APPL
IA
N
C
E
IN
FOR
M
AT
ION
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH
18/25kW
69
30
1
4
2.65
-
18
1.2
40
40
10
22
22
15
22
1
1
21.5
230
50
240
55/81
55/72
5
92
105
110
<100
90.1
20
20
177
4
TECHNICAL DATA
TECHNICAL DATA
8-716-106-252a (03.05)
Central Heating
Primary water capacity (total)
litres
Maximum static head
metres
Minimum static head
metres
Available pump head (20°C difference)
metres water
Max. permissible sealed system operating pressure
bar
Flow restrictor
colour
Domestic Hot Water
Maximum flow rate (±15%)
litres/min
Minimum inlet pressure (dynamic) for maximum flow rate
bar
Maximum hot water temperature rise for 90 litres draw off (@18 litres per min)
°C
Flue
Exit flue gas mass flow
kg/hr
Pipework connections
Fuel line (compression)
mm
CH flow
mm
CH return
mm
Water main inlet
mm
DHW outlet
mm
CH vent (optional)
inch BSP
CH drain
inch BSP
Condensate (polypropylene)
mm
Electrical
Electrical power supply voltage
AC...V
Frequency
Hz
Max. power consumption
W
Thermostats
CH control thermostat range (cut in/cut out)
°C
DHW control thermostat range (cut in/cut out)
°C
CH & DHW control thermostat differential
°C
Boiler high limit thermostat set point
°C
Boiler manual reset overheat thermostat set point
°C
Flue reset overheat thermostat set point
°C
General Data
Maximum hearth temperature
°C
SEDBUK (Band A)
%
Appliance protection rating (with programmer blanking plate fitted)
IP
Appliance protection rating (with fascia programmer fitted)
IP
Weight (excluding packaging)
kg
DESCRIPTION
UNITS
