IB70-8671
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Instructional Booklet
Effective: July 2008
Page
17
O & M Manual for the EGS AutomaticTransfer Switch
with RTC-50 Control and Integral Loadcenter - 100 Amp
Step 1:
Turn the Generator Start select to “OFF” before attempt-
ing to replace the RTC-50 Controller. Ensure all sources of
power are removed.
Step 2:
Disconnect the J1, J2, J3, J4, and J6 plugs from the con-
troller (see Figure 14).
Step 3:
Disconnect the wires connected to J7 and J8.
Step 4:
Remove the four (4) screws located at the corners of the
controller that secure it to the power panel. Remove the
controller (see Figure 14).
Figure 14. Removing the Controller Board
.
Step 5:
Align the new controller with the mounting holes. Secure
the new controller board using the existing hardware.
Tighten the screws.
Step 6:
Connect the J1, J2, J3, J4, and J6 plugs to their original
receptacles.
Step 7:
Reconnect the wires to J7 and J8.
Step 8:
Reapply power to the transfer switch.
Step 9:
Place the generator control selector switch in the “AUTO”
position after the controller has been replaced. (The Gen-
erator may start but will shut down with in 5 minutes.)
Test the system for proper functionality.
7.4.1.2 100 A Neutral Bar
Figure 15. 100 A Neutral Bar.
Step 1:
Turn the utility (Source 1) power off and turn the genera-
tor (Source 2) control selector switch to the “OFF” posi-
tion before attempting to replace the neutral bar.
Step 2:
Disconnect all wire cables from the neutral bar.
Step 3:
Remove the two screws in the black base using a blade
screwdriver or 0.375 in. socket or nut driver. Remove the
strap with a common straight blade screw driver and then
remove the neutral bar.
Figure 16. Replacing the 100 A Neutral Bar.
Step 4:
Mount the neutral bar to the base plate using the hard-
ware supplied.
Step 5:
Reattach the strap to the new neutral bar.
Step 6:
Reconnect all wire cables to the neutral bar.
Step 7:
Apply utility (Source 1) power and place the generator
control selector switch in the “AUTO” position after the
neutral bar has been replaced. Test the system for
proper functionality.
CONNECTORS
MOUNTING
SCREWS
J1-J4
J6
J7
J8
NEUTRAL BARS
SCREWS
