MECHANICALDIVISION 15 - MECHANICAL

DIVISION 15MECHANICAL

SPECIFICATION WRITNGSARBU O4

SARANG, WENDELL D. TALLER, ZHAIRA MAE BSA 3A REPORTER SECTION

Definition:MECHANICAL EQUIPMENTThe kinds of equipment that are classified under the headings of heating, air conditioning, plumbing, electrical work and gasfitting.MECHANICAL ROOMSA room or space in a building dedicated to the mechanical equipment and its associated electrical equipment as opposed to rooms intended for human occupancy or storage.MECHANICAL ROOMS TYPICALLY HOUSE THE FOLLOWING EQUIPMENT: Air handlers Boilers Chillers Elevator machineryOther HVAC equipment: Heat exchangers Water heater and tanks Water pumps Main distribution piping and valves Sprinkler distribution piping and pumps Back-up electrical generatorsHVACHVAC(heating,ventilating, andair conditioning; also heating, ventilation, and air conditioning)[1]is the technology of indoor and vehicular environmental comfort. Its goal is to providethermal comfortand acceptableindoor air quality.

PSVAREThe Philippine Society of Ventilating, Air Conditioning and Refrigerating Engineers (PSVARE) along with Philippine Society of Mechanical Engineers (PSME) govern on the codes and standards for HVAC / MVAC in the Philippines.AIRCONDITIONERAir conditioning(often referred to asA/C,ACoraircon) is the process of altering the properties ofair(primarilytemperatureandhumidity) to more comfortable conditions, typically with the aim of distributing the conditioned air to an occupied space to improvethermal comfortandindoor air quality.USUAL AIR CONDITIONER TYPE FOR RESIDENTIAL WINDOW UNIT PORTABLE UNITEXAMPLE:2.5HP, Anti-corrosive Gold Fin Condenser, Energy Saving (High EER), Nano Gold Filter, Air Deflection Control, Auto SwingKey Features: Anti-Corrosive Gold Fin Energy Saving Mode Nano Gold Filter Air Deflection Control Auto Swing

