Attachment 3 - Technical Specifications.pdf

CONSTRUCTION HOISTING, RIGGING AND CRANE OPERATIONS SECTION 015416

FAC ENGINEERING ROME 015416 – 1 May 23, 2026 | Rev. 0

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SECTION 015416

CONSTRUCTION HOISTING, RIGGING AND CRANE

OPERATIONS

Technical Specification — Coordinated with Italian / EU Standards

FAC ENGINEERING ROME | May 23, 2026 | Rev. 0

FAC ENGINEERING ROME 015416 – 2 May 23, 2026 | Rev. 0

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PART 1 – GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract apply to this Section.

B. Related Sections:

1. Section 024116 - Structure Demolition

2. Section 238143 - Air-Source Heat Pumps

3. Section 237300 - Air Handling Units

4. Section 232123 - Hydronic Pumps

5. Section 134813 - Acoustic Equipment Enclosures

6. Section 312316 - Excavation, Trenching, and Backfill

1.2 SUMMARY

A. Scope: All hoisting, rigging and crane operations required to lift, lower, place and remove equipment and materials on this project, including the means, methods, planning, supervision and documentation for safe lifting.

B. Lifting operations include, but are not limited to:

1. Placement of mechanical equipment (outdoor units, AHU sections, pumps, tanks and similar)

2. Removal and disposal of decommissioned plant

3. Lowering of demolition elements

4. Placement of acoustic enclosures/barriers and other heavy plant

C. Lifting is a means-and-methods responsibility of the Contractor; all lift engineering (load weights, crane selection, rigging design) is performed by the Contractor's competent persons.

1.3 DEFINITIONS

A. Lift Plan: documented plan for a lifting operation (or category of routine lifts) defining loads, equipment, rigging, ground conditions, sequence, exclusion zones and personnel; prepared under the responsibility of the appointed person.

B. Critical lift: a lift requiring enhanced planning and approval; a lift shall be treated as critical when any of the following applies: load > 75% of the crane's rated capacity at the working radius; lift over or adjacent to occupied buildings, the public, or live services; tandem (multi-crane) lift; lift near overhead power lines; blind lift; or any lift so designated by the appointed person / CSE.

C. Appointed person: competent person responsible for planning and supervising the lifting operation per

UNI ISO 12480-1.

D. Crane operator): operator holding the “Abilitazione per the Accordo Stato-Regioni 22/02/2012” for the relevant crane type.

E. Slinger / rigger and signaller (banksman): trained persons who attach/detach the load and direct the operator.

F. SWL / WLL (Safe / Working Load Limit): maximum load an item of equipment or accessory may lift, as marked and certified.

G. Ground bearing pressure: pressure transmitted by crane outriggers/tracks to the ground; compared against the allowable bearing capacity to size mats/cribbing.

H. Exclusion zone: area kept clear of personnel during lifting, covering the lift radius and any drop/swing zone.

1.4 APPLICABLE STANDARDS

Key Applicable Standards

D.Lgs. 81/2008 Tit. III Use of work equipment - lifting equipment and accessories (Art. 70-73, Allegato

V/VI)

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D.Lgs. 81/2008 Art. 71 Periodic checks of lifting equipment; Allegato VII inspection intervals

D.M. 11/04/2011 Periodic verification of lifting equipment (INAIL / authorised bodies)

UNI ISO 12480-1 Cranes - safe use - Part 1: general (lift planning, appointed person, signaller)

UNI EN 13000 Cranes - mobile cranes - requirements

UNI EN 14439 Cranes - safety - tower cranes (where used)

UNI ISO 4309 Cranes - wire ropes - care and maintenance, inspection and discard

UNI EN 13414-1/2/3 Steel wire rope slings - safety

UNI EN 1492-1/2 Textile slings - flat woven webbing slings / roundslings - safety

UNI EN 1677-1..6 Components for slings - hooks, links, master links - safety

UNI EN 13155 Cranes - non-fixed load-lifting attachments (below-the-hook devices, spreader beams)

Accordo Stato-Regioni

22/02/2012

Mandatory operator training/abilitazione for mobile, tower and self-erecting cranes

Dir. 2006/42/CE Machinery Directive - CE marking of cranes and lifting accessories

EM 385-1-1 Section 16 USACE Safety Manual - cranes and rigging; Critical Lift Plan (where contractually invoked)

D.M. 37/2008 Building systems – installer qualifications and requirements

D.Lgs. 192/2005 e s.m.i. Energy performance of buildings

D.Lgs. 81/2008 Consolidated Workplace Safety Act

1.5 SUBMITTALS

A. Lift Plan: for each critical lift, and a generic lift plan for categories of routine lifts; per UNI ISO 12480-1;

submitted before the lifting operation. Minimum content: load identification and weight (with centre of gravity), crane selection and load/radius chart, working radius and configuration, outrigger reactions and ground-bearing assessment with mats/cribbing, rigging arrangement and accessory WLL, exclusion zone and drop/swing zones, maximum permissible wind speed, lift sequence, communication method, and personnel roles.

B. Crane documentation: make/model, capacity and load charts, CE declaration, and current periodic-verification report (D.M. 11/04/2011 / INAIL).

C. Personnel certification: crane operator “Abilitazione (Accordo Stato-Regioni 22/02/2012)”; appointed person, slinger/rigger and signaller training records.

D. Lifting accessories register: schedule of slings, shackles, spreader beams and below-the-hook devices with WLL, CE marking and inspection/test certificates (current).

E. Method statement and risk assessment: for the lifting operations, coordinated with the project

POS/PSC.

F. Insurance: evidence of cover for crane operations and suspended loads.

1.6 QUALITY ASSURANCE

A. Appointed person: competent person per UNI ISO 12480-1 responsible for the planning and supervision of all lifting operations.

B. Crane operators: hold valid “abilitazione per the Accordo Stato-Regioni 22/02/2012” for the crane type;

medically fit.

C. Slingers/riggers and signallers: trained and designated; only designated persons may attach loads and signal the operator.

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D. Where EM 385-1-1 is contractually invoked: comply with Section 16 (cranes and rigging), including the Critical Lift Plan procedure and a designated competent/qualified person for crane and rigging activities.

