Bosch KBR42-3A Installation And Maintenance Instructions For Contractors

Information about the appliance
Greenstar FS/Combi FS – 6 720 810 590 (2020/04)
18
3.11 Technical data - Heating boiler KBR 16-3
Table 4
Input / Output Unit NG LPG (Propane)
Max. input rate 180/79 °F (82/26 °C) BTU/hr (kW) 57,200 (16.8) 54,400 (16.5)
Max. output rate 104/86 °F (40/20 °C) BTU/hr (kW) 54,900 (16.1) 55,300 (16.2)
Max. output rate 122/86 °F (50/30 °C) BTU/hr (kW) 54,300 (15.9) 54,600 (16.0)
Max. output rate 176/140 °F (80/60 °C) BTU/hr (kW) 50,800 (14.9) 51,200 (15.0)
Max. input rate 180/79 °F (82/26 °C) BTU/hr (kW) 12,900 (3.8) 21,500 (6.3)
Max. output rate 104/86 °F (40/20 °C) BTU/hr (kW) 12,600 (3.7) 21,500 (6.3)
Max. output rate 122/86 °F (50/30 °C) BTU/hr (kW) 12,600 (3.7) 21,500 (6.3)
Max. output rate 176/140 °F (80/60 °C) BTU/hr (kW) 11,300 (3.3) 19,400 (5.7)
Gas connection value
Natural gas - H
s
=1,010 BTU/ft
3
(37.3MJ/m
3
)ft
3
/hr (m
3
/h) 56 (1.6) -
Liquid Propane Gas - HD-S = 2,500 BTU/ft
3
(37.3MJ/m
3
)ft
3
/hr (m
3
/h) - 22 (0.6)
Permissible gas inlet pressure
NG in. W.C. (mbar) 3.5 - 10.5” (8.7-26.1) -
LPG (Propane) in. W.C. (mbar) - 8-13” (19.9-32.3)
Flue gas
Flue gas mass flow at maximum/minimum nominal output gps 6.8/1.7 6.7/2.6
Flue gas temperature 176/140 °F (80/60 °C) at max./min. nominal output °F ( °C) 136/133 (58/56) 136/133 (58/56)
Flue gas temperature 104/86 °F (40/30 °C) at max./min. nominal output °F ( °C) 99/88 (37/31) 99/88 (37/31)
CO
2
at maximum nominal output % 9.4 11.0
CO
2
at minimum nominal output % 8.6 10.4
Condensate
Maximum condensate quality (t
R
= 86 °F (30 °C)) gph (l/h) 0.32 (1.2) 0.32 (1.2)
pH level approx. 4.8 4.8
General
Voltage Vac 120 120
Frequency Hz 60 60
Max. power consumption (central heating mode) W 205 205
Max. power consumption (standby mode) W <6 <6
Sound pressure level dB (A) ≤33 ≤33
Max. supply temperature °F ( °C) 190 (88) 190 (88)
Max. permissible operating pressure (P
MS
) heating psi (bar) 30 (2.07) 30 (2.07)
Permissible ambient temperature °F ( °C) 32-122 (0-50) 32-122 (0-50)
Nominal water capacity (heating) Gall (L) 0.925 (3.5) 0.925 (3.5)
Weight (without packaging) lbs (kg) 150 (68) 150 (68)
Maximum overall dimensions W x H x D inch (mm) 21
15
/
16
x 41
1
/
4
x 21
7
/
8
557 x 1048 x 555
21
15
/
16
x 41
1
/
4
x 21
7
/
8
557 x 1048 x 555

Bosch KBR42-3A Specifications

General

Brand	Bosch
Model	KBR42-3A
Category	Boiler
Language	English