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HWS TMV blending valve controller
A Salamander approved HWS Blending valve controller will protect booster pumps in systems
where the temperature of the stored hot water is uncontrolled or crudely controlled via boiler
thermostat only – see below.
Usable capacity
minimum 50 galls
per bathroom
Vent
and other
services
Salamander approved HWS TMV Blending
valve controller is factory set at 55 - 60°C
MAX
60°C
Figure 13: HWS blending valve controller to pump
Figure 14: Pump fitted between shower valve and shower head
As a non-preferred method,
a single
positive head pump
may be fitted
between the shower valve and the shower
head.
•
The shower head and all pipework
must be positive head and allow a
natural flow of 2 litres per minute of
mixed water.
•
The hot water connection must be a
top or side enty flange or secondary
return connection on the cylinder
•
Negative head pumps must not be
used
•
Supplies to shower should be no
longer than 5m in 22mm pipe(2m of
15mm)
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