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LF01-1.23 

 

 

 

 

 

Installation, Operation & 

Maintenance Instructions

 

1100°C Chamber Furnaces 

EF 11/8 & AF 11/6 

(B models) 

 
 

 

 

 

 

 

 

This manual is for the guidance of operators of the above products and should 

be read before the furnace is connected to the electricity supply. 

 

Manuals are supplied separately for the furnace controller  

(and overtemperature controller when fitted). 

Please read the controller manuals before operating the furnace. 

 

 

C

ONTENTS

 

 

Section 

 

page 

 

1.0 

Introduction 

 

2.0 

Installation 

 

3.0 

Operation 

 

4.0 

Maintenance 

 

5.0 

Repairs & Replacements

 

 

 

6.0 

Fault Analysis 

11 

 

7.0 

Circuit Diagram 

12 

 

8.0 

Fuses & Power Control 

13 

 

9.0 

Specifications 

16 

 

 

Содержание Lenton AF 11/6

Страница 1: ...onnected to the electricity supply Manuals are supplied separately for the furnace controller and overtemperature controller when fitted Please read the controller manuals before operating the furnace...

Страница 2: ...mit parameter in the controller For model AF 11 6B the equivalent range is 220 240V Because of the model changes it is very important when ordering spares to state the furnace serial number or otherwi...

Страница 3: ...the furnace on an inflammable surface Ensure that there is free space around the furnace Do not obstruct any of the vents in the case they are needed to keep the controls and the case exterior cool En...

Страница 4: ...TION DETAILS supply type Supply Terminal label Cable colour Live Neutral Reversible or Live Live 1 phase L Brown To live to either power conductor N Blue To neutral to the other power conductor PE Gre...

Страница 5: ...e temperature slowly over the last 300 C allowing 10 minutes soak at 100 C intervals When heating large objects in particular poor conductors avoid shielding the thermocouple from the heating elements...

Страница 6: ...he original setting before altering the power limit Example It is desired to run the furnace at 300 C The normal control settings can be expected to cause excessive overshoot as the furnace reaches te...

Страница 7: ...t should be isolated when the door is opened 4 2 Calibration After prolonged use the controller and or thermocouple could require recalibration This would be important for processes which require accu...

Страница 8: ...n Bulletin No 11 and the UK Health and Safety Executive Guidance Note EH46 We can provide further information on request Alternatively our service division can quote for any repairs to be carried out...

Страница 9: ...the chamber back blanket packing around the back and the chamber base board Disconnect the furnace from the supply and remove the back panel Remove the hearth tile if necessary See section 5 6 above t...

Страница 10: ...tain any insulation sleeves to refit later To remove the chamber box slacken the 4 bolts on the underside then slide the chamber box out the back of the case Be careful the chamber is heavy Remove the...

Страница 11: ...e are 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 suppl...

Страница 12: ...TE models before mid 2002 in some models two door switches were fitted directly in the element circuit instead of a single switch and contactor For models up to 16A the EMC filter and fuses are integr...

Страница 13: ...uses Required if no supply cable fitted Recommended if cable fitted See rating label or table below for recommended fuse rating Model phases Volts Supply Fuse Rating EF 11 8B 1 phase 200 240V 10A EF 1...

Страница 14: ...EF AF 14 LF01...

Страница 15: ...EF AF LF01 15...

Страница 16: ...erves the right to change specifications without notice 9 1 Models Covered by this Manual MODEL Max Temp Max Power Chamber Size mm Approx Capacity Net Weight C kW H W D l kg Chamber furnace heated by...

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