Plumbing Code in Commercial Kitchens NH BOA May 9, 2012
Main Topics Grease Interceptors Indirect Waste Receptors Cleaning Chemical Dispensers Thermal Expansion
IPC - Chapter 10 Traps Interceptors Separators
Section 1002 Trap Requirements 1002.1 Fixture Traps. Each fixture shall be separately trapped by a liquid-seal trap, except as otherwise permitted by this code. The vertical distance from the fixture outlet to the trap weir shall not exceed 24 inches, and the horizontal distance shall not exceed 30 inches measured from the centerline of the fixture outlet to the centerline of the inlet of the trap. The height of a clothes washer standpipe above trap shall conform to Section 802.4. A fixture shall not be double trapped.
Section 1002.1 Exception #3 A grease interceptor intended to serve as a fixture trap in accordance with the manufacturer s installation instructions shall be permitted to serve as the trap for a single fixture or a combination sink of not more than three compartments where the vertical distance from the fixture outlet to the inlet of the interceptor does not exceed 30 inches and the developed length of the waste pipe from the most upstream fixture outlet to the inlet of the interceptor does not exceed 60 inches.
GT2700 Grease Interceptor Installation & Cleaning Instructions Zurn Light Commercial Series Grease Interceptors #2700 consist of a interceptor rated at ( ) gpm and a properly sized flow control fitting. INSTALLATION 1. Zurn Light Commercial Grease Interceptors should be installed as close as possible to the fixture being served. Always install where there is easy access for cover removal and cleaning. 4. The cleanout plug should be installed over the outlet of the interceptor. 5. The interceptor is to be installed using no-hub couplings.
1002.2 Design of traps. Fixture traps shall be self-scouring. Fixture traps shall not have interior partitions, except where such traps are integral wih the fixture or where such traps are constructed of an approved material that is resistant to corrosion and degradation. 1002.3 Prohibited Traps 6. Drum traps Exception: Drum traps used as solids interceptors and drum traps serving chemical waste systems shall not be prohibited. 1002.4 Trap seals. Each fixture trap shall have a liquid seal of not less than 2 inches and not more than 4 inches or deeper for for special designs relating to accessible fixtures.
1003.1 Where required. Interceptors and separators shall be provided to prevent the discharge of oil, grease, sand and other substances harmful or hazardous to the building drainage system, the public sewer, the private sewage disposal system or the sewage treatment plant or processes.
1003.2 Approval. The size, type and location of each interceptor and of each separator shall be designed and installed in accordance with the manufacturer s instructions and the requirements of this section based on the anticipated conditions of use. Wastes that do not require treatment or separation shall not be discharged into any interceptor or separator.
1003.2 Approval. The size, type and location of each interceptor and of each separator shall be designed and installed in accordance with the manufacturer s instructions and the requirements of this section based on the anticipated conditions of use. Wastes that do not require treatment or separation shall not be discharged into any interceptor or separator.
1003.3.1 Grease Interceptors and Automatic Grease Removal Device required. (cont.) Fixtures and equipment shall include: pot sinks pre-rinse sinks soup kettles or similar devices wok stations floor drains or sinks into which kettles are drained automatic hood wash units dishwashers without pre-rinse sinks.
1003.3.2 Food Waste Grinders Where food waste grinders connect to grease interceptors, a solids interceptor shall separate the discharge before connecting to the grease interceptor. Solids interceptors and grease interceptors shall be sized and rated for the discharge of the food waste grinder. Emulsifiers, chemicals, enzymes and bacteria shall not discharge into the food waste grinder.
GT2700 Grease Interceptor Installation & Cleaning Instructions Zurn Light Commercial Series Grease Interceptors #2700 consist of a interceptor rated at ( ) gpm and a properly sized flow control fitting. INSTALLATION 1. Zurn Light Commercial Grease Interceptors should be installed as close as possible to the fixture being served. Always install where there is easy access for cover removal and cleaning. 2. A flow control must be installed as close as possible to the underside of the fixture. The flow control must be installed with the vent or (air intake) on the downstream side of the orifice plate. The vent connection is positioned to the top of the flow control fitting and piped upward higher than source of water, or to building vent system 3. It is recommended that a cleanout tee be installed before the flow control to access the flow control orifice and clear debris. 4. The cleanout plug should be installed over the outlet of the interceptor. 5. The interceptor is to be installed using no-hub couplings. 6. Outlet piping should be connected to the sanitary drain, and pipe size should be equal to or larger than the inlet piping. Outlet pipe should also be vented so the interceptor is not siphoned. 7. Solid waste should not go into an interceptor. Food grinder waste and other solids should be captured in the sink or by a solids interceptor before reaching the grease interceptor. Form # JS2 Date: 3/13/09 C.N. No. 99791 Rev. F Page 1 of 2 ZURN LIGHT COMMERCIAL PLUMBING PRODUCTS 2640 South Work Street Falconer, NY 14733 Phone: 1-800/906-5060 Fax: 716/665-3126 World Wide Web: www.zurn.com
In compliance?
