3003 W CASINO RD BLDG 40-87 2025-08-21

TFP1O2O Page 6 of 20 Installation be equipped with a Dry Pipe Valve however, it must be reset to relieve Accelerator, refer to the Technical at a pressure which is in accordance General Instructions Data Sheet TFP1105 for the VIZOR with the requirements of the author- Proper operation of the Model DPV-1 Electronic Dry Pipe Valve Accel- ity having jurisdiction. Dry Pipe Valve depends upon its trim erator or TFP1112 for the Model To reset the Pressure Relief Valve, being installed in accordance with the ACC-1 Mechanical Dry Pipe Valve first loosen the jam nut and then instructions given in this Technical Data Accelerator. adjust the cap accordingly — Sheet. Failure to follow the appropriate • Care must be taken to make sure that clockwise for a higher pressure trim diagram may prevent the DPV-1 check valves,strainers,globe valves, setting or counter-clockwise for a Valve from functioning properly, as etc.are installed with the flow arrows lower pressure setting.After veri- well as void listings,approvals,and the in the proper direction. fying the desired pressure setting, manufacturer warranties. tighten the jam nut. • Drain tubing to the drip funnel must . Installation of an Air Maintenance Failure to latch open the Clapper be installed with smooth bends that Device,Installation described in the MaintTechnienance prior to a system hydro- will not restrict flow. cal Data Section, is recommended. static test may result in damage to the . The main drain and drip funnel drain Clapper Assembly. may be interconnected provided a • An Inspector's Test Connection as The DPV-1 Valve must be installed in a check valve is located at least 12 in. required By NFPA 13 must be pro- readily visible and accessible location. (300 mm)below the drip funnel.The vided on the system piping at the Low Body Drain Valve(Figure 3,4,or most remote location from the Model The DPV-1 Valve and associated trim DPV-1 Valve. must be maintained at a minimum tem- 5) may be piped so as to discharge must ure of 40°F maintained at into the Drip Funnel or to a separate Conduit and electrical connections peradrain. are to be made in accordance with Heat tracing of the DPV-1 Valve or its Suitable provision must be made the requirements of the author- associated trim is not permitted. Heat for disposal of drain water. Drainage ity having jurisdiction and/or the tracing can result in the formation of water must be directed such that it National Electric Code. hardened mineral deposits that are will not cause accidental damage to Before a system hydrostatic test is capable of preventing proper operation. property or danger to persons. performed in accordance with NFPA The Model DPV-1 Dry Pipe Valve is to 13 system acceptance test require- be installed in accordance with the fol- Unused pressure alarm switch and/ ments, the Clapper Assembly is to lowing criteria: or water motor alarm connections be manually latched open (Ref. Fig- must be plugged. ure 2D); the Automatic Drain Valve • All nipples,fittings,and devices must The Pressure Relief Valve provided (Figure 3,4,or 5)is to be temporarily be clean and free of scale and burrs with the Valve Trim is factory set to replaced with a 1/2 in. NPT plug,the before installation. Use pipe thread relieve at a pressure of approximately 3/32 in. Vent Fitting (Item 13, Figure sealant sparingly on male pipe 45 psi (3,1 bar), which can typically 3; Item 15, Figure 4; or Item 15, Fig- threads only. be used for a maximum normal sys- ure 5) is to be temporarily replaced • The DPV-1 Valve must be trimmed tem air pressure of 40 psi (2,8 bar). with a 1/4 in. NPT plug, and the in accordance with Figures 3, 4, or The Pressure Relief Valve may be Handhole Cover Bolts are to be tight- 5, as applicable. If the DPV-1 is to reset to a lower or higher pressure; ened using a cross-draw sequence.