9
1000
1450
2000
400
500
800
STANDING HEAT LOSS
NOMINAL
CAPACITY
(LITRES)
PER DAY
(kWh/24h)
PER YEAR
(kWh/24h)
1250
2500
3.60
2.14
4.50
1642
1314
781
3.33
1215
4.17
2.74
4.30
1.72
627
1000
1522
1569
Table 5: Standing heat-loss
Table 6: Indirect coil kW ratings
1000
1450
2000
400
500
800
NOMINAL
CAPACITY
(LITRES)
1250
2500
PRIMARY FLOW RATE l/min
15
30
60
28.7kW
41.8kW
55.8kW
31.3kW
52.7kW
76.9kW
29.4kW
43.6kW
59.7kW
126.4kW
32.9kW
51.4kW
76.5kW
35.0kW
63.6kW
97.9kW
91.7kW
132.2kW
61.2kW
30.1kW
98.4kW
40.2kW
86.4kW
37.5kW
COIL
SURFACE
AREA
2m²
7.5m²
3m²
5m²
Table 7: Pressure drop across coils
1000
1450
2000
400
500
800
NOMINAL
CAPACITY
(LITRES)
1250
2500
PRIMARY FLOW RATE l/min
15
30
60
0.02bar
0.04bar
0.32bar
0.01bar
0.08bar
0.44bar
0.02bar
0.04bar
0.32bar
0.01bar
0.08bar
0.44bar
0.01bar
0.06bar
0.25bar
0.01bar
0.06bar
0.25bar
0.01bar
0.07bar
0.30bar
0.01bar
0.07bar
0.30bar
Testing is carried out to BS EN12897:2006
Primary flow rates are based on a flow temperature of 80°C +/- 2°C
1000
1450
2000
400
500
800
NOMINAL
CAPACITY
(LITRES)
1250
2500
PRIMARY FLOW RATE l/min
15
30
60
80 min
48 min
32 min
55 min
38 min
28 min
43 min
29 min
21 min
91.min
59 min
39 min
112 min
62min
40min
225 min
124 min
62 min
180 min
99 min
48 min
130 min
72 min
50 min
Table 8: Indirect heat-up times (based on a 45°C temperature rise)
Technical data
