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MOUNTlNG BRACKET MODEl NO. A B C D WEIGHT UseD PCf.15ABC 6.00 21.75 27.50 19.00 301bs. 118-15 PCf.17ABC 8.00 24.75 30.50 22.00 SOIbs. 118-15 PCI-25sABC 8.00 24.75 30.50 22.00 58 Ibs. 118-15 PCI-35ABC 10.00 3OJIO 35.75 27.75 711bs. 118-1 PCf.7OABC 12.00 34.75 40.50 32.50 130 Ibs. 51 ALL DIIENSIONS IN INCHES Suggested Architect's Specifications 1. General 1.1 The fire extinguishing system shall be the stored pressure dry chemical pre-engineered fixed nozzle type manufactured by Pyro- Chern. The system shaD provide for the protection of the paint spray area(s) described in drawing . (Note drawing number and revision.) 1.2 The system shaD be capable of automatic and manual actua- tion. It shall be UL Usted and instaIed in conformance with National Rre Protection Association Standard No. 17, .Dry Chem- ical Extinguishing Systems. and No. 33, .Spray Application using Aarnmable and Combustible Materials,. and comply with all local and/or state Codes and Standards. 1.3 The system shan be designed for operation at ambient tem- peratures from 32"F to +120oF. 2. Cylinder and Agent 2.1 - Agent. The system shall use Pyro-Chem monoammonium pho6phate-based dry chemical agent. 2.2 - Cylinders. Steel cylinders manufactured, tested, and marked in accordance with DOT 4B 350 or DOT 4B 500 shaH be used to store the extinguishing agent. Cylinder Models PCI-15ABC shaH be used with extinguishing agent fill weight of 12.5 Ibs. Cylinder Models PCl-17ABC shal be used with extinguishing agent fill weight of 17 Ibs. Cylinder Models PCI-25sABC shall be used with extinguishing agent fill weight of 25 Ibs. Cylinder Models PCI- 35ABC shaH be used with extinguishing agent fill weight of 35 Ibs. Cylinder Models PCI-7OABC shall be used with extinguishing agent fill weight of 70 Ibs. All models are charged with dry nitrogen to 350 psig at 70oF. 2.3 - Cylinder valve. A pressure sealed poppet-type valve having a brass body, stainless steel stem with rubber seat washer, fusible safety relief assembly, and pressure gage shaH be used on all agent cylinders. 2.4 - Cylinder bracketing. Cylinders shall be mounted vertically. The cylinders shan be secured by use of a steel mounting bracket affixed to a rigid object capable of supporting the weight of the filled cylinder and the concussion of cylinder discharge. 3. Actuation Controls 3.1 . Control Head. The system control head shall include a Model MCH, NMCH or ECH-Series Control Head. The control head shall be mounted directly on the valve of the agent cylinder (for single cylinder systems), in a Model MB-P2 control head mounting brack- et (for actuating up to three centraIy located agent cylinders) or directly on the valve of a pneumatic actuating cylinder. A carbon dioxide pilot carbidge that complies with MIL-C0601G shaH be used as an integral component of the control head. Control head status shan be visually indicated by a SETIFIRED indicator. 3.2 - TIIfle Delay. The system shall have a Model T-10 lime Delay to allow for fan shut down before agent discharge. 3.3 - Detection. The ambient temperature of the hazard area shaD be monitored by fixed temperature mechanical or electrical thermal detectors. When the temperature of the hazard area exceeds the rating of any detector, the detector shall a) release tension in a cable connected to the control head, causing control head activation (for mechanical detectors), or b) close a normally open switch element within the detector, sending a signal to the control head which energizes a solenoid in the control head, exer- cising the control head (for electrical detectors). 3.4 - Pneumatic actuation. For systems requiring more than three agent cylinders, the system shall have a PAG-Series Pneumatic Actuating Cylinder whose valve opens upon activation of the con': '~ troI head. The valve shall release nitrogen from the PAC cylinder into the pneumatic pipe and tubing network. This nitrogen shall depress a piston above the valve stem in each agent cylinder, opening each agent cylinder valve and releasing the pressurized agent. 3.5 - Manual actuation. The system shall have mechanical manu- al actuation capability requiring no electrical power. This is accom- plished l0ca1Iy by twisting the handle on the cover of the MCH or ECH Control Head, or remotely by means of a Model RPS-M remote mechanical pull station. 3.6 - Auxiliary output. The system shall shut off power to all fuel dispensing units in the event of system actuation. This is accom- plished by means of dry contacts on a Model MS-SPDT or MS- DPDT miniature switch installed in the control head. The miniature switch may also be used for auxiliary functions such as audible alarms or aIann signaling. 3.7 - Supervision. A Model SM Series Solenoid Monitor shall be used to supervise the integrity of all electrical actuation circuits, whether automatic or manual. 3.8 - Manual electrical actuation (optional). The system shall have electrical manual actuation capability. This is accomplished by the use of a Model RPS-E2 Remote Electrical Pull Station installed in the automatic detection circuit. 4. Distribution Nozzles 4.1 - Nozzles. The system shall utilize Pyro-Chem discharge noz- zles to distribute agent throughout the hazard area. The model, quantity, location, and orientation of nozzles shall be in accor- dance with Pyro-Chem Industrial Rre Suppression System Technical Manual, Part No. PC 98200. 4.2 - Nozzle covers. All nozzles shall be installed with nozzle cov- ""- ers to prevent foreign matter from clogging the discharge nozzles. 5. Pipe and Fittings 5.1 - Pipe. All pipe shall be Schedule 40 black, galvanized, chrome plated or stainless steel pipe in compliance with NFPA 17. All pipe ends shall be thoroughly reamed after cutting, and all oil, chips, and debris shall be removed prior to nozzle installation. 5.2 - Frttings. Standard weight malleable, galvanized, chrome plat- ed or stainless steel fittings shall be used. 5.3 - Size. All system pipe and fittings will be sized in accordance with the system Technical Manual. No substitutions are allowed. 5.4 - Joints. No joint sealant shall be used in the discharge piping. Exception: Teflon tape may be used to ensure a snug fit. 5.5 - Straps. All system discharge pipe shall be securely fastened by means of pipe hangers and/or pipe straps. UL Listed pipe hang- ers shall be used. 5.6 - Union. A union shaD be installed in the discharge piping con- veniently close to the cylinder valve to permit disconnection for inspection and service. .......