Technical Data - Worcester ZWBR 7-28 HE plus Installation And Servicing Instructions

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Technical data

Max. rated heat output net 40/30 °C central heating
Max. rated heat output net 50/30 °C central heating
Max. rated heat output net 80/60 °C central heating
Max. rated heat input net
Min. rated heat output net 40/30 °C
Min. rated heat output net 50/30 °C
Min. rated heat output net 80/60 °C
Min. rated heat input net
Max. rated heat output net, domestic hot water
Max. rated heat input net, domestic hot water
Maximum gas flow rate – After 10 minutes from lighting
Natural gas G20 (H = 9,5 kWh/m
iB
LPG (H = 12,8 kWh/kg)
i
Gas supply pressure
Natural gas G20
LPG
Expansion vessel
Charge pressure
Total capacity
Hot water specifications
Hot water flow rate (factory setting)
Max. hot water flow rate
Outlet temperature range
Max. permissible water supply pressure
Min. inlet pressure
Specific flow rate
Flue
Flue gas temp. 80/60 °C, rated/min. load
Flue gas temp. 40/30 °C, rated/min. load
Residual delivery pressure
(inc. pressure drop in air intake duct)
CO level at max. rated heat output
2
CO level at min. rated heat output
2
NO -class
x
SEDBUK figure, Band A
Condensate
Max. condensation rate (t
R
pH-value, approx.
General Data
Electrical power supply voltage
Frequency
Max. power consumption
Noise output level
Appliance protection rating
Max. CH flow temperature
Max. permissible operating pressure (CH)
Permissible ambient temperatures
Nominal capacity of appliance
Weight
Table 2
6 720 610 597 GB (01.07)
3
)
= 30 °C)
ZWBR 7-28 ZWBR 11-28
Units Natural gas
kW 30.1
kW 29.8
kW 28.2
kW 28.5
kW 8.4
kW 8.3
kW 7.4
kW 7.6
kW 28.2
kW 28.5
3
m /h 3.0
kg/h
mbar 20
mbar -
bar 0.75
l 18
l/min 8
l/min 14
°C 40 - 60
bar 10
bar 0.2
l/min 13.7
°C 67/55
°C 43/32
Pa 80
% 9.5
% 9.2
5
% 90.6
l/h 2.4
4.8
AC ... V 230
Hz 50
W 121
dB(A) 37
IP X4D
°C nom. 90
bar 2.5
°C 0 - 60
l 3.75
kg 53
Details of the appliance
ZWBR 11-35 ZWBR 14-35
Propane Natural gas
30.1 37.5
29.8 37.1
28.2 35.1
28.5 35.5
11.6 12.9
11.4 12.8
10.5 11.4
10.8 11.8
28.2 35.1
28.5 35.5
3.7
2.2
- 20
37 -
0.75 0.75
18 10
8 8
14 14
40 - 60 40 - 60
10 10
0.2 0.2
13.7 16.0
67/55 87/58
43/32 65/43
80 100
11.3 9.2
11.0 9.2
5 5
90.6 90.3
2.4 3.0
4.8 4.8
230 230
50 50
121 151
37 40
X4D X4D
nom. 90 nom. 90
2.5 2.5
0 - 60 0 - 60
3.75 3.75
53 53
Propane
37.5
37.1
35.1
35.5
16.2
16.1
14.3
14.8
35.1
35.5
2.5
-
37
0.75
10
8
14
40 - 60
10
0.2
16.0
87/58
65/43
100
11.0
11.0
5
90.3
3.0
4.8
230
50
151
340
X4D
nom. 90
2.5
0 - 60
3.75
53
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