E. Equipment compliance: all cranes and accessories CE-marked, within current periodic-verification validity, and inspected before use.

PART 2 – EQUIPMENT

2.1 CRANES AND HOISTING EQUIPMENT

A. Type: mobile crane, tower crane, telehandler or hoist appropriate to the load, radius and site constraints; UNI EN 13000 (mobile) / UNI EN 14439 (tower).

B. Rating: rated capacity, at the working radius and configuration, with adequate margin for the load including rigging; load/radius chart available at the crane.

C. Certification and verification: CE-marked; current periodic verification per D.M. 11/04/2011; functional safety devices (load moment indicator/limiter, anti-two-block) operational.

D. Wire ropes: maintained and inspected per UNI ISO 4309; discard criteria observed.

2.2 LIFTING ACCESSORIES

A. Slings: steel wire rope (UNI EN 13414) or textile webbing/roundslings (UNI EN 1492); selected for the load, configuration and sling angle; WLL marked.

B. Components: hooks, shackles, master links and rings per UNI EN 1677; CE-marked, WLL rated, with safety latches on hooks.

C. Below-the-hook devices: spreader/lifting beams and frames per UNI EN 13155; certified, WLL marked, with documented design.

D. Condition: all accessories within current inspection validity, free of defects; defective items removed from service.

PART 3 – EXECUTION

3.1 LIFT PLANNING

A. Prepare and obtain approval of the Lift Plan before the lifting operation; classify each lift as routine or critical per Article 1.3.

B. Determine load weight and centre of gravity; select crane and configuration from the load/radius chart with margin; design the rigging arrangement and verify accessory WLL at the actual sling angles.

C. Assess ground bearing at the crane set-up position; provide outrigger mats/cribbing sized to the outrigger reactions and the allowable ground bearing (coordinate with Section 312316).

3.2 SITE SET-UP AND CONTROL

A. Establish the exclusion zone covering the lift radius and the drop/swing zones; keep personnel and the public clear; schedule lifts over or near occupied or public areas with COR approval and, where required, out of hours.

B. Set up the crane level and on stable ground; deploy outriggers fully on mats; verify safe load indicators are functioning.

C. Maintain safe clearance from overhead power lines, the building and adjacent structures; where clearance cannot be guaranteed, isolate/insulate or use a banksman with a defined approach limit.

D. Define and test the communication method (radio/hand signals) between signaller and operator before lifting.

3.3 LIFTING OPERATIONS

A. Only designated slingers attach the load and only the designated signaller directs the operator; one signaller at a time.

B. Perform a trial lift (load just clear of the ground) to confirm stability, balance and rigging before continuing.

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C. Do not exceed the rated capacity; never carry loads over personnel; control tag lines to prevent uncontrolled rotation; never leave a suspended load unattended.

D. Observe the maximum permissible wind speed stated in the Lift Plan and the crane manufacturer's limits; stop lifting in adverse weather (wind, lightning, poor visibility).

E. Stop the operation if any unplanned condition arises and re-assess before resuming.

3.4 INSPECTION AND RECORDS

A. Pre-use inspection of crane and accessories at the start of each shift; record defects and remove defective items from service.

B. Keep on site: crane periodic-verification report, operator licence, accessory register/certificates, and the approved Lift Plan for each lift.

C. Record completed critical lifts; report and investigate any incident or near-miss per the project

POS/PSC.

END OF SECTION 015416

TILING (PORCELAIN STONEWARE) SECTION 093013

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SECTION 093013

TILING (PORCELAIN STONEWARE)

FAC ENGINEERING ROME 093013 – 2 May 23, 2026 | Rev. 0

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PART 1 – GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract apply to this Section.

B. Related Sections:

1. Section 033000 - Cast-in-Place Concrete

2. Section 024119 - Selective Demolition

3. Section 099123 - Interior Painting

4. Section 232116 - Hydronic Specialties

1.2 SUMMARY

A. Scope: Furnish all labour, materials, and equipment for the supply and installation of porcelain stoneware (gres) floor tiling and associated screeds, skirtings, movement joints and sealants in plant rooms, technical / wet rooms and other areas indicated on the drawings.

B. Work includes:

1. Preparation of the substrate and laying of a new sloped screed (minimum 1% fall) to the floor drain

2. Supply and installation of slip-resistant porcelain stoneware tiles, rating R11

3. Coved or square skirtings, edge trims, transition and movement-joint profiles

4. Tile adhesive, grouting and perimeter / movement-joint sealing

C. Tile size, colour and finish to be confirmed with the COR prior to ordering (sample approval).

1.3 DEFINITIONS

A. Porcelain stoneware (gres porcellanato): fully vitrified dry-pressed ceramic tile, group BIa per UNI EN 14411, water absorption E <= 0.5%; high mechanical and chemical resistance.

B. R-rating (R9-R13): slip-resistance classification from the oil-wetted ramp test (DIN 51130); higher number = greater slip resistance. R11 is required for technical / wet plant rooms.

C. Screed (massetto): levelling / sloping layer between the structural slab and the tile bed; cementitious or pre-mixed, classified per UNI EN 13813.

D. Movement joint: joint that accommodates thermal and structural movement; carried through the tile finish at perimeters, over structural joints, and in fields per UNI 11493-1.

1.4 PERFORMANCE REQUIREMENTS

A. Slip resistance: floor tiles classified R11 minimum per DIN 51130 / UNI EN 16165 (annex B); certificate required with submittal.

B. Water absorption: E <= 0.5% (group BIa) per UNI EN ISO 10545-3.

C. Breaking strength: modulus of rupture >= 35 N/mm2; breaking strength >= 1300 N (thickness >= 7.5

mm) per UNI EN ISO 10545-4.

D. Deep abrasion (unglazed): <= 175 mm3 per UNI EN ISO 10545-6.

E. Chemical resistance: class UA / ULA (acids and alkalis) per UNI EN ISO 10545-13, suitable for plant-room cleaning agents.

