RP418B

RP418A, B, C and RP818A, B Electric/Pneumatic Relays BEFORE INSTALLATION The RP418 and RP818 Electric/Pneumatic Relays are electrically operated pneumatic switches used for interlock between an electrical system and a pneumatic control system. These devices can also be used as stop and bleed valves or as diverting or selector relays. These relays are designed for wall mounting or panel mounting, depending upon the application. They can be mounted in any position without affecting the operation of the device. An optional 14003638-001 mounting kit is available for direct mounting to the MP516A operators, VP519C valves or PP901B and PP902B pressure regulators. See the Device Mounting section. No special tools are needed to install the RP418 and RP818 relays. Refer to job drawings for specific mounting locations. INSTALLATION Duct or Wall Mounting 1. Position the relay on the duct or wall and mark the knockout mounting holes or mark the first hole and measure 1 in. (25mm) to the second hole. See Fig. 1. 2. Drill holes for no. 8 mounting screws obtained locally. NOTE: When wall mounting, use the mounting holes on the sides of the relay valve body or the knockout mounting holes on the inside of the splice box. See Fig. 2. 3. Attach the relay to the panel using mounting screws obtain locally. Panel Mounting 1. Line up the no. 8 mounting holes on the sides of the valve body with existing holes in the panel or drill new holes 1 in. (25 mm) apart. 2. Attach the relay to the pane...