Hoshizaki MWH KM-515MAH ユーザーズマニュアル
14
II. Sequence of Operation and Service Diagnosis
A. Sequence of Operation Flow Chart
1. "E" and "G" Control Board without Harvest Pump Timer Operation
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
icemak
er
. 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
ev
apor
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 icemak
er 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
FS
–fl
oat s
witch
HGV
–hot g
as v
al
ve
L
LV
–liquid line v
al
ve
PM
–pump mot
or
WV
–inlet w
at
er v
al
ve
• Maxim
um inlet w
at
er v
al
ve time:
6 min.
• Maxim
um har
vest time:
20 min.
FS
chec
k
1 t
o 3-min.
har
vest
timer
in contr
ol
(S4 dip s
witch
1 & 2)
"E" and "G" Contr
ol Boar
d
W
ithout Har
vest P
ump
Timer Oper
ation 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)
FS
in contr
ol
4.
P
ump-Out Cy
cle
• F
act
or
y set f
or e
ver
y
10th c
ycle
(e
xcept KM
-51
5M_H)
(S4 dip s
witch 5 & 6)
• P
ump mot
or st
ops f
or
2
sec., then r
ev
er
ses
for 1
0/20 sec.
(S4 dip
switch 3 & 4)
WV
ener
giz
ed
FS
open
Comp
ener
giz
ed
FMR
ener
giz
ed
HGV
ener
giz
ed
WV
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
(1 t
o 3 min.).
FS
open
Comp
contin
ues
FMR
contin
ues
FM
ener
giz
ed
L
LV
ener
giz
ed
PM
ener
giz
ed
HGV
de-ener
giz
ed
WV
de-ener
giz
ed
FS
closed
Comp
contin
ues
FMR
contin
ues
HGV
ener
giz
ed
WV
ener
giz
ed (KM-320M_H S4 dip
s
witch 3 & 4)
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
L
LV
de-ener
giz
ed
FS
chec
k
St
ar
tup
If
FS
is open, C
omp st
ops and c
ycle r
etur
ns t
o 1
-min.
fi
ll.
5-min.
minim
um
fr
eez
e timer in
contr
ol
FS
closed
FS
opens or
fr
eez
e timer
ter
minat
es
Shutdo
wn and R
estar
t
See ne
xt pa
g
e.