Component Characteristics; Flow Temperature (Ntc) Sensor Resistances; Flue Overheat Thermostat; Overheat Thermostat - Bosch Worcester Greenstar Ri ErP + Series Installation And Maintenance Instructions Manual

OPERATIONAL FUNCTIONS
9.3

Component Characteristics

9.3.1

Flow temperature (NTC) Sensor resistances

Temperature [ °C ± 10%]
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
Table 36 Flow temperature sensor
9.3.2

Flue overheat thermostat

Normally closed thermostat Temperature [ °C] Resistance [ Ω]
Opening temperature
Close temperature
Table 37 Flue overheat thermostat
9.3.3

Overheat thermostat

Normally closed thermostat Temperature [ °C] Resistance [ Ω]
Opening temperature
Close temperature
Table 38 Overheat thermostat
9.3.4

Gas valve coil resistances

Fig. 95 Gas valve coil resistances
Position
1 Top coil
2 Bottom coil
Table 39 Gas valve coil resistances
62
Resistance [ Ω]
35,975
28,516
22,763
18,279
14,772
11,981
9,786
8,047
6,653
5,523
4,608
3,856
3,243
2,744
2,332
1,990
1,704
1,464
1,262
1,093
950
≥ 112
3,500
≤ 111
6,500
≥ 120 ≤ 50M
≤ 119
5,000
1
2
6720821670-04.1Wo
Resistance [ Ω ± 10%]
380 (342 - 418)
190 (171 - 209)
9.3.5

Code plug numbers

Gas type Appliance
Natural Gas 9Ri ErP +
12Ri ErP +
15Ri ErP +
18Ri ErP +
21Ri ErP +
24Ri ErP +
Table 40 Natural Gas code plug numbers
Gas type Appliance
LPG 9Ri ErP +
12Ri ErP +
15Ri ErP +
18Ri ErP +
21Ri ErP +
24Ri ErP +
Table 41 LPG code plug numbers
Code plug number
050
051
052
053
054
055
Code plug number
056
057
058
059
060
061
6 720 821 670 (2018/06)