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DO NOT switch on electrical supply until the heater is full of water.
THERMOSTAT
An adjustable Cotherm TSD rod type thermostat is fitted. This should be set
during installation by rotating the setting dial with a small screwdriver to the
maximum position, marked by "+", and then turning back 45º. The maximum
setting is 70ºC and the minimum is 18ºC. Settings below 65ºC are
recommended in hard water areas to minimise the build-up of scale. After the
first heating cycle check the water temperature and adjust the thermostat as
necessary.
OVER-TEMPERATURE CUT-OUT
The FBM heater is fitted with manually resettable over-temperature
protection. In the event of the unit overheating due to a thermostat
malfunction or setting too high the Over-temperature Cut-out(s) will interrupt
the power to the element(s). On 3kW units the Over-temperature Cut-out is
adjustable and should be set approx. 15ºC above the control thermostat
setting. The maximum Over-temperature Cut-out setting should be 85ºC. The
6kW units have two fixed temperature Over-temperature Cut-outs, one
protecting each element. If the Over-temperature Cut-out(s) operate the
element(s) will remain off until the Over-temperature Cut-out(s) are reset. Do
not reset the Thermal Cut-out(s) until the cause of operation has been
investigated.
To re-set, DISCONNECT THE ELECTRICAL SUPPLY BEFORE REMOVING
THE TERMINAL COVER, remove terminal cover, check the operation of the
Thermostat and reduce its temperature setting or replace if faulty. Press the
RESET button on Over-temperature Cut-out(s) (black on 3kW units, red on
6kW units), replace the terminal cover before switching on electrical supply.
SPARE PARTS
Should a fault occur or maintenance be required on the heater a full range of
Spare Parts is available. Please contact either your Distributor or Heatrae
Sadia for further information.
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