Bosch Greenstar, Installation And Service Instructions Manual

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80 | Faults
Greenstar 6 720 806 992 (2015/03)
17.4 Check sensor values
17.4.1 Outdoor temperature sensor
17.4.2 Additional supply temperature limiter
17.4.3 Supply temperature sensor, External supply temperature
sensor, DHW tank temperature sensor, DHW temperature
sensor
17.5 Replacement code plug
Temperature °F ( °C )
Testing tolerance

10% Resistance [

]
– 4 ( – 20) 2,392
3 ( – 16) 2,088
10 ( – 12) 1,811
17 ( – 8) 1,562
24 ( – 4) 1,342
32 (0) 1,149
39 (4) 984
46 (8) 842
50 (10) 781
59 (15) 642
68 (20) 528
77 (25) 436
Table 40 Resistance table outdoor temperature sensor
Temperature °F ( °C)
Testing tolerance

10% Resistance [

]
32 (0) 33,555
50 (10) 21,232
68 (20) 13,779
86 (30) 9,128
104 (40) 6,205
122 (50) 4,298
140 (60) 3,025
158 (70) 2,176
176 (80) 1,589
194 (90) 1,177
212 (100) 886
Table 41 Resistance table supply temperature limiter
Temperature °F ( °C)
Testing tolerance

10% Resistance [

]
68 (20) 14,772
77 (25) 11,981
86 (30) 9,786
95 (35) 8,047
104 (40) 6,653
113 (45) 5,523
122 (50) 4,608
131 (55) 3,856
140 (60) 3,243
149 (65) 2,744
158 (70) 2,332
167 (75) 1,990
176 (80) 1,704
185 (85) 1,464
194 (90) 1,262
203 (95) 1,093
212 (100) 950
Table 42 Resistance table NTCs
Appliance Order number
ZBR16-3A NG 8 714 43 2 501 0
ZBR16-3A LPG 8 714 43 2 506 0
ZBR21-3A NG 8 714 43 2 528 0
ZBR21-3A LPG 8 714 43 2 529 0
ZBR28-3A NG 8 714 43 2 502 0
ZBR28-3A LPG 8 714 43 2 507 0
ZBR35-3A NG 8 714 43 2 503 0
ZBR35-3A LPG 8 714 43 2 508 0
ZBR42-3A NG 8 714 43 2 504 0
ZBR42-3A LPG 8 714 43 2 509 0
ZWB28-3A NG 8 714 43 2 520 0
ZWB28-3A LPG 8 714 43 2 521 0
ZWB35-3A NG 8 714 43 2 524 0
ZWB35-3A LPG 8 714 43 2 525 0
ZWB42-3A NG 8 714 43 2 500 0
ZWB42-3A LPG 8 714 43 2 505 0
Table 43 Code plugs for all appliances