F. Reaction to fire: A1 / A1fl per UNI EN 13501-1.

G. Falls: finished floor laid to a minimum 1% fall to the drain with no ponding.

1.5 APPLICABLE STANDARDS

UNI EN 14411 Ceramic tiles - definitions, classification, characteristics (dry-pressed porcelain, group BIa, E <= 0.5%)

UNI EN ISO 10545-1..17 Ceramic tiles - sampling and test methods (water absorption, strength, abrasion, FAC ENGINEERING ROME 093013 – 3 May 23, 2026 | Rev. 0

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slip, chemical)

UNI EN ISO 10545-6 Resistance to deep abrasion for unglazed tiles (porcelain) - <= 175 mm3

DIN 51130 / BGR 181 Slip resistance - ramp test with oil; R-rating R9 to R13 (R11 required for wet plant rooms)

DIN 51097 (A/B/C) Slip resistance - barefoot wet areas ramp test (where applicable)

UNI EN 16165 Determination of slip resistance of pedestrian surfaces (consolidated method)

UNI 11493-1 Ceramic tiling - design, installation and maintenance rules (Italian practice)

UNI EN 12004 Adhesives for ceramic tiles - classification (cementitious C2 TE S1 min.)

UNI EN 13888 Grout for ceramic tiles (cementitious CG2 WA or reaction-resin RG)

UNI EN 13813 Screed material and floor screeds - properties and requirements

UNI EN 13501-1 Reaction to fire classification (tiles A1 / A1fl non-combustible)

UNI EN 14891 Liquid-applied waterproofing membranes under tiling (where required)

UNI EN 1992-1-1 Eurocode 2 – Design of concrete structures

UNI EN 206 Concrete – specification and performance

D.M. 37/2008 Building systems – installer qualifications and requirements

D.Lgs. 192/2005 e s.m.i. Energy performance of buildings

D.Lgs. 81/2008 Consolidated Workplace Safety Act

1.6 SUBMITTALS

A. Product data and samples: tiles (min. 2 full tiles per type), adhesive, grout, sealant, trims; for COR approval of colour, size and finish before ordering.

B. Test certificates: slip resistance (R11), water absorption, breaking strength, deep abrasion, chemical resistance, reaction to fire.

C. Setting-out / tiling layout drawing: showing falls to drain, tile coursing, movement-joint locations, skirting and trim details.

D. Screed mix design: screed type, class (UNI EN 13813), thickness, curing and maximum residual moisture before tiling.

E. Maintenance data: cleaning and maintenance instructions; attic stock (min. 2% of each tile type, full boxes).

1.7 QUALITY ASSURANCE AND WARRANTY

A. Installer: specialist tiler with documented experience on comparable technical-floor projects.

B. Mock-up / sample area: install a sample area (min. 1 m2) including a movement joint and skirting for COR approval; approved sample becomes the quality benchmark.

C. Warranty: 2 years against debonding, cracking, lippage and grout failure under normal plant-room use.

PART 2 – PRODUCTS

2.1 TILES

A. Type: through-body / coloured-body porcelain stoneware, dry-pressed, group BIa per UNI EN 14411.

B. Surface finish: matt / structured non-slip, rating R11 (DIN 51130).

C. Nominal thickness: >= 9 mm for floors (or as required by loading).

D. Format / colour: to be approved by the COR; rectified edges preferred for narrow joints.

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2.2 SCREED

A. Material: cementitious screed per UNI EN 13813, minimum class C20-F4; pre-blended product preferred for consistency.

B. Bond: bonded or unbonded as per substrate condition; primer/bonding bridge where bonded.

C. Falls: formed to a minimum 1% slope to the drain.

2.3 ADHESIVE, GROUT AND SEALANT

A. Adhesive: improved cementitious adhesive, class C2 TE S1 minimum (deformable) per UNI EN 12004;

full-bed (buttering/floating) coverage for plant-room floors.

B. Grout: improved cementitious grout class CG2 WA (UNI EN 13888); reaction-resin (RG, epoxy) grout where chemical / hygiene resistance is required at drains and skirtings.

C. Sealant: neutral-cure silicone or polyurethane at movement joints and perimeters; colour to match grout.

2.4 TRIMS AND ACCESSORIES

A. Skirtings: matching tile or coved profile, minimum 100 mm high; sealed at floor junction.

B. Edge / transition profiles: stainless steel or anodised aluminium at exposed edges and material transitions.

C. Movement-joint profiles: proprietary metal/elastomer profiles for field and structural joints.

D. Waterproofing (where indicated): liquid-applied membrane to UNI EN 14891 with reinforced corners and drain collars.

PART 3 – EXECUTION

3.1 EXAMINATION AND PREPARATION

A. Verify the structural substrate is sound, clean, and free of laitance, oil, and debris (coordinate with demolition of existing flooring/platforms).

B. Confirm drain position and invert level; set out falls before screeding.

C. Verify screed is cured and residual moisture is within the adhesive manufacturer's limit before tiling.

3.2 INSTALLATION

A. Lay screed to falls; cure per manufacturer's instructions before tiling.

B. Apply adhesive with the correct notched trowel; achieve full bed contact (no voids) under plant-room floor tiles; back-butter large-format tiles.

C. Maintain uniform joint width; lippage within UNI 11493-1 tolerances; keep tile falls true to the drain with no ponding.

D. Form movement joints at perimeters, over structural joints, at changes of substrate, and in fields per UNI 11493-1; do not bridge with adhesive or grout.

E. Install skirtings and trims; seal floor/wall junctions and around the drain.

3.3 GROUTING AND SEALING

A. Grout after adhesive has cured; tool joints flush; clean tile faces before haze sets.

B. Apply sealant to movement and perimeter joints; tool to a neat profile.

3.4 PROTECTION, TOLERANCES AND ACCEPTANCE

A. Flatness: maximum 2 mm deviation under a 2 m straightedge.

B. Ponding test: flood-test falls to the drain; no standing water after drainage.

C. Protect finished floor from traffic and following trades until grout/sealant fully cured.

D. Final professional cleaning of the tiled surface at completion.

END OF SECTION 093013

INTERIOR PAINTING SECTION 099123

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SECTION 099123

INTERIOR PAINTING

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PART 1 – GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract apply to this Section.

B. Related Sections:

1. Section 093013 - Tiling

2. Section 230553 - Identification for HVAC Systems

3. Section 233113 - Metal Ducts

1.2 SUMMARY

A. Scope: Furnish all labour, materials, and equipment for surface preparation, skim coating (rasatura), priming and painting of interior walls and ceilings, including plant rooms and technical rooms (walls and ceilings) and areas disturbed by the works (making good).

