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INSTALLATION, OPERATING and MAINTENANCE INSTRUCTIONS
TOOLS REqUIREd
• Utility knife
• Medium Phillips screwdriver
• Small Phillips screwdriver
• Electrician's pliers (multipurpose, stripping and crimping)
PROdUCT RATINGS
Maximum motor current draw:
12 volt versions
24 volt versions
Normal operating current (depending on operating conditions - pressure, flow, etc.):
12 volt versions
24 volt versions
Minimum Voltage:
All 12 volt motors: 11.5 volts
All 24 volt motors: 23 volts
Mass: 46 lbs. (21 kg)
Maximum Flow: 1000 GPM
Maximum Pressure: 200 PSI
Noise Emission: 95 Db @1m with maximum flow
PROdUCT WARNINGS
WARNING:
The maximum flow of the Gemini and Akromatic
from the bottom of the inlet flange. Ensure these values and an appropriate safety factor is used to determine a
proper support structure.
WARNING:
Charge the Electric Gemini slowly. Rapid charging may cause water hammer.
WARNING:
Aim the Electric Gemini in a safe direction before pumping water through it.
STYLE 3479 ELECTRIC GEMINI™
(
14.0 amps each for elevation and rotation motors
3.0 amps for nozzle pattern motor
7.5 amps each for elevation and rotation motors
1.5 amps for nozzle pattern motor
3 - 10 amps each for elevation and rotation motors
0.7 amps for nozzle pattern motor
2 - 5 amps each for elevation and rotation motors
0.4 amps for nozzle pattern motor
Version Available)
• Medium flat screwdriver
• Small flat screwdriver
•
1
/
inch hex head wrench
2
®
is 1000 GPM. The center of the waterway outlet is 17 inches
117879
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Table of Contents
Related Manuals for Akron ELECTRIC GEMINI 3479
Summary of Contents for Akron ELECTRIC GEMINI 3479
- Page 1 STYLE 3479 ELECTRIC GEMINI™ INSTALLATION, OPERATING and MAINTENANCE INSTRUCTIONS Version Available) TOOLS REqUIREd • Utility knife • Medium flat screwdriver • Medium Phillips screwdriver • Small flat screwdriver • Small Phillips screwdriver • inch hex head wrench • Electrician’s pliers (multipurpose, stripping and crimping) PROdUCT RATINGS Maximum motor current draw: 12 volt versions 14.0 amps each for elevation and rotation motors 3.0 amps for nozzle pattern motor 24 volt versions 7.5 amps each for elevation and rotation motors 1.5 amps for nozzle pattern motor Normal operating current (depending on operating conditions - pressure, flow, etc.): 12 volt versions 3 - 10 amps each for elevation and rotation motors 0.7 amps for nozzle pattern motor 24 volt versions 2 - 5 amps each for elevation and rotation motors 0.4 amps for nozzle pattern motor Minimum Voltage: All 12 volt motors: 11.5 volts All 24 volt motors: 23 volts Mass: 46 lbs. (21 kg) Maximum Flow: 1000 GPM...
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Page 2: General Instructions
WARNING: Although the logic box includes a water resistant coating it is important to keep water out of the control and logic boxes. Prolonged exposure to water will cause damage. WARNING: When the cover of the control or logic box is removed check that the O-ring under the cover is intact and free of dirt and debris. WARNING: The Electric Gemini uses current limiting for both the monitor and nozzle stops. Use only appropriate Akron Brass nozzles. WARNING: Do not use the electric controls when the override cranks are being used or are in position for use. WARNING: Make the connection of the vehicle and auxiliary battery the final step. WARNING: If any tags or bands are worn or damaged and cannot be easily read, they should be replaced. WARNING: Disconnect power and disable flow before maintenance. WARNING: The Electric Gemini is not designed for auto oscillation. WARNING: Keep all personnel out of the Danger Zone (Figure 4), in front of the outlet of the monitor when the WARNING water source is attached. Dangerous flow velocities can cause serious injury. WARNING: The Electric Gemini monitor contains moving parts. Keep hand, finger and objects away from pinch points. WARNING: Not designed for explosive environments. WARNING: Exceeding the maximum pressure and flow of the monitor or nozzle may cause damage. GENERAL INSTRUCTIONS • Review the instructions, wiring diagram, component layout and rotational stops diagram before installing this unit. This unit operates on 12 volt DC or 24 volt DC depending on the unit chosen. All electrical current flows through the wires. The monitor does not act as a ground. The wires from the control boxes can be cut to the length for the application plus 10 inches (See STEP 2). Do not extend the wires from the logic box to the monitor. Figure 1 dIMENSIONAL WARNING... -
Page 3: Electrical Installation Instructions
• The optional auxiliary battery is used for power failures and to ensure that the proper voltage and current are maintained at the logic box when using a smaller gauge wire for the vehicle battery wires. If the optional auxiliary battery is used, do not extend the auxiliary battery wires. This will ensure that the proper voltage and current are maintained at the monitor for it to operate properly. The optional battery is automatically recharged by the truck electrical system through the positive (auxiliary battery) and ground connections on the circuit board (Figure 2). The vehicle battery connections must have power turned on whenever the truck is running so that the battery can be recharged properly. If possible, connect the positive (vehicle battery) wire directly to the main vehicle battery or main master switch. A diode in the logic box will prevent the optional battery from feeding current back into the main truck system. • Not recommended for use in salt water applications. • For firefighting by trained firefighters only. • For use with water or standard fire fighting foams only. After use with foam, flush with fresh water. • Do not use the Electric Gemini nozzle as a forcible entry tool. • Drain the Electric Gemini monitor and nozzle after use to prevent “freeze