servicesWater System............................................................................................................................ 44Tank types .................................................................................................................................45Pressure switches..................................................................................................................... 48Plumbing troubleshooting...........................................................................................................49Fresh level sensor & cleaning......................................................................................................50Pressure switch adjustment........................................................................................................50Ultraflow Water Intake Housing.................................................................................................. 51Water Fault Finding.................................................................................................................... 53Typical gas schematic drawing.................................................................................................. 55Gas .......................................................................................................................................... 56Types of gas ............................................................................................................................. 57Gas safety advice ..................................................................................................................... 58Ventilation ................................................................................................................................ 59Gas Fault Finding ...................................................................................................................... 60Electrical system ....................................................................................................................... 61Overseas connection ................................................................................................................ 61Wiring of connecting cable and caravan mains inlet ...................................................................62230V mains electrical equipment power consumption .............................................................. 63Typical appliance consumption figures ...................................................................................... 64services43
water systemwater tanksservicesWATER SYSTEM-IntroductionAll Swift Group caravans water systems havebeen designed around a pump fitted withinthe caravan. This pump draws water from anexternal source, to provide water pressurewithin the caravan, whenever it is switched onand water is available.The schematic below shows the basicconfiguration of the water system with inboardpump and no internal water tank:Tank Types – OverviewNo Internal Water TankA caravan water system with no internal watertank functions in the following way:services44When power is supplied to the pump, it willdraw water from the external container throughthe water inlet mounted on the side of thecaravan, and pump it to the caravan taps,shower and water heater.The pump is fitted with its own pressureswitch, and the pump will continue to pumpwater, until the pressure of water on the outputof the pump reaches a pre-set level. For thispressure to be achieved, the taps must beclosed.When the taps are opened, water will leavethe tap via the spout, and the pressure in thepipes between the pump and the taps willreduce. Because of this reduction in pressure,the pressure switch on the pump will switchback on and the pump will again run to pumpmore water.Close to the pump, the water under pressureis split into two paths:1. Through blue water pipes routed directlyto the cold connection of each tap.2. To the water heater.Water from the pump enters the bottom of thewater heater. Once the water fills the waterheater (typically 10 litres), water then leaves thewater heater via a connection at the top of thatwater heater. This water, which is still underpressure, then routes to the hot connection ofeach tap via red pipes.The inboard pump draws water into thecaravan, via the inlet on the offside of thecaravan. This is directed to the water heater,taps and shower. An umbilical hose, withbaffle, is supplied with the caravan to connectbetween the inlet and an aquaroll or similarexternal container.On Arrival at the campsite /Priming the system• Ensure that the external water containeris full.• Close all of the taps (kitchen sink,bathroom, shower) except one, whichshould be open in the hot position.• Ensure that the water heater drain valveis closed (move the Yellow handle on thefloor near the water heater to ahorizontal position).• Switch the pump on using the button onthe control panel. Water will flow throughthe open tap after a short time. This tapcan then be moved to the cold positionand again after a short time water will flow.• Repeat the procedure at each tap.• When using a mains water connectionthe pump will still need to be switched onto supply water to the water heater,taps and shower.• If a mains water connection is used,please ensure this is a Truma Waterlineconnection, which has a built in pressurereducing valve.• To drain / winterise the system please seeseparate details later in this handbook.45