Specifications

8
Diagram 3 - Schematic installation diagram showing Cold Water Combination Valve, Expansion Core Unit and positioning of cold balanced draw off
Tundish
Expansion
Vessel
Premier Plus
Systemfit
Discharge pipe to atmosphere
(See Section 3.9 “Discharge
Pipework“)
KEY MCWS Mains cold water supply
HWS Hot water service SC
Stop Cock
DOC
Drain Off Cock
Te mperature/Pressure
Relief Valve
Balanced cold water
draw off
Balanced HWS and
MCWS to bathrooms, showers,cloakrooms,
etc.
Isolating/Regulating
Valves as required
HWS supply
Expansion Core Unit (combined
Expansion Relief
Valve/Check Valve)
SC
SC
DOC
Incoming Cold
Water Main
MCWS to Kitchen (unbalanced cold
mains supply)
Cold Water Combination
Valve incorporating
Pressure Reducing Valve,
Strainer
and Check Valve
NB Expansion Valve
tapping must be blanked
off
DOCDOC
DOC