Welbilt Koolaire KD0270A, Technician'S Handbook, Page: 47 / 136

Part Number STH047 Rev01 10/18 47
ENERGIZED PARTS CHART
* Condenser Fan Motor: The fan motor is wired through a
fan cycle pressure control; therefore, it may cycle on and off.
ICE MAKING SE
QUENCE OF OPERA
TION
Con
trol Boar
d R
ela
ys
Rela
y
Leng
th of Time
1
W
at
er Pump
2
Har
ves
t V
alv
e
3
Rela
y
Coil
3A
Compr
essor
3B
Compr
essor F
an
Mot
or*
Initial S
tar
t-up
1. W
at
er pur
ge
off
on
off
off
off
15 sec
onds
2. R
efrig
er
ation
Sy
st
em St
art
-up
off
on
on
on
on
5 sec
onds
Fr
eez
e S
equenc
e
3. Pr
e chill
off
off
on
on
on
30 sec
onds
4. Fr
ee
ze
on
off
on
on
on
Un
til 7 sec.
W
at
er c
on
tact
w/ice thickness
pr
obe