B. Work includes:

1. Preparation: cleaning, scraping, filling, sanding, and repair of substrate defects

2. Skim coating (rasatura) to achieve a uniform, smooth substrate

3. Primer / sealer coat appropriate to the substrate

4. Minimum two finish coats of washable interior paint

5. Anti-mould treatment in damp / poorly ventilated technical rooms

C. Colours and sheen to be confirmed with the COR (sample/colour approval).

1.3 DEFINITIONS

A. Skim coat (rasatura): thin levelling layer of filler / skimming compound applied to produce a smooth, uniform surface before priming and painting.

B. Primer (fissativo/aggrappante): coat that consolidates and seals the substrate and promotes adhesion of finish coats.

C. Wet-scrub resistance class (UNI EN ISO 11998): durability rating of the dry film; Class 1 denotes a washable, hard-wearing coating.

D. VOC: volatile organic compounds; products shall comply with the limits of Dir. 2004/42/CE.

1.4 PERFORMANCE REQUIREMENTS

A. Plant-room and technical areas: washable coating, wet-scrub resistance Class 1-2 (UNI EN ISO 11998); good opacity (class 1-2 UNI EN 13300).

B. Mould-prone areas: anti-mould / fungicidal paint system, breathable where applied to masonry.

C. VOC: low-VOC, water-borne products compliant with Dir. 2004/42/CE.

D. Adhesion: cross-cut classification <= 1 per UNI EN ISO 2409 on prepared substrates.

E. Steelwork (where painted): corrosion-protection system per UNI EN ISO 12944 appropriate to the corrosivity category (e.g., C3 interior plant room).

1.5 APPLICABLE STANDARDS

UNI EN 13300 Water-borne coatings for interior walls/ceilings - classification (gloss, opacity, grain, wet-scrub resistance)

UNI EN ISO 11998 Wet-scrub resistance of coatings (Class 1 = washable/durable)

UNI 8681 / UNI 11021 Classification of paint products and coating systems

Dir. 2004/42/CE VOC limits in decorative paints and varnishes (Decopaint Directive)

UNI EN ISO 12944-1..9 Corrosion protection of steel by protective paint systems (for metal substrates)

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UNI EN 1062 (series) Coatings and coating systems for masonry and concrete

UNI EN ISO 2409 Cross-cut test - paint adhesion

UNI EN 13501-1 Reaction to fire classification of coatings/linings

UNI EN ISO 7783 Water-vapour transmission of coatings (breathability)

D.M. 37/2008 Building systems – installer qualifications and requirements

D.Lgs. 192/2005 e s.m.i. Energy performance of buildings

D.Lgs. 81/2008 Consolidated Workplace Safety Act

1.6 SUBMITTALS

A. Product data: technical data sheets and safety data sheets for skim compound, primer, finish paint, and anti-mould products; VOC content stated.

B. Colour samples / draw-downs: for COR approval; on-site sample patch (min. 1 m2) per colour/finish before full application.

C. Coating system schedule: substrate type -> preparation -> skim -> primer -> finish coats, with dry-film build and recoat times.

D. Maintenance data: cleaning instructions and attic stock (min. 1 sealed can per colour).

1.7 QUALITY ASSURANCE AND WARRANTY

A. Applicator: experienced decorator; all products of a single manufacturer within each coating system (compatibility).

B. Environmental conditions: apply within the manufacturer's temperature/humidity limits; provide ventilation and dust control.

C. Warranty: 2 years against peeling, flaking, blistering and premature discolouration.

PART 2 – PRODUCTS

2.1 PREPARATION MATERIALS

A. Fillers / skim compound (rasante): cementitious or ready-mixed interior skimming compound compatible with the substrate and the finish system.

B. Primer / sealer: water-borne consolidating primer for plaster/masonry; adhesion primer for previously painted or smooth surfaces; rust-inhibiting primer for ferrous metal.

2.2 FINISH PAINTS

A. Walls and ceilings (general): water-borne washable interior emulsion, matt/eggshell, UNI EN 13300 opacity class 1-2, wet-scrub Class 1-2.

B. Technical/plant rooms: hard-wearing washable acrylic; anti-mould additive where humidity is expected.

C. Metalwork (where required): primer + finish per UNI EN ISO 12944 for the relevant corrosivity category.

PART 3 – EXECUTION

3.1 PREPARATION

A. Protect floors, equipment, ductwork, panels, labels and fittings; mask or remove escutcheons and hardware.

B. Clean substrates; remove loose/flaking material, efflorescence, grease and dust; treat any mould before skimming.

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C. Fill cracks and defects; apply skim coat (rasatura) to achieve a smooth, uniform surface; sand between coats.

D. Do not paint over HVAC identification labels, valve tags, or nameplates (Section 230553).

3.2 APPLICATION

A. Apply primer/sealer suited to the substrate; allow full recoat time.

B. Apply a minimum of two finish coats to uniform colour and opacity, free of brush/roller marks, sags and holidays.

C. Paint walls and ceilings complete in the areas indicated; make good all areas disturbed by the works to match adjacent finishes.

D. Maintain a wet edge; observe manufacturer's temperature, humidity and ventilation requirements.

3.3 INSPECTION, CLEAN-UP AND ACCEPTANCE

A. Inspect under final lighting; touch up defects; final coat to present a uniform appearance.

B. Remove masking and protection; clean splashes from floors, equipment and glass.

C. Remove and lawfully dispose of paint waste and empty containers; do not discharge washings to drains.

END OF SECTION 099123

SANITARY, SEWER, AND HVAC CONDENSATE DRAINAGE PIPING SECTION 221316

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SECTION 221316

SANITARY, SEWER, AND HVAC CONDENSATE

DRAINAGE PIPING

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PART 1 – GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract apply to this Section.

