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HRF

MF05

USES

& P

OWER

ETTINGS

8.1

Fuses

F1-F3: Refer to the circuit diagrams.

Internal

supply
fuses

Fitted if supply cable fitted.
Fitted on board to some types of EMC filter.

on-board and up to 16 Amps:
32mm x 6mm type F
other: GEC Safeclip

Auxiliary

circuit
fuses

Fitted on board to some types of EMC filter.

2 Amps glass type F
On board: 20mm x 5mm
Other: 32mm x 6mm

Customer
fuses

Required if no supply cable fitted.
Recommended if cable fitted.

See rating label for amperage;
see table below for fuse rating.

Model

phases

Volts

Supply Fuse
Rating

HRF 7/22

1-phase

220-240

15A or 16A

HRF 7/22

1-phase

200-208

15A or 16A

8.2

Power Settings

For models made for 254 volts or 440 volts the power limit parameter

OP.Hi

may be set to 89%. If

in doubt please contact Carbolite.

For all other models in this manual the power limit parameter

OP.Hi

is set to 100%.

Note that the 208V model can safely be used on a 240 supply if and only if the power limit is
changed to 75%.

Содержание HRF 7/22

Страница 1: ...to the electricity supply CONTENTS Section page 1 0 Symbols Warnings 1 2 0 Installation 3 3 0 Operation 5 4 0 Maintenance 6 5 0 Repairs Replacements 7 6 0 Fault Analysis 9 7 0 Circuit Diagrams 10 8 0...

Страница 2: ...glows Heat Light the adjacent light glows or flashes to indicate that power is being supplied to the elements 1 2 Warning Symbols DANGER of electrical shock read any warning printed by this symbol DA...

Страница 3: ...re that there is free space around the furnace Do not obstruct any of the vents in the control section they are needed to keep the controls cool Ensure that the furnace is placed in such a way that it...

Страница 4: ...ses customer fusing is preferred but not essential Furnace with supply cable either wire directly to an isolator or fitted with a line plug Furnace without supply cable a permanent connection to a fus...

Страница 5: ...ating elements are isolated Find and correct the cause before resetting the overtemperature controller according the instructions supplied To switch the furnace off set the Instrument switch to O If t...

Страница 6: ...by mail order A telephone call or fax often enables a fault to be diagnosed and the necessary spare part despatched Each furnace has its own record card at Carbolite In all correspondence please quote...

Страница 7: ...mend reference to the European Ceramic Fibre Industry Association Bulletin No 11 and the UK Health and Safety Executive Guidance Note EH46 We can provide further information on request Alternatively o...

Страница 8: ...ng to the new element Remove the chimney open the furnace door and slide out the chamber liner Withdraw the element through the front of the furnace Insert the new element through the glands and refit...

Страница 9: ...no lights glowing on the controller The SUPPLY light is ON The controller may be faulty or not receiving a supply due to a faulty switch or a wiring fault The SUPPLY light is OFF Check the supply fuse...

Страница 10: ...ply light Instrument Switch E coil temperature controller thermocouple overtemp controller thermocouple L N F1 F2 Filter if fitted contactor R BU Fan Motor Capacitor BR BU Fan Motor Capacitor BR BU he...

Страница 11: ...fuses Required if no supply cable fitted Recommended if cable fitted See rating label for amperage see table below for fuse rating Model phases Volts Supply Fuse Rating HRF 7 22 1 phase 220 240 15A or...

Страница 12: ...g the details below UK Office Keison Products P O Box 2124 Chelmsford Essex CM1 3UP England Tel 44 0 330 088 0560 Fax 44 0 1245 808399 Email sales keison co uk Please note Product designs and specific...

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