12.4 Ntc Sensor Characteristics Highflow Cdi & Fs Cdi Regular Appliances - Worcester CDi Combi N.G Service Booklet

APPENDIX
12.4 NTC SENSOR CHARACTERISTICS HIGHFLOW CDi & FS CDi REGULAR APPLIANCES
Description
Primary NTC
Domestic hot water NTC
Internal heat bank NTC
Outdoor NTC
Tab. 41 Thermisters
12.4.1 SIEMENS NTC SENSOR CHARACTERISTIC
TABLE
RESISTANCE ( Ω)
>= 35975
22763
14772
9786
6652
4607
3243
2332
1703
1261
<= 949
Tab. 42 Siemens thermisters
12.4.2 ELMWOOD NTC CHARACTERISTIC TABLE
RESISTANCE ( Ω)
33242
19947
12394
7947
5242
3548
2459
1740
1256
923
Tab. 43 Elmwood thermisters
72
Supplied By www.heating spares.co Tel. 0161 620 6677
Characteristic
Siemens NTC
Elmwood NTC
Elmwood NTC
Outdoor NTC
TEMPERATURE ( °C)
0
10
20
30
40
50
60
70
80
90
100
TEMPERATURE ( °C)
0
10
20
30
40
50
60
70
80
90
12.4.3 OUTDOOR NTC SENSOR CHARACTERISTIC
TABLE
RESISTANCE ( Ω)
>= 4111
3669
3218
2775
2360
1983
1650
1363
1122
922
759
624
515
427
354
296
247
207
<= 174
Tab. 44 Outdoor thermisters
12.4.4 FLOW TURBINE HORIZONTAL
FREQUENCY (Hz)
0
7.7
69.2
104.1
140.5
176.4
Tab. 45 Flow turbine
8 716 115 748 (2009/09)
TEMPERATURE ( °C)
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
FLOW RATE (L/m)
0
1.5
10
15
20
25