B. Related Sections:

1. Section 232113 – Hydronic Piping

2. Section 232116 – Hydronic Specialties

3. Section 237300 – Air Handling Units

4. Section 238216 – Fan-Coil Units

5. Section 238143 – Air-Source Heat Pumps

6. Section 233113 – Metal Ducts

7. Section 230716 – HVAC Thermal Insulation

8. Section 312316 – Excavation, Trenching, and Backfill

1.2 SUMMARY

A. Scope: Furnish and install all gravity drainage piping for the project, comprising:

1. Sanitary waste and vent piping serving plumbing fixtures (WCs, basins, sinks, urinals, floor drains)

2. Building drainage discharge from inside the building envelope to the external sewer connection

3. Site sewer extension from building envelope to public sewer or on-site treatment

4. HVAC condensate drainage from fan-coil units, air-handling units, heat-pump indoor sections, dehumidifiers, and humidifier blowdown

5. Defrost / drip-pan drainage from outdoor heat-pump units

6. Storm/rainwater drainage where indicated on architectural drawings

7. Cleanouts, traps, vents, and inspection access provisions

B. Design code precedence: International Plumbing Code (ICC IPC 2021) is the primary design reference for sizing, slope, materials, and termination of all drainage piping and HVAC condensate disposal (per COR's directive). Italian / European standards (UNI EN 12056 series, UNI EN 752, D.Lgs. 152/2006) apply concurrently; where conflict arises, the more stringent requirement governs.

1.3 DEFINITIONS

A. Sanitary drainage: piping system removing wastewater from plumbing fixtures (greywater + blackwater) to the building sewer connection.

B. Building drain: the lowest piping inside the building envelope that receives discharge from soil, waste, and other drainage pipes and conveys it to the building sewer.

C. Building sewer: the piping extending from the end of the building drain to the public sewer, septic tank, or other approved disposal point.

D. HVAC condensate: water condensed from atmospheric moisture on cooling coils (FCU, AHU, heat pump), or produced during defrost cycles; pH typically 6.5–8 but may be slightly acidic on some materials.

E. Indirect waste pipe: waste pipe that does not connect directly to the sanitary drainage system, but discharges through an air gap into a fixture, receptor, or interceptor that is so connected — per ICC IPC Chapter 8. HVAC condensate is classified as indirect waste and shall discharge through an air gap.

F. Air gap: unobstructed vertical distance, through the free atmosphere, between the lowest opening of any pipe supplying water or waste to a receptor and the flood-level rim of that receptor; minimum 25 mm or twice the effective pipe diameter, whichever is greater (ICC IPC 802.2).

G. Trap: fitting providing a liquid seal that prevents back-passage of air and odours without materially affecting flow.

H. Trap seal depth: vertical distance between the dip and the crown weir of the trap; minimum 50 mm, maximum 100 mm (ICC IPC 1002.4 / UNI EN 12056-2).

I. Cleanout: access opening in a drainage piping system used for clearing obstructions.

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ICC IPC 2021 International Plumbing Code – Chapter 3 (General Regulations), Chapter 7

(Sanitary Drainage), Chapter 8 (Indirect/Special Waste), and Section 314

(Condensate Disposal)

ICC IPC Section 314 Condensate Disposal – HVAC equipment condensate piping size, materials, slope, and termination

ICC IPC Section 314.2.3 Condensate drain pipe minimum size based on coil capacity (≤ 20 ton: DN 20;

21–40 ton: DN 25; 41–90 ton: DN 32; 91–125 ton: DN 40; 126–250 ton: DN 50)

UNI EN 12056-1 Gravity drainage systems inside buildings – general and performance requirements

UNI EN 12056-2 Gravity drainage systems inside buildings – sanitary pipework, layout and calculation

UNI EN 12056-3 Gravity drainage systems inside buildings – roof drainage, layout and calculation

UNI EN 12056-5 Gravity drainage systems inside buildings – installation and testing

UNI EN 752 Drain and sewer systems outside buildings – sewer system management

UNI EN 1610 Construction and testing of drains and sewers (trench backfill, joint testing)

UNI EN 877 Cast iron pipes and fittings for sanitary drainage (SML-type)

UNI EN 1329-1 PVC-U piping systems for soil and waste discharge inside building

UNI EN 1451-1 Polypropylene (PP) piping systems for soil and waste

UNI EN 1453-1 Structured-wall PVC-U pipes for soil and waste discharge

UNI EN 12200 PVC-U rainwater piping systems

UNI 9183 Sistemi di scarico delle acque usate – design criteria

D.Lgs. 152/2006 Environmental Code – Part III (water protection, discharge of treated wastewater)

D.M. 37/2008 Building systems – installer qualifications (plumbing systems)

Reg. (UE) 305/2011 (CPR) Construction Products Regulation – CE marking for piping products

D.M. 37/2008 Building systems – installer qualifications and requirements

D.Lgs. 192/2005 e s.m.i. Energy performance of buildings

D.Lgs. 81/2008 Consolidated Workplace Safety Act

1.5 SUBMITTALS

A. Drainage layout drawings: plans and isometrics showing all drainage piping; sizes, slopes, cleanouts, vents, traps, and termination points; coordinated with structural and architectural drawings.

B. Product data: pipe and fitting manufacturers' data sheets; CE marking and Declaration of Performance per CPR; material standard compliance (EN 877 / EN 1329 / EN 1451 / EN 1453 / EN 12200).

C. Hydrostatic test plan: plan for water/air testing per ICC IPC 312 and UNI EN 1610.

D. Condensate route drawing: drawing showing the route of every HVAC equipment condensate line from drain pan outlet, through trap, to indirect-waste termination; trap geometry detail.

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1.6 QUALITY ASSURANCE

A. Installer: licensed plumbing contractor per D.M. 37/2008 (impianti idrici e sanitari, lett. d); minimum 5 years' experience on comparable projects.

B. Pipe and fittings: CE marked per CPR (Reg. UE 305/2011); DoP submitted at procurement.

C. Codes governing installation: ICC IPC 2021 is the primary installation code for this project. UNI EN 12056 (inside buildings) and UNI EN 752 (outside buildings) apply concurrently. D.Lgs. 152/2006 governs the quality of any wastewater discharged off-site.

D. No cross-connection between potable water and drainage; backflow protection per Section 232116;

air-gap separation per ICC IPC 802.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Deliver pipes and fittings in manufacturer's original packaging; protect ends with caps.

