shut-off valve, and chlorine supply indicator.

Control Unit containing injection meter, V-notch orifice, differential regulating valve, pressure

relief valve, and chlorine supply indicator.

Connect injector directly into piping.

****** [OR] ******

Liquid Chlorinator: System consisting of two tanks with injector pumps to feed liquid chlorine (bleach) and muriatic acid.

Solution Metering Pump: Positive displacement, diaphragm pump with adjustable flow rate, thermoplastic construction, continuous-duty fully enclosed electric motor and drive, and [built-in] relief valve.

Solution Tanks: [30] [50] gallon ([114] [189] L) capacity, polyethylene, self-supporting, [one] [5] gallon ([3.8] [19] L) graduated markings; molded fiberglass cover with recess for mounting pump and liquid level switch [, and direct reading scale].

GAS FIRED WATER HEATER

Manufacturers:

[_____________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_________________________] Model [________].

[_________________________] Model [________].

[_________________________] Model [________].

Type: Automatic, natural gas-fired, vertical storage.

Performance:

Storage: [____] gal ([____] L) capacity.

Input: [____] Btuh ([____] kW)

Minimum recovery rate: [____] gph ([____] L/s) with 100 degrees F (38 degrees C) temperature rise].

Maximum working pressure: 150 psig (1000 kPa)

Tank: [Glass lined] [Copper lined] welded steel [ASME labelled]; multiple flu passages, 4 inch (100 mm) diameter inspection port, thermally insulated with minimum 2 inches (50 mm) glass fiber, encased in corrosion-resistant steel jacket; baked-on enamel finish; floor shield and legs.

Controls: Automatic water thermostat with temperature range adjustable from 120 to 180 degrees F (49 to 82 degrees C), gas pressure regulator, multi-ribbon or tubular burner, 100 percent safety shut-off pilot and thermocouple, flue baffle and draft hood.

ELECTRIC WATER HEATERS

Manufacturers:

[_____________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_________________________] Model [________].

[_________________________] Model [________].

[_________________________] Model [________].

Type: Factory-assembled and wired, electric, [vertical] [horizontal] storage.

Performance:

Storage: [____] gal ([____] L) capacity.

Input: [____] kW.

Minimum recovery rate: [____] gph ([____] L/s) with 100 degrees F (38 degrees C) temperature rise].

Maximum working pressure: 150 psig (1000 kPa)

Electrical Characteristics:

[____] volts, [single] [three] phase, 60 Hz [[____] minimum circuit ampacity].

[____] amperes maximum [fuse size] [circuit breaker size] [over current protection].

Tank: [Glass lined] [Copper lined] welded steel; 4 inch (100 mm) diameter inspection port, thermally insulated with minimum 2 inches (50 mm) glass fiber encased in corrosion-resistant steel jacket; baked-on enamel finish.

Controls: Automatic immersion water thermostat; externally adjustable temperature range from 60 to 180 degrees F (16 to 82 degrees C), flanged or screw-in nichrome elements, high temperature limit thermostat.

Accessories:	Brass water connections and dip tube, drain valve, high-density magnesium anode, and ASME rated temperature and pressure relief valve.

HEATING BOILER

Manufacturers:

[_____________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_________________________] Model [________].

[_________________________] Model [________].

[_________________________] Model [________].

Performance:

Gross input: [___] Btuh ([_____W), at sea level.

Gross output: [___] Btuh ([___] W), at sea level.

Type: Gas-fired water tube boiler, with copper finned tube heat exchanger, steel jacket with glass fiber insulation, with gas burner, thermometer and pressure gauge, immersion thermostats for operating and high limit protection, 100 percent safety shut-off electric gas valve with transformer, electronic spark ignited safety pilot and pilot burner, gas pressure regulator, manual gas shut-off, low water cut off, ASME rated temperature and pressure relief valve, automatic boiler fill and expansion tank, draft diverter.

Pump:

Pump Capacity: [___] gpm ([___] L/s)].

Type: All bronze, in-line circulation pump mounted [on boiler] [between heater and storage tank].

