Download Danfoss DHP-AX Specifications

15.2
Measurement points
Conversion table for sensors
DD When
reading the resistance of the sensors, the sensor leads must first be disconnected from the control
equipment.
Outdoor sensor
15.3
Other sensors
°C
Ohm, Ù
°C
Kiloohm,
kÙ
-30
1884
0
66,3
-25
1443
5
52,4
-20
1115
10
41,8
-15
868
15
33,5
-10
681
20
27,1
-5
538
25
22,0
0
428
30
18,0
5
343
35
14,8
10
276
40
12,2
15
224
45
10,1
20
183
50
8,5
25
150
55
7,1
30
124
60
6,0
35
103
65
5,0
40
86
70
4,2
75
3,7
80
3,1
85
2,7
90
2,3
95
2,0
1.
2.
3.
Disconnect the sensor cable at the I/O
card.
First measure the sensor including the
cable.
Then measure the sensor only.
Check points
Temperatures
Name
Values
Condensing temperature
0.5 – 1.5 °C above supply line temperature
Evaporation temperature
7 - 8 °C lower than incoming brine
Overheating
4 - 8 K temperature difference
Radiator circuit
5 - 10 K temperature difference
Overheating R407C
4K ±1 K
VMBMH302
Service – 45