1. Approximate dimension - May vary due to assembly tolerances and procedures.
2. Actual usable oil - Allowance has been made for 10 Gal. reserve oil.
3. LEFT HAND unit is STANDARD - For right hand unit, increase this dimension by 2”.
4. “Usable Oil” and “Oil Required to Fill Tank” are based on standard 44” high tank. If greater oil volume is required, tank height can be increased and “Usable Oil” and “Oil Required to Fill Tank” are also increased accordingly per values shown in the column “Gal. of Oil Per Inch of Tank Height.
5. Removal of belt guard and rear access panel will reduce depth of unit by 1 5/8” to allow access through machine room door, if required.
6. Power Units are furnished with an EECO valve as standard.

EECO Submersible Power Units are designed with the directly connected pump and motor submerged in the oil reservoir. Standard arrangement is with the valve and muffler mounted in the tank above the max. oil level, designed to provide convenient access for valve adjustment. Valve and muffler can be located above the tank when greater oil capacity is required. Submersible pumps and motors, due to design characteristics, are less costly than comparable air cooled components, and design of the submersible power unit allows for quick and easy assembly. These combined factors result in a more economical system, without compromising quality or performance. The inclusion of the pump and motor in the oil helps to dampen noise generated during operation. Because the pump and motor are direct connected, and the flow of the pump is a function of the speed of the motor, the gallon per minute (gpm) output is a result of available pump sizes and ranges.

The tank is constructed with a 12 Ga. steel body and ends (legs), a removable 16 Ga. steel cover, and is designed with a "V" bottom to increase surface area for improved heat dissipation. All standard tanks are 24"wide, to allow for ease of movement through standard doors and passageways. A means for checking oil level is provided. The pump and motor mounting brackets are fastened above the oil to allow for easy serviceability and are secured by means of isolation mounts to limit transmission of mechanically generated noise and vibration. Mounting feet, with holes to allow for securing to the floor, are provided, and isolation pads for installing under the unit, are included. A junction box and fittings are included to provide arrangement for wiring and connecting motor and valve leads.

Pumps are industry standard, positive displacement, low slip, three screw design, arranged for direct connection to the motor. The pump is fitted with a built in strainer on the suction end, which is removable for cleaning.

Motors are 3600 RPM, specially designed to operate submerged in oil. They are rated at 80 starts/hr or 120 starts/hr depending on oil temperature. All 3 PH. motors include leads for Across-the-Line, Wye-Delta, or Solid State starting. Motors include a built in heat detector and contact, that can be wired to the controller to shut the unit down in case of overheating.

Flow Rate: 8 GPM through 255 GPM in increments as determined by pump output.

Motor Horsepower Range: 7 ½ HP through 50HP for single pump/motor combinations.

Working Pressure: Submersible units are designed for 800 PSI max. (UL & CSA B44) working pressure when an EECO valve is used. Use of another valve may reduce this maximum. (Some larger pump sizes are limited to 600 PSI - contact EECO Sales).

All units are designed and constructed in accordance with applicable requirements of ASME A17.1.

Valves: All units include an EECO valve as standard. Down speed compensation can be furnished as an option. Other manufacturers valves can be furnished if required.

Electrical: Operation is available on 208-240/440-480/575-600 V / 3PH / 60 HZ. Provision can be made for operation on 50HZ. Units can also be provided for operation on 110-230V, Single Phase (motor Horsepower is limited to10HP).

An EECO muffler is included with each unit (can be omitted if desired). Other type mufflers can be furnished if required. Left hand arrangement is standard. Right hand arrangement is available. A grooved outlet is standard. A male threaded outlet is available.

Recommended Operating Fluid: Use a good brand of grade 32 turbine oil with a viscosity of 150 SSU @ 100 degrees F (38 C). A minus pour point is recommended. A synthetic fluid may be acceptable if it meets the same specifications.

All units are factory painted with one prime spray coat of air dry enamel.

Many different accessories and options are available. A partial listing includes: In- tank oil heater with thermostat; Oil cooler - several types and options available in several size ranges to meet installation requirements; Low oil switch; Low-pressure switch; Pressure switches to tie-in to load weighing provision provided by others; Thermostat to activate viscosity control feature provided by others; Provision for mounting controller provided by others; Motor Starter, in enclosure, mounted (and prewired) if required; Shut off valve(s); Isolation coupling(s). See EECO Hydraulic Elevator Control Valve Catalogue for specifications, data, and adjustment and trouble shooting procedures for EECO valves.

Elevator Equipment Corporation can design and manufacture a power unit to meet any special requirement. Job site conditions may require that the unit be sized to fit through a narrow space or access opening; or the machine room may require a special design or size to fit within existing dimensions.

Hybrid design: The HYBRID design combines the best features of both a submersible and dry (belt drive) power unit in a cost effective package. The pump is mounted in the tank with the shaft exposed through the wall of the tank and sealed for oil tight operation. The motor is located below and drives the pump through a combination of sheaves and belts. The standard HYBRID is only 24" wide and will therefore fit through narrow corridors and doorways.

Dual Units: A double pump motor combination can be supplied in both submersible and dry (belt drive) arrangements. This dual arrangement may be desired in facilities where the elevator is critical to the operation, as the system can be arranged so that the elevator will still operate at reduced speed if one pump or motor fails. This assures that elevator service will continue until repairs can be made. A dual unit may also be required when the amount of oil flow required to lift the car at the specified speed exceeds the output of a single pump / motor combination, Dual arrangements can be provided with the pump motor combinations in a single tank or in two separate tanks, manifolded together, if required.

A dry (belt drive) unit, with more than two pumps and motors in one tank assembly, can be provided if required.

Split Units: Special two-piece dry units can be furnished in any required size and arrangement. Access to the building, or into the machine room, may be such that the only way to install a unit is in pieces, with final assembly on the job. For any arrangement, EECO Engineering can design a solution and provide you with a "footprint" of the proposed unit for your use in verifying space requirements.

Special Environmental Conditions: EECO can provide units for installation in hazardous or humid environments - moisture resistant or explosion proof.

Our technical service representatives are always ready to assist you and answer any questions that you may have. Call us at: (888) 577-EECO (3326)