Instruction manual

31
A INSTALLATION INSTRUCTIONS
4.7 Water Connections for Model BMS
Each heater contains a kit of accessories to help the installer make the water connections.
An example of these connections and all the accessories supplied with the heater is shown
on the drawing below:
Pos. Description
1) 1/2" Gasket
2) 1/2" to 1" Connection
3) 1" Gasket
4) Domestic cold water connection
5) Domestic hot water connection
6) ASME T-P relief valve (not
provided)
7) Heating return connection
8) Heating supply connection
9) ASME pressure relief valve
10) Connections (not provided)
11) Domestic drain cock (not
provided)
12) Heating drain cock (not
provided)
13) Mixing valve (not provided)
14) By-pass valve (not provided)
15) Flow selector
16) Ball valve (not provided)
17) Fitting 1/2" NPT/Copper (not
provided)
18) Gas supply (3/4)
19) Cold water inlet
20) Hot water outlet
21) Central heating return
22) Central heating supply