Salamander Pumps CT Force, Руководство по установке, Страница: 6 / 17

8 9
Commissioning
Before you finish
Fit pump inlet filters and vibration dampening feet.
It is CRITICAL to discharge water through the pump into a container using natural flow
before connecting the pump to outlet pipework in order to ensure the air has been
discharged from inlet pipework and pump chambers. This will not happen if the outlet
pipework is connected to the pump. The best method is:-
• Connect discharge pipework, not outlet pipes.
• Check that all the AV coupler isolating valves are open.
• Fill system. Check for leaks.
• DO NOT RUN PUMP DRY – to do so will cause irreparable damage to your pump and will
invalidate your warranty.
• Open shower mixer valve/system outlets to maximum hot and cold to check the natural
flow (unpumped) MUST be at least 1 litre in 30 seconds per side and 2 litres in 30 seconds
mixed for positive head pumps.
• Open hot water outlets fully for 5 to 6 seconds and then turn outlets off. Then open cold
water outlets fully for 5 to 6 seconds and turn outlets off. If flow is poor and inconsistent
repeat above steps until flow is steady.
• Repeat 2-3 times
Negative head systems
Negative head systems exist where insufficient natural flow of water goes to the outlet
because either the outlet or the pipework to the outlet are above the height of the base of
the cold water cistern. Most instances of negative head systems occur in loft conversions
or where the cold water cistern sits on the joists in the loft. If the distance between the
bottom of the cold water cistern and the highest point in the system after the pump is 2
feet (610mm) or less, it is also possible that a universal pump will be required. Salamander’s
universal range of pumps activate the pump automatically even where insufficient natural
flow exists.
UK CT pumps suitable for negative head operation are:
CT FORCE 15 TU, 20 TU, 20 SU, 30 TU and 30 SU, and CT Bathroom 60BU & 80BU.
Irish CT pumps suitable for negative head operation are:
CT FORCE 15 ITU, 20 ITU, 20 ISU, 30 ITU and 30 ISU, and CT Xtra 64HU, 69HU & 84HU.
Outlet
Outlet
Vent and
other services
Usable
capacity
Fit an
equilibrium
ball valve
Inlet
MAX
65°C
The hot connection
must be by an
approved top or
side entry flange
(Figure 3)
Negative
Head
If any pipe work to an outlet
is taken to within 610mm
of tank, the installation will need
to be fitted with a universal pump
Inlet
610mm
(2 feet)
The hot connection must be via an
approved side or top entry flange
MAX
65°C
Outlet
Outlet
Inlet
Inlet
Figure 8. Negative head system
The hot connection
must be by an
approved method