Toyotomi KURO Mini Service Manual page 34

Table 4. Resistance Table of Temperature and Humidity Sensor and
Ambient Temperature Sensor (100K)
Resistance
Temp.
( )
kΩ
o
( C)
-20 926
-18 829.26
-16 743.64
-14 667.69
-12 600.20
-10 540.14
-8 486.60
-6 438.81
-4 396.11
-2 357.92
Table 5.Calculation method for added refrigerant amount
Added refrigerant amount= extension length of liquid pipe × added refrigerant amount for liquid
pipe/meter
Note: When the connection pipe is more than 10m, 5ml refrigeration oil should be added for
each 5m extension length
Diameter of connection pipe
Liquid pipe (mm)
Φ6
Φ6 or Φ9.52
Φ12
Φ16
Φ19
Φ22.2
Diameter of connection pipe
Liquid pipe (mm)
Φ6
Φ6 or Φ9.52
Φ12
Φ16
Φ19
Φ22.2
70
Resistance
Temp.
o
( C)
0
2
4
6
8
10
12
14
16
18
Added refrigerant amount for R22, R407C, R410A and R134a
Gas pipe(mm)
Φ9.52 or Φ12
Φ16 or Φ19
Φ19 or Φ22.2
Φ25.4 or Φ31.8
--
--
Added refrigerant amount for R32
Gas pipe(mm)
Φ9.52 or Φ12
Φ16 or Φ19
Φ19 or Φ22.2
Φ25.4 or Φ31.8
--
--
Temp.
( )
kΩ
o
( C)
357.92 20
293.06 22
265.56 24
240.87 26
218.68 28
198.73 30
180.77 32
164.59 34
150.01 36
136.85 38
Cooling only (g)
Cooling only (g)
Resistance
( )
kΩ
124.96
114.22
104.51
95.71
87.74
80.52
73.95
67.99
62.57
57.64
Added amount of refrigerant
Heat pump (g)
15
15
30
60
250
350
Added amount of refrigerant
Heat pump (g)
12
12
24
48
200
280
Resistance
Temp.
( )
kΩ
o
( C)
40 53.14
42 49.04
44 45.30
46 41.88
48 38.75
50 35.88
52 33.26
54 30.85
56 28.64
58 26.61
20
50
120
120
250
350
16
40
96
96
200
280