Hoshizaki KM-901MWH - Manual (Page 24)

24
2. Sequence Flow Chart
a) "E" Control Board: Auxiliary Code T-0, U-0
4.
P
ump-Out Cy
cle
•
Fact
or
y
set
for
e
ver
y
10th c
ycle (S4 dip
switch 5 & 6)
•
P
ump
mot
or
st
ops
for 2
sec., then
re
ver
ses f
or 1
0/20
sec.
(S4 dip s
witch
3 & 4)
F/S
Chec
k
Components Ener
giz
ed when the Contr
ol S
witc
h is in the "W
A
SH" P
osition
The "W
A
SH" position on the contr
ol s
witch is used when cleaning and sanitizing the unit.
W
hen in the "W
A
SH" position,
po
w
er is supplied t
o the pump mot
or
. W
ith the cleaning v
al
ve closed, the cleaner and sanitiz
er fl
ow o
ver the outside of
the e
vapor
at
or plat
e assemb
ly
. W
ith the cleaning v
al
ve open, the cleaner and sanitiz
er fl
ow o
ver both the outside and the
inside of the e
vapor
at
or plat
e assemb
ly
.
Not
e:
Close the cleaning v
al
ve af
ter cleaning and sanitizing ar
e complet
e, otherwise the unit will not r
est
ar
t when the
contr
ol s
witch is placed in the "ICE" position.
Leg
end:
Comp
–compr
essor
FM
–f
an mot
or
FMR
–f
an mot
or
-r
emot
e
F/S
–fl
oat s
witch
HGV
–hot g
as v
al
ve
L
LV
–liquid line v
al
ve
TBC
–ther
most
atic bin contr
ol
PM
–pump mot
or
WV
–inlet w
at
er v
al
ve
"E" Contr
ol Boar
d Sequence Flo
w Char
t
1.
1
-Min
ut
e F
ill
C
ycl
e
2.
Har
vest Cy
cle
3.
F
reez
e Cy
cle
Cy
cle St
eps
WV
ener
giz
ed
F/S
open
F/S
closed
WV
contin
ues
Comp
ener
giz
ed
HGV
ener
giz
ed
FMR
ener
giz
ed
Ther
mist
or t
emper
atur
e
reaches 48
°F (9°C)
(3.9 kΩ or less) Har
ves
t
timer s
tar
ts
F/S
open
Comp
contin
ues
FMR
contin
ues
PM
ener
giz
ed
FM
ener
giz
ed
LL
V
ener
giz
ed
HGV
de-ener
giz
ed
WV
de-ener
giz
ed
F/S
closed
F/S
Chec
k
•
WV
time:
6
min.
or
the
length
of
har
vest,
whiche
ver is shor
ter
.
•
Maxim
um
har
vest
time:
20
min.
Ther
mist
or in contr
ol
1 t
o 3-min.
timer in contr
ol
(S4 dip s
witch 1 & 2)
•
Minim
um
fr
eez
e
time:
5
min.
•
Maxim
um
fr
eez
e
time:
fr
eez
e
timer
set
ting
(S4 dip s
witch 9 & 1
0
5-min.
timer
in contr
ol
F/S
in contr
ol
Initial st
ar
tup
begins her
e
af
ter 5
sec.
dela
y
If
F/S
is open, compr
essor st
ops and c
ycle r
etur
ns t
o 1
-Min
ut
e F
ill C
ycle
1.
Bin F
ull
Unit shuts do
wn
within 1
0 sec.
af
ter ice cont
acts
ther
most
atic b
ulb
.
Shutdo
wn
and R
estar
t
TBC Oper
ation Ice cont
acts
ther
most
atic b
ulb
2.
Icemak
er Of
f
All
components
de-ener
giz
ed.
3.
Ice Le
vel Lo
w
er
ed
Ice le
vel lo
w
er
ed.
No ice
t
ouching ther
most
atic
b
ulb
. Icemak
er st
ar
ts at
"1
. 1
-Min
ut
e F
ill C
ycle
."
TBC
closed
TBC
open
All components de-ener
giz
ed
To 1 abo
ve
Comp
contin
ues
FMR
contin
ues
HGV
ener
giz
ed
PM
de-ener
giz
es f
or 2
sec.,
then r
ev
er
ses f
or 1
0/20 sec.
FM
de-ener
giz
ed
LL
V
de-ener
giz
ed
F/S
open or fr
eez
e
timer e
xpir
es
KM-90
1MAH,
KM-90
1MWH,
KM-90
1MRH/3