Bosch Worcester 15SBi Installation And Servicing Instructions page 5

Table 5
PRIMARY WATER CAPACITY
MAXIMUM MAINS INLET PRESSURE
MAXIMUM CENTRAL HEATING FLOW TEMPERATURE
MAXIMUM CENTRAL HEATING SYSTEM SET PRESSURE
MINIMUM CENTRAL HEATING SYSTEM SET PRESSURE
OUTPUT TO CENTRAL HEATING
NOx CLASSIFICATION FOR BOTH 15 & 24SBi
SEDBUK Rating
Table 6
GAS SUPPLY SYSTEM - BASED ON NG (G20)
TOTAL LENGTH OF GAS SUPPLY PIPE (COPPER) metres
3 6
GAS DISCHARGE RATE - PRESSURE DROP mbar. m
8.7 5.8
18.0 12.0
Table 7
ABOVE APPLIANCE FLUE ELBOW
IN FRONT OF APPLIANCE
BENEATH APPLIANCE
RIGHT AND LEFT HAND SIDE
Refer to Section 6.
Table 8
TOTAL SYSTEM VOLUME litres
INITIAL
PRESSURE bar 0.5
1.0 72
1.5 39
PERFORMANCE SPECIFICATIONS
9 12
3 /h PIPE DIAMETER mm
4.6 3.9
9.4 8.0
CLEARANCES (mm)
INSTALLATION
30
600
200
10
SYSTEM CAPACITY
INITIAL CHARGE PRESSURE bar
1.0
92
53
NATURAL GAS (G20)
LPG - PROPANE (G31)
22
28
SERVICE
30
600
200
10
1.5
N/A
64
5
2.0 litres
10 bar
85°C (nom)
2.5 bar
0.5 bar
15SBi 6.0 - 15.0kw 24SBi 15.0 - 24.0kw
15SBi 6.0 - 15.0kw 24SBi 15.0 - 24.0kw
Class 2
15SBi - Band D - 79.1% 24SBi - Band D - 78.3%