OSO 20 RD - Page 2

-2-
General Layout Fig:1
1
2
3
4
5
6
7
7A
8
9
Return 3/4'' BSPF
*
Flow 3/4'' BSPF*
Pressure Reducing Valve
includes item 4
Check and Expansion Valve
Temperature and Pressure
Relief Valve
Tundish
Immersion Heater
Thermostat Immersion Heater
Thermostat Cylinder
Cold Feed Tube
(Not Supplied See Table 2)
Hot Water Outlet 22mm
510511
510505
550803
219002
71259
80020
80030
10
11
12
13
14
15
16
17
18
*
Flexible Hose
Secondary Return 1/2'' BSPF
Fit 1/2''Fx1/2''Mx15mm Tee piece (Not supplied)
Commissioning Valve / Fitting
1/2'' MI Drain Cock
Elbow / Drain Cock
Cable Entry
Electrical Box
Tee Piece
Discharge Pipe (Not supplied)
Motorised Valve * (Not Factory Fitted)
Indirect Only
202108
250440
250445
250006
92000
KEY Part No KEY Part No