damage”. • Ensure that the thread in the nozzle swivel matches the thread on the Electric Gemini outlet. Do not overtighten the nozzle onto the Electric Gemini. • The Electric Gemini monitor, nozzle, logic box, control boxes, optional battery, and field adjustable rotation stops are made for optimal performance, Do not alter in any manner. • Do not install shutoffs on the outlet of the Electric Gemini. • Mount the logic box, control boxes and optional battery out of Danger Zone (Figure 4). ELECTRICAL INSTALLATION INSTRUCTIONS These electrical instructions are for a Universal I logic box. Use style 6032 Universal II logic box installation and operating instructions for a UII logic box. (Sheet #122552) A. CONTROL BOXES AND JOYSTICKS WIRING AND ATTACHMENT The Electric Gemini upper and lower controls use the same control box. The following steps will prepare either one or both control boxes and joystick for attachment to the logic box. STEP 1 If the control box includes an attached cable skip to STEP 5. STEP 2 Determine the length of #20-7 cable needed, add 10 inches, then cut. For example, if a five foot length of cable is needed, add 10 inches and cut the cable 5 foot 10 inches long. - Page 4 C. BATTERY ATTACHMENT The battery connections should be the last connection made. STEP 8 AUXILIARY BATTERY - Remove the logic box cable grip nut for the auxiliary battery and place it on the battery (#16-3) cable with the threads facing out. Thread the cable through the cable grip nut until the cable grip will grab the cable. Tighten the cable grip and attach the individual wires to the proper terminals(see wiring schematic Figure 2). NOTE: Auxiliary Battery is not intended to operate the monitor. STEP 9 VEHICLE BATTERY - Remove the logic box cable grip nut for the vehicle battery and thread on to the battery (#10-2 or #12-2 depending on length) cable with the threads facing out. Thread the cable through the cable grip until the cable grip nut will grab the cable. Tighten the cable grip nut and attach the individual wires to the proper terminals (see wiring schematic Figure 2). Reattach the logic box cover and secure with the 6 screws. NOTE: To supply enough current to operate the monitor properly, adequate wire size is critical. D. MECHANICAL MONITOR ATTACHMENT The Monitor is to be mounted on the waterway with ⁄ inch bolts and nuts of grade five minimum and suitable washers with a minimum of six threads engagement. The front of the monitor in Figure 4 is considered to be point 4 and is above the identification tag. The bolts must be tightened in a criss cross pattern progressively increasing tightening torque to a maximum of 100 pound feet dry. NOTE: Not recommended to mount on a raised flange or have a butterfly valve between the flanges. This may cause damage tothe monitor’s flange when tightening the bolts. THE ROTATIONAL AND ELEVATION STOPS SET THE BOUNDARIES FOR THE AREA IN WHICH THE MONITOR IS ALLOWED TO TRAVEL AND MEETS THE REQUIREMENTS OF THE NFPA. The upper row controls the right travel, and the lower row controls the left travel. The angles for the rotational stops are with respect to the “reference direction” illustrated in Figure 4. The monitor is...
- Page 5 Figure 2 WIRING SCHEMATIC SLAVE MASTER...
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Page 6: Electrical Component Layout
Figure 3 ELECTRICAL COMPONENT LAYOUT... - Page 7 Figure 4 REFERENCE DIRECTION (UPPER ROW) (LOWER ROW) LEFT ROTATION RIGHT ROTATION (COUNTER- (CLOCKWISE) CLOCKWISE) Upper row “Right” (clockwise) rotational stop position Lower row “Left” (counterclockwise) rotational stop position ELECTRIC GEMINI ROTATION FOR EACH STOP COMBINATION Lower Row CCW / CW NO STOP 78 / 168 78 / 213 78 / 258 45 / 270 0 / 270...
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Page 8: Maintenance Instructions
Figure 5 45° above Horizontal ELEVATION 60° above Horizontal STOPS 75° above Horizontal 90° above Horizontal MAINTENANCE INSTRUCTIONS Your Electric Gemini monitor and nozzle should be inspected prior to and after each use, to ensure it is in good operating condition. Periodically, an unanticipated incident occurs where the Electric Gemini is misused in a manner that is inconsistent with standard operating practices and those listed in IFSTA. A partial list of potential misuse includes: • Operating above maximum rated pressure and flow. • Not draining, and allowing water to freeze inside. • Prolonged exposure to temperatures above 130°F, or below -25°F. • Operating in a corrosive environment. • Having the Electric Gemini nozzle hit a fixed object during operating or transportation. • Other misuse that might be unique to your specific environment. Also there are many “tell tale” signs that indicate repair is in order, such as: • Controls that are either inoperable or difficult to operate. • Excessive wear. • Poor discharge performance. • Water leaks. If any of the above situations are encountered, the Electric Gemini should be taken out of service, repaired, and tested by a qualified technician before placing it back in service. MOTOR REPLACEMENT To replace either the horizontal or vertical rotational motors: 1. Disconnect Power from the unit. 2. Loosen and remove the four socket screws (Item 54 on the Parts List) from the gearbox housing. 3. Slowly remove the motor assembly (25) and gearbox housing (6) from the unit. IMPORTANT: Make sure the internal gear, (Item 20 on the Parts List), remains in place, (hold with a screwdriver), to avoid gear alignment problems. - Page 9 REVISED: 9/16 WARRANTY AND DISCLAIMER: We warrant Akron Brass products for a period of five (5) years after purchase against defects in materials or workmanship. Akron Brass will repair or replace product which fails to satisfy this warranty. Repair or replacement shall be at the discretion of Akron Brass. Products must be promptly returned to Akron Brass for warranty service.
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