1003.3.4.2 Rate of flow controls Grease interceptors shall be equipped with devices to control the rate of water flow so that the water flow does not exceed the rated flow. The flow- control device shall be vented and terminate not less than 6 inches (152 mm) above the flood rim level or be installed in accordance with the manufactures instructions.
GT2700 Grease Interceptor Installation & Cleaning Instructions Zurn Light Commercial Series Grease Interceptors #2700 consist of a interceptor rated at ( ) gpm and a properly sized flow control fitting. INSTALLATION 1. Zurn Light Commercial Grease Interceptors should be installed as close as possible to the fixture being served. Always install where there is easy access for cover removal and cleaning. 2. A flow control must be installed as close as possible to the underside of the fixture. The flow control must be installed with the vent or (air intake) on the downstream side of the orifice plate. The vent connection is positioned to the top of the flow control fitting and piped upward higher than source of water, or to building vent system 3. It is recommended that a cleanout tee be installed before the flow control to access the flow control orifice and clear debris. 4. The cleanout plug should be installed over the outlet of the interceptor. 5. The interceptor is to be installed using no-hub couplings. 6. Outlet piping should be connected to the sanitary drain, and pipe size should be equal to or larger than the inlet piping. Outlet pipe should also be vented so the interceptor is not siphoned. 7. Solid waste should not go into an interceptor. Food grinder waste and other solids should be captured in the sink or by a solids interceptor before reaching the grease interceptor. Form # JS2 Date: 3/13/09 C.N. No. 99791 Rev. F Page 1 of 2 ZURN LIGHT COMMERCIAL PLUMBING PRODUCTS 2640 South Work Street Falconer, NY 14733 Phone: 1-800/906-5060 Fax: 716/665-3126 World Wide Web: www.zurn.com
1003.3.3 Grease interceptors and automatic grease removal devices not required. A Grease interceptor or an automatic grease removal device shall not be required for individual dwelling units or any private living quarters.
Chapter 8 Indirect/Special Waste
802.1 Where Required. Food-handling equipment and clear-water waste shall discharge through an indirect waste pipe as specified in Sections 802.1.1 through 802.1.8.
Section 802.1.1 Food Handling. Equipment and fixtures utilized for the storage, preparation and handling of food shall discharge through an indirect waste pipe by means of an air gap.
802.2.1 Air gap. The air gap between the indirect waste pipe and the flood level rim of the waste receptor shall be a minimum of twice the effective opening of the indirect waste pipe. Chapter 2 Definitions: Air Gap (Drainage System): The unobstructed vertical distance through the free atmosphere between the outlet of the waster pipe and the flood level rim of the receptacle into which the waste pipe is discharging. Floor Level Rim: The edge of the receptacle from which water overflows.
Waste Receptor 2 x D
802.3 Waste Receptors. Every waste receptor shall be of an approved type. A removable strainer or basket shall cover the waste outlet of waste receptors. Waste receptors shall be installed in ventilated spaces. Waste receptors shall not be installed in bathrooms or toilet rooms or in any inaccessible or unventilated space such as a closet or storeroom. Ready access shall be provided to waste receptors.
802.3.1 Size of Receptors. A waste receptor shall be sized for the maximum discharge of all indirect waste pipes served by the receptor. Receptors shall be installed to prevent splashing or flooding.
802.3.2 Open hub waste receptors. Waste receptors shall be permitted in the form of a hub or pipe extending not less than 1 inch (25.4 mm) above a water-impervious floor and are not required to have a strainer.
The 3 Bay Sink
802.1.8 Food Utensils, Dishes, Pots and Pan Sinks Sinks used for the washing, rinsing or sanitizing of utensils, dishes, pots, pans, or service ware used in the preparation, servicing or eating of food shall discharge indirectly through an air gap or an air break or directly connect to the drainage system.
WASH RINSE SANITIZE WITH GREASE INTERCEPTION, DIRECTLY CONNECTED
Wash, rinse and sanitize with grease interception, indirectly connected using an approved waste receptor
CHEMICAL DISPENSERS AT THE MOP SINK
Expansion Tanks Required? Section 607 Hot Water Supply System 607.3 Thermal expansion control. A means of controlling increased pressure caused by thermal expansion shall be provided where required in accordance with Sections 607.3.1 and 607.3.2. 607.3.1 Pressure-reducing valve. For water service system sizes up to and including 2 inches, a device for controlling pressure shall be installed where, because of thermal expansion, the pressure on the downstream side of a pressure-reducing valve exceeds the pressure reducing valve setting. 607.3.1. Backflow prevention device or check valve. Where a backflow prevention device, check valve or other device is installed on a water supply system utilizing storage water heating equipment such that thermal expansion causes an increase in pressure, a device for controlling pressure shall be installed. IRC P2903.4
Plumbing Safety & Licensing Inspectors Ron Lemere 603-223-4289 Ext. 25269 Ronald.lemere@dos.nh.gov; Sam Zannini Jr. 603 223-4289 Ext. 25271 Sammuel.zanniniJr@dos.nh.gov; Earl Middlemiss 603-223-4289 Ext. 25270 Earl.middlemiss@dos.nh.gov Contact Jeff Cyr 603-223-4289 Ext. 25241 Jeffrey.cyr@dos.nh.gov;