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 Dry (Belt Drive) power units are designed with the pump and motor mounted on a sub base located below the oil reservoir tank. The exposed valve, located above the tank, allows for easy access to adjustments and complies with specifications that require the manual lowering feature on the valve to be accessible without removing any panels or covers The pump and motor are mounted below and the area is enclosed with sound isolation panels to limit transmission of noise during operation. A removable belt guard is provided to allow access to the pump and motor compartment for maintenance or adjustment of the drive system. Because the pump and motor are connected by means of "v"-belts and sheaves, the pump RPM can be adjusted, by selecting the proper ratio of pump and motor sheaves, to obtain the required flow. This system meets the specifications requiring that the motor and/or pump be mounted outside of the oil reservoir, and that the pump and motor compartment be enclosed with sound isolation panels.

The tank is constructed with a 12 Ga. oil reservoir and ends (legs), and removable 16 Ga. cover, belt guard, and rear panel. A means for checking oil level is provided. Units are designed to fit through a standard machine room door. (see dimensional charts). The pump and motor are mounted on a structural steel sub frame that is secured to the main frame by means of isolation mounts to limit transmission of mechanically generated noise and vibration. Provision is included to allow for easy adjustment of belt tension and alignment. The outlet in the tank is protected by a removable screen to allow for easy cleaning. A removable oil drip pan is provided. Mounting feet with holes to allow for securing to the floor are provided, and isolation pads for installing under the unit are included.

Pumps are industry standard, foot mounted, positive displacement, low slip, three-screw design.

Motors are 1800 RPM, squirrel cage construction, specially designed for oil hydraulic elevator service. They are rated at 80 starts/hr. or 120 start/hr (all except 100 HP) as required. All 3PH motors include leads for Across-The-Line, Wye-Delta, or Solid State starting.

Flow Rate: 15 GPM through 500 GPM.

Motor Horsepower Range: 5 HP through 100 HP.

Working Pressure: Dry (belt drive) units are designed for 500 PSI max. (UL & CSA B44).

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)