15
8.
If you have a Break-Before-Make bypass switch, go to step 10.
If you have a Make-Before-Break bypass switch, make sure the AC voltages from the UPS output and
the AC line input are in phase.
•Measure the AC voltage between the following points on the bypass switch terminal strip.
These measurements must not be more than 100 VAC; if they are, call Best Power's
Worldwide Service or your local Best Power office.
External Bypass Switches:
BPE-15, -16
7 to 11__________ VAC
8 to 12__________ VAC
9.
Measure the AC voltage between the following points on the bypass switch terminal strip. This reading
must not be more than 1 VAC. If it is, call Best Power's Worldwide Service or your local Best Power
office.
External Bypass Switches:
BPE-15, -16
6 to 10 __________ VAC
10.
Now, turn the bypass switch to "LINE."
11.
Using the AC voltmeter, make sure that the voltage to your protected equipment is correct.
12.
Verify the voltage at the Load Distribution Panel (see the wiring diagram) or the UPS-protected
receptacles for your equipment.
13.
Next, turn the bypass switch to "UPS" and measure the voltage to your protected equipment once more
(either at the Load Distribution panel or the UPS-protected receptacles for your equipment). Make sure
this voltage is correct.
14.
Turn the bypass switch back to "LINE."
15.
If all of your readings in the voltage and phase check are acceptable, follow steps a through d below:
a.
Put the bypass switch cover back on and tighten the screws securely.
b.
Turn the B610 On/Off switch off.
c.
Turn off the DC switch (if your model has one).
d.
Turn the AC Disconnect Switch off. If you will not be starting the UPS now, you can leave the
bypass switch in the "LINE" position and switch on your protected equipment. Your equipment
will be receiving direct AC input power. It will not be protected until you startup the UPS and
turn the bypass switch to "UPS."
You have finished installing B610. To startup your B610, see Section 400 on page 14.
