FH16-D
Flow heaters
Operating instructions
Type: FH16 - D
Flow Heaters
CONTENTS
1 Safety 4
2 Installation 5
2.1 Unpacking 5
2.2 Assembly 5
2.2.1 Open tanks 5
2.2.2 Closed systems 5
2.2.3 Low volume 5
2.2.4 Low flow rates 5
2.2.5 Working below room temperature 5
2.2.6 Temperature sensors 5
3 Operation 6
3.1 Controls and indicator lamps 6
3.1.1 Power 6
3.1.2 Power lamp 6
3.1.3 Heater lamp 6
3.1.4 Temperature display 7
3.1.5 Set temperature knob 7
3.1.6 Alarm lamp 7
3.1.7 Set overtemperature knob 7
3.2 Filling 7
3.3 Switching on and setting up 8
3.3.1 Connecting to supply 8
3.3.2 Setting the temperature 8
3.3.3 Over temperature cut-out 8
4 Accessories 8
4.1 FC1 8
4.2 BS15 9
4.3 Pipe insulation PF2 9
4.4 Remote temperature probes 9
4.4.1 FF16 9
4.4.2 LL16 9
5 Fault diagnosis 9
6 Technical specification 10
7 Maintenance and service 10
7.1 Cleaning 10
7.2 Fuses 11
8 Guarantee 11
9 Service 11
Part No: 15630/Issue 3 Page March 2003
3
Flow Heaters
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
• 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
• Set the adjustable overtemperature cut-out after setting or changing the set temperature, and
• 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
• It is the user’s responsibility to carry out appropriate decontamination if hazardous material is
• 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
• Always use a lid or polypropylene spheres when operating above 60°C. Take care when raising
• 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
• When pumping to external apparatus, always use connecting pipe or hose suitable for the
• To prevent excessive pressure occurring during closed loop circulation, fill the system to a
• Do not disconnect any pipes or hoses while they contain very hot or cold liquid.
spectacles.
in the system.
reset it at monthly intervals to check that the cut-out is operating correctly.
competent person.
spilt on or inside the equipment.
heater can cause a spattering of very hot water droplets and scalding steam.
and removing the lid, it may be hot. Steam and hot vapours can cause scalding.
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.
operating temperature and liquid used, and check that the pipe connections are secure.
maximum of 95% of the total volume, to allow for liquid expansion.
Part No: 15630/Issue 3 Page March 2003
4
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