DIVISION 15 - MECHANICALSECTION 15100 PLUMBING WORKSI. GENERAL1. General Description - The work to be done under this Division of the specifications of the fabrication, complete in all details, of the Plumbing Works, at the subject premises and all the materials incidental to the proper completion of the installation, except those portions of the work which are expressly stated to be done by others. All works shall be in accordance with the governing Codes and Regulations and with the specifications, except where same shall conflict with such Codes, etc. which, later shall then govern. The requirements in regards to materials and workmanship specify the required standards for the furnishings of all labor, materials and appliances necessary for the completion of the work specified herein and indicated in the drawings.2. Drawings Specification2.1 The contract drawing and specifications are complementary to each other and any labor an materials called for by either, whether or not called for by both, if necessary for the successful operation of nay of the particular type of equipment furnished and installed without additional cost to the Owner.2.2 All dimensions location of fixtures, equipment floor and roof drains, risers and pipe chase shall be verified on the architectural drawings and manufacturer's catalogue.3. Intent - It is not intended that the drawings shall show every pipe, fitting, valve and appliance. All such items show whether specifically mentioned or not, or indicated on the drawings, shall be furnished and installed if necessary to complete the system in accordance with the best practice of the plumbing trade and to the satisfaction of the Architect, the Engineer and the Owner.4. Site Investigation - The Contractor is required to visit the site and to ascertain himself as to the local conditions and facilities that may affect his work. He will be deemed to have done this before preparing his proposal and any subsequent claims on the ground of inadequate or inaccurate information will not be entertained.5. Shop Drawing-The Contractor shall submit to the ARCHITECT and the Engineer, for approval, four (4) copies of all shop drawings of details and connection not shown on the drawings or deviation thereof but required for the work. The Contractor shall certify that the drawings have been checked for dimensions, materials, erection details and conform to the intent of the drawings and specifications.6. Record Drawings6.1 The Contractor shall during the progress of work, keep a record of the actual installation from that shown on the contract drawings.6.2 Upon completion of the work, the Contractor shall submit four (4) copies of as-built drawings indicating the work as actually and finally installed.7. Guarantee - The Contractor shall guarantee that the plumbing system is free form all defective workmanship and materials and will remain so for a period of one (1) year from the date of acceptance of the work. Any defects, appearing within the aforesaid period shall be remedied by the Contractor at his own expense.8. Permits - The Contractor shall be responsible for securing all the required construction and operation permits and pay all necessary fees thereof. Copies of inspections shall be submitted to the Owner.9. Codes and Standards - The work under this contract is to be installed with reference to the latest requirements of the following:9.1 PHILIPPINE NATIONAL BUILDING CODE9.2 REGULATION OF LOCAL WATERWORKS & SEWERAGE AUTHORITY9.3 UNIFORM PLUMBING CODE (UPC)9.4 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)9.5 AMERICAN NATIONAL STANDARD INSTITUTE (ANSI)9.6 AMERICAN WATER WORKS ASSOCIATION (AWWA)9.7 NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)9.8 UNDERWRITER'S LABORATORIES (UL)9.9 FACTORY MUTUAL (FM)9.10 NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)II. MATERIALS1. Quality Assurance - All materials shall be used shall be new and shall conform with the reference codes and standards. Use or materials shall further be governed by other requirements, imposed on other sections of these specifications. Materials shall be subject to test necessary their fitness if so requires2. Alternate Materials - Use of any material, not specified in these specifications may be allowed provided such alternate has been approved by the Architect and Engineer and provided further that a test, if required , shall be done by an approved agency in accordance with the generally accepted standards.3. Identification of Materials - Each length of pipe, fittings, traps, fixtures and devise used in the plumbing systems shall be case, stamped or indelibly marked on it's manufacture trademark or name, the wight, type and classes or product when so required by the standard mentioned above.4. Polyvinyl Chloride Piping4.1 Type - Polyvinyl chloride (PVC), ASTM D - 2729, schedule 404.2 Moldex blue or approved equal for all water line piping.4.3 Sanimold orange uPVC with exclusive O-ring or approved equal for all water lines and vents.4.4 Fittings - Polyvinyl chloride4.5 Pipe Sealant-PVC chloride4.6 75 mmO Sanimold Orange uPVC pipes or approved equal for all downspouts.5. Concrete Piping5.1 Type - Concrete Pipes, ASTM C - 785.2 Minimum wall thickness - Plain concrete for 250 mmO and smaller pipes; Reinforced concrete for 300 mmO and bigger pipes, class IV5.3 Joints - Male and female groove5.4 Pipe sealant - Cement grout5.5 Application - Exterior storm drain piping6. Galvanized Iron Piping6.1 Type - ERW, ASTM A - 120 or A -536.2 Minimum wall thickness - Schedule 406.3 Joints - Threaded joints for pipe sized 50mm and smaller; Welded or flanged joints for pipe sizes 65 mm and bigger.6.4 Fittings - Malleable iron ASTM A - 197 for threaded fittings and steel ASTM A - 126 for flanged fittings.6.5 Valves - Bronze, ASTM B - 62, 1035 Kpa for 50 mm and smaller; All iron, bronze fitted, 1035 Kpa for 65 mm and bigger.6.6 Pipe Sealant - Teflon tape for threaded joints and rubber gasket for flanged joints.6.7 Application - Main water piping and Fire protection piping.7. Acid Resistant Pipes - for all laboratory water pipes8. Pipe/Gutter Support8.1 Pipe support shall be fabricated with flat bar, round bar and angular bar of appropriate size.8.2 Anchorage of pipe support on concrete slab or beam shall be expansion shields or it shall be directly fasten to structural steel member as shown on details or as required.9. Pipe Sleeves9.1 Pipe sleeve shall be galvanized iron pipe, Sch. 409.2 Sleeve shall have minimum clearance of 25 mm around the pipe insulation, if any, and caulked with oakum and mastic sealant.EQUIPMENT1. Quality Assurance - All equipment to be used shall be new and shall conform with the reference codes and standards. The manufacturer shall provided representatives for start-up supervision.2. Operation & Maintenance Manual - The manufacturer shall provide four (4) copies of operation & maintenance manual, including spare parts list to the Owner.3. Fire Hose Cabinet3.1 Cabinet - Fire hose cabinet shall be flushed to the wall. Frame shall be gage 16 steel with white interior and red exterior enamel paint finish over primer. Door frame shall be aluminum.3.2 Unit shall consist of the following:One (1) - 40mm x 20 m single jacket hose with brass couplingOne (1) - 40 mm combination fog and solid stream nozzle brass finishOne (1) - Semi automatic rack, brass finish and hose nippleOne (1) - 40 mm angle valve, brass finish, 1200 KpaOne (1) - Spanned wrenchOne (1) - 4.5 Kg. Dry chemical ABC extinguisher. UL/FM listedOne (1) - Fire axe4. Fire Department Connections4.1 Type - Threaded type to match the local fire department requirement. Complete with caps and chains.4.2 Pressure Rating - 1200 Kpa4.3 Manufacturer - Similar to Elkhart model or approved equal4.4 Finish - Rough brass4.5 Uses and SizesSiamese Twin - 75 x 65x 65 mm female connectionFire hose valve - 65 mm male connectionINSTALLATION1. Workmanship1.1 The work throughout shall be executed in the best and most thorough manner to the satisfaction of the Architect and the Engineers, who will jointly interpret the meaning of the drawings and specifications and shall have power to reject any work and materials which in their judgment, are not in full accordance therewith.1.2 This Contractor shall assume unit responsibility and shall provide the services for a qualified Engineer to supervise the complete installation of equipment and systems and who shall be available for conducting the finial acceptance tests.1.3 All equipment shall be installed in accordance with the manufacturer's standard. Certificate of compliance by the manufacturer's representative shall be submitted to the Owner.2. Excavating, Pipe Laying and Packfilling2.1 Excavating Trenches for all underground pipe lines shall be excavated to the required depth and grades. Bell holes shall be provided so that the pipe shall rest on well tamped solid for its entire length.Where rock is encountered, excavation shall extend to depth 150 mm below the pipe bottom, and before pipe is laid, the space between the bottom of pipe shall be filled with approved filling materials.2.2 Pipe LayingPipes in trenches shall be laid true line and grade on a stable or suitably prepared foundation, each section of the pipe being bedded and bottom of the trench shaped to fit the lowest quadrant of the pipe circumference. Pipe shall not pass through columns, footings, beams of ribs, except where noted on the drawings.Slopes of all sewage and storm drainage pipings shall be maintained at 1% minimum unless otherwise noted or required.2.3 BackfillingAfter pipe lines have been tested, inspected and approved by the Architect and prior to backfilling, all forms and bracings shall be removed and the excavation shall be cleaned from trash and debris. Materials for backfilling shall consists of approved materials and shall be free of debris or big rocks.Backfill shall be placed in horizontal layers, properly moistened and compacted to an optimum density tat will prevent excessive settlement and shrinkage.3. Water Piping3.1 All piping shall be installed parallel to building line unless otherwisenoted.3.2 The piping shall be extended to all fixtures, outlets and equipment from the valve installed in each branch.3.3 The piping system shall be installed with a fall toward a main shut-off valve and drains. Ends of pipes to fixtures shall be capped with pipe extension of 30 cm long.3.4 All pipes embedded underground shall have at least two (2) coat of tar or carboline.3.5 All hot water piping shall be insulated except those embedded in concrete or otherwise noted.3.6 All water pipe connections to equipment shall be provided with gate valves and unions or flanges to provide access and maintenance.3.7 Provide dielectric union for joining pipes of different materials. Clean-outs and Traps4.1 Clean-outs - Clean-out shall be of the same size as the pipe. For pipes 100 mm and larger, use 100 mm clean-out.

