306 - HVAC/R Motors Training System

Product Dimensions
(L x W x H)
42in. x 13.5in. x 25in. (240 x 1060 x 640 mm)
220lbs. (100kg)

Shipping Dimensions
(L x W x H)
47in. x 15in. x 36in. (1200 x 380 x 920 mm)
250lbs. (114kg)

A complete system of motor-related hardware allowing for training in the operational characteristics, wiring and application of industrial motors commonly used in air conditioning and refrigeration equipment. The training system is self-contained, allowing for study of a range of related motors, as well as a hermetic compressor.

The basic system includes a heavy-duty, formed-steel baseplate, electrical wiring and control module assembly, four industrial motors, a compressor, and a Prony brake.

Using a modular design, all motors and the compressor can be re-positioned on the baseplate for wiring and for performance testing, using the brake.

All wiring is accomplished through banana-jack connections on the front panel face, rather than directly between individual components.
7-Gauge, formed-steel baseplate with provision for tabletop mounting.
Two, aluminum, t-slotted mounting rails, allowing for attachment of motors, coupling guard, compressor, and Prony brake.
16-Gauge, formed-steel, control assembly support structure, allowing for mounting of control components.
16-Gauge, formed-steel, electrical enclosure, with provision for attaching front panel face, and control devices.
Powder coated and silk-screened, 1/8" aluminum front panel face.
Keyed, instructor power switch (rear of enclosure).
Two-pole, panel-mounted, circuit breaker with provision for lock-out/tag-out.
Pilot light and emergency stop switch.
Two analog meters, including a voltmeter and an ammeter.
Digital tachometer with cable connection to magnetic pick-up, mounted on the Prony brake assembly.
Wiring area, with graphics, allowing for wiring of controls, capacitor, contactor, relays, and other control components, using banana jack patch cables. Banana jacks of two varieties are used, distinguishing low voltage connections from full voltage connections.
Simulated operator interface area with single pole switch, push button control station, and phase angle control knob.
Internally-mounted, 24 VAC control transformer.
Internal electrical interlock, de-energizing power when opening electrical enclosure.
Ground fault interrupter with external reset.
Permanent internal grounding, connecting all metallic components (not dependent on student wiring).
Mounting of high and low voltage relays, magnetic starter, and capacitor on DIN rail mounting bar, beneath control panel. All components of "finger-safe" design.
Industrial-quality motors, with formed-steel, powder coated, mounting bases, and coupling, as follows:
   - Two-speed, spit-phase motor, ½ hp / 1/6 hp, 1725/1140 rpm, Class A.
   - Shaded pole motor, 1/6 hp, 1550 rpm, Class B.
   - Capacitor-start, single phase AC motor. 1/3 hp, 1725, Class B.
   - Permanent split capacitor (PSC) motor, 1/4 hp, 1100 rpm, Class B.
Provision for connecting all motors to the control module assembly using a common connector.
Commercial-quality hermetic compressor. Compressor outfitted with discharge coupling, refrigerant-type pressure gauge, loading valve and relief valve.
Custom-fabricated Prony brake, incorporating one spring scale calibrated in pounds, tension/load belt, torque/load adjustment knob, two formed-steel shaft support bearing pedestals, 5/8" steel shaft, 6" diameter cast aluminum rotor, provision for attachment of magnetic pick-up, and formed-steel, powder coated mounting base.
Elastomeric element coupling, allowing for attachment of Prony brake to all motor shafts.
Formed polycarbonate coupling guard.
Packaging for shipment via motor freight.
#306-500 - Exercise Outline (additional)
#410-001 - Portable digital multimeter.
#410-001E - Portable Multimeter, Economy
* Fifteen, patch cords. * Exercise outline. * Wiring diagrams.
110/230 VAC, 50/60 Hz, single-phase.
* Introduction to training device. * Operating procedure. * Investigating Volts, Amps and electrical power. * Measurement of torque, speed and shaft power for a split-phase motor. * Measurement of torque, speed and shaft power for a capacitor-start motor. * Investigation of torque, speed and shaft power characteristics for a capacitor-start motor. * Simple motor on/off control, using full load switching. * Motor speed control and the single phase motor. * Motor control using a line voltage magnetic starter or relay. * Motor control using a low voltage magnetic starter or relay. * Motor control using push button controllers with and without interlocks. * Wiring split-phase (single phase) hermetic compressors. * Split-phase compressors; current relay starting, with an without a capacitor.

Motor-driven rotating machines have inherent risks of injury. This device should be operated only in the company of professional training mentors or experienced industrial maintenance personnel.
This device has been designed for professionals for use under controlled circumstances for training only. DAC assumes no liability for injury resulting from the use or misuse of this product.