Mechanical Code Flashcards by Mark Raven Florentino

To establish minimum requirements of protection to public safety and health thru mechanical engineering, indoor air quality thru adequate air conditioning and ventilation; carbon dioxide mitigation thru energy conservation and renewable energy; to preserve life and protect property from damage and other hazards attributed to fire and smoke; and provide safety to firefighters and emergency responders during emergency operation.

To regulate and control the design, construction, installation, quality of materials, location, operation, and maintenance or use of heating, ventilating, cooling, and refrigeration systems; incinerators; and other miscellaneous heat producing mechanical equipment and systems within the jurisdiction of R.A 8495 or known as the Mechanical Engineering Act of 1998.

Mechanical Code

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known as the Mechanical Engineering Act of 1998.

R.A 8495

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Permits required for Mechanical

No mechanical system regulated by this code shall be installed, altered, repaired, replaced, or remodelled unless a separate mechanical permit for each separate building or structure has first been obtained and except as permitted in Section 111.1.

Applicants for permits shall have been licensed as contractor by the Philippine Contractors Accreditation Board (PCAB) of the Construction Industry Authority of the Philippines (CIAP) and shall have duly complied with the requirements Republic Act (R.A) 4566 or known as the Contractors License Law

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Any replacement of mechanical equipment shall be allowed to operate after installation provided a request for inspection is made within forty-eight hours after completion of replacement.

Operation of Mechanical Equipment.

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Refrigeration equipment regulated by this code shall be tested and approved as required by Section 1223.0 of this code. Steam and hot water boilers and all piping shall be tested and approved as required by Sections 1007.0 and 1001.2.8 of this Code.

-All cold water, hot water, drainage, vents and storm drainage piping shall be tested and approved as required by where applicable by SecNon 1409.4, 1512.0 and 1709.2, fuel gas piping shall be tested and approved as required by Section 1814.0 of this Code

Testing of Equipment.

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The person doing the work authorized by a permit shall notify the authority having jurisdiction that such work is ready for inspection. The request for inspection must be filed not less than one (1) week before the inspection date.

-The person requesting inspections shall be required by this code to provide access to and means for inspection of such work.

Inspection Requests

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The authority having jurisdiction shall be allowed to make other inspections of mechanical work to ascertain compliance with the provisions of this code and other laws that are enforced by the code enforcement agency.

Other Authorized Inspections

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Any requested Incomplete inspection or when the required corrections have not been made, the authority having jurisdiction shall be allowed to assess a re-inspection fee.

Re-inspection fees shall not be required the first time a job is rejected or for failure to comply with the requirements of this code for the first time.
The fee shall be paid after completing a form, furnished for this purpose. The authority having jurisdiction shall adopt a fee schedule for this purpose.
No additional inspection of the work shall be performed until the required foes have been paid.

Re-Inspections.

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Air that has been treated to achieve a desired level of temperature, humidity, or cleanliness.

AIR, CONDITIONED

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Any tube or conduit for transmission of air, fumes, vapors, or dusts. This definition shall not include:
(1) A vent, vent connector, or chimney connector.
(2) Any tube or conduit wherein the pressure of the air exceeds one (1) pound per square inch (6.895 KPA).
(3) The air passages of listed self-contained systems.

DUCT

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Includes all ducts, duct fittings, plenums, and fans assembled to form a continuous passageway for the distribution of air.

DUCT SYSTEM

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A device used for reducing the sensible heat of air for cooling by the process of evaporation of water into an airstream.

EVAPORATIVE COOLER

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All of that equipment intended or installed for the purpose of environmental cooling by an evaporative cooler from which the conditioned air is distributed through ducts or plenums to the conditioned area.

EVAPORATIVE COOLING SYSTEM

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Includes all warm air furnaces, warm air heaters, combustion products vents, heating air distribution ducts and fans, and all steam and hot water piping, together with all control devices and accessories installed as part of, or in connection with, any environmental heating system or appliance regulated by this code.

HEATING EQUIPMENT

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A warm air heating plant consisting of a heat exchanger enclosed in a casing. from which the heated air is distributed through ducts to various rooms and areas. A heating system includes the outside air, return air and supply air system, and all accessory apparatus and equipment installed in connection therewith.

HEATING SYSTEM

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A refrigeration system that extracts heat from one/substance and transfers it to another portion of the same substance or to a second substance at a higher temperature for a beneficial purpose.

