Rev.0303

Manifold Flush System

GENERAL DESCRIPTION

The flush system generates a high pressure water stream meant to flush most residue buildup from the bottom of the manifold chamber. This is the area that residue builds and expands. Frequency of this periodic maintenance will vary depending on water mineral content and sanitary conditions.

MANUAL FLUSH SYSTEM

Water valve is located on the outside of the case, in the rear, on the left hand side as viewed from the rear.

AUTOMATIC FLUSH SYSTEM

Electrical components are located within the electrical raceway. Electrical components in this area are 115V AC. Step-down transformer is located in the wireway, and is controlled by pump switch.Water flow for flush system is rated at 0.25 GPM at 60 PSI water pressure. Flush nozzle located in the rear of the case.

BASIC SYSTEM OPERATION:

1.Filtered water is supplied to the 115V solenoid valve.

2.At a time of day determined by you, the 115V time clock will energize the solenoid for two (2) minutes.

PROGRAMMING THE TIMER

The circular keypads are positioned to provide a sequential [at for programming. Starting the Prog. button to select a program clockwise to ON/OFF, h for hour, m for minute, and finally Day to select the day for days of the week you wish the flush to operate on. If one of these selections is omitted, the control will flash when the clock or program key is depressed. The missing entry must be completed before the programming can resume.

A program consists of

1.ON/OFF

2.Hour and minute

3.Day or multiple days on which it is to occur.

Res. is the reset key and will erase the current program.

The ±h key adjusts the set clock time for daylight savings time.

Military time (24 hr clock) or 12 hour clock may be selected by pressing and holding the h key while depressing the ±h key.

A flashing light indicated a missing selection in the program or a low battery. Check to make sure the timeclock’s program is complete (ON/OFF, time, and days)

NOTE: If the h and m keys are held down longer than 2 seconds, the numbers will advance rapidly. Press and hold the (2) day during the following: (If Daylight Savings Time is In effect, press ±1h first).

1. Press the Prog. key.

1 2

4

5

6 7

will appear in display.

AM– –:–

2.Press the key between ON/OFF.The word ON will appear.

3.Press h to select hour for initial system startup.

4.Press m to select the minute the system starts up (30 for 10:30)

5.Select the days desired with the Day key.

1.If the program is to occur every day of the week, ignore Day and press Prog.key to advance to next program.

2.If specific, 7 day time control is desired, press Day and 1-5 will appear for Mon. - Fri. Pressing Day again will display 6,7 for Sat. and Sun.

6.Press the key between ON/OFF to select the cycle termination time.The word OFF will appear.

7.Press h to select hour the system terminates.

8.Press m to select the minute the system terminates.

9.Repeat with the days.

10.Press Prog. key and repeat steps 2 thru 11 for additional defrost schedules.

11.After programming press clock key to enter run

mode.

NOTE: If the days are flashing, it indicates the day of the week was not set when setting the time.The timer cannot be programmed unless the day of the week is entered.

. On

Off

±

1

Ref

 

 

h

 

 

 

r

 

Mo Tu We Th Fr Sa Su

.

 

 

h

orP .g

m GRÄSSLIN Day

START UP:

1.Manually move time clock to initiate a flush cycle.

2.Observe that flush nozzle is spraying down center of manifold chamber.

3.Set clock to correct time of day.

4.Set trip pins to the “time of day system is to flush” (NOTE:Two [2] flushes per day!)

7