Specification Zwb 37-2 - Bosch ZSB 30-2 Installation And Servicing Instructions

3.11 Specification ZWB 37-2 ...

Max. heat output (P ) 40/30 °C
max
Max. heat output (P ) 50/30 °C
max
Max. heat output (P ) 80/60 °C
max
Max. gas consumption (Q
Min. heat output (P ) 40/30 °C
min
Min. heat output (P ) 50/30 °C
min
Min. heat output (P ) 80/60 °C
min
Min. gas consumption (Q
Max. heat output (P ), DHW
nW
Max. gas consumption (Q
Gas supply rate
Natural gas H (gross heating value 37.8 MJ/m
Butane/propane (gross heating value 50 MJ/kg)
Permissible gas supply pressure
NG
LPG
Expansion vessel
Pre-charge pressure
Total capacity
DHW
Max. DHW flow rate
Outlet temperature range
Max. cold water inlet temperature
Max. permissible water supply pressure
Min. inlet pressure
Specific flow rate acc. to EN 625 (D)
Calculation values for calculating cross-section to EN 13384
Flue gas mass flow rate, max./min. rated
Flue gas temperature 80/60 °C max./min. rated
Flue gas temperature 40/30 °C max./min. rated
Residual pump head
CO at max. rated output
2
CO min. rated output
2
Flue gas rating group to G 636/G 635
NO class
x
Condensate
Max. condensate quantity (t
pH level, approx.
Table 6
), central heating
max
), central heating
min
), DHW
nW
3
)
= 30 °C)
R
ZWB 37-2 ...
Unit Natural gas
kW 32.1
kW 31.8
kW 30.0
MJ/h 123.4
kW 10.6
kW 10.5
kW 9.4
MJ/h 39.1
kW 37.0
MJ/h 147.7
3
m /h 3.9
kg/h -
kPa 1.1 - 3.0
kPa -
kPa 75
l 10
l/min 13.0
°C 40 - 60
°C 60
kPa 1000
kPa 20
l/min 16.9
g/s 16.2/4.5
°C 83/58
°C 60/35
Pa 80
% 9.7
% 9.1
G /G
61 62
5
l/h 2.7
4.8
Product details | 17
Propane Butane
32.1 36.6
31.8 36.3
30.0 34.2
123.4 140.5
15.7 17.9
15.5 17.7
13.9 15.9
57.9 65.9
37.0 42.2
147.7 168.5
- -
2.9 3.4
- -
2.75 2.75
75 75
10 10
13.0 13.0
40 - 60 40 - 60
60 60
1000 1000
20 20
16.9 16.9
15.3/6.5 15.3/6.5
83/58 83/58
60/35 60/35
80 80
10.8 12.2
10.2 11.5
G /G G /G
61 62 61
5 5
2.7 2.7
4.8 4.8
6 720 644 143 (2010/09)
62