HEAT PUMP

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The refrigeration equipment forming a part of the refrigeration system, including, but not limited to, the following: compressors, condensers, liquid receivers, evaporators, and connecting piping.

MACHINERY

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An approved device that senses visible or invisible particles of combustion

SMOKE DETECTOR

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An interior space enclosed by walls or construction extending through one or more stories or basements that connects openings in successive floors, or floors and roof, to accommodate elevators, dumbwaiters, mechanical equipment, or similar devices to transmit light or ventilation air

SHAFT

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A listed. factory made vent pipe and vent fittings for conveying flue gases to the outside atmosphere.

VENT

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A factory made gas vent listed by a nationally recognized testing agency for venting listed or approved appliances equipped to burn only gas.

Type B Gas Vent

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A factory made gas vent listed by a nationally recognized testing agency for venting listed or approved gas fired vented wall furnaces.

Type BW Gas Vent

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Venting system consisting of listed vent piping and fittings for use with oil burning appliances listed for use with Type L or with listed gas appliances

Type LA Gas Vent

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An appliance designed primarily to supply hot water and equipped with automatic controls limiting water temperature to a maximum of 210°F (99°C).

WATER HEATER or HOT WATER HEATING BOILER

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Each enclosure shall be of reasonable height, and shall have at least a ________ clearance between the entire service access panel of the equipment and the wall of the enclosure

36 inch/900mm

Roof where equipment is to be installed shall be designed to be capable of supporting the _________.

Additional loads

Equipment shall be installed on a ____________ of the roof.

well drained surface

at least ________ between any part of the equipment and the edge of a roof or similar hazard

6ft

Condensate from air washers, air-cooling coils, fuel burning condensing appliances, and the overflow from evaporative coolers and similar equipment shall be collected and discharged to an approved plumbing fixture or disposal area. If discharged into the drainage system, drain using a indirect wastepipe.

Condensate Disposal

When a colling coil or unit is located in an above ceiling, attic or furred space where damage may result from condensate overflow, an additional watertight pan of corrosion resistant metal shall be installed beneath the cooling coil or unit top to catch the overflow condensate.

Condensate Control

Condensate waste pipes from air-cooling coils shall be sized in accordance with equipment capacity as follows:

Condensate Waste Sizing

Condensate drain lines from individual fuel burning and condensing appliances shall be sized according to the manufacturer’s recomendations

Fuel Burning Appliance Condensate Drains

are made up of two separable parts which are used to hold the machine parts together by means of threaded fastening such as bolt and nut.

Threaded Joints

two metal surfaces are connected using a filler metal called solder.

Soldered Joints

used for gas and high-pressure lines

Flared Joints

Iron, steel. brass and copper pipe shall be standard weight iron pipe size pipe

Iron Pipe Size

Plumbing systems shall be installed in a manner conforming to this code, applicable standards, and the manufacturer’s installation instructions.

Installation Practices

# SEC325 PROHIBITED FITTINGS AND PRACTICES No drainage or vent piping shall be drilled and tapped for the purpose of making connections No waste connection shall be made to a closet bend or stub of a water closet or similar fixture All valves, pipes, and fittings shall be installed in correct relationship to the direction of flow Drainage piping over operating and delivery rooms, nurseries, and other sensitive areas shall be kept to a minimum and shall not be exposed. Special precautions shall be taken to protect these areas from possible leakage.

SEC325 PROHIBITED FITTINGS AND PRACTICES

# Sec 327 Protection of Piping All piping passing under or through walls shall be protected from breakage. All piping passing through or under cinders or other corrosive materials shall be protected from external corrosion All piping in connection with a plumbing system shall be so installed that piping or connections will not be subject to undue strains or stresses. No plumbing piping shall be directly embedded in concrete or masonry. Pipings subject to corrosion, erosion, or mechanical damage shall be protected in an approved manner.

Sec 327 Protection of Piping

A closure device used to cover an opening into a duct, an enclosure, equipment, or an appurtenance.

ACCESS PANEL

An accessory or a subordinate part that enables the primary device to perform or improve its intended function.

APPURTENANCE

an object placed in or near an appliance to change the direction or retard the flow of air, air fuel mixtures, or flue gases.

BAFFLE PLATE

material subject to an increase in combustibility or flame spread rating beyond the limits established in the definition of Limited Combustible Material.

COMBUSTIBLE MATERIAL

an air intake device connected to a mechanical exhaust system for collecting and removing grease, vapors, fumes, smoke, steam, heat, or odors from commercial food heat processing equipment.

