PROGRAMMING
Determining If You Have A 740 Or 760 Control
If you are unsure of your control model, simply remove the
cover and disconnect the controller module from the control
valve. On the back of the control valve is a silver label that will
show your model number and version revision.
Pentair Water USA
Glendale, WI Operations
Model
740
12 V/
60 Hz/
4W
VERSION 1.02
WO#4340000
Ser. No:
740090052683-3
®
Serial number with date code
Model number:
either 740, 740C or 760, 760C
Figure 16
General 700 Series Instructions
Power Loss Memory Retention
The 700 Series controllers feature battery-free time and
date retention during the loss of power. This is designed to
last a minimum of 8 hours depending on the installation.
The controller will continue to keep time and day in dynamic
memory while there is no AC power.
The controller will not track water usage on volumetric
demand controls in the event of a power failure.
All programmed parameters are stored in the 700 Series static
memory and will not be lost in the event of a power failure.
These settings are maintained separately from the time and
day settings.
Motor
The 700 series controller uses a standard 12-volt AC motor
that works with either 50 Hz or 60 Hz. The same motor is
used worldwide and does not need to be changed for different
power conditions.
Power
700 Series controllers are available in two power
configurations:
1. The North American model requires 60 Hz input. The
controller will display USA units when power is first applied.
2. The World model accepts either 60 or 50 Hz input and will
automatically adjust measurement units when power is
first applied.
Information entered or calculated by the controller is stored in
two different ways.
A static memory will store:
Media volume
Regenerant setting
Time of regeneration
Days between regeneration
Filter mode
A dynamic memory with 8 hour retention will store:
Current day of week
Running clock
NOTE:
Water flow to the valve can be turned on or bypassed
when the controller is powered up for the first time.
Variable Reserve Function
The 700 Series metered-demand volumetric controllers (760
and 760C) are designed to have a variable reserve feature. This
feature automatically adjusts the reserve to the end-user’s
water usage schedule.
A variable reserve saves salt and water by only regenerating
when absolutely necessary, and ensures enough soft water for
typical high-water usage days.
Each day of regeneration the controller reviews the last
four weeks of water usage for the same day of the week to
determine if the remaining capacity is adequate for the next
day of the week. If the remaining capacity is not adequate, it
will initiate an automatic regeneration.
Display Icons 700 Controller
PM
MIN
KG
x2
Time & Day
Regen Time & Day
Salt
SU MO TU WE TH FR SA DAYS
x100
P
H
C
Capacity
Hardness
1
10
8
9
7
6
5
4
3
2
11
18
19
17
16
15
14
13
12
20
21
23
22
25
24
Figure 17
NOTE:
In normal operation and during programming, only a
few of the icons will actually be displayed.
1. Days of the week. The flag immediately below the day will
appear when that day has been programmed as a day the
system should regenerate (used with 7-day
timer programming).
2. See #3
3. This cursor is displayed when the days between
regeneration are being programmed (used with .5 to 99 day
regeneration programming).
4. One of these cursors will be displayed to indicate which day
will be programmed into the controller.
5. "PM" indicates that the time displayed is between 12:00
noon and 12:00 midnight (there is no AM indicator). PM
indicator is not used if clock mode is set to 24-hour.
6. When "MIN" is displayed, the value entered is in
minute increments.
7. When "Kg" is displayed, the value entered is in kilograms
or kilograins.
8. Four digits used to display the time or program value. Also
used for error codes.
9. Colon flashes as part of the time display. Indicates
normal operation.
10. Locked/unlocked indicator. In Level I programming this
is displayed when the current parameter is locked-out.
It is also used in Level II programming to indicate if the
displayed parameter will be locked (icon will flash) when
controller is in Level I.
AUTOTROL
®
740/760 Control 255 & Performa Series Valves (268, 268FA) Service Manual
•
19
