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INSTALLATION (continued)
1 --- 3
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 automatic transfer switch.
Read all instructions on t he Wiring Diagram and labels
affixed to the automatic transfer switch. Note the
control features that are provided and review their
operation before proceeding.
1 – Manual Operation Test
A maintenance handle is provided on the Transfer Switch
for maintenanc e purposes 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. Locateandthemaintenance
handle on the left side of the transfe r switch frame.
See Figure 1–4.
2. Grasp the attached maintenance handle and turn it
with thum b and fingers as shown to manuall y operate
it. The maintenance handle turns the opposite
dire ctio n of the weig ht . Move it up or dow n as
show n to manual ly operate the transfer switc h. I t
should operate s moothly without any binding. If it
does not, c heck for shipping damage or construction
debris.
3. Return the transfer switc h to the Norm al position .
Note: If Normal and Emergency connections 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
weight
P osition of the tr ansf er switch i s i ndi cate d here
Figure 1–4. Maintenance handle and positions.