Assessments - 2, GPA: 4.5
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The sign shall read, the venting, including but not limited to decks and porches, the in print size no less than one-half (1/2) inch in size, “GAS following requirements shall be satisfied: VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”. 1. INSTALLATIONOFCARBONMONOXIDEDETECTORS. At the time of installation of the side wall horizontal vented 4. INSPECTION. The state or local gas inspector of the side gas fueled equipment, the installing plumber or gas fitter shall wall horizontally vented gas fueled equipment shall not observe that a hard wired carbon monoxide detector with an approve the installation unless, upon inspection, the inspector alarm and battery back-up is installed on the floor level where observes carbon monoxide detectors and signage installed the gas equipment is to be installed. In addition, the installing in accordance with the provisions of 248 CMR 5.08(2)(a) 1 plumber or gas fitter shall observe that a battery operated through 4. or hard wired carbon monoxide detector with an alarm is (b) EXEMPTIONS: The following equipment is exempt installed on each additional level of the dwelling, building or from 248 CMR 5.08(2)(a)1 through 4: structure served by the side wall horizontal vented gas fueled 1. The equipment listed in Chapter 10 entitled equipment. It shall be the responsibility of the property owner “Equipment Not Required To Be Vented” in the to secure the services of qualified licensed professionals for most current edition of NFPA 54 as adopted by the the installation of hard wired carbon monoxide detectors Board; and a. In the event that the side wall horizontally vented gas 2. Product Approved side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, fueled equipment installed in a room or structure the hard wired carbon monoxide detector with alarm and separate from the dwelling, building or structure battery back-up may be installed on the next adjacent used in whole or in part for residential purposes. floor level. (d) MANUFACTURER REQUIREMENTS -GAS b. In the event that the requirements of this subdivision can EQUIPMENT VENTING SYSTEM NOT PROVIDED. not be met at the time of completion of installation, the When the manufacturer of a Product Approved side owner shall have a period of thirty (30) days to comply wall horizontally vented gas fueled equipment does not with the above requirements; provided, however, that provide the parts for venting the flue gases, but identifies during said thirty (30) day period, a battery operated “special venting systems”, the following requirements carbon monoxide detector with an alarm shall be shall be satisfied by the manufacturer: installed. 1. The referenced “special venting system” instructions shall be included with the appliance or equipment 2. APPROVED CARBON MONOXIDE DETECTORS. Each installation instructions; and carbon monoxide detector as required in accordance with the 2. The “special venting systems” shall be Product above provisions shall comply with NFPA 720 and be ANSI/ Approved by the Board, and the instructions for UL 2034 listed and IAS certified. that system shall include a parts list and detailed installation instruction. (e) A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all venting instructions, all parts lists for venting instructions, and/or all venting design instructions shall remain with the appliance or equipment at the completion of the installation. 22618-4-1106 Page 5 GAS SUPPLY Consult the current National Fuel Gas Code, ANSI Z223.1 CAN/ CGA-B149 (.1 or .2) installation code. Recommended Gas Pipe Diameter Pipe Length Schedule 40 Pipe Tubing, Type L Inside Diameter Outside Diameter Nat. L.P. Nat. L.P. 0-10 feet 1/2” 3/8” 1/2” 3/8” 0-3 meters 12.7mm 9.5mm 12.7mm 9.5mm 10-40 feet 1/2” 1/2” 5/8” 1/2” 4-12 meters 12.7mm 12.7mm 15.9mm 12.7mm 40-100 feet 1/2” 1/2” 3/4” 1/2” 13-30 meters 12.7mm 12.7mm 19mm 12.7mm 100-150 feet 3/4” 1/2” 7/8” 3/4” 31-46 meters 19mm 12.7mm 22.2mm 19mm Note: Never use plastic pipe. Check to confirm whether your local codes allow copper tubing or galvanized. Note: Since some municipalities have additional local codes, it is always best to consult your local authority and installation code. The use of the following gas connectors is recommended: — ANSZ21.24ApplianceConnectorsofCorrugatedMetalTubing and Fittings — ANS Z21.45 Assembled Flexible Appliance Connectors of Other Than All-Metal Construction The above connectors may be used if acceptable by the authority havingjurisdiction.ThestateofMassachusettsrequiresthataflexible appliance connector cannot exceed three feet in length. FLARE FITTING FLARE SHUT OFF VALVE 3/8 NPT SOLENOID FLEX TUBING NIPPLE GAS VALVE Figure 1 Installing a New Main Gas Cock Each appliance should have its own manual gas cock. A manual main gas cock should be located in the vicinity of the unit. Where none exists, or where its size or location is not ad equate...
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