DynaGen AST2225 Installation And User Manual Download Page 3

Page: 3 / 19

Manual for AST2225 Series

Automatic

Transfer Switch

Table of Contents

GENERAL

DESCRIPTION:

1:1 Switchgear

1:1:1 Specification

1:1:2 Operation

1:2

Relay

Control

Module

1:2:1

Sensing

Adjustment

Procedure

1:2:2

System

Operation

INSTALLATION

INFORMATION:

2:1 General

2:2 Recommended Upstream Protection:

3: REPLACING PARTS

3:1 Parts List

3:2 Main Switch Removal and Replacement

3:3 Motor Removal and Replacement

3:4

Mechanical Limit Switch Adjustment

4: RECOMMENDED MAINTENANCE

5: DRAWINGS

5:1 Limit Switch Replacement

5:2 Mechanical Assembly

5:3 General Arrangement

5:4 Wiring Harness Connections

6: FIELD SET-UP:

6:1 Locking Mechanism (Enclosure)

6:2 Engine Exerciser 17

Summary of Contents for AST2225

Page 1: ...Installation and User Manual for the AST2225 3 Automatic Transfer Switch Full Version File AST2225 3rev1 6 doc May 9 2003 AST2225 Automatic Transfer Switch ...

Page 2: ...l authorization RMA number issued by the COMPANY RMA forms are available by contacting the COMPANY Limited Warranty The COMPANY DynaGen Technologies Inc warrants the product with specifications as explained herein The COMPANY shall repair or replace any defective materials or workmanship f o b the Company s factory which prove to be defective under normal and proper use within three year s from th...

Page 3: ... INFORMATION 5 2 1 General 5 2 2 Recommended Upstream Protection 6 3 REPLACING PARTS 7 3 1 Parts List 8 3 2 Main Switch Removal and Replacement 9 3 3 Motor Removal and Replacement 9 3 4 Mechanical Limit Switch Adjustment 10 4 RECOMMENDED MAINTENANCE 11 5 DRAWINGS 5 1 Limit Switch Replacement 12 5 2 Mechanical Assembly 13 5 3 General Arrangement 14 5 4 Wiring Harness Connections 15 6 FIELD SET UP 1...

Page 4: ...sing circuitry for automatic transfer of an electrical load to a stand by power supply in the event of a drop or loss of voltage of any or all phases of the normal power supply Upon the restoration of the normal supply the electrical load is automatically re transferred to the normal power supply The normally required time delay functions are all included in the Timer Module package The transfer m...

Page 5: ...ltage monitor Input voltages 10 below the set point range will cause the output contacts to de energize unit is adjustable from 190 240 VAC The adjustable drop out relay recommended for use with the AST3225 3 Automatic Transfer Switch is the Symcom 201 A ADJUSTMENT PROCEDURE Plug in the adjustable voltage monitor The monitor goes through its restart delay and the LED on the monitor flashes red and...

Page 6: ...sm has been approved for use with the following upstream protective device MANUFACTURER CLASSIFICATION AMPERE RATING CATALOG NUMBER AMP TRAP GOULD SHAWMUT CLASS J 300 A4J300 RECOMMENDED FUSE BLOCKS WITH BOX CONNECTORS FOR AMP TRAP CLASS J FUSES CATALOG NUMBER 600 VOLTS OR LESS FUSE AMPERE RATING 1 POLE 3 POLE 300 64031J 64033J ...

Page 7: ...e tightened sufficiently before re energizing the switch The following table provides suggested tightening torques Screw Size Tightening Torque in LB 4 5 6 10 8 20 10 40 1 4 90 3 8 300 NOTE For satisfactory performance the switch terminal lugs must be securely fastened to the terminal strips 90 in LB min Torque lugs screws to 200 in LB Replacement parts should be identified with reference to the P...

Page 8: ...ring pin 1 8 x1 3 8 coiled 14 Washer Nylon Shoulder 72 5 16 18 x 5 8 socket head cap screw 15 Lever Arm Angle Upper 73 Screw 10 32x1 4 SOC HD set SS 16 Lever Arm Cover Plate 74 Washer 5 16 spring lock 17 Slider Cover 76 Washer 6 spring lock SS 18 Motor Support Bracket 77 Spacer 6 32 1 1 2 aluminum 19 Pivot Support Bracket 78 Screw 1 4 20x1 flat head 20 Neutral Block Insulator 80 Washer 1 4 spring ...

Page 9: ...f and one on and that the rollers on the arm springs equally straddle the switch operating levers Tighten the pivot bracket screws equally to ensure controlled deflections of the arm springs 3 3 MOTOR REMOVAL AND REPLACEMENT Electrically isolate the transfer switch from all power sources Note the wire connections to the 12 position connector Cut the motor connection wires white and black approxima...

Page 10: ... event of replacing a limit switch for example the following procedure is recommended see diagram page 12 a Electrically isolate the transfer switch from all power sources Loosen the pivot screw and clamp screw to enable the limit switch to rotate about the pivot screw b Open the cover on the operating arm and remove the pin slider to allow the limit switch cam to be rotated manually c Insert a 0 ...

Page 11: ...e unit and requires no attention Periodically inspect all terminals load line and control and all fasteners for tightness Test the transfer switch operation upon initial installation in both the motor and manual modes Periodically check for freedom of movement of the mechanism hidden dirt or corrosion and any excessive wear on the mechanical operating parts Clean or replace parts when necessary Do...

Page 12: ...Manual for AST2225 Series Automatic Transfer Switch 12 5 1 LIMIT SWITCH ADJUSTMENT ...

Page 13: ...Manual for AST2225 Series Automatic Transfer Switch 13 5 2 AST2225 3 MECHANICAL ASSEMBLY ...

Page 14: ...Manual for AST2225 Series Automatic Transfer Switch 14 5 3 AST2225 3 GENERAL ARRANGEMENT ...

Page 15: ...Manual for AST2225 Series Automatic Transfer Switch 15 5 4 Wiring Harness Connections ...

Page 16: ...atch 3 Remove the quarter turn latch 4 From the front of the enclosure remove the quarter turn insert rubber gasket and flat washer 5 Remove the lock nut located on the back of the enclosure door 6 On the back of the enclosure door gently tap the quarter turn latch housing until it is free from the door NOTE carefully observe how the quarter turn latch housing is inserted in the door as it has to ...

Page 17: ...ise cycle or start a new program The MODE SWITCH located in the upper left corner can start the generator manually exercise the generator automatically or disable the exerciser function The push buttons below the clock display are used to program the exercise day time and duration The SKIP BUTTON is used to ignore an exercise day The RESET BUTTON initializes the time clock erasing any previous pro...

Page 18: ...y is displayed such as AM 5 00 or PM 5 00 6 Press the MINUTE button m repeatedly until the minute of the present hour is displayed such as AM 5 30 or PM 5 30 7 Move the SET switch slider to the run position The present time is displayed with the clock colon blinking in one second intervals The arrow appears continuously under the present day 8 Move the SET switch slider to the program position P i...

Page 19: ...y to Sunday inclusive All day combinations can have any combination of on off cycles Normally the exerciser time clock will only require one on off cycle once per week The programming steps given above describe how to exercise the generator once a week EXAMPLE Suppose that the desirable day and time for exercising the generator is Saturday at 5 00 AM Move the slider of the SET SWITCH to the right ...

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