Atlantic Boilers MULTI-ELEC STANDARD 525 Technical Manual - Page 11

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3.4) Fuse and overload protection

Fuse ratings and type – industrial cylindrical cartridge

90 to 280kW

F1 – 1A type aM, F2 – 1A type gG, F3 – 0.5A type gG

315 to 630kW

F1 – 1A type aM, F2 – 1A type gG, F3 – 0.5A type gG

F4 – F6 type 22 x 58 : 63A type gG

Type 0 : 125A type gG

Type 1 : 160A type gG

Type 2 : 250, 315 & 400A type gG

Amperage requirement – insert table from earlier

ELECTRICAL CIRCUIT

 The Standard electric boiler must be provided with 415volts and

without neutral wiring

 The electrical wiring cables must be sized by a qualified electrician in

order to conform

to BS C 15100 and satisfying load, length of run and prevention of short

circuit.

 The installation must be tested for automatic power failure in the

event of emergency

power cut, heater lock-out or error in the neutral layout.

 All electrical equipment shall satisfy IP21/IK08 Class 1

 The immersion heaters shall only receive electrical power if they are

fully immersed in water; otherwise the guarantee on the heaters will

not apply

ALL ELECTRICAL WIRING MUST BE CORRECTLY EARTHED