Water System - Swift Motorhome Owners Service Manual

WAT ER SY STEM
Water system - Introduction
All Swift Group motorhome water systems
have been designed around a pump fitted
within the motorhome. This pump draws water
from an under floor or internal water tank,
to provide water pressure within the water
system, whenever it is switched on and water
is available.
The schematic below shows the basic
configuration of the water system:
When power is supplied to the pump, it will
draw water from the water tank, and pump
it to the motorhome taps, shower and water
heater.
The pump is fitted with its own pressure
switch, and the pump will continue to pump
water, until the pressure of water on the output
of the pump reaches a pre-set level. For this
pressure to be achieved, the taps must be
closed.
When the taps are opened, water will leave
the tap via the spout, and the pressure in the
pipes between the pump and the taps will
reduce. Because of this reduction in pressure,
the pressure switch on the pump will switch
back on and the pump will again run to pump
more water.
Close to the pump, the water under pressure
is split into two paths:
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1. Through blue water pipes routed directly to
the cold connection of each tap.
2. To the water heater.
Water from the pump enters the bottom of the
water heater. Once the water fills the water
heater (typically 10 litres), water then leaves the
water heater via a connection at the top of that
water heater. This water, which is still under
pressure, then routes to the hot connection of
each tap via the red pipes.
To winterise the system please see
separate details later in this handbook.