Emerson ADTS manual Installation Functional Test, Manual Operation Test

INSTALLATION (continued)

Functional Test

The Functional Test consists of three checks:

❐1 — Manual Operation Test, pages 1–3 through 1–6

❐2 — Voltage Checks, page 1–7

❐3 — Electrical Operation, page 1–8

Do these checks in the order presented

to avoid damaging the ATS.

Read all instructions on the Wiring Diagram and labels affixed to the ATS. Note the control features that are provided and review their operation before proceeding.

Continue to 1 – Manual Operation Test starting below.

Emergency contacts (upper shaft)

window indicators	contact
	position
O is open
	indicators
C is closed
	(right side)
Normal contacts
(lower shaft)

Figure 1-3. Contact position indicators on 150–600 amp. J–design transfer switches .

Shown with Emergency open and Normal closed.

1 – Manual Operation Test

A detachable operator handle is provided on the transfer switch for maintenance purposes only. Manual operation of the transfer switch must be checked before it is operated electrically.

Do not manually operate the transfer switch until both power sources are disconnected: open both circuit breakers.

1.Select the appropriate switch design / amp. size and follow directions for installing and using the handle:

150–1200 amp J, H–designsFig. 1-3, -4, -6 thru -11. Attach the manual handle onto the shaft hub, left side of the operator.

1600 – 3000 amp. G–design See Figures 1-5,1-12. Install the hub (with pin) onto the shaft and insert the manual firmly into the side hole in the hub. Push in or pull out hub to engage opposite source contacts.

4000 amp. F–design See Figure 1-13.

Insert the manual handle into the hole in the weight.

2.Move the handle as shown to manually operate the Transfer Switch. The switch should operate smooth- ly without binding. If it does not, check for shipping damage or construction debris. Repeat the manual operation check on the other Transfer Switch.

3.Return the transfer switch to the N (closed on normal) position. If removable, remove the maintenance handle and store it on the transfer switch in the place provided.

Emergency contacts (upper shaft)

window indicators	contact
	position
O is open
	indicators
C is closed
	(right side)
Normal contacts
(lower shaft)

Figure 1-4. Contact position indicators on 800–1200 amp. H–design transfer switches . Shown with Emergency open and Normal closed.

Emergency contacts

window	contact
indicators
	position
OPEN or
	indicators
CLOSED	(left side)
Normal
contacts

Figure 1-5. Contact position indicators on 1600–3000 amp. G–design transfer switches . Shown with Emergency closed and Normal open.

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