Heatcraft Refrigeration Products 25001501 Installation & Operating Instructions Manual page 6

ROOM TEMPERATURE CONTROL (Cont'd.)
• Another method of setting the room set-point is to use the Beacon board thermostat pot. If a value other
than that available by using a fixed resistor is required, the pot on the Beacon board can be used. First,
you must discard the fixed resistor. Then, using a digital ohmmeter, measure the resistance between the
"X" and "200K" as indicated in the illustration below. Use a screwdriver to turn the thermostat pot until the
resistance value is obtained for the desired room temperature (according to Table 1). Install the jumper
(supplied in the bag) across the terminal marked "X" when finished.
• The Beacon Smart Controller. See Beacon Smart Controller Installation & Operating Instructions (Part
#25004101) for more details.
Carbon Film Fixed Resistor selections that will control the room temperature at the approximate temperatures
shown. These values are also to be used for setting the Beacon board thermostat.
Application
Low Temperature
Electric Defrost
Medium Temperature
Electric Defrost
Medium Temperature
Air Defrost
BEACON CONTROLLER
TABLE 1
Temperature F
-25
-20
-15
-10
-5
0
20
25
30
35
40
45
50
55
60
6
*Ohms
182K
150K
120K
100K
85K
70K
30K
25K
20K
15K
10K
8K
5K
2K
0K