BACKER ELECTRIC BS311-BS336 Anti Corrosive Immersion Heater Instruction Manual

June 17, 2024
BACKER ELECTRIC

BACKER ELECTRIC BS311-BS336 Anti Corrosive Immersion Heater Instruction Manual

Backer Electric Company Limited Wiring Instructions

ALTERNATIVE CABLE CLAMP ASSEMBLY ONLY FOR PLASTIC TERMINAL BOX

ALTERNATIVE TERMINAL ASSEMBLY
This heater is designed to take Backer BT-65° thermostats and fitted with a manual reset cutout.

  1. Connect the heater to the supply with a flexible cord or either of the folowing types: 1,5mm² 85°C rubber-insulated, 85°C RS 3-sheathed, complying with table 8 of BS6141:1991 or 2,5mm 90°C PVC – Insulated, 85°C PVC – Sheathed complying with table 15 of BS6141:1991.
  2. Wire the supply leads through a double pole switch to the heater as follows:
  3. Green or Green and Yellow to Earth terminal marked ‘E’.
  4. Blue (Black) to Neutral terminal marked ‘N’ with the loose components as shown above. NB Support terminalwith pilers.
  5. Brown (Red) to Free terminal on Thermostat.
  6. Fasten flexible cord in the cable clamp within the cover with the loose components as shown above.
  7. An efficient earth must be provided to the terminal marked ‘E’.

A DOUBLE POLE ISOLATING SWITCH HAVING A CONTACT SEPARATION OF 3.0mm MIN MUST BE INCLUDED IN THE INSTALLATION WARNING: THIS APPLIANCE MUST BE EARTHED Ensure ALL terminal screws are thoroughly tightened before re-fitting cover.
IF HEATER FAILS TO OPERATE ‘SWITCH OFF’ SUPPLY & CONSULT A QUALIFIED ELECTRICIAN.

Backer Energy Regulator

The immersion heater is only to be installed in a system where the heating element is always below water level. The installer must check that there is water in the tank before the immersion heater is switched on.

OPERATING CONDITIONS
This heater is intended for use only in a domestic hot water system with an indirect or direct copper cylinder conforming to BS 699, BS 1566, BS 3198 or similar specification and operating at maximum temperature of, or below 85 degrees centigrade.

No warranty is given or implied for uses other than as part of a domestic hot water system.

FITTING TO TANK

The heater is to be fitted to the tank using the washer supplied (or a ‘Water Council’ approved non-asbestos washer of at least 1.5mm in thickness) and tightened to a minimum torque of 30Nm.
To ensure a ‘leakfree’ joint, it is important that both flange faces are clean and free from all traces of old washer.

WATER HARDNESS
To obtain maximum heater service life it is important to select the correct type of Immersion heater for local water conditions.]

The ‘Standard’ range of Immersion heaters, where the sheath is of ‘COPPER’ material, are designed to operate in ‘soft’ to ‘neutral’ water or where water softening equipment is used.
The ‘Backerloy’ or ‘Anti-Corrosive’ range of Immersion heaters, where the sheath is of ‘STAINLESS’ type material, are designed to operate in ‘neutral’ to ‘hard’ water where the build-up of limescale is likely to occur.

POWER SHOWERS OR SHOWER PUMPS
Where a second hot water outlet is fitted to the storage cylinder (hot water tank) to supply a shower pump or power shower, the guarantee/warranty does NOT cover defects arising from the operation of the heater when not totally Immersed in water.

LIMITATIONS

The appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge. Children should not be= allowed near the appliance. The quarantee/warranty does NOT cover defects arising from accidental damage, misuse, wear and tear, inappropriate selection to suit the local water conditions, incorrect connection or incorrect supply voltage.

‘CE’ MARKING

The ‘CE’ marking of this product indicates conformance to the following EEC regulations: Electro Magnetic Compatibility Regulaions (EMC), Elecrical Equipment (Safety) Regulations/Low Voltage Directive (LVD) and CE Marking Regulations.

Backer Electric A trading name of Heatrod Elements Ltd

Unit 32, Kingfisher Way, 31 East Business Park,
Todwick Road, Dinnington, Rotherham, S25 3AF
+44 (0) 1709 828292
www.backerelectric.com

References

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