Hoshizaki KM-901MWH - Manual (Page 25)

25
b) "G" Control Board: Auxiliary Code U-1 and Later
•
WV
time:
6
min.
or
the
length
of
har
vest
min
us
0
or
50 sec.
(S4 dip s
witch 7), whiche
ver is shor
ter
. DO
NO
T
AD
JUS
T S4 dip s
witch 7 on this model.
•
Maxim
um
har
vest
time:
20
min.
F/S
chec
k
1 t
o 3-min.
timer
in contr
ol
(S4 dip s
witch
1 & 2)
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
MBC
–mechanical bin contr
ol
PM
–pump mot
or
WV
–inlet w
at
er v
al
ve
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.
"G" Contr
ol Boar
d Sequence Flo
w Char
t
1.
1
-Min
ut
e
F
ill Cy
cle
Cy
cle St
eps
2.
Har
vest Cy
cle
Ther
mist
or in
contr
ol
3.
F
reez
e Cy
cle
•
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)
F/S
in contr
ol
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)
WV
ener
giz
ed
F/S
open
WV
contin
ues
Comp
ener
giz
ed
FMR
ener
giz
ed
HGV
ener
giz
ed
Ther
mist
or t
emper
atur
e
reaches 48
°F (9°C) (3.9 kΩ
or less).
Har
vest timer st
ar
ts
.
F/S
open
Comp
contin
ues
FMR
contin
ues
PM
ener
giz
ed
FMS
ener
giz
ed
L
LV
ener
giz
ed
HGV
de-ener
giz
ed
F/S
closed
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
chec
k
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
Shutdo
wn Dela
y:
•
Fill Cy
cle
–1
5 sec.
af
ter activ
ation.
•
Har
vest Cy
cle
–At the end of the har
vest c
ycle
, or up t
o 1
5 sec.
int
o the
fr
eez
e c
ycle if activ
at
ed at the end of the har
vest c
ycle
.
•
Fr
eez
e Cy
cle
–1
5
sec.
af
ter
activ
ation
if
activ
at
ed
at
least
15
sec.
bef
or
e
the
5-min.
shor
t c
ycle pr
ot
ection timer e
xpir
es
. Otherwise
, at the end
of the ne
xt har
vest c
ycle
.
Shutdo
wn
and R
estar
t
MBC Oper
ation
MBC
open
Gr
een "BC CL
OSED" LED of
f
Yello
w "BC OPEN" LED on
Yello
w "BC OPEN" LED contin
ues
.
All components de
-ener
giz
ed
5-min.
timer
in contr
ol
F/S
closed
F/S
open or fr
eez
e
timer e
xpir
es
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
pr
essing ag
ainst MBC actuat
or
paddle
. Icemak
er st
ar
ts at
"1
. 1
-Min
ut
e F
ill C
ycle
."
To 1 abo
ve
MBC
closed
Gr
een "BC CL
OSED" LED on
Yello
w "BC OPEN" LED of
f
0 or 50 sec.
PM
ener
giz
ed
WV
de-ener
giz
ed
Har
vest P
ump
Timer
KM-90
1MAH,
KM-90
1MWH,
KM-90
1MRH/3