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5. Whale
Water Heater Operating Instructions
®
To the User: Read the following instructions carefully.
Observe All Warnings
Never operate the Water Heater without water in it. This appliance must not be connected directly to the
mains water supply without a pressure regulator fitted, or any water supply greater than 190 kPa (1.9 bar).
Ensure that the caravan water system, including this Water Heater, is full of water and that the vehicle is
level before operating.
When using operating switches provided by the Installer or Vehicle Manufacturer, the Installer or Vehicle
Manufacturer are responsible for providing user instructions and identification of symbols on the Control
Panel.
When using the Water Heater in winter, ensure the flue is not blocked by snow or fallen leaves etc.
Step One:
Upon initial operation or to refill after the system has been drained, check that the drain
valve is closed, (see Fig. 1) then fill the system with clean fresh water.
Step Two:
To fill, open one hot tap and switch on the water pump.
Step Three:
Leave the tap open to allow air to escape while the Water Heater is filling. When water
flows smoothly out of the hot tap, the water heater is filled. To allow the remainder of air to
escape from the system, open each hot water tap in turn until water flows smoothly from
each tap.
Protection Against Frost
If temperatures are likely to fall below zero degree celsius, you must ensure that water is drained from the
Water Heater. (Unless Frost Protection is in operation). To drain the Water Heater open the drain valve on
the Expanse interface to the open position (see Fig. 2). At the same time the taps must be open in the hot
position to allow air entering the system to aid with the draining process.
Periods of Disuse
If the Water Heater is not going to be used for more than 3 days, disable the Water Heater on the control
panel, isolate the gas supply by ensuring the gas shut off valve to the Water Heater is closed, ensure that
the gas supply is turned off (if no other gas appliances require a continued supply), and drain down the water
heater as described above.
Please note: Frost damage will not be covered by warranty.
WARNING OPERATING INSTRUCTIONS - DRAIN VALVE
The drain valve is located at the top of the Water Heater, beside the cold and hot water inlet. To operate the
drain valve, turn the yellow lever clockwise 90 degrees to the open position (see Fig. 2). If the plumbing ar-
rangement in the vehicle causes air locking preventing the water heater from draining, consideration should
be given to fitting a vacuum relief valve, Whale
Please Note: Water will drip from the discharge pipe of the pressure-relief valve during heating up. The pres-
sure relief valve must be operated regularly (at least twice a year) by turning the yellow lever from the closed
to open position, to remove lime deposits and to ensure that it is not blocked.
Figure 1. Drain Valve Operation - Closed Position
Part # AK1228.
®
Figure 2. Drain Valve Operation - Open Position
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