H33.REV

MOTOR CONTROLLERS

NOTE: FINAL COPY: JANUARY, 1987.

NOTE: CONTROLLERS ARE NORMALLY PART OF HVAC WORK. FOR DEVIATION, GROUP ENGINEERING DIRECTOR APPROVAL IS REQUIRED. THIS SECTION SHALL BE REVIEWED BY THE ELECTRICAL DEPARTMENT

Part 1 -	GENERAL

1)	WORK INCLUDED

A.	Work in this Section includes the providing of labor, materials, equipment and services necessary for a complete and safe installation in accordance with the contract documents and all applicable codes and authorities having jurisdiction for the following

1.	Individually mounted motor controllers, except as noted

2.	Controller types, as noted.

B.	Locations are diagramatic; coordinate with motor and space conditions

C.	Nameplates shall indicate horsepower and equipment controlled, including system, equipment number and area served

2)	RELATED WORK AND REQUIREMENTS

A.	Requirements of GENERAL CONDITIONS, DIVISION NO.1 and Section GENERAL PROVISIONS FOR HEATING, VENTILATING AND AIR CONDITIONING WORK apply to all work in this Section

NOTE: EDIT TO SUIT PROJECT REQUIREMENTS. INCLUDE ONLY SECTIONS DIRECTLY AFFECTING WORK OF THIS SECTION

B.	Related work in the following Sections:

1.	CHILLED WATER SYSTEM.

2.	HOT WATER SYSTEM.

3.	FAN COIL SYSTEM.

4.	REFRIGERATION PLANT (Centrifugal Units).

5.	REFRIGERATION PLANT (Absorption Units).

6.	PACKAGED RECIPROCATING WATER CHILLERS (Water Cooled).

7.	CONDENSER WATER SYSTEM (Packaged Cooling Towers).

8.	AIR HANDLING SYSTEM EQUIPMENT.

9.	MECHANICAL VENTILATING SYSTEMS.

10.	MOTORS.

11.	AUTOMATIC CONTROLS SYSTEM.

12.	-----.

3)	REFERENCE STANDARDS

A.	Published Specifications' standards, tests or recommended methods of trade, industry or governmental organizations apply to work in this Section

B.	Comply with all applicable national, state and local codes and refer to Section GENERAL PROVISIONS FOR HEATING, VENTILATING AND AIR CONDITIONING WORK for additional Reference Standards

4)	QUALITY ASSURANCE

A.	The installation shall be in accordance with NEMA, IEEE and ANSI Standards

B.	Refer to Section GENERAL PROVISIONS FOR HEATING, VENTILATING AND AIR CONDITIONING WORK for Guarantee and other Quality Assurance requirements

5)	SUBMITTALS

A.	Submit shop drawings, including catalog cuts and wiring diagrams, for motor controllers

Part 2 -	PRODUCTS

1)	BASE BID MANUFACTURERS: Cutler-Hammer, Square D, Allen-Bradley, Westinghouse, General Electric, Clark and Furnas, Klockner-Moeller

2)	MOTOR CONTROLLERS

NOTE: COVERS MOST CONTROLLERS; SPECIFY SPECIAL REQUIREMENTS AND ENCLOSURES. DUE TO CYCLING AND MAGNETIC VIBRATION, MATCHING METALS ARE REQUIRED FOR TERMINALS

A.	Type: All controllers shall be the full voltage non-reversing type unless otherwise noted

B.	Enclosures shall be NEMA general purpose, except as noted.

C.	Components:

NOTE: DUE TO CYCLING AND MAGNETIC VIBRATION, MATCHING METALS ARE REQUIRED

1.	Terminals shall be copper for copper conductors and aluminum for aluminum conductors

2.	Provide overload protection in each phase leg with reset in enclosure

3.	Pilot lights shall be 6 volt incandescent lamps, of approved color. Provide candelabra base receptacle with transformer for lamps and positive indication for motors with local disconnect switches

4.	Switches shall be horsepower rated, external padlocking type

NOTE: FOR FUSED SWITCH COMBINATION CONTROLLERS.

5.	Fuses shall be similar to Bussmann:

PEAK

a.	Fusetron.

b.	Lo-Peak.

PEAK

c.	Hi-Cap.

6.	Auxiliary relays shall supplement auxiliary contacts in controllers. Provide minimum 10 watt coil and 2 normally open, 2 normally closed contacts, in addition to contacts required for controls specified

NOTE: USE FOR OVER 400 FOOT REMOTE CONTROL RUNS.

a.	Provide auxiliary relays with step-up auxiliary transformer where required, for remote control operation over 400 feet from controllers

NOTE: USE WHERE EXCESSIVE STARTING AND STOPPING MAY OVERHEAT MOTOR AND SET UP SURGE CURRENTS DUE TO MOTOR INTERLOCKING

b.	Provide auxiliary relays for automatically operated motors over 40 hp with adjustable time delay set to prevent restarts until motor has come to a complete stop

c.	Provide auxiliary relays for automatically operated motors, over ------ hp on emergency supply with: adjustable time delay relay to delay restart on normal power failure

