Instruction Manual ROYTRONIC EXCEL™ Series AD Electronic Metering Pumps For file reference, please record the following data: Model No: _____________________________________ Serial No: _____________________________________ Installation Date: ________________________________ Installation Location: _____________________________ When ordering replacement parts for your LMI Metering Pump or Accessory, please include complete Model Number and Serial Number of your unit. Carefully read and understand all precautions before installing or servicing any metering pump. 201 Ivyland Rd. Ivyland, PA 18974 TEL: (215) 293-0401 FAX: (215) 293-0445 www.lmipumps.com Lit# 2024.C 10/2011

ROYTRONIC EXCEL™ Series AD Model AD 2 5 1 - 8 3 8 S I Model Code Configuration *VU[YVS *VKL AD2 - Dual Manual Control – Digital: Stroke frequency and length manually adjustable with digital LCD display, low level indication (remote input). Display configurable to indicate calculated pump flow. AD8 - Pulse/Analog Input w/ Dual Manual Control – Digital: Pulse or 4-20 mA signal input controls frequency, digital LCD display, manual stroke length control, frequency manually adjustable when in local control, pulse multiply/divide functions, 24 V output for remote device. Includes dual low level float...

Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 Unpacking Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Installation. . . . . . . . . . . . . . . . . . . . . . ....

1.0 PRECAUTIONS The following precautions should be taken when working with LMI metering pumps. Please read this section carefully prior to installation. Protective Clothing ALWAYS wear protective clothing, face shield, safety glasses and gloves when working on or near your metering pump. Additional precautions should be taken depending on the solution being pumped. Refer to MSDS precautions from your solution supplier. Water Pre-Prime All LMI pumps are pre-primed with water when shipped from the factory. If your solution is not compatible with water, disassemble the Pump Head Assembly. Thoroughly...

Back Pressure/Anti-Syphon Valve If you are pumping downhill or into low or no system pressure, a back pressure/antisyphon device such as LMI’s Four-Function Valve should be installed to prevent overpumping or syphoning. Contact your LMI distributor for furthur information. Electrical Connections WARNING: To reduce the risk of electrical shock, the metering pump must be plugged into a properly grounded grounding-type receptacle with ratings conforming to the data on the pump control panel. The pump must be connected to a good ground. Do not use adapters! All wiring must conform to local electrical...

2.0 Introduction LMI is the world’s most versatile manufacturer of economical and efficient metering pumps. This manual addresses the installation, maintenance and troubleshooting procedures for manually and externally controlled pumps. LMI has a worldwide network of stocking representatives and authorized repair centers to give you prompt and efficient service. Please review this manual carefully. Pay particular attention to warnings and precautions. Always follow good safety procedures, including the use of proper clothing, eye and face protection. AD2XY (where X is any number; where Y is 1,...

UNPACKING CHECK LIST 2.2 Unpacking Check List Your carton will contain many or all of the following items. Please notify the carrier immediately if there are any signs of damage to the pump or its parts. Metering Pump Ceramic Foot Valve Weight Foot Valve Injection Check Valve External Control Cable (0, 1, or 2 Cables) Four-Function Valve (Optional) Tube Connection Hardware 7

Pump Location and Installation Locate pump in an area convenient to solution tank and electrical supply. The pump should be accessible for routine maintenance, and should not be operated in ambient temperatures above 113°F (45°C). If the pump will be exposed to direct sunlight, LMI black, UV resistant tubing should be installed. This pump is cord connected and not intended for permanent mounting to a building. However, temporary mounting to stabilize the pump during operation may be necessary as long as tools are not required for the installation or removal of the pump. Pump Mounting The pump...

3.2.2 Suction Lift - Wall Bracket Mount The pump may be mounted using an LMI Wall Mount Bracket Assembly (part no. 34643) directly above the solution tank. A pump mounted in this manner allows for easy changing of solution tanks or drums. 3.2.3 Suction Lift - Tank Mount The pump may be mounted on a LMI 10-gallon tank (part no. 27421), 35-gallon tank (part no. 27400), and 50-gallon tank (part no. 26350). 3.2.4 Suction Lift - Shelf Mount The pump may be mounted on a shelf (customer supplied) maintaining a suction lift of less than 5 ft (1.5 m).

Tubing Connections ,QVHUW WXELQJ WKURXJK &RXSOLQJ 1XW²7XELQJ VKRXOG HQWHU WKH VPDOOHU HQG RI WKH &RXSOLQJ 1XW ¿UVW RULHQWLQJ the larger opening of the Coupling Nut toward the tubing end. 2a. For 1/4” OD tubing: Position the Female Ferrule so that 1/4” to 3/8” (5-10 mm) of tubing protrudes from the Female Ferrule. Orient the raised collar of the Ferrule toward the Coupling Nut (reference FIGURE 1). 2b. For 3/8” or 1/2” OD tubing: Position a Female Ferrule about one inch (25 mm) from end of tubing. Orient the UDLVHG FROODU RI WKH )HPDOH )HUUXOH WRZDUG WKH &RXSOLQJ 1XW 7KHQ LQVHUW WKH 0DOH )HUUXOH...

Four-Function Valves (4-FV) Your pump may be equipped with a 4-FV, or standard discharge valve. If your pump is not equipped with a four-function valve and you feel it is needed in your application, it can be purchased as an accessory. Contact your local LMI stocking distributor. The features of a 4-FV are listed below. 1. Pressure Relief: If the discharge line is over pressurized, the valve opens sending solution back to the supply tank. 2. Line Depressurization: Opening the relief knob provides line drain back to the supply tank. 3. Anti-Syphon: Prevents syphoning when pumping solution downhill...