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Cont...
3 PIPEWORK CONNECTIONS
3.1
Hot/cold services:
The cold water mains supply is connected to the combination valve
via the lever isolating valve supplied, which limits incoming pressure to 3.5 bar and has
an integral NRV.
The hot water outlet pipework is connected to the outlet of the mixing valve via the
lever isolating valve supplied.
Provision should also be made in the cold services to tee/feed cold outlets prior to the
Electrastream connection.
Both of these connections are for 22 mm pipe.
3.2
Heating system:
a) The total output from the Electrastream for hot water and heating is 9 kW @ 240 V
having a maximum output of 30,000 BTU and should be sized for systems requiring
no more than this.
b) The heating system pipework is connected to the underside of the circulating pump.
The return pipework from the heating system is to be connected to the bottom of
the coil, to the short pipework that is also connected to the filling loop.
Fig. 5
Incoming
mains
supply
Hot water supply
Heating
flow
Heating
return
Fig. 6
