Heatrod AESTB 327 Domestic Immersion Heaters User Manual

June 4, 2024
HEATROD

Incorporating ThermTec.

AESTB 327 Domestic Immersion Heaters

Fitting Instructions for Immersion Heater Types :
AESTB 3xx, BESTB 3xx, CESTB 3xx, DESTB 3xx, EESTB 3xx, CKSTF 3xx & CKSTF -340 REW. ( “xx” denotes immersed length in cm) 3kw Heaters conform to AS/NZ 60335.2.73 and are Nemko approved.

  1. Check that the heater rating label shows the voltage that conforms to your mains supply.

  2. Install the heater into the water tank or cylinder using the O-ring or gasket supplied. Use a shaped immersion heater spanner- Stillsons should not be used. The heater may be installed into a tank of any size, suitable to take this heater when installed in a horizontal manner, and that the heater is always fitted below water level, such as a cistern-fed tank, if applicable.

  3. It is essential that the installer checks that the water level within the tank or cylinder is such that the water will always fully cover the heating element by a depth of at least 100mm. Under No circumstances must the heater be allowed to run dry – serious damage may result to the heater in addition to danger of personal injury and damage to property.

  4. Check the heater for possible water leakage before moving on to the wiring stage. See below for schematic wiring diagram.

  5. The heater is to be wired with cable having a minimum size of 1.5 sq mm., 90ºC elastomer insulated H05BN4-F sheathed cable to AS/NZ 3191. The heater MUST be fully earthed and wired through a double pole switch having a contact separation of at least 3mm in accordance with the wiring rules. Ensure all terminal connections are securely made and there are no loose strands. Do not use excessive force when tightening terminals.

  6. Nemko approval will only apply to Approved Heaters if the following thermal controls are used : Cotherm TSR00014. The heater conforms to the EEC Directive BS EN 55014-1:2006+A2:2011 for Electromagnetic compatibility.
    Warning : Before making any adjustments within the heater terminal cover, isolate the heater from the mains electricity supply. DO NOT COVER the heater cap.
    This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with this appliance

  7. In the event of the manually resettable cut-out within the thermostat operating, isolate the heater from the mains supply before removing the terminal cover. Investigate and identify the cause for the operation of the cut-out, and rectify if possible before manually resetting the device by pressing the small button located on the top of the thermostat housing. At the same time, to prevent re-occurrence, it is advisable to turn down the temperature setting on the thermostat to around 55 deg C. It must be noted that if the cylinder is also heated by a secondary source such as solar energy, or by an oil or coal fired boiler producing heat higher than the cut-out preset temperature, this can also cause the cut-out to operate. It is not recommended that the thermostat is set higher than 60 deg C.

  8. Important : It is not necessary for the heater to be removed to rectify any problems with the thermostat/cut-out. If the fault persists, the device can be replaced. Replacement thermostats can be obtained from the immersion heater manufacture using the details below.

  9. Schematic Wiring Diagram, Earth Assembly Diagram and Cable Grip Fitment Details.

Manufactured in the UK.
PLEASE RETAIN THIS LEAFLET FOR FUTURE REFERENCE.

Enviromental Information

Please note this product can be recycled at the end of its life cycle.
If required this product can be returned to Heatrod Elements Limited for disposal.

Heatrod Elements Limited ( Inc Thermtec )
Unit 10 Top Deck, Smethurst lane,
Farnworth, Bolton BL4 0AN
Tel : 0161 727 3713.
Fax @ 0161 727 3733.
email :info@heatrod.com
Web Site :www.heatrod.com
MS-002
Issue 3

Documents / Resources

| Heatrod AESTB 327 Domestic Immersion Heaters [pdf] User Manual
AESTB 327 Domestic Immersion Heaters, AESTB 327, Domestic Immersion Heaters, Immersion Heaters, Heaters
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