Manual

Flow Heaters

Part No: 15630/Issue 3 Page March 2003

1 Safety

The following symbols marked on the equipment mean:-

Caution: Read these operating instructions fully before use and pay particular attention to

sections containing this symbol

Caution: Surfaces can become hot during use.

Always observe the following safety precautions

• Use only as specified by the operating instructions, or the intrinsic protection may be impaired.

• After transport or storage in humid conditions, dry out the unit before connecting it to the supply

voltage. During drying out the intrinsic protection may be impaired.

• Connect only to a power supply with a voltage corresponding to that on the serial number label.

• Connect only to a power supply which provides a safety earth (ground) terminal.

• Before moving, disconnect at the power supply socket.

• Do not check the temperature by touch, use the temperature display or a thermometer.

• To reduce the risk of eye injury during high temperature operation, use safety goggles or

spectacles.

• Do not touch surfaces which become hot during high temperature operation.

• Ensure that the operating temperature is less than the maximum operating temperature of liquid

in the system.

• Set the adjustable overtemperature cut-out after setting or changing the set temperature, and

reset it at monthly intervals to check that the cut-out is operating correctly.

• Ensure that the mains switch is easily accessible during use.

• Do not block or restrict ventilation slots.

• If liquid is spilt inside the unit, disconnect it from the power supply and have it checked by a

competent person.

• It is the user’s responsibility to carry out appropriate decontamination if hazardous material is

spilt on or inside the equipment.

• Do not connect to a power supply or switch on before filling the system.

• Take care when topping up or draining, as the liquid in the system may be very hot or cold.

• If the alarm lamp is illuminated do not touch the liquid it may be very hot. Refill carefully, a hot

heater can cause a spattering of very hot water droplets and scalding steam.

• Always use a lid or polypropylene spheres when operating above 60°C. Take care when raising

and removing the lid, it may be hot. Steam and hot vapours can cause scalding.

• Drain before moving the unit. Before draining allow the liquid to cool to below 50°C.

• Use only liquids specified in the operating instructions, within the specified temperature range. If

the alarm lamp is illuminated the liquid temperature may be above its recommended maximum:

do not inhale the vapours given off as they may be toxic; liquids should be safely discarded and

replaced.

• When pumping to external apparatus, always use connecting pipe or hose suitable for the

operating temperature and liquid used, and check that the pipe connections are secure.

• To prevent excessive pressure occurring during closed loop circulation, fill the system to a

maximum of 95% of the total volume, to allow for liquid expansion.

• Do not disconnect any pipes or hoses while they contain very hot or cold liquid.