BACKER ELECTRIC BS311-BS336 Anti Corrosive Immersion Heater Instruction Manual
- June 17, 2024
- BACKER ELECTRIC
Table of Contents
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.
- 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.
- Wire the supply leads through a double pole switch to the heater as follows:
- Green or Green and Yellow to Earth terminal marked ‘E’.
- Blue (Black) to Neutral terminal marked ‘N’ with the loose components as shown above. NB Support terminalwith pilers.
- Brown (Red) to Free terminal on Thermostat.
- Fasten flexible cord in the cable clamp within the cover with the loose components as shown above.
- 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
