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5. After the potted conduit and the VP1000 vacuum pump are in place (do not final tighten), you can begin to make up the electrical conduit that will connect the two components. Keep in mind that an electrical union and the explosion proof junction box must be installed between the two points. 6. Measure and select the proper size "UL" listed electrical nipples (not included). Feed the wiring from the potted conduit and the vacuum pump through the necessary electrical conduit components and nipples making sure that each piece is connected by a minimum of five threads.All electrical conduit connections must have at least five threads of engagement to be in compliance with the installation procedure. 7. Final tighten the mount for the VP1000 vacuum pump and also the hex locking nuts for the potted conduit assembly only after all the electrical conduit components have been correctly installed according to NFPA codes. 8. Pull the excess wire from the potted conduit and the vacuum pump through to the explosion proof junction box as required. 9. After the electrical conduit connections are completed and the wiring has been pulled into and through the explosion proof junction box the excess wire can be measured and cut. The length of the wires should allow for stripping and a wire nut connection for each wire (approximately 6"). The wires from the potted conduit and the vacuum pump are color coded and should be connected like for like. Installing the MC100 Control Module Overview The MC100 control module is universal to all Healy VP1000 installations. The unit can accept up to four individual signals from each side of the dispenser and is designed to perform these specific functions: • To accept a constant 120 Volt AC power supply from the dispenser. • To supply a constant 120 Volt AC power supply to the VP1000 vacuum pump. • To receive a separate signal from each side of a dispenser for authorization to dispense. Solenoid valves are most commonly used but any signal of 5 volts or above (AC or DC)will be accepted by the MC100. • To send a low volt DC signal to the VP1000 vacuum pump to begin operation and to send a second low volt DC signal if the dispenser has both sides authorized to dispense simultaneously. • To disable the dispenser if the vacuum pump is not operating properly. Mounting the MC100 Control Module The MC100 control module is mounted in the electronics area of the dispenser. If the dispenser is a mechanical type with no vapor barrier the module must be located in a suitable "UL listed" explosion proof J-box. The mounting location must be easily accessible to a service technician. The control module contains diagnostic LED lights and a power reset needed to service the system. 1. Identify the wire harness/control module part number to be installed. (See the Dispenser Models section in this manual) 2. The MC100 Control Module must be mounted to the inner framework of the dispenser following all applicable installation codes. 3. The MC100 Control Module is used with all wire harnesses described in the Dispenser Models chapter in this manual. • The 1360A module/wire harness includes 3M Scotchl-ok wire connectors to interface with the dispensers existing solenoid wiring. • All other dispenser specific wire harnesses use mating plug connectors. (See the Dispenser Models chapter in this manual) 8-IB GARB Approved IN 8-Healy Universal Manual-Executive Orders VR-281 and VR-282