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1. Wire the power source to P4 as shown in either Figure C-1 or C-2 on page C-2.
Note:
The master clock is shipped set up for 120Vac operation. To wire it for 220/240Vac,
change the jumper settings as shown in Figure C-2.
—WARNING—
DO NOT turn on AC power, and keep the
power/relay unit’s toggle switch OFF until you
complete the rest of the wiring in this section.
—WARNING—
Applying 220/240Vac power to a system not
set up for that voltage level can severely
damage the electronic parts.
24A715/24A715M Master Clock Installation Manual
1-9
Figure 1-5
Master Clock Terminal Blocks