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12
SEQUENCE FLOW CHARTS (MACHINES BEFORE MAY2006)
12.1
TIMER WIRING SCHEMATIC
(See Fig. 9-1 in next page)
The cycle timer is comprised of 5 sections (M1 to M5). Each one has a 3 position micro switch (line
/normally closed /normally open) and 2 drive motors (run/cycle and rapid advance/start ).
M1:
this is the (
ON)
cycle micro, and stays activated throughout the completion of the cycle. (90/ 180
/ drain). The M-1 line in (
pu
) wire comes from the press valve (P1) and feeds the (
r
) normally closed
position to the start switch as well as the (
pk
) to normally open position on (M1) and line in to ( M2/
M3 / M5 ). Also the cycle light and timer (run) motor is fed via this line.
Note: the (
pk
) to timer run-motor runs from M1 thru thermo-stop.
M2:
Wash sequence micro.
In this sector the (
pk
) line feed supplies the normally open position (
gy
)
line to selector position (# 1 & # 2). Pump motor (MBL) is energized upon activation of the micro thru
position (#1a) down to the motor. Drain pump (BD) is energized upon activation of the micro thru
position (#2a) down to the pump.
In the normally close position the (
y
) will feed press valve (P2) for drain.
Note: position (1a) also feeds M4 to be discussed later.
M3: the rinse sequence micro.
In this sector the (
pk
) line feed supplies the normally open (
w
)
position to the fill valve. Upon activation the water valve is energized for 15 seconds of rinsing.
M4: thermo-stop sequence micro.
This sector is fed from the selector position (# 1a) and supplies
the thermo-stop thru the normally open (
w
) in sector M4 to the booster relay (
bl
/
or
) to (
or
) in
thermo-stop.
Note: Thermo-stop, in series with booster relay, is insuring a high – temp rinse and food
safety guidelines.
M5: Fast advance motor sequence.
This sector is fed from (
pk
) (M1/M2/M3) to the normally open
position (
or
) to selector position (#3 to #3a) to advance motor.
12.2
START SWITCH
(See Fig. 9-2 in next page)
Once the machine completes its heating cycle you are ready to run the wash. Pressing the start rocker
switch will momentarily activate the timer’s advance motor activating the M1 sector of the timer, and
thus starting the selected (90 or 180) wash cycle. This is also the cycle light which will be lit
throughout the duration of the cycle.