B. Store horizontally on level supports; protect from UV (PVC/PP); do not stack above manufacturer's limit.

C. Inspect on delivery for damage, ovalisation, or fitting deformation; reject non-conforming items.

1.8 WARRANTY

A. All drainage piping and fittings: 5 years from Substantial Completion.

B. HVAC condensate lift pumps: 1 year.

PART 2 – PRODUCTS

2.1 PIPE MATERIALS — INSIDE BUILDING

A. Cast iron (SML — soil, manhole, lead-free) per EN 877: preferred for vertical stacks in multi-storey buildings and where acoustic performance is required; centrifugal cast or sand cast; with EPDM gaskets and stainless-steel clamps; ≥ 1.5 mm internal epoxy lining for chemical resistance.

1. Diameter range: DN 50 – DN 300

2. Use: vertical waste/soil stacks in occupied buildings (sound absorption), and any application where higher fire performance (A1 non-combustible per EN 13501-1) is required

B. Polypropylene (PP) per EN 1451-1: standard for in-building waste and vent piping where acoustic performance is not the principal criterion; mineral-reinforced PP for sound-attenuating ranges; socket fittings with integrated EPDM lip seal.

1. Diameter range: DN 32 – DN 160

2. Temperature: continuous 90 °C, short-burst 95 °C — suitable for kitchen and dishwasher waste

3. Fire class: B-s1,d0 minimum per EN 13501-1; A2-s1,d0 for sound-rated/fire-rated branches

C. PVC-U per EN 1329-1: acceptable for non-acoustic in-building waste piping, condensate lines, and laboratory waste; socket joints with elastomeric seal or solvent cement; do not use above 60 °C.

1. Diameter range: DN 32 – DN 160

2. Fire class: B-s1,d0 minimum; not used where A2 required

D. Copper per EN 1057 (for condensate only, optional): half-hard tube acceptable for short condensate runs where corrosion resistance and small bore are advantageous (e.g., from FCU drain pan to nearest trap).

2.2 PIPE MATERIALS — OUTSIDE BUILDING (BURIED)

A. Vitrified clay per EN 295: preferred for buried gravity sewer in commercial projects; sulphate-resistant;

long life; lockable spigot-socket joints with elastomeric seal.

B. Structured-wall PVC-U per EN 1453-1 or HDPE per EN 12666-1: acceptable for buried sewer lines;

minimum SN 8 ring stiffness (or as required by burial depth and traffic load); EN 1610 installation.

C. Reinforced concrete pipe per EN 1916: for large-diameter (DN ≥ 400) buried sewer lines or where traffic loading and durability so require.

D. Cast iron per EN 877 (buried): acceptable for buried sections immediately exiting the building, transitioning to alternative material at the first inspection chamber.

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2.3 HVAC CONDENSATE DRAIN PIPING — DEDICATED

A. Code reference: ICC IPC Section 314 (Condensate Disposal). All HVAC condensate piping shall conform to IPC 314 sizing, slope, material, and termination requirements.

B. Material — preferred: PVC-U per EN 1329-1 (Schedule 40 or equivalent wall) or polypropylene (PP) per EN 1451-1; copper EN 1057 acceptable; galvanised steel is NOT recommended for condensate (mild acidity attacks zinc coating).

C. Minimum size per ICC IPC 314.2.3 (based on cooling-equipment nominal capacity, USRT = US refrigeration tons; 1 USRT = 3.517 kW):

1. Equipment ≤ 20 USRT (≤ 70 kW): minimum DN 20 (¾")

2. Equipment 21–40 USRT (74–141 kW): minimum DN 25 (1")

3. Equipment 41–90 USRT (144–317 kW): minimum DN 32 (1¼")

4. Equipment 91–125 USRT (320–440 kW): minimum DN 40 (1½")

5. Equipment 126–250 USRT (443–880 kW): minimum DN 50 (2")

D. Minimum slope: 1% (10 mm per metre) toward indirect-waste termination per ICC IPC 314.2.2; never level or back-slope.

E. Trap geometry — mandatory: P-trap or U-trap at each drain-pan outlet, with trap depth (water seal) at least equal to the negative static pressure (mm w.g.) the fan develops downstream of the cooling coil + 25 mm safety margin; this prevents the fan suction from holding water in the pan (drain-pan flooding) on draw-through AHU configurations. No exception — every drain-pan outlet has its own trap.

F. Vent (where required by IPC 314.2.5): open vent (air-admittance valve or open pipe to atmosphere) upstream of the trap where condensate-line static head could break the trap seal.

G. Termination — indirect waste per ICC IPC 802: condensate pipe shall terminate at an air gap above a tundish, floor drain, mop-sink, hub drain, or approved indirect-waste receptor. Direct connection to sanitary drainage is NOT permitted.

H. Insulation: all condensate lines passing through occupied spaces shall be insulated against surface condensation (sweating) per Section 230716 — minimum 13 mm FEF closed-cell elastomeric foam, vapour-tight at all joints.

I. Cleanout / rod-out access: provide cleanout tee at the start of each horizontal condensate run, at every change of direction > 45°, and at maximum 15 m intervals; cleanout caps accessible without dismantling adjacent insulation.

2.4 CONDENSATE LIFT PUMPS (WHERE GRAVITY DRAINAGE IS NOT FEASIBLE)

A. Application per ICC IPC 314.2.4: where the drain-pan outlet elevation does not permit gravity flow to an indirect-waste receptor with the minimum 1% slope, install a condensate lift pump.

B. Type: factory-assembled lift pump unit comprising tank (≥ 0.5 L), float switch, centrifugal or peristaltic pump (≥ 6 L/h at 3 m discharge head), check valve, high-water alarm contacts.

C. Materials: ABS or polycarbonate tank; PP impeller; FKM seal compatible with mild-acid condensate;

brass or stainless discharge connection.

D. Electrical: 230 VAC 50 Hz fused supply; volt-free high-water alarm contact wired to BMS via Section 230900; pump fault contact wired to BMS.

E. Safety interlock: high-water level shall interrupt the cooling-coil control loop (close chilled water valve or stop heat-pump compressor) preventing further condensate generation until alarm clears. Wire interlock through Section 230900 DDC.

F. Discharge pipe: soft copper or flexible PE tube; minimum DN 8 (5/16"); rises vertically to maximum 3 m, then to gravity drain with continuous slope; terminate at indirect waste per Article 2.3.

