Hoshizaki KM-280MAF-E Service Manual page 32

2) Defrost Timer
No adjustment is required under normal use, as the Defrost Timer is adjusted to the
suitable position. However, if necessary when all the ice formed on the Evaporator does
not fall into the bin in the harvest cycle, adjust the Defrost Timer to a longer setting by
adjusting the Dip Switch (No. 1 & 2) on the Controller Board.
Dip Switch
No. 1
OFF
ON
OFF
ON
3) Drain Timer
The Drain Timer is factory-adjusted, and no adjustment is required.
Dip Switch
No. 3
OFF
ON
OFF
ON
T1: Time to drain the Water Tank
T2: Time to restrain defrost completion
SETTING
Dip Switch
No. 2
OFF
OFF
ON
ON
SETTING
Dip Switch
No. 4
OFF
OFF
ON
ON
TIME
60 seconds
90 seconds
120 seconds
180 seconds
TIME
T1
10 seconds
10 seconds
10 seconds
20 seconds
32
T2
150 seconds
180 seconds
120 seconds
180 seconds