13
A
Minimum
80 mm Head
Hose
Retaining
Ring
Warning
pipe
B
B
Vent
90
o
Cylinder Feed
Cold Pump Feed
30
o
–60
o
A
Warning pipe
Cistern
Minimum
1.0 m Head
25 mm
minimum
Minimum
22 mm
D.H.W.
60
o
C
Hot
Supply
Isolating Valve
Other Hot Draw Offs
Vent
Pipe
Isolating Valves
missing
Other Cold
Draw Offs
Cold
Supply
Hot
Supply
Vent
Pipe
High-level
Hot Feed Pipe Run
Hose retaining
ring missing
Strained Hose
*
*
*
*
Side
Entry
Boss
This layout is
not
suitable
for the Mira Extreme.
*Incorrect supply
connections
Cistern
Other Hot
Draw Offs
Incorrect Installation
Correct Installation
4. Installation Diagrams
To prevent operational difficulties, the feed from the cylinder should be as illustrated
below. Side entry cylinder bosses are not recommended because:
•
A drop in cylinder water level could expose a top entry immersion element if
fitted.
•
Air-in-water solution gathers at the edge of the cylinder and in the centre, during
the heating process before travelling up the vent.
D.H.W.
60
o
C
A high level hot feed pipe run as illustrated below will result in air locking and should
be avoided.
Summary of Contents for Extreme Thermostatic
Page 42: ...Notes...
Page 43: ...Notes...
