Service manual

CONTROL
The Culligan Medallist Series
™
water softener uses the same power valve control as in our Culligan
®
Mark 89/812
models. It can be programmed as either a time clock or Soft-Minder
®
meter model. Each model has its own pro-
gramming parameters which can be set to control the operation and regeneration of the system. These functions are
outlined in Table 1.
TABLE 1
Function Time Clock Soft-Minder Meter
Time of Day YES YES
Time of Regen. YES YES
Salt Dosage YES YES
Backwash Time YES YES
Brine Rinse Time YES YES
Gallons Capacity/Regen. Interval YES YES
Forced Regen. Interval NO YES*
Lock/Unlock display YES YES
* When Time Clock Backup is set to "ON".
CIRCUIT BOARD
The AccuSoft
™
microprocessor circuit board controls every function of the Culligan Medallist Series water
softener. This board has several unique features which allows it to perform a variety of functions. Familiarization of
the board is essential for a thorough understanding of the softener.
The AccuSoft circuit board has a set of default settings that the microprocessor will reset to whenever a meter is
attached or removed from the control. Table 2 is a list of the default microprocessor settings.
It is recommended to always disconnect the power from the circuit board prior to replacing meter cable so that the
programmed settings are not lost.
TABLE 2
1 Time of Day 12:00 P.M.
2 Time of Regeneration 2:00 A.M.
4 Salt Dosage 10 lbs.
5 Backwash Time 10 min.
6 Brine Rinse 71 min.
8 Regeneration Interval 3 days or 870 gallons
10 Display Lock Out Disabled
AUXILIARY CONNECTIONS
Refer to Figure 1 for all circuit board connections. Power terminals are located along the lower section of the circuit
board. The connection marked 'MAIN' is for the main wire harness. The Soft-Minder connection is located in the
upper left side of the board. Next to the meter connection is a connection marked 'BATT', which is for the optional
battery back-up. All terminals are clearly marked to ease installation.
Familiarization
4 CULLIGAN MEDALLIST SERIES