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Pressure and Temperature Relief Valve (P&T safety valve)
• Risk of scalding injury from hot water and/or tampering with the P&T safety valve!
• Do not actuate the P&T safety valve as long as the appliance is still hot.
• Do not place a plug or reducing coupling in the discharge pipe (Fig. 2a - 4b) of the P&T safety
valve.
• Do not operate the water heater without a functioning P&T safety valve - this could cause an
explosion.
The P&T safety valve (4) is a safety component and must not be removed for any reason other than
replacement.
The P&T safety valve is not serviceable; if defective it must be replaced (failure to reuse an old P&T safety
valve). It must be replaced by a certified service technician.
Tampering with the P&T safety valve will void the warranty.
4 P&T safety valve
4a Test lever
4b Discharge pipe
Draining the Water Heater
• If the vehicle is not used during periods of frost, it is essential that the Truma UltraRapid be
emptied.
• Disconnect power for water pump (main switch or pump switch).
• Allow the appliance to cool down.
• Open hot water taps in bathroom and kitchen.
• Open drain valve (Fig.2 - 3). Lever in the “f” position (drain). The water heater is now drained
directly to the outside via the drain valve (3).
• Check that the water has been completely drained (14 litres).
Switching On Gas Operation
Never operate the heater without water in it!
If the wall cowl is positioned close to an opening window (or hatch) – in particular directly under
it – the window must remain closed when the water heater is in use (see warning plate).
Removing The Cowl Cover
• Grab the handle of the cowl cover.
• Press the palm against the lid (Fig.3a - 1) while pulling the lid off the cowl (Fig.3a - 2).
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