HOOD

a hood that has an outside air supply with air delivered below or within the hood. When makeup air is diffused directly into the exhaust within the hood cavity, it becomes a short-circuits hood.

COMPENSATING HOOD

the final portion o a duct or pipe where the product being conveyed is emptied or released from confinement; the termination point of the pip or duct.

DISCHARGE

the final or intended end portion of a duct system that is designed and functions to fulfill the obligations of the system in a satisfactory manner.

TERMINATION

Ducts conveying non-abrasives such as smoke, spray, mists, fogs, non- corrosive fumes and gases, light fine dusts, or powders.

Class 1

Ducts conveying moderately abrasive particulate in light concentrations, such as sawdust and grain dust, and buffing and polishing dust.

Class 2

Ducts conveying Class 2 materials in high concentrations and highly abrasive materials in low concentrations, such as manganese, steel chips, and coke.

Class 3

Ducts conveying highly abrasive material in high concentrations.

Class 4

Ducts conveying corrosives, such as acid vapors.

Class 5

Motors and fans shall be accessible for servicing and maintenance.

True

Air filters shall be listed units. Liquid adhesive coatings used on filters shall have a flash point of ____________ or higher, as determined by the Fire Code standards.

50°F (177°C)

Ducts used for domestic kitchen range ventilation shall be of metal and shall have smooth interior surfaces. Ducts for domestic range hoods shall only serve cooking appliances.

Domestic Range Vents

Listed grease filters, baffles, or other approved grease removal devices for use with commercial cooking equipment shall be provided. Listed grease filters shall be tested in accordance with UL 1046, Grease Filters for Exhaust Ducts. Mesh filters shall not be used.

Grease Removal Devices

Grease removal devices shall be protected from combustion gas outlets and from direct flame impingement occurring during normal operation of cooking appliances producing high flue gas temperatures, such as deep fat fryers or upright or high broilers (salamander broilers), where the distance between the grease removal device and the appliance flue outlet (heat source) is less than 18 inches (457mm).

Grease Removal Device Protection

Air ducts installed under a floor in a crawl space shall be installed so as to maintain a vertical clearance of ____________ for all portions of the duct that would obstruct access to any part of the crawl space.

18 inches

Metal ducts shall be installed with at least ________ separation from earth. Metal ducts when installed in or under a concrete slab shall be encased in at least ________ of concrete.

4 inches (102 mm) 2 inches (51 mm)

includes monitoring and overriding capability over smoke- control systems and equipment provided at designated location(s) within the building for the use of the fire department.

Fire fighters smoke-control station (FSCS)

A type of smoke-control system in which stair shafts are mechanically pressurized with outdoor air to keep smoke from contaminating them during a fire incident.

Pressurized Stair towers

The airborne solid and liquid particulates and gases evolved when a material undergoes pyrolysis or combustion, together with the quantity of air that is entrained or otherwise mixed into the mass

Smoke

A membrane, either vertical or horizontal, such as a wall, floor, or ceiling assembly, that is designed and constructed to restrict the movement of smoke.

Smoke Barrier

A predefined operational configuration of a system or device for the purpose of smoke control.

Smoke-Control Mode.

An engineered system that uses mechanical fans to produce airflows and pressure differences across smoke barriers to limit and direct smoke movement.

Smoke-Control System

A space within a building enclosed by smoke barriers, including the top and bottom, that is part of a zoned smoke-control system.

Smoke-Control Zone

A device that meets the requirements of UL 555S, Standard for Leakage Rated Dampers for Use in Smoke Control Systems Smoke Exhaust System. A mechanical or gravity system intended to move smoke from the smoke zone to the exterior of the building.

Smoke Damper

The zone in which the fire is located

Smoke Zone

The vertical airflow within buildings caused by temperature differences between the building interior and exterior.

Stack Effect

An environment in which the quantity and location of smoke is limited or otherwise restricted to allow for ready evacuation through the space.

Tenable Environment.

# 1601.2 Vents Required Vent pipes shall be installed in each drainage fixture trap, unless otherwise provided in this code. Vent pipes shall protect the drainage piping system against siphonage and back pressure and shall ensure air circulation throughout the drainage system. Vent pipes shall be installed in accordance with the requirements of this chapter.

1601.2 Vents Required

Vent pipe shall be of cast iron, galvanized steel, galvanized wrought iron, Schedule ________ , Schedule ________ , or other approved materials having a smooth and uniform bore.

