Emerson 386 - Manual
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Table of Contents:
- Page 3 – Supporting Foundation; Outline and Mounting Diagram; NOTICE; Insulator Backing Piece for 260 and 400 A; Be sure that the insulator piece is behind the 260; Controller Ground
- Page 4 – INSTALLATION; Line Connections; Wiring Diagram; Testing Power Conductors; Table A. Tightening torque values for bolted joints.; Bolt Diameter
- Page 5 – – Manual Operation Test; for maintenance purposes only; – Voltage Checks; OPEN
- Page 6 – Use extreme caution when using a meter to; – Electrical Operation; Close the transfer switch enclosure door and; Transfer Control
- Page 7 – Controller Code 1; Section 5, Optional Accessories; for additional control functions.; Refer to; Transfer To Emergency; Note
- Page 8 – SECTION 3; PREVENTIVE MAINTENANCE; Checklist for Yearly Inspection; Hazardous voltage capable of causing shock,; REPLACEMENT PARTS; Disconnecting the Plugs
- Page 9 – MANUAL LOAD TRANSFER; Section 1; Manual Operation; Section 5; PROBLEM
- Page 10 – SECTION 4 ADJUSTMENTS; Sensor Adjustments; How to Change a Setting
- Page 11 – SECTION 5 OPTIONAL FEATURES; MOTOR LOAD TRANSFER; LOAD DISCONNECT FEATURE
- Page 12 – INDEX
381333–086 D
50 Hanover Road, Florham Park, New Jersey 07932–1591 USA
For sales or service call 1 800 800–2726 (ASCO) www.ascopower.com
ASCO POWER TECHNOLOGIES CANADA PO Box 1238, 17 Airport Road, Brantford, Ontario, Canada N3T 5T3
Operator’s
Manual
Series 386
Non–Automatic Transfer Switches
E–design 260–400 A, G–design 1000–3000 A
DANGER is used in this manual to warn of a
hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING is used in this manual to warn of a
hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION is used in this manual to warn of a
hazardous situation which, if not avoided, could
result in minor or moderate injury.
G–design 1000–1200 A sizes
Refer to the outline and wiring drawings provided with
the ASCO Series 386 N–ATS for all installation details.
Rating Label
Each non–automatic transfer switch contains a rating
label to define the loads and fault circuit withstand /
closing ratings. Refer to the label on the transfer switch
for specific values.
Do not exceed the values on the rating label.
Exceeding the rating can cause personal injury or
serious equipment damage.
Identification Label
The identification label on the Transfer Switch includes
data for each specific ASCO Series 386. Use the switch only
within the limits shown on identification label.
An experienced licensed electrician must install the
Non–Automatic Transfer Switch (N–ATS).
TABLE OF CONTENTS
section-page
INSTALLATION
1-1
. . . . . . . . . . . . . . . . . . . . . . . .
Mounting and Line Connections
1-1
. . . . . . . . .
Functional Test
1-2, 1-3
. . . . . . . . . . . . . . . . . . . . .
SEQUENCE OF OPERATION
2-1
. . . . . . . . . . .
TESTING & SERVICE
3-1
. . . . . . . . . . . . . . . . . .
Preventive Maintenance
3-1
. . . . . . . . . . . . . . . .
Transfer Test
3-1
. . . . . . . . . . . . . . . . . . . . . . . . . .
Trouble-Shooting
3-2
. . . . . . . . . . . . . . . . . . . . . .
ADJUSTMENTS
4-1
. . . . . . . . . . . . . . . . . . . . . . .
Sensor Adjustments
4-1
. . . . . . . . . . . . . . . . . . .
How to Change a Setting
4-1
. . . . . . . . . . . . . . .
OPTIONAL FEATURES
5-1
. . . . . . . . . . . . . . . . .
Motor Load Transfer
5-1
. . . . . . . . . . . . . . . . . . .
Load Disconnect
5-1
. . . . . . . . . . . . . . . . . . . . . .
INDEX
back of manual
. . . . . . . . . . . . . . . . . . . . .
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Summary
SECTION 1 INSTALLATION 1 --- 1 ASCO 386 Non–Automatic Transfer Switches (N–ATSs) are factory wired and tested. Field installation simply requires mounting and connection of service cables, andauxiliary control circuits (if required). Remove the Shipping Skid (large N–ATSs) For large N–ATSs, open the...
INSTALLATION (continued) 1 --- 2 Line Connections A Wiring Diagram is furnished with the ASCO 386 (separate from this manual). Refer to this drawing. Allwiring must be made in accordance with the National Electrical Code and local codes. De–energize the conductors before making any line or auxiliary...
INSTALLATION (continued) 1 --- 3 Functional Test The Functional Test consists of three checks: manual operation, voltage checks, and electrical operation. NOTICE Do these checks in the order presented to avoid damaging the non–automatic transfer switch. 1 – Manual Operation Test A detachable mainten...
