Pressure Switch - Swift Group Select 122 Owner's Handbook Manual

PR ES S UR E S WITC H
If tank heaters are fitted, they can be turned
on via the control panel feature of the Swift
Command panel above the entrance door
(see page 66). 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 depending on temperature.
As the tank heaters check the water level
in each tank, 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.
It is also possible to use the tank heaters en-
route, i.e. while driving. With the control panel
ON, turn on the tank heaters as described
above. While the engine is running the control
panel cannot be operated, however, the tank
heater circuits will remain ON.
Please note that the heating elements
use a 12V supply. With the engine off,
and if used without a mains hook up and
charger operating, then leisure battery
power consumption will be increased (see
consumption table on page 57 for more
information).

Pressure Switch

The purpose of a pressure switch is to monitor
the pressure on the outlet side of the pump.
When a tap is closed, and the pump continues
to run, there is an increase of pressure in the
system, and when that pressure reaches a
pre-set limit, the pressure switch will turn the
pump off.
Pressure switch adjustment
Pressure Switch Adjustment, Truma/Flo-Jet
pump. (Normally Grey upper section with
White lower section/valve housing)
• All of the Truma/Flo-Jet pumps used by Swift
are pre-set at 25psi - 31psi.
42
• To further adjust the pressure switch setting,
a cover cap must be first be removed from
the end of the pump to reveal a pressure
adjusting screw, as shown in the photos.
A maximum of 1/4 turn clockwise or
anti-clockwise, from the factory setting, is
advised. Turning the screw clockwise 1/4
turn will increase the pressure switch cut-out
pressure, turning the screw anti-clockwise
will reduce the pressure setting.
• Please note a second screw mounted
below the cover cap is set in position with
threadlock, this should not be disturbed.
Pressure switch
adjusting screw
The pump may have to be removed to gain
access to the adjusting screw. Drain the water
system before removing the pump.
To remove the pump pull the blue taps at right
angles to the pipe work and lift the pump out.
Cover cap