Worcester 12/18 User Manual

TECHNICAL DATA
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR HEATSLAVE EXTERNAL 12/18-18/25-25/32
8 716 113 389d (03/2010)
6
TECHNICAL DATA
Central Heating
Primary water capacity (total) litres
Maximum static head metres
Minimum static head metres
Available pump head (20°C difference) at max. output metres water
Max. permissible sealed system operating pressure bar
in accordance with WRAS guidelines
Flow restrictor colour
Domestic Hot Water
Optimum flow rate (±15%) litres/min
Minimum inlet pressure (dynamic) for optimum flow rate bar
Maximum hot water rise for 90 litres draw off (@optimum flow rate) °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
Combined feed and expansion and open vent (optional) 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
Tank 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 IP
Weight (excluding packaging) kg
DESCRIPTION UNITS 12/18 18/25 25/32
APPLIANCE
INFORMATION
69
30
1
4.7
2.5
Lime
15
1.5
40
29
10
22
22
15
22
1
21.5
230
50
240
55/81
55/72
5
92
105
94
110
<100
90.2
45
195
69
30
1
4.0
2.5
—
18
1.2
40
40
10
22
22
15
22
1
21.5
230
50
240
55/81
55/72
5
92
105
94
110
<100
90.1
45
195
72
30
1
4.2
2.5
—
22
0.9
40
51
10
28
28
15
22
1
21.5
230
50
263
55/81
55/72
5
92
105
94
110
<100
90.3
45
206
8 716 113 389d 30/3/10 14:01 Page 6

Worcester 12/18 Specifications

General

Brand	Worcester
Model	12/18
Category	Boiler
Language	English