OSO HOTWATER Delta Twincoil DTC 200, User Manual

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3.7 General layout
Ref no. Key Part No.
1 Flow 3/4” BSP Solar
2 Return 3/4” BSP solar
3 Flow 3/4” BSP Solar
4 Return 3/4” BSP solar
5
Pressure Reducing Valve Multibloc
3/4” (adjustable) includes Item 4
355030
6 Expansion relief valve (6 bar) PREL355030
7
Temperature and Pressure Relief
Valve
550853
8 Tundish 219005
9 Immersion Heater 71242
10 Immersion heater control thermo-
stat
80314
11 Digital Dual Thermostat 80345
12 Cold feed tube (not supplied, see
pt. 3.7.2 Cold feed tube)
13 Hot Water Outlet 3/4” BSP
14 Elbow/Drain Cock
250445
15 Discharge Pipe (not supplied)
Ref no. Key Part No.
16 Motorized valve (not factory fitted) 92000
17 Expansion vessel AX18, AX24
18 Secondary Return
Vessel
size
Length of tube (ø28) mm
Expansion vessel
pre charge / size
200 980 3 bar / 18 litre
250 1200 3 bar / 24 litre
300 1450 3 bar / 24 litre
3.7.2 Cold feed tube
3.7.1 Reference chart