Glow-worm Energy Saver 80 - 100 and Gave Valve - Manual (Page 12)

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Diagram 4.2
Diagram 4.3
6597
MANUAL
BYPASS
VALVE
4.6 Water Treatment
For optimum performance after installation, the boiler and its
associated central heating system should be flushed in
accordance with BS7593:1992 using a cleanser such as Sentinel
X300 or X400, or Fernox Superfloc.
For long term corrosion protection, after flushing, an inhibitor
suitable for aluminium heat exchangers should be used.
Examples are Sentinel X100 and Fernox Copal.
4.7 Draining Tap
A draining tap must be provided at the lowest points of the
system, which will allow the entire system to be drained.
The flow and return isolation valves are provided with drain
points for boiler heat exchanger drainage, see diagram 8.1.
4 Heating System
BOILER
DOMESTIC
WATER
HO
T
COLD SUPPL
Y
DRAIN
POINT
'B'
'A'
FLOW CONTROL
VALVE
HEATING
CIRCUIT
RETURN
ADDITIONAL
EXPANSION
VESSEL
(if required)
OPTIONAL
BY-PASS
VALVE
OPTIONAL FILLING
ARRANGEMENTS,
SEE DIAGRAM 4.4
C
METHOD 1
METHOD 2
SUPPLY STOP
VALVE
SUPPLY
PIPE
HOSE
UNIONS
SERVICING
VALVE
TEMPORARY
HOSE
HEATING
SYSTEM
HEATING
SYSTEM
TEMPORARY
HOSE
HOSE
UNIONS
SERVICING
VALVE
SUPPLY
PIPE
SUPPLY STOP
VALVE
DOUBLE CHECK
VALVE ASSEMBLY
COMBINED
CHECK VALVE
AND VACUUM
BREAKER
C
C
Diagram 4.4
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