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MOBUS
SAFETY INFORMATION
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Do not install MOBUS into a towel rail fitted in ZONE 0 or ZONE 1 (Fig.1).
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IMPORTANT: Always disconnect the electricity supply from the mains during installation and maintenance. It is recommended that
the fuse is withdrawn or circuit breaker switched off at the distribution board while work is in progress (turning off the switch is not
sufficient).
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Verify that the rated voltage of MOBUS is the same as the supply voltage.
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Make sure that the MOBUS is correctly earthed according to the standard in force.
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Check that the electricity supply system is connected through an MCB (Magnetothermic Circuit Breaker) and RCCB (Residual
Current Circuit Breaker) devices.
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MOBUS MUST NOT BE POWERED IN AIR.
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MOBUS is intended to work only if completely immersed in the liquid (water) inside the towel rail.
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Do not touch the metallic parts of MOBUS if it is powered; before maintenance and de-installation operation wait.
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The necessary time to ensure it is cold after it is switched off.
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In ‘Electric only’ MOBUS installation the towel rail MUST have a sufficient air gap to allow for water expansion.
MAIN RECOMMENDATION ON ELECTRICAL TOWEL RAIL (Applicable standard EN 60335-2-43)
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The electrical towel rail is intended only for dry towels washed in water. Any other use is forbidden.
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In ‘Electric only’ MOBUS installation, fill the towel rail with a certain percentage of water according to the towel rail manufacture
instructions. In case of missing instructions, we recommend to fill the towel rail approximately 90% with water to allow for
expansion; making sure that the MOBUS heating element is completely immersed in water. Addition of glycol and possibly an
inhibitor is recommended, as part of this percentage mix.
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It is recommended to use in any installation (Electric only and Dual fuel installations) a self-relief pressure valve (like 3 Bar valve) on
the top part of the rail in the opposite side where the MOBUS is installed. In case of valve intervention, it is quite normal for liquid
relief and water excess to possibly reach the floor. Please, take this aspect into consideration.
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In ‘Dual-fuel’ installation with central heating and MOBUS, at least one of the rail valves must always be left open, when the
electrical element is switched on.
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For all other aspects, refer to EN 60335-1 and EN 60335-2-43.
GUARANTEE
MOBUS is guaranteed for 12 months from any manufacturing defects, from the date marked on it.
The guarantee of MOBUS is not valid in case of improper use or installation.
CONTACTS DETAILS
Pitacs Ltd. Bradbourne Point, Bradbourne Drive, Tilbrook, Milton Keynes, Buckinghamshire MK7 8AT – United Kingdom
Tel: +44 (0) 1908 271155, Fax: +44 (0) 1908 640017, E-mail: [email protected]
PRODUCT PRESENTATION
MOBUS is a self-regulating PTC heating element integrating a thermomechanic capillary thermostat to regulate water
temperature in electric towel rails with heat transfer fluid. The control is assembled with PTC Class I heating element and a
capillary termostat bulb as a complete mounting kit including a 3G PVC cable. The unit can be connected to a fully electric
towel radiator or a hybrid electric-hot water heater (dual fuel, central heating radiator). The symmetric design makes it suitable
either for ladder type electric towel rails, as well as with traditional electric towel rails.
MOBUS is complete with:
an LED which is ON when the product heating element is working.
a rotating knob to set the towel rail water temperature.
MOBUS senses the water temperature around the area where the capillary bulb is located and is not intended to create a
uniform thermal distribution over the whole electrical towel rail surface.
NOTE: According to the geometry, treatment, construction material and liquid (water or water and glycol) of a specific
electrified towel rail with MOBUS the thermal distribution can be significantly different. For specific performance, you must
refer to the towel rail manufacturer or carry out specific tests.