40 ABS DWV, 40 PVC DWV

The diameter of a vent connected to a drainage fixture shall not be less than one and ________ nor shall be less than one-half ________ of the drain fixture it is connected.

(1-1/4) inches (32 mm) (1/2) the diameter

Vent fittings shall be cast iron, galvanized malleable iron, or galvanized steel, ABS, PVC, or other approved materials. Galvanized malleable iron or galvanized steel shall not be installed underground and shall be kept at least ________ above ground.

6 inches (152 mm)

Minimum sized vent pipes shall be installed in a horizontal position not exceeding ____________________ in Table 16-1.

1/3 of the total permitted length

All vent pipes shall extend vertically before offsetting horizontally not less than ____________ above the flood level rim of the fixture being served. When two more vent pipes converge before being connected to any other vent pipes, such vent pipes shall rise to a point at least ________ in height above the flood level rim of the drainage fixture it serves.

6 inches (152 mm)

Any drainage stack pipe that serves ________ or more stories above the horizontal building drain or other horizontal drain shall be provided with parallel vent stack. The vent stack shall be connected to the drainage stack every ________ floor, starting from the uppermost fixture drain and counting down. The vent stack shall be connected to the drain stack by means of a yoke vent. The size shall be not less than the diameter of either the drainage or the vent stack and shall use whichever is smaller.

10 Fifth

Is a method of vent piping where the vertical drainage piping serves as a vent for a maximum of four (4) trap arms or drainage fixtures of one (1) and two (2) fixture units. All wet vented drainage fixtures and continuous vent discharging into a wet vent shall be within the same floor level.

Wet Venting

No wet vent shall exceed ____________ in developed length.

6 ft (1829 mm)

Approved ____________ in new buildings and structures shall be provided in the locations described in this section in accordance with the RA 9514, Revised Fire Code of the Philippines of 2008.

automatic sprinkler systems

Standard for the Installation of Automatic Sprinkler System.

NFPA-13

Standard for the Installation of Standpipe System

NFPA-14

Standard for Installation of Centrifugal Fire Pumps.

NFPA-20

Standard for the Inspection, Testing, and Maintenance of Water-based Fire Protection Systems.

NFPA-25

Sprinkler Water supply-minimum of ____ fire duration

1 hour

Standpipe system water supply-minimum of ________ fire duration

45 minutes

system shall be limited to 8-storey buildings only.

Dry standpipe (Class I or III)

ystem shall be used for more than 8-storey buildings

Wet standpipe (Class II or III)

that is not connected to the automatic sprinkler piping shall be designed for a residual pressure of 30 psi. Water supply shall consist of storage tank sized for one (1) hour of operation and 2 pumps that will automatically operate by sensing the pressure drop in piping system.

Wet Standpipe system (Class II)

Portable fire extinguisher shall be installed in accordance with RA 9514 and in the following locations.

1. In new and existing occupancies 2. Within 30 feet (9144 mm) of commercial cooking equipment. 3. In areas where flammable or combustible liquids are stored, used or dispensed. 4. On each floor of structures under construction. 5. Special-hazard areas, including but not limited laboratories, computer rooms and generator 6. Large- and small-family day-care homes shall be equipped with a portable fire extinguisher having a minimum 2A: 10-B: C rating.

For determining the number of elevators the following shall be used as basis:

(1) There shall be one elevator per 220 persons occupying the building other than the first floor. (2) By floor area, 9.3 m? of floor area is the average density of occupancy per person. (3) Floor area divided by 9.3 m equal number of persons. (4) Number of persons divided by 220 is equal to the number of elevators.

Permit for Elevators

The person or firm who intends to install a new elevator, dumbwaiter, escalator, moving walk, or manlift, shall submit the erection plans to the Authority Having Jurisdiction for review.

All sides of existing elevator hoistways shall be permanently enclosed, except for the necessary entrances, to a height of not less than ________ above each floor.

6ft. (1.83 m)

Enclosures shall be building walls, solid fixed partitions, metal grating, wood, grillwork. Where grillwork is used, the wire shall be not less than No. 10 W & M gage steel wire, ________ diameter.

0.135 in (3.4 mm)

Enclosures shall be so supported and braced as to deflect not more than 1 in. (25 mm) when subjected to a force of ________ applied horizontally at any one point.

100 Ibf (445N)

The pit floor on any hoistway not extending to the ground shall be capable of sustaining a live load of not less than ________ in all open areas.

125psf (5.98 Kpa)