2.5 TRAPS, CLEANOUTS, AND VENTS

A. Traps: every plumbing fixture and floor drain provided with a P-trap (preferred), S-trap or bottle trap as appropriate; trap seal depth 50–100 mm; trap material to match upstream piping.

B. Cleanouts (ICC IPC 708):

1. Every horizontal branch ≥ DN 75: cleanout at upstream terminus

2. Every change of direction > 45°

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3. Maximum 30 m intervals on straight runs ≤ DN 150; 22.5 m for DN > 150 (ICC IPC 708.1.5)

4. Every base of soil/waste stack

5. At entrance of building drain to building (within 1.5 m of the wall penetration)

C. Vents (ICC IPC Chapter 9): size and arrange vent piping to limit pressure deviation in any plumbing fixture trap to ±25 mm water column; main vent through-roof termination minimum DN 75; cap with rodent screen.

D. Air-admittance valves (AAV): acceptable per ICC IPC 917 where through-roof venting is impractical (e.g., island fixtures, retrofit); approved AAV per ASSE 1051; do not use as substitute for primary system vent.

2.6 FLOOR DRAINS AND TUNDISHES

A. Floor drains: stainless steel AISI 304 body and grating (AISI 316 in coastal/swimming-pool areas); load class K3 (300 kN) per EN 1253-1 for plant rooms; integral P-trap with self-priming feature where exposed to evaporation.

B. Trap primer: install trap primer line on floor drains in mechanical rooms and other areas subject to evaporation; supply from potable water with backflow preventer.

C. Tundishes / hub drains for HVAC condensate termination: stainless steel or PP-with-elastomeric-seal tundish with visible air gap, sized for combined condensate and safety-valve discharge flows.

2.7 SUMPS AND LIFT STATIONS (WHERE REQUIRED)

A. Sewage ejector / lift station: factory-packaged duplex pump unit in cast-iron or HDPE chamber;

alternate-duty pumps; high-water alarm; vent to atmosphere; per ICC IPC Section 712.

B. Storm-water sump pump (where applicable): submersible pumps with float control; discharge to building storm-water system; do not connect storm sump discharge to sanitary system.

PART 3 – EXECUTION

3.1 EXAMINATION

A. Verify structural openings, sleeves, and penetrations are correctly positioned and sized for drainage piping; report discrepancies before commencing installation.

B. Confirm location of building sewer connection, invert level, and minimum cover with site survey before commencing buried drainage works.

C. Verify condensate drain elevation at each HVAC equipment outlet permits gravity drainage with required slope; identify locations requiring lift pumps before equipment installation.

3.2 INSTALLATION — IN-BUILDING DRAINAGE

A. Install all drainage piping per ICC IPC Chapter 7 and UNI EN 12056-5; coordinate with structural and architectural penetrations.

B. Slope (ICC IPC 704.1):

1. Building drain and horizontal branches DN ≤ 80: minimum 2% (20 mm/m)

2. Building drain DN 90 – DN 150: minimum 1% (10 mm/m)

3. Building drain DN > 150: minimum 0.8% per ICC IPC Table 704.1; verify per local authority

4. Condensate drain: minimum 1% per ICC IPC 314.2.2

C. Joints: elastomeric-seal socket joints (preferred); solvent-cemented joints for PVC-U where elevated temperatures and chemical content allow; mechanical clamp couplings for cast iron (EN 877); never mix jointing methods within a single run.

D. Hangers and supports: size and space per Section 230529 and manufacturer's data; cast-iron DN 100: maximum 2.0 m horizontal spacing; PVC-U DN 100: maximum 1.0 m horizontal spacing; sound-attenuating clamps required on vertical stacks within occupied spaces.

E. Penetrations: sleeve all drainage pipes through walls, floors, and slabs; fire-stop per Section 078413 at fire-rated barriers; acoustic seal at acoustic-rated barriers; flexible coupling at structural movement joints.

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F. Cleanouts (ICC IPC 708): install at all locations specified in Article 2.5; orient access cap toward unobstructed working space; cap with brass plug; thread-lock not permitted.

G. Vent piping: rise to roof penetration at minimum 1:50 slope; terminate not less than 150 mm above roof line and not less than 3 m horizontally from openable windows / air intakes (ICC IPC 904).

3.3 INSTALLATION — HVAC CONDENSATE DRAIN

A. Connect to drain-pan outlet of each FCU, AHU, heat pump, and dehumidifier per equipment manufacturer's instructions.

B. Trap fabrication: P-trap or U-trap immediately at drain-pan outlet; height of trap seal = fan negative static pressure (mm w.g.) + 25 mm; document trap depth in commissioning record.

C. Slope: continuous 1% minimum (10 mm/m) toward indirect-waste termination; no upward sections in gravity portion.

D. Indirect waste termination (ICC IPC 802): terminate at tundish, floor drain, hub drain, or mop-sink with visible air gap ≥ 2 × pipe diameter (minimum 25 mm). COR or Owner shall be able to verify air gap during inspection.

E. Insulation: apply 13 mm FEF closed-cell foam over entire condensate run within insulated/occupied spaces; vapour-tight at all joints; do not leave any portion of cold condensate pipe uninsulated within finished ceiling voids.

F. Cleanouts: at start of run, at every change of direction > 45°, every 15 m on straight runs.

G. No connection of condensate drain to roof gutter, rainwater leader, or sanitary stack without air-gapped intermediate receptor.

3.4 INSTALLATION — BURIED SEWER

A. Install per UNI EN 1610 and ICC IPC Chapter 7; minimum cover 800 mm in landscape, 1000 mm in traffic-loaded areas.

B. Bedding: 150 mm compacted granular fill (sand or 4/8 mm gravel) below pipe; haunching and surround to spring line; selected excavated material as backfill above; warning tape at 300 mm above pipe.

C. Slope: minimum 1% (10 mm/m) for DN ≤ 200; 0.5% acceptable for DN > 200 per local authority.

D. Inspection chambers (manholes): at every change of direction, junction, or invert change, and at maximum 30 m intervals; sizes per UNI EN 476.

