Priming The Water System - Swift Motorhome Owners Service Manual

P R IM ING & CL EAN IN G WATER S Y S T E M
External 12v Fill Socket
Depending on specification your motorhome
may be fitted with an external 12v socket
which can be used to attach an external 12v
tank filling pump.
Tank heaters
Depending on specification, your motorhome
may be fitted with 12v tank heaters, designed
to prevent or reduce instances of freezing
water in fitted water tanks.
If tank heaters are fitted, a button marked
'Frost Protect' will be present on the control
panel above the entrance door (see page
69). Turn this feature on when the external
temperatures are low, and the tank heaters will
then turn on and off automatically.
Before heating each tank the system will
check that the water level in each tank is at
the 1/4 level or higher (the heaters will not
operate if the tank is 'empty'). If the water
level is appropriate, the heaters will then
switch on and off based on the temperature
as measured by sensors within the tank. The
approximate temperatures that the heater use
to switch on and off, are:
Heater(s) switch ON if the temperature in the
tank falls below +5 degrees C.
Heater(s) switch OFF if the temperature in the
tank then rises to above +10 degrees C.
The fresh and waste water tank heaters can
operate independently, for instance use of
frost protect feature while the fresh tank
is full, but waste tank is empty, would only
result in the operation of the fresh tank heater.
Please note that the heating elements use
44
a 12V supply, and if used without a mains
hook up and charger operating, then leisure
battery power consumption will be increased
(see consumption table on page 63 for more
information.)

Priming the Water System

1. Close the water tank drain valve or re-fit the
drain bung. (Model specific)
2. Fill the water tank with water.
3. Close the water heater drain valve
(see boiler instructions in the fitted
equipment section)
4. Open all the taps except the shower tap.
Mixer taps should be opened in the central
position so that both the hot and cold pipes
are purged of air. Ensure the tap spouts are
over the sinks.
5. Turn on the pump using the button on
the control panel (See pump button in
paragraph 2.5 of the Electrics section).
6. Turn each tap off in turn as and when the
air is expelled and the water runs smoothly
from each tap. Move the mixer taps to hot
and then cold to check that the air is out of
both the hot and cold pipes before turning
them off.
7. Whilst holding the shower head down
towards the shower drain, open the shower
tap and shower head tap until all the air is
expelled and the water runs smoothly. Turn
the shower taps off.
8. Top up the fresh tank with water.
Please note that priming the system will
automatically fill the water heater with water.
Holding the shower head towards the drain,
open the shower tap until water flows freely.
Please ensure all taps are fully turned off when
not in use (except when winterising).
Note: All tanks are fitted with a breather
which acts as an overflow. Overfilling a tank
will result in water being expelled from the
overflow outside the vehicle.