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g. Optional airline connections shall be available for using SCBA as a supplied air respirator, or for use as an emergency escape (buddy breather) system. h. The first stage reducer shall consist of a balanced piston assembly. i. The first stage reducer shall be capable of supplying 1000 Umin. of air at input pressures from 300 psi to 4500 psi. j. The medium pressure shall be 87-130 psi. The medium pressure system shall be reliably secured against accidental alteration and adequately sealed so any unauthorized adjustment can be detected. k. The first stage reducer shall incorporate an integrated pressure relief valve to allow for any over pressurization of the medium pressure system. The relief valve shall open between 160- 220 psi. The relief valve shall be protected from adjustment by the use of ananti-tamper device. 1. The first stage reducer shall have a lifetime warranty. m. The primary reducer shall have an integrated RIC coupling. n. The SCBA shall be fitted with a RIC Universal Air Connection (UAC) male fitting connected directly to the pressure reducer to allow refilling of the cylinder with breathing air. o. The RIC coupling must point to the right side for easy access. p. The RIC system must be positioned behind the reducer hand wheel for maximum protection and easy access. q. To reduce damaging the RIC fitting, the RIC fitting should not point directly outward from the reducer or manifold area. r. The SCBA wearer should be able to connect or disconnect the RIC filling hose while wearing the SCBA. s. The distance between the leading edge of the Compressed Gas Association (CGA) fitting on the SCBA cylinder valve and the leading edge of the RIC UAC male fitting shall be a maximum of 4 inches. t. Aself-resetting relief valve shall be installed on the RIC system to protect the cylinder from over pressurization. u. The RIC UAC male shall be able to connect with any RIC UAC female fitting. v. The RIC UAC fitting shall not interfere with any operation of the SCBA. w. The RIC UAC fitting shall be equipped with a dust cap or sealing plug to prevent dust, dirt and debris from entering the RIC fitting. _ x. Dust cap shall serve as a leak proof seal. y. The RIC UAC fitting coupling shall be capable of being connected and disconnected with one hand while under pressure. z. The RIC UAC fitting coupling shall have a 4500-psi operating pressure. aa. The maximum fill time shall not exceed three (3) minutes. 3. Lung Demand Valve (LDV) a. The SCBA shall utilize a mask mounted LDV which connects to the facepiece by a simple push-in snap connection. When connected to the facepiece, the regulator shall be capable of turning 360 degrees without being disconnected. The regulator shall be capable of being reset to the donning mode while connected to the SCBA to allow the user to keep the mask in a ready position at all times (i.e. when utilizing the neck strap feature set forth in 1.lOb. above). The LDV shall have a swivel at the medium pressure hose connection to provide easier head movement.