4.2 Trap - Each fixture trap except those cast integral or in combination with fixtures in which the trap seal is readily accessible or if the trap is removable shall have an accessible brass trap screw of ample size. Floor, Wall and Ceiling Plates - Provide chromium plated metal plates of the same materials as the pipe for all exposed piping passes through floors, walls and ceilings.Supports, Sleeves and Hangers6.1 Fixture Support. All fixtures and equipment shall be supported and fastened in a safe and satisfactory manner.6.2 Pipe sleeves shall be installed and properly secured in place at all points where pipes pass through masonry or concrete, except unframed floors on earth.6.3 Pipe Hangers, Supports & InsertsHorizontal runs of pipe shall be hung with adjustable pipe hangers spaced not over 3.0 meters apart, except bell and spigot pipes which shall have hangers spaced not over 1.5 meters apart and located near the bell.Trapeze hangers may be used in lieu of separate hangers on pipes running parallel to and close to each other. Inserts shall be securely anchored and the anchor shall be properly slushed with mortar. Inserts shall be completely concealed when the fixtures are installed.Vertical pipe riser shall be supported at every floor unless additional supports are required.Provide isolation for pipe and hanger of different materials.Provide auxiliary structural steel members required for supporting and anchoring of pipes and accessories.7. Cleaning and Painting

