Emerson Series 386 User Manual download pdf (Page 5)

INSTALLATION (continued)

1 --- 2

Functional Test

The Functional Test consists of three checks: manual

operation, voltage checks, and electrical operation.

Do these checks in the order presented to avoid

damaging the non–automatic transfer switch.

Read all inst ructions on the Wiring Diagram and labels

affixed to the automatic transfer switch. Note the control

features that are provided and revi ew their operation

before proceeding.

1 – Manual Operation Test

A maintenance handle is provided on the Transfer Switch

for maintenanc e purpos es only

. Manual operation of the

transfer switch should be checked before it is energized

(operated electrically).

Do not manually operate the transfer switch

until both power sources are disconnected:

open both circuit breakers.

1. After deenergizing both power sources, open the

enclosure door. Locate and the mainte nance handle

on the left side of the transfer swi tch frame. See

Figure 1–2.

2. Gras p the attached maintenan ce han dle and turn it

with thum b and fingers as shown to manu all y operate

it. The maintenance handle turns the opposite direc-

tion of the weig ht. Move it up or down as shown to

manu all y oper ate the transfer switc h. I t shoul d operate

smoothly w ithout any binding. If it does not, check for

shipping damage or c onstruction debris.

3. Return the transfer switch to the Norm al position.

Note: If Normal and Emergency connectio ns are

reversed this operation is also reversed.

Now continue to 2–VoltageCheckson next page.

maintenance

handle

With ALL POWER OFF grasp

maintenance handle and turn it

quickly with your thumb and fingers.

weight marked N (normal)

and E (emergency)

floating

weight

P osition of the transfe r switch is indi cate d here

Figure 1–2. Maintenance handle and positions.

1 2 3 4 5 6 7 8 9 10 11 12

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Emerson Series 386 User Manual Page 5

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