Hussmann ASCS, Installation And Operation Manual

Page: 7 / 40

Rev.0303
7
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
AM– –:– –
will appear in display.
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.
Ref.
P
ro
g
.
Day
h
m
±
1 h
r.
Mo Tu We Sa Fr Th Su
GRÄSSLIN
On Off
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!)