Technical Data Zbr - Bosch Greenstar Series Installation And Service Instructions For Contractors

Product Description
3.11 Technical data ZBR...-3A
Input/Output
Max. input rate 180/79 °F (82/26 °C)
Max. output rate 104/86 °F (40/30 °C)
Max. output rate 122/86 °F (50/30 °C)
Max. output rate 176/140 °F (80/60 °C)
Min. input rate 180/79 °F (82/26 °C)
Min. output rate 104/86 °F (40/30 °C)
Min. output rate 122/86 °F (50/30 °C)
Min. output rate 176/140 °F (80/60 °C)
Gas connection value
3
Natural Gas – H = 1,010 BTU/ft (37.3 MJ/m
s
Liquid Propane Gas – H = 2,500 BTU/ft
D-S
Permissible inlet gas pressure
NG
LPG (propane)
Flue gas
Flue gas mass flow at maximum/minimum nominal output
Flue gas temperature 176/140 °F (80/60 °C) at maximum/minimum nominal heat
input
Flue gas temperature 104/86 °F (40/30 °C) at maximum/minimum nominal heat
input
CO at max. nominal output
2
CO at minimum nominal output
2
Condensate
Max. condensate quantity (t = 86 °F (30 °C))
R
pH level, approx.
General
Voltage
Frequency
Max. power consumption (central heating mode)
Max. power consumption (Stand-by)
Sound pressure level
Max. supply temperature
Max. permissible operating pressure (P
Permissible ambient temperature
Nominal water capacity (heating)
Weight (without packaging)
Dimensions, W x H x D
Table 3 Technical data ZBR 21-3 A...
18
3
)
3 3
(93.1 MJ/m )
) heating
MS
Unit NG
BTU/hr (kW) 79,200 (23.2)
BTU/hr (kW) 74,700 (21.9)
BTU/hr (kW) 74,000 (21.7)
BTU/hr (kW) 70,300 (20.6)
BTU/hr (kW) 24,600 (7.2)
BTU/hr (kW) 23,900 (7.0)
BTU/hr (kW) 23,900 (7.0)
BTU/hr (kW) 21,800 (6.4)
3 3
ft /hr (m /h) 78 (2.2)
3 3
ft /hr (m /h) –
in. W.C. (mbar) 3.5-10.5"
(8.7-26.1)
in. W.C. (mbar) –
g/s 9.4/3.2
°F ( °C) 145/133 (63/56)
°F ( °C) 115/90 (46/32)
% 9.4
% 8.6
gph (l/h) 0.5 (1.8)
4.8
V AC 120
Hz 60
W 205
W < 6
dB(A) ≤ 39
°F ( °C) 187 (86)
psi (bar) 30 (2.07)
°F ( °C) 32 - 122 (0 - 50)
gal (l) 0.925 (3.5)
lbs. (kg) 103.6 (47)
inch 17-21/64" × 33-15/32"13-57/64"
(mm)
ZBR 21-3 A...
LPG (propane)
77,500 (22.7)
74,700 (21.9)
74,000 (21.7)
70,300 (20.6)
40,100 (11.7)
39,900 (11.7)
39,600 (11.6)
36,200 (10.6)
–
31 (0.9)
–
8-13" (19.9-32.3)
9.2/4.8
145/133 (63/56)
115/90 (46/32)
11.0
10.4
0.5 (1.8)
4.8
120
60
205
< 6
≤ 39
187 (86)
30 (2.07)
32 - 122 (0 - 50)
0.925 (3.5)
103.6 (47)
(440 × 850 × 353)
Greenstar – 6721822579 (2021/01)