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Chapter 3 — System Design • Page 3 -18 REV. 1 Step No. 5 Check to make certain minimum volumes and 10. The internal equivalent length volume of maximum volume allowed between first nozzle and last nozzle are not exceeded (Tank Chart). as part t o of the not have too considered Check each rule In "General Piping Requirements" p m O pipe volume. (Example make certain none have been exceeded. If any (Ele system OK) requirement is exceeded, change to a different 11. When utilizing different size pipe in the pipe size and recalculate. See Figure 3 -22. total system, the largest size must start Refer to Tank Chart first and the additional pipe must decrease as it approaches the nozzle. Minimum Pipe Volume for PCL -300 is 300 (Example system N /A) milliliters protecting a fryer, wok, or range 12. Elbow(s) or swivel adaptors located at (Example system pipe volume Is 1781 milliliters, therefore OK) the nozzles do not have to be counted in the 25 elbow maximum requirement. Maximum Pipe Volume for PCL -300 is 1910 (Example system OK) milliliters (Example system pipe volume is 13. Additional piping requirements when 1781 milliliters, therefore OK) Maximum Volume Allowed Between First protecting a range, wok, or a fryer: Nozzle and Last Nozzle for PCL -300 is 1125 "PCL -300 - tub a of 300 mi and four milliliters (Example system, the amount of 3/8 (4) flow numbers required in total in. piping between G and L, Is 25.5 feet. 25.5 system. Of that minimum, 239 ml and feet x 37.5 mis. /ft. = 956.3 ml, therefore, OK) two (2) flow numbers must be utilized at or before the range, wok, or fryer. Refer to General Piping Requirements (Example system has 1781 ml and 10 1. Spilt piping and straight piping are both flow numbers, therefore, OK. The exam - allowed on PCL -300 and PCL -460 pie system has mi and 3 flows including the fryerer, , therefore, OK) systems. (Example system OK) 2. PCL -600 systems must use split piping 'PCL 460 — Minimum of 660 ml and tan only, with no nozzle located before the (10) flow numbers required in total split, and with a maximum of 14 flow system. Of that minimum, 180 ml and two (2) flow numbers must be utilized at points per side. 1/2 in. minimum piping or before the range, wok, or fryer. must be used up to the first split. (Example system N /A) •PCL -600 — Minimum of 960 ml and four 3. Maximum volume for 1/4 in. pipe teen (14) flow numbers required in total between a nozzle and the preceding tee system. Of that minimum, 120 ml and 2 is 410 mis. (Example system N /A) flow numbers must be utilized at or before the range, wok, or fryer. 4. Maximum flow numbers for 1/4 in. pipe is 6. (Example system N /A) 5. Maximum number of elbows between a RUN. PIPING RULE NO. 1, 8, B nozzle and the preceding tee is 5. GEN. PIPING (Example system has a maximum number TANK CHART t , 4 001/ RULE NO. 5 of 2, therefore, OK) P IPE VOLPE V L MAXIMUM PIPE TANK CHART 6. Maximum of 25 elbows are allowed in MAX. VOL GEN. the total piping system. (Example system PIP NG \ �♦ BETWEEN _ FIRST AND has 11 elbows, therefore, OK) RULE LAST NOZZLE NO. 10 TANK CHART ` 7. Maximum difference In elevation between GEN. PIPING MAX. V OL. RULE NO. 12 the tank outlet and any nozzle, or the tank GEN. BETWEEN FIRST outlet and the highest or lowest horizontal PIPING AND L4STNOZZL ° RULE pipe run, is 10 ft. (3.1 m) (Example system NO. 7 GEN. PIPING V0 0 has 5' -6" (1.7 m), therefore, OK) RULE NO.5 t ° 8. No traps are allowed in the piping network. (Example system has no traps, GEN. PIPING 008197PC p therefore, OK) RULE N0.13 9. Pipe lengths are measured from center to center of fittings. (Example system pipe Figure 3 - 22. lengths were measured from center to center of fittings, therefore, OK) ULEX 3830 April 1, 2004 PN551274(2)