7.1 All Exposed Metal SurfacesAll exposed metal surfaces shall be rid of grease, dirt or other foreign materials.All equipment, pipes, valves and fittings shall be cleaned of grease and sludge which may have accumulated. Any stoppage of discoloration or other damage to the parts of the building, its finish or furnishings due to the system shall be repaired by the Contractor.7.2 PaintingAll exterior surfaces of pipings to be installed in or through concrete floor fill or the tile floors and underground shall be given one coat of acid resisting paint having a bituminous base.Pipe hangers supports and all other iron work in concealed spaces shall be thoroughly cleaned and painted with one coat of asphalt varnished.All pipings shall be painted with two coats of enamel finish paints after cleaning. Color code shall be submitted to the Engineer and Architect for approval prior to painting. Directional markers shall be spaced no more than 5.0 m apart.8. Testing and Disinfection8.1 TestingWater line - Upon completion of the roughing in and before setting fixtures, the entire water piping system shall be tested at a hydrostatic pressure one and one-half times the expected pressure in the system when in operation or 1034 Kpa minimum, for at least 2 hours.Others - Apply the water to the system either in its entirety or in sections after rough piping has been installed. If applied to the entire system, all openings in the piping shall be tightly closed, except the highest opening, and the system filled with water to the point of overflow. Keep the water in the system or in the portion under test for at least thirty (30) minutes during which time there shall be no drop greater than 100 mm.Where portion of the piping system is to be concealed before completion, this portion shall be tested separately in a manner similar to that described for the entire system.

8.2 DisinfectionThe entire system shall be thoroughly flushed and disinfected with chloride before it is placed in operation.Chlorinating materials shall be introduced into the waterlines in a manner approved by the Architect and the Engineer.The chlorine dosage shall be such as to provide no less than fifty (50) parts per million of available chlorine, following a contact period of not less than sixteen (16) hours, the heavily chlorinated water shall be flushed from the system with clean water until the residual chlorine content is no greater two tenth ppm.* * * END OF SECTION * * *SECTION 15200 HVAC1.0 GENERAL

1.1 Related UBC Guidelines

.1 Section 15001 Mechanical General Requirements .2 Section 15002 Plumbing General Requirements .3 Section 15004 District Hot Water Heating System .4 Section 17100 Cable Infrastructure Overview, sub sections 1.3, 1.4, 2.5, 2.12 .5 Section 17110 Communication Rooms, sub section 1.3

1.2 Coordination Requirements

.1 UBC Building Operations - Technical Services .2 UBC Utilities .3 UBC Information Technology (IT)

1.3 Description

.1 UBC Technical Guidelines for HVAC design specification details.

2.0 MATERIALS AND DESIGN STANDARDS

2.1 Performance Standards

.1 The HVAC design shall comply with the following: .1 BC Building Code. .2 UBC Technical Guidelines.

2.2 General Requirements Preferred Systems and Design Approaches .1 Use air systems in combination with perimeter radiation. Perimeter radiation shall be capable of being operated independent of the air system (see Section 15901). Perimeter radiation or radiant ceiling panels must be capable of supplying building skin loss.

.2 Avoid all air systems.

.3 See Section 15901BMS General Guidelines for additional control system requirements.

.4 Zone mechanical systems by intended occupancy, separate interior and exterior zones.

.5 Provided reheat coils in each interior zone.

.6 All air handling units shall have heating or preheat coils even if building load indicate that one is not required.

.7 Proposed fan volume control schemes based on building static pressure must have prior approval from Building Operations.

.8 Do not specify variable pitch in motion fans.

.9 Design all air handling units with minimum 15% spare volumetric and static pressure capacity.