E. Connection to public sewer: per local utility authority's approval and connection specification;

coordinate elevation and any required backwater valve.

3.5 TESTING

A. Sanitary drainage water test (ICC IPC 312.2): plug downstream end; fill to overflow at highest point or apply 3 m water column at lowest point; maintain ≥ 15 minutes; no visible leakage permitted.

B. Air test (ICC IPC 312.3): alternative to water test; pressurise system to 35 kPa (5 psi); maintain ≥ 15 minutes; pressure drop ≤ 7 kPa permitted.

C. Buried sewer joint test (UNI EN 1610): water-fill test or air-pressure test per EN 1610; document each manhole-to-manhole section result before backfill closure.

D. Condensate drain test: pour 2 L of clean water into each drain pan; verify free flow to indirect-waste termination without backup or overflow; verify trap holds water seal after fan shutdown.

E. Lift pump test: simulate high-water condition with float manually raised; verify pump operation, discharge, alarm signal to BMS, and cooling-coil interlock shut-off.

F. Submit signed test reports for all drainage works before concealment by ceilings, walls, or backfill.

3.6 COMMISSIONING

A. Operate each HVAC cooling unit for minimum 1 hour at design conditions; verify continuous condensate flow at indirect-waste termination; verify trap retains water seal; record observations.

B. Verify lift-pump high-water alarm transmits to BMS supervisor; verify cooling-coil shut-off interlock disables cooling on high-water signal.

C. Photographically document each air-gap termination for the project record.

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3.7 IDENTIFICATION

A. Label all drainage piping per Section 230553:

1. Sanitary waste: brown

2. Storm/rainwater: blue with white stripe

3. HVAC condensate: blue (cold-water family) with 'CONDENSATE' text label every 5 m and at each change of direction

B. Tag lift pumps, sumps, and main cleanouts with stainless tag showing function and reference number.

END OF SECTION 221316

METERS AND GAUGES FOR HVAC PIPING SECTION 230519

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SECTION 230519

METERS AND GAUGES FOR HVAC PIPING

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PART 1 – GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract apply to this Section.

B. Related Sections:

1. Section 230523 – General-Duty Valves for HVAC Piping

2. Section 232113 – Hydronic Piping

3. Section 232116 – Hydronic Specialties

4. Section 230900 – Instrumentation and Controls for HVAC

5. Section 232123 – Hydronic Pumps

1.2 SUMMARY

A. Scope: Furnish and install all thermometers, pressure gauges, flow meters, heat meters, and related instrumentation for HVAC hydronic systems as shown on drawings and as specified herein.

B. Included instruments:

1. Dial thermometers – bimetal, gas-actuated, and dial types

2. Pressure gauges – Bourdon tube, diaphragm

3. Differential pressure gauges and indicators

4. Flow meters – electromagnetic, ultrasonic, variable-area

5. Heat meters (energy meters) per MID 2014/32/UE

6. Test points and pressure/temperature test valves

7. Gauge cocks and gauge accessories

C. Design working conditions: max 120°C, max 16 bar.

1.3 DEFINITIONS

A. Thermometer: instrument for measuring fluid temperature; types include bimetal, gas-actuated, and resistance (Pt100).

B. Pressure gauge: mechanical instrument converting fluid pressure into pointer rotation on a calibrated dial (Bourdon tube or diaphragm element).

C. Differential pressure gauge: instrument measuring pressure difference between two points; used across coils, strainers, and control valves.

D. Heat meter: assembly of flow sensor + paired temperature sensors + calculator, integrating thermal energy (kWh); subject to MID directive.

E. Test point (Schrader valve): self-sealing valve accepting portable meter probes without system drain-down.

EN 837-1 Bourdon tube pressure gauges – dimensions, metrology, requirements

EN 837-3 Capsule and diaphragm pressure gauges

EN 13190 Dial thermometers for industrial use

EN ISO 5167-1 Measurement of fluid flow – orifice plates, nozzles, venturi tubes

EN 1434-1 Heat meters – general requirements

EN 1434-2 Heat meters – constructional requirements

EN 1434-4 Heat meters – pattern approval tests

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MID 2014/32/UE Measuring Instruments Directive – heat meters

EN 60529 (CEI 20-37) Degrees of protection (IP rating)

EN 61000-4-2/-4/-6 EMC immunity requirements

OIML R 75 Heat meters – OIML recommendation

UNI 9196 Plumbing systems – flow meters and gauges

D.M. 37/2008 Building systems – installer qualifications and requirements

D.Lgs. 192/2005 e s.m.i. Energy performance of buildings

D.Lgs. 81/2008 Consolidated Workplace Safety Act

1.5 SUBMITTALS

A. Product Data: manufacturer's data sheets showing accuracy class, pressure/temperature rating, materials, dimensions, and connection sizes for all instruments.

B. Calibration Certificates: factory calibration certificates for heat meters and flow meters; accuracy traceable to national metrology standards.

C. MID Declaration: conformity declaration per Directive 2014/32/UE for all heat meters.

D. Shop Drawings: piping connection details, tapping locations, thermowell schedules.

E. Operation and Maintenance Manuals: including re-calibration intervals and procedures.

1.6 QUALITY ASSURANCE

A. All pressure gauges: accuracy class 1.6 minimum per EN 837-1.

B. All thermometers: accuracy ±1°C or better across the stated range.

C. All heat meters: accuracy class 2 minimum per EN 1434-1 and MID; valid type approval certificate required.

D. D.M. 37/2008: installations shall be carried out by licensed firms; declaration of conformity filed per art.

7.

E. Flow meters shall be installed with straight pipe runs as required by manufacturer; minimum 5D upstream, 2D downstream.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Deliver instruments in manufacturer's original packaging with calibration certificates.

B. Protect gauges from mechanical shock; store in dry, temperature-controlled environment.

C. Do not remove protective caps until final installation.

1.8 WARRANTY

A. Standard warranty: 1 year from date of Substantial Completion.

B. Heat meters: 5 years product warranty. Note: mandatory periodic metrological re-verification per D.M.

93/2017 (Italian implementation of MID) is required at 8-year intervals for heat meters; this is a regulatory requirement independent of the product warranty and shall be scheduled by the Owner's facility manager.

PART 2 – PRODUCTS

2.1…