D.	Manual type: Provide toggle switches with overload protection and manual automatic control with run/auto selector switch

E.	Magnetic type:

OIL

a.	shall be minimum 10 watt, 110 to 125 volt operating

b.	shall be minimum 10 watt, 200 to 230 volt operation

OIL

1.	Contacts: Provide main line and minimum 2 normally open, 2 normally closed amp auxiliary

2.	Provide control transformer for motors over 120 volts, to step down control voltage to 120 volts; with fuse and ground connection on low voltage side. Size in accordance with control circuit devices and control circuit length

3.	Provide manual control with momentary contact push buttons, red pilot light and low voltage protection

4.	Provide manual-automatic control with HOA selector switch, red and green pilot lights and low voltage release. Wire safety controls common to manual and automatic control

3)	CONTROLLER TYPES

A.	Controller types shall be similar to Cutler-Hammer, of catalog numbers specified, and modified as noted. Coordinate controller and auxiliaries with motors supplied

NOTE: SPECIFY OTHER THAN UNFUSED SWITCHES FOR MAGNETIC COMBINATION CONTROLLERS WHERE REQUIRED PAR 1. FOR MANUAL OR AUTOMATIC OPERATION WITH INLINE CONTROL DEVICES, SINGLE PHASE MOTORS: CHECK USE OF MAGNETIC CONTROLLERS FOR REMOTE CONTROL OF MOTOR

1.	Provide manual single speed type A controller, 2 pole manual type, similar to Cat. No. 9101 with overload protection, pilot light, plus run/auto selector switch for automatic operation

2.	Provide manual two speed type A-1 controller, 2 speed, similar to Cat. No. 9106, with FAST-SLOW-OFF selector switch, overload protection for each speed, 2 pilot lights, plus run/auto selector switch for automatic operation full voltage non-reversing single speed type

3.	Provide full voltage non-reversing single speed type B controller, similar to Cat. No. A30, with combination unfused disconnect switch and across-the-line magnetic starter, reset button and red and green indicating lights overload protection and START-STOP pushbuttons, or HOA selector switch, as required

NOTE: SELECT EITHER 1 OR 2 WINDING - COORDINATE WITH MECH DEPT.

4.	Provide full voltage non-reversing two speed type B-1 controller similar to Cat No. A700, with combination unfused disconnect switch and across the line magnetic starter, 2 speed - 1 winding, 2 speed - 2 windings, with FAST-SLOW-STOP pushbuttons, decelerating relays for automatic high to low speed operation, overload protection for each speed, and reset button, red, green and amber indicating lights

NOTE: FOR REVERSING MOTORS.

5.	Provide full voltage reversing Type B-2 controller, similar to Type B-1, with time delay relays for automatic reversing

TYPE

6.	Provide star-delta type C controller, reduced inrush, closed transition, star-delta type, similar to Cat. No. A490, with combination unfused disconnect switch and magnetic starter, reset button and red and green indicating lights, overload protection and START-STOP-pushbutton or HOA selector switch, as required

7.	Part winding type C controller, reduced inrush, part winding type, similar to Cat. No. A460, with combination unfused disconnect switch and magnetic starter, with reset button and red and green indicating lights, overload protection and START-STOP pushbutton, or HOA selector switch, as required

8.	Provide auto transformer type C controller, reduced inrush, autotransformer, closed transition type, similar to Cat. No. A400, with combination unfused disconnect switch and magnetic starter, -----steps, -----percent taps, reset button and red and green indicating lights, overload protection and START-STOP pushbutton or HOA selector switch as required

NOTE: FILL IN PERCENT OF NORMAL INRUSH.

9.	Provide primary resistance type C controller, reduced inrush, primary resistance, closed transition type, similar to Cat. No. A430, with combination unfused disconnect switch and magnetic starter, starting steps to limit inrush to ----- percent of normal, reset button and red and green indicating lights, overload protection and START-STOP pushbutton or HOA selector switch as required

YPE

NOTE: FOR REMOTE MOTOR OPERATION.

10.	Type D: Provide pushbutton station, similar to Catalog No. 10250T, with START-STOP pilot light, lockout provision and oiltight

NOTE: HOA SWITCHES CANNOT OPERATE IN PARALLEL WITH EACH OTHER.

11.	Type D-1: Provide HOA selector switch station, similar to Catalog No. 10250T, with HOA selector switch, pilot lights, lockout provision and oiltight

Part 3 -	EXECUTION

1)	INSTALLATION

NOTE: EDIT FOR WALL MOUNT OR FREE-STANDING TYPE.

A.	Determine exact controller locations. Mount on walls, columns or angle iron framework as indicated. For free-standing type, mount on concrete foundations over floor channels. Provide angle iron framework and floor channels

2)	TESTS

A.	Perform tests to demonstrate that controllers are operational and functioning in accordance with the manufacturer's recommendations and the contract documents