.10 Air filters provided for use in HVAC systems adhere to the following nominal trade size: Pre Filters 24 x 24 x 2 MERV 8 12 x 24 x 2 MERV 8 Standard Cartridge Filters 24 x 24 x 2 MERV 13 12 x 24 x 2 MERV 13 Box Filters 24 x 24 x 12 MERV 13 12 x 24 x 12 MERV 13 .1 Bag Filters will not be considered an acceptable system.

.11 Air filters provided for use in Fan Coil Units adhere to the following:

.1 Where practicable, cartridge filters for use in Fan Coil Units should be a nominal trade size such as 12 x 24 x 1 and have an efficiency rating of MERV 8.

.12 Buildings with no air conditioning shall have cooling circulation air increased by minimum of 25% or have sufficient volume to meet WCB requirements with respect to maximum space temperature, whichever is greater. Consider additional costs of construction and compare to cost of adding and operating an air conditioning plant.

.13 Radiant heating panels shall not face windows.

.14 Provide separate exhaust to all photocopier rooms or areas. Exhaust to outdoors.

.15 Ensure sufficient air mixing within the occupied space on VAV systems under all operating conditions.

.16 VAV systems shall have reheat coils at all VAV boxes.

.17 Window mounted air conditioners and exhaust fans are not acceptable, except for temporary buildings.

.18 All exhaust ductwork within the building shall be under negative pressure.

.19 Specify separate ventilation systems for Mechanical Rooms.

.20 Do not specify sidewall supply registers for classroom applications.

.21 Controls specifications shall meet UBC guidelines. Overall responsibility of Mechanical system design and necessary controls shall be Mechanical Consultants responsibility.

.22 Each floor or Zone within floor space is to be provided with CO2 sensors connected to the building BMS.

.23 Provide minimum of 10 air changes per hour for all laboratories. Alternate proposals to be reviewed with UBC Technical Services and approved by UBS Risk Management Services/Health Safety and Environment.

.24 Return and supply fans requiring volumetric tracking shall have same type devices for volume control, i.e. inlet dampers must be only used with inlet dampers, VFDs with VFDs etc.

.25 If fume hood exhaust systems are located in mechanical penthouses they shall be located in separate self contained area within the Mechanical Penthouse.

.26 Where fume hood fans are contained within mechanical penthouses, pressurize the penthouse with supply air from the building from a safe outside source to avoid the possibility of recirculation exhaust air into the service space and to provide flushing of contaminants if a minor duct leak occurs.

2.3 Air Outlets and Inlets

.1 Do not specify balancing dampers at the face of air outlets and inlets. Locate balancing dampers sufficient distance into the ductwork to maintain acceptable sound level within the conditioned space. (NC 30 35 or less)

.2 Co-ordinate with architectural discipline.

2.4 Outside Air Intake Louvers

.1 Locate outside air intake louvers as far away as practical from all sources of contamination; avoid locating intakes at loading docks, fume hood exhausts, generator exhausts. Outside air intake louvers are not to be located on roof tops where fume hood exhausts are located.

.2 Locate outside air intake louvers as high as possible above grade and shall not be at grade level.

.3 Where below grade intakes are unavoidable install bird/debris screen on outside of the louvers.

2.5 Tests

.1 Insulate or conceal work only after testing and approval by UBC Inspector.

.2 Conduct tests in presence of UBC Inspector.

.3 Piping .1 General: maintain test pressure without loss for 48hr unless otherwise specified.

.2 Hydraulically test steam and hydronic piping systems at 1-1/2 times system operating pressure or minimum 1300 kPa, whichever is greater.

.3 Test natural gas systems to latest edition of CAN-B149.1 and requirements of authorities having jurisdiction.

.4 Test fuel oil systems to latest edition of CSA B139, CSA B139S1 and authorities having jurisdiction.

.5 Test drainage, waste and vent piping to B.C. Building Code and UBC Plumbing Inspector.

.6 Test domestic hot, cold and recirculation water piping at 1-1/2 times system operating pressure or minimum 1000 kPa, whichever is greater.

.7 Provide x-ray testing of a portion of the welds in steam piping.

2.6 Painting

.1 Refer to Section 09900, Painting.

.2 Specify at least one coat of corrosion resistant primer paint to ferrous supports and site fabricated work.

.3 Specify painting of all plumbing and mechanical equipment. Color shall be pewter grey unless otherwise specified. ***END OF SECTION***