Mitsubishi PUMY-71VM - Page 88

88
<Thermistor feature chart>
Low temperature thermistors
Saturation temperature of suction pressure thermistor (TH2)
Pipe temperature thermistor (TH5)
Outdoor temperature thermistor (TH6)
Thermistor R0 = 15k' ±3%
B constant = 3480K ± 2%
R
t =15exp{3480(
273+t
–
273
)}
0: 15k'
10: 9.6k'
20: 6.3k'
25: 5.2k'
0: 180k'
25: 50k'
50: 17k'
70: 8k'
90: 4k'
30: 4.3k'
40: 3.0k'
1
1
Thermistor R50 = 17k' ±2%
B constant = 4170K ± 3%
R
t
=17exp{4170(
273+t
–
323
)}
1
1
Medium temperature thermistor
Radiator panel temperature thermistor (THHS)
0
10
20
30
40
50
<Low temperature thermistor>
-20 -10 0 10 20 30 40 50
Temperature (:)
Resistance (K")
200
<Medium temperature thermistor>
150
100
50
0
25 50 75 100 125
Temperature (:)
Resistance (K")
200
<Medium temperature thermistor>
150
100
50
0
25 50 75 100 125
Temperature (:)
Resistance (K")
0: 180k'
25: 50k'
50: 17k'
70: 8k'
90: 4k'
Thermistor R50 = 17k' ±2%
B constant = 4150K ± 3%
Rt =17exp{4150(
273+t
–
323
)}
1
1
Medium temperature thermistor
Radiator panel temperature thermistor (THHS A/B)
PUMY-125VMA PUMY-125MVA
1
PUMY-71VM PUMY-125VM PUMY-125YM
PUMY-71VM
1 PUMY-125VM1 PUMY-125YM1
PUMY-71VM2 PUMY-125VM2 PUMY-125YMA
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