A one inch meter with one and one quarter to two inch underground piping has shown to be a hydraulically sound combination in calculations to date. The minimum size underground shall be one and one quarter inch.
The use of no smaller than a one inch water meter is required.Each unit in a two-unit complex is required to have a separate system.An OS & Y type main control valve or a lever type ball valve with a breakaway lock shall be used. A separate sprinkler control valve (option reference 3-1.1 exception No. Water Supply: The only acceptable riser arrangement is Figure A-2-2 (c).Any deviation from approved plans shall be noted on job plans by installers and approved by AHJ. No work shall be done until all permits and approved plans have been obtained. An approved set of plans and permits shall be on job site at all times. This shall be done as early as possible to facilitate information for hydraulic calculations and to have the new meter(s) installed.
It is the responsibility of the owner and/or builder to contact the Community Development Department. It shall be the responsibility of the fire sprinkler contractor to inform all parties of the requirements of the fire sprinkler system.
0 kommentar(er)
