23
Control Board (CB) Setting Menu
Category
No. Item
Range
Default
Other,
continued
22 Refrigeration Circuit Cycling when Bin Full
Selection of control to prevent ice in storage bin from
melting in bin control cycle (by operating refrigeration
unit).
SETTING CHANGE IS INEFFECTIVE.
On=1; Off=0
0
Fan Motor
30 Type
Selection of fan motor type. When set to “0”, unit operates
as water-cooled model.
0=water-cooled
1=small / medium
2=large
4=new small
4
31 Target Rotation Speed
Normal fan motor rotation speed set with the first two
digits for 4-digit numbers and the first digit for 3-digit
numbers.
e.g. 1600 r/min = "16", 800 r/min = "8"
3 to 20 (x 100
rotations)
(1 increments)
14
32 Low Speed Rotation Temperature
Condition to decrease target fan motor rotation speed.
When ambient temperature reaches down to low speed
rotation temperature (CB Setting 32), target rotation
speed is decreased by low speed rotation rate (CB Setting
33).
10 to 45°C
(1°C increments)
25
33 Low Speed Rotation Rate
Percentage against target rotation speed (CB Setting 31).
20 to 100%
(00=100)
(1% increments)
100
34 High Speed Rotation Temperature
Condition to increase target fan motor rotation speed.
When ambient temperature reaches up to high speed
rotation temperature (CB Setting 34), target rotation
speed is increased by high speed rotation rate (CB
Setting 35).
50 to 60°C
(1°C increments)
60
35 High Speed Rotation Rate
Percentage against target rotation speed (CB Setting 31).
100 to 120%
(00 to 20 displayed)
(1% increments)
100
Water Regulating
Valve
36 Water Regulating Valve Error Detection Temperature
Thermistor temperature (water regulating valve outlet)
in case of water regulating valve error and cooling water
failure for water-cooled model.
DO NOT ADJUST
0 to 50°C
0=ignore
(1°C increments)
0
Pump Motor
40 Type
Selection of pump motor type.
DO NOT ADJUST
1=small
2:=medium
3=large
1
41 Target Rotation Speed
Normal pump motor rotation speed set with the first two
digits of rotation speed.
e.g. 3800 r/min = "38"
When freeze cycle integrated value against target is less
than low speed rotation condition (CB Setting 42), pump
motor operates at target rotation speed. When integrated
value is low speed rotation condition (CB Setting 42) or
higher, target rotation speed is decreased by low speed
rotation rate (CB Setting 43).
15 to 45 (x 100
rotations)
(1 increments)
32
Summary of Contents for IM-50BAA-Q
Page 52: ...51 C Wiring Diagram ...
