Salamander Pumps Right Pump Series, Инструкция по установке и гарантийный талон, Страница: 9 / 28

9
Right Pump
Universal - System
Operation
Negative head systems
Negative head systems exist where the natural
flow of water that goes to the outlet (tap,
shower etc.) is less than 2 L/min on either
hot, cold or both. This can happen when the
outlet, or the pipework to the outlet, is close
to or 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 of 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 activates the pump automatically
even where no natural flow exists.
Negative head is also needed for electric
showers, dishwashers, washing machines or
where pumped hot water meets mains cold.
Non-Return Valves
Non-return valves MUST NOT be fitted in the
discharge pipework between the pump outlets
and the system outlets unless specified by
Salamander Pumps
Pressure Vessel
BEFORE INSTALLATION OF YOUR NEGATIVE
HEAD PUMP - Fit the pressure vessel, if
packaged separate to the pump. Use the 1/2”
flat rubber washer in the 1/2” brass connection
on the top of the pump junction box. Screw the
pressure vessel into the connection hand tight.
Right pump universal
A Right universal twin for a bathroom in a loft
conversion.
Figure 8: Negative head
Please note
Right universal twin pumps to a whole house
system. In these systems TOILETS must be
fitted with equilibrium ball valve(s).
Fit an
equilibrium
ball valve
The hot
connection
must be via
an approved
side or top
Cold water storage
Outlet
Inlet
Outlet
H C
MAX