Electrical Characteristics:

[____] hp ([____] kW)], [____] rated load amperes.

[____] volts, [single] [three] phase, 60 Hz [[____] minimum circuit ampacity].

Control:	Tank mounted immersion thermostat set at [____] degrees F ([____] degrees C).

SHELL AND TUBE TYPE HEAT EXCHANGER

Manufacturers:

[_____________________________] Model [________].

Other acceptable manufacturers offering equivalent products.

[_________________________] Model [________].

[_________________________] Model [________].

[_________________________] Model [________].

Shell: [Stainless steel] [Steel] with [threaded] [or] [flanged] piping connections and necessary trappings, steel saddle and attaching U-bolts, designed for heating fluid in shell and heated fluid in tubes.

Heads: Brass, with brass tube sheets, threaded or flanged for piping connections.

Tubes: [U-tube type with 3/4 inch (19 mm) OD minimum seamless copper tubes suitable for 125 psi (860 kPa) working pressure, with tube bundle removable for inspection and cleaning.] [Stainless steel coil.]E.Code: ASME Code for pressure vessels for service pressures, ASME "U" symbol stamped on heat exchanger.

Accessories:

Wells for temperature regulator sensor [and high limit sensor] at water outlet.

ASME rated pressure and temperature relief valve on water outlet.

ASME rated pressure relief valves from tapping on heated water side, set at 120 psig (820 kPa).

ASME rated pressure relief valve on [water] [steam] inlet on downstream side of control valve.

Thermometers and pressure gage tappings in water inlet and outlets.

Vacuum breaker and pressure gage tapping with pigtail siphon in shell.

PART 3 EXECUTION

INSTALLATION

Install equipment in accordance with manufacturer's instructions.

Install piping to conserve building space, not interfere with use of space and other work. Route piping in orderly manner, and maintain gradient. Group whenever practical at common elevations.

Install piping to allow for expansion and contraction without stressing pipe, joints, or connected equipment. Provide access to valves and fittings.

Pipe relief valve outlet and backwash to nearest floor drain.

Install unions downstream of valves and at equipment or apparatus connections.

Pumps

Provide air cock and drain connection on horizontal pump casings.

Provide line sized valve [and strainer] on suction and line sized soft seated check valve and valve on discharge.

Decrease from line size, with long radius reducing elbows or reducers. Support piping adjacent to pump such that no weight is carried on pump casings. Provide supports under elbows on pump suction and

discharge line sizes 4 inches (100 mm) and over.

Filter Tanks

Provide support for tanks independent of building structural framing members.

Clean and flush tank [prior to delivery to site.] [after installation.] Seal until pipe connections are made.

Water Heaters

Install water heaters in accordance with [AGA] [NSF] [NFPA] [UL] requirements.

Coordinate with plumbing piping and related [fuel piping] [gas venting] [electrical] work to achieve operating system.

Heat Exchangers

Install unit with clearance for tube bundle removal without disturbing other installed equipment or piping.

Pipe relief valves and drains to nearest floor drain. [Pitch shell for condensate drain to traps.]

Connect steam branch line from top of main. Pipe in flexible manner, pitched with steam flow, with pipe union connections. Provide steam pressure gage at exchanger inlet. Provide steam traps and valves as indicated.

SURGE TANK SCHEDULE

Drawing Code____TK-1________TK-2________TK-3____TK-4

Location

Service

Capacity

Diameter

Length

PUMP SCHEDULE

Drawing Code________P-1 ____P-2 ____P-3 ____P-4

Manufacturer

Model No.

Location

Service

Capacity

Head

Minimum Efficiency

Motor Size

Motor volt/phase/cycle

HEAT EXCHANGER SCHEDULE

Drawing Code____HE-1________HE-2________HE-3____HE-4

Location

Service

Heating Media

Type

Entering

Leaving

Flow

Max. Head Loss

Fouling Factor

Working Pressure

Heated Media

Type

Entering

Leaving

Flow

Max. Head Loss

Fouling Factor

Working Pressure

END OF SECTION