Technical
Specifications
9
Item Description Connection Size
1 DHW Out 22mm compression
2 T & P valve connection
1
/2" BSPF
3 Boiler return tapping 22mm compression
4 Secondary return tapping 22mm compression
5 Boiler dual thermostat pocket -
6 Boiler flow tapping 22mm compression
7 Auxiliary (Solar) heat source
return tapping
22mm compression
8 Auxiliary (Solar) heat source dual
stat pocket (for dual stat only)
-
9 Cold water inlet 22mm compression
10 Auxiliary (Solar) heat source
flow tapping
22mm compression
11 Immersion heater c/w control
& limit thermostat (factory fitted)
1
3
/4" BSPF
Item Description Connection Size
12 Immersion heater c/w control &
limit thermostat (factory fitted)
1
3
/
4
" BSPF
13 Pressure reducing valve - 3 bar -
14 Balanced cold supply connection 22mm compression
15 Expansion relief valve - 6 bar 15mm compression
16 Temperature & Pressure relief
15mm compression
valve - 90°C/7 bar
17 Tundish 15/22mm compression
18 Discharge pipe
(not supplied with cylinder)
-
19 Mains water supply pipe
(not supplied with cylinder)
-
20 Drain cock
(supplied with cylinder)
-
Note:
Pipework between items 15 and 16 not supplied with cylinder.
1
13
14
15
16
17 17
1819
20
2
4
7
8
9
10
11
12
1
13
14
15
16
1819
20
2
3
4
5
6
7
11
9
10
8
Figure 2-4: DuoWave direct solar cylinders Figure 2-5: DuoWave indirect solar cylinders
2.5 Connections and Controls
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