Mitsubishi PUHZ-SW75VHAPUHZ-SW100VHAPUHZ-SW100YHAPUHZ-SW120VHAPUHZ-SW120YHAPUHZ-SW75VHA-BSPUHZ-SW100VHA-BSPUHZ-SW100YHA-BSPUHZ-SW12 - Page 45

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<Thermistor feature chart>
Low temperature thermistors
• Thermistor <Liquid> (TH3)
• Thermistor <2-phase pipe> (TH6)
• Thermistor <Ambient> (TH7)
0: 15 k"
10: 9.6 k"
20: 6.3 k"
25: 5.2 k"
0: 180 k"
25: 50 k"
50: 17 k"
70: 8 k"
90: 4 k"
30: 4.3 k"
40: 3.0 k"
Thermistor R0 = 15 k" ± 3%
B constant = 3480 ± 2%
R
t =15exp{3480(
273+t
–
273
)}
1
1
Thermistor R50 = 17 k" ± 2%
B constant = 4150 ± 3%
Rt =17exp{4150(
273+t
–
323
)}
1
1
Thermistor R120 = 7.465 k" ± 2%
B constant = 4057 ± 2%
R
t =7.465exp{4057(
273+t
–
393
)}
1
1
Medium temperature thermistor
• Thermistor <Heat sink> (TH8)
(SW75V, SW100/120Y only)
20: 250 k"
30: 160 k"
40: 104 k"
50: 70 k"
60: 48 k"
70: 34 k"
80: 24 k"
90: 17.5 k"
100: 13.0 k"
110: 9.8 k"
High temperature thermistor
• Thermistor <Discharge> (TH4)
• Thermistor <Comp. surface> (TH34)
0
10
20
30
40
50
-20 -10 0 10 20 30 40 50
Temperature (:)
Resistance (k")
200
150
100
50
0
25 50 75 100 125
Temperature (:)
Resistance (k")
500
400
300
200
100
0
25
50 75 100 120
Temperature (:)
Resistance (k")
OCH533D