Bell & Gossett 10-001-278 XLS Integrated Pump Controller - Manual (Page 10)

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Figure 1 6 : Manual on/off
b. The PERCENT SPEED displays the current set
speed.
By tapping , an Enhanced Screen shown in
Figure 17 will appear and allow for manual control
of the pump speed and status.
Figure 1 7 : Manual Pump Control Screen
ALTERNATION SET UP
The default alternation sequence is set from the factory to
alternate the pumps every time a pump is turned off by the
system. The control will automatically select the pump with
the lowest number of run-hours every time a pump is
staged on/off.
By tapping [ALTERNATION] an enhanced screen shown
in Figure 18 will appear that allows the modification of
the alternation sequence for the station.
Figure 1 8 : Default Alternation Screen
The Alternation screen will allow the user to force
alternation of a given pump during a particular time of
day.
a. Enables forced alternation for given pump group
based on scheduled parameters in remaining
fields. Leaving this unchecked will disable the
forced alternation based on time of day. The
pumps will still alternate as they turn on and off
due to demand.
b. Sets the time for forcing alternation.
c. This section will default to the “unchecked”
position as shown. By ”checking” one of these
boxes, you will be forcing that pump to be the lead
pump when alternation occurs. Only one box
needs to be checked. If multiple boxes are
checked then the first checked pump from the right
will always be the lead pump.
d. Sets the day in which the system will force
alternation
a
b
d
c