British Gas ICC2 combi ZWBR 11-37 ICC2, Installation And Servicing Instructions

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6 720 610 602 GB (03.02)
Details of the appliance
9
1.9 Technical data
Units
ZWBR 8-30
Natural gas
ZWBR 11-30
Propane
ZWBR 11-37
Natural gas
ZWBR 14-37
Propane
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 kW
kW
kW 32.3
31.9
30.2 32.3
31.9
30.2 39.7
39.2
37.1 39.7
39.2
37.1
Max. rated heat input net kW 30.5 30.5 37.5 37.5
Min. rated heat output net 40/30˚C
Min. rated heat output net 50/30˚C
Min. rated heat output net 80/60˚C kW
kW
kW 9.5
9.4
8.2 12.7
12.6
11.0 12.9
12.8
11.4 16.2
16.1
14.3
Min. rated heat input net kW 8.8 11.8 11.8 14.8
Max. rated heat output net, domestic hot water kW 30.2 30.2 37.1 37.1
Max. rated heat input net, domestic hot water kW 30.5 30.5 37.5 37.5
Maximum gas flow rate – After 10 minutes from lighting
Natural gas G20
(CVnet 34.02 MJ/m
3
)
m
3
/h
3.2 3.9
LPG
(CVnet 88 MJ/m
3
)
kg/h 2.2 2.7
Gas supply pressure
Natural gas G20
(CVnet 34.02 MJ/m
3
)
mbar 20 - 20 -
LPG
(CVnet 88 MJ/m
3
)
mbar - 37 - 37
Expansion vessel
Charge pressure
bar 0.75 0.75 0.75 0.75
Total capacity l 10 10 10 10
Hot water specifications
Hot water flow rate (factory setting)
l/min 8 8 8 8
Max. hot water flow rate l/min 14.0 14.0 14.0 14.0
Outlet temperature range ˚C 40 - 60 40 - 60 40 - 60 40 - 60
Max. permissible water supply pressure bar 10 10 10 10
Min. inlet pressure bar 0.2 0.2 0.2 0.2
Specific flow rate l/min 13.7 13.7 16.9 16.9
Flue
Flue gas temp. 80/60˚C, rated/min. load
˚C 78/57 78/57 87/58 87/58
Flue gas temp. 40/30˚C, rated/min. load ˚C 58/35 58/35 65/43 65/43
Residual delivery pressure
(inc. pressure drop in air intake duct) Pa 90 90 100 100
CO
2
level at max. rated heat output
CO
2
level at min. rated heat output
%
% 9.4
9.2 11.0
11.0 9.2
9.2 11.0
11.0
NO
x
-class 5 5 5 5
SEDBUK figure, Band A % 90.3 90.3 90.3 90.3
Condensate
Max. condensation rate (t
R
= 30˚C) l/h 2.6 2.6 3.2 3.2
pH-value, approx. 4.8 4.8 4.8 4.8
General Data
Electrical power supply voltage
AC ... V 230 230 230 230
Frequency Hz 50 50 50 50
Max. power consumption W 156 156 161 161
Noise output level dB(A) 39 39 41 41
Appliance protection ratingIP X4D X4D X4D X4D
Max. CH flow temperature ˚C nom. 90 nom. 90 nom. 90 nom. 90
Max. permissible operating pressure (CH) bar 2.5 2.5 2.5 2.5
Permissible ambient temperatures ˚C 0 - 50 0 - 50 0 - 50 0 - 50
Nominal capacity of appliance l 3.75 3.75 3.75 3.75
Weight kg 53 53 53 53
Table 2