6
315
A
354 - indirect
B
HOT OUTLET
T&P VALVE
COLD INLET
PRIMARY RETURN
PRIMARY FLOW
25°
45°
30°
45°
595
Ø 550
306 - direct
Fig. 4 General dimensions
Notes:
1. Indirect cylinders tested in conformance with BS EN 12897:2006
2. Heat up time from cold through 45°C, with a primary flow rate 15ltrs/min at 80°C +/- 2°C.
3. Direct heating times assume use of lower element only, from cold, through 45°C.
Table 2: Dimensions and performance
Type
Model
Reference
Dimensions (mm)
Primary Flow
(ltrs/min @80°C
+/- 2°C)
Coil Rating
(kW)
Heat-up Time
(mins)
Hot Water
Capacity (ltrs)
(volume of water
drawn off >40°C)
A
B
Indirect
120zi
930
615
15
12.5
29
104
150zi
1114
800
15
12.5
37
138.5
170zi
1240
925
15
15
35
156.5
210zi
1498
1184
15
15
43
196
250zi
1752
1378
15
18
43
227
300zi
2067
1693
15
19
49
242.5
Direct
120zd
930
615
121
104
150zd
1114
800
152
138.5
170zd
1240
925
173
156.5
210zd
1498
1184
215
196
250zd
1752
1378
257
227
300zd
2067
1693
310
242.5
