Bosch KBR42-3A Installation And Maintenance Instructions For Contractors

Faults
Greenstar FS/Combi FS – 6 720 810 590 (2020/04)
78
17.4 Check sensor values
17.4.1 Outdoor temperature sensor (available as accessory)
Table 42 Resistance table outdoor temperature sensor
17.4.2 Additional supply temperature limiter
Table 43 Resistance table supply temperature limiter
17.4.3 Supply temperature sensor, DHW temperature sensor,
external supply temperature sensor
Table 44 Resistance table NTCs
17.4.4 Replacement code plug
Table 45 Code plugs for all appliances
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
Temperature ( °F) °C
Measuring 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
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
Appliance Order number
KBR16-3A NG 8 714 432 501 0
KBR16-3A LPG 8 714 432 506 0
KBR21-3A NG 8 714 432 528 0
KBR21-3A LPG 8 714 432 529 0
KBR28-3A NG 8 714 432 502 0
KBR28-3A LPG 8 714 432 507 0
KBR35-3A NG 8 714 432 503 0
KBR35-3A LPG 8 714 432 508 0
KBR42-3A NG 8 714 432 504 0
KBR42-3A LPG 8 714 432 509 0
KWB28-3A NG 8 714 432 520 0
KWB28-3A LPG 8 714 432 521 0
KWB35-3A NG 8 714 432 524 0
KWB35-3A LPG 8 714 432 525 0
KWB42-3A NG 8 714 432 500 0
KWB42-3A LPG 8 714 432 505 0

Bosch KBR42-3A Specifications

General

Brand	Bosch
Model	KBR42-3A
Category	Boiler
Language	English