VERDER Carbolite HZS Series Installation, Operation & Maintenance Instructions Manual Download

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MF24 – 3.44

Installation, Operation &

Maintenance Instructions

1200°C Split Tube furnaces (3-zone)

types HZS & TVS

This manual is for the guidance of operators of the above Carbolite products

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

Manuals are supplied separately for the furnace controllers

(and overtemperature controller when fitted).

Please read the controller manuals before operating the furnace.

ONTENTS

Section

page

Repairs & Replacements

Fuses & Power Settings

9.0

Specifications

Summary of Contents for Carbolite HZS Series

Page 1: ... is connected to the electricity supply Manuals are supplied separately for the furnace controllers and overtemperature controller when fitted Please read the controller manuals before operating the furnace CONTENTS Section page 1 0 Introduction 2 2 0 Installation 3 3 0 Operation 5 4 0 Maintenance 8 5 0 Repairs Replacements 9 6 0 Fault Analysis 11 7 0 Circuit Details 12 8 0 Fuses Power Settings 15...

Page 2: ...al design intent in these 3 zone models is to achieve an extended uniform single zone When independent control is fitted some temperature difference can be achieved but Carbolite can make no specific warranty as to the extent to which this is possible 1 2 Voltage and Power Control All models in this range from March 2001 are supplied with heating elements designed for use over the voltage range 20...

Page 3: ...ols cool Ensure that the control box is placed in such a way that it can be quickly switched off or disconnected from the electrical supply see below 2 3 Setting Up If the furnace is supplied with a work tube or any accessories fit these into position For optimum temperature uniformity insulating plugs should be placed in the tube ends as shown in fig 1 With a long inner work tube the stem of the ...

Page 4: ...reach of the operator and should be quickly removable Connection to isolating switch this should operate on both conductors single phase or on all live conductors three phase and should be within reach of the operator The supply MUST incorporate an earth ground CONNECTION DETAILS supply type Supply Terminal label Cable colour Live Neutral Reversible or Live Live 1 phase L Brown To live to either p...

Page 5: ...nace maximum temperature To alter the setpoint with the display at home press Down or Up once to display the setpoint press again or hold down to adjust it The display returns to the measured temperature offset when no key is pressed for 0 5 seconds Sometimes a furnace using this type of control does not cool down this may depend on the customer work load The end controllers strive to remain at th...

Page 6: ...yet been set as required set it and activate it according to the instructions in the appropriate manual Switch on the Heater switch located on the instrument panel Unless a time switch is fitted and is off the furnace starts to heat up The Heat light s glow steadily at first and then flash as the furnace approaches the desired temperature or a program setpoint Overtemperature option only If the ov...

Page 7: ...e to accept high internal pressure When gas seals or similar fittings are in use the gas pressure should be restricted to a maximum of 0 2 bar 3 psi A pressure of about half of that should normally be sufficient to achieve the desired flow rate The customer must ensure that the exhaust path from the tube is not blocked so that excess pressure does not occur 3 7 Power Adjustment The furnace control...

Page 8: ...ve and neutral of a 1 phase supply 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 accurate temperature readings or which use the furnace close to its maximum temperature A quick check using an independent thermocouple and temperature indicator should be...

Page 9: ...natively our service division can quote for any repairs to be carried out at your premises or ours 5 3 Temperature Controller Replacement 301 This controller is fitted to the back of the control panel in many models this can be separated from the base by removal of two screws Refer to the detailed instructions supplied with the replacement controller Before handling the controller wear an anti sta...

Page 10: ... assembly Make a plan of all the cable connections and disconnect the cables Remove the thermocouples by withdrawing them from the sheaths built into the elements Remove the plates through which the element tails are located Remove the keep plates from each side of the insulation assembly Lift out the element to be replaced save any insulation sleeves for possible reuse Bend or cut the new element...

Page 11: ...er or faulty controller There are no lights glowing on the controller Check the supply fuses and any fuses in the furnace control compartment The controller may be faulty or not receiving a supply due to a faulty switch or a wiring fault B Furnace Overheats 1 The HEAT light goes OFF with the instrument switch The controller shows a very high temperature The controller is faulty The controller show...

Page 12: ...o mid 2002 some models had door switch A If type F1 fuse is present one per phase if fitted If type F2 fuse is present one is fitted if type F3 fuse is present one per phase is fitted Note that on 2 or 3 phase models there may be three separate neutrals taken to a common supply terminal depending on EMC filter requirements 7 3 Independent Zones control method C When this is ordered there are three...

Page 13: ...sformer to reduce the control voltage to 240V or similar 7 7 Higher Voltages e g 254V For 254V or above an isolating transformer is included in the control circuit 7 8 Model Configurations These models normally have end zones of pair of elements each the centre zone comprises the remaining elements wired in parallel By special order the zones can be of other lengths There are many possible electri...

Page 14: ...phase in the range 200V 240V 3 phase neutral Circuit no 1 N L N L Circuit no 2 Circuit no 3 N L3 L2 L1 Supply Terminals N L Fuses or EMC filters PE Not used 3 phase delta Circuit no 1 N L N L Circuit no 2 Circuit no 3 N L3 L2 L1 Supply Terminals N L Fuses or EMC filters PE 1 phase Circuit no 1 N L N L Circuit no 2 Circuit no 3 N L3 L2 L1 Supply Terminals N L Fuses or EMC filters PE Not used Instru...

Page 15: ...0 415 240 10A HZS TVS 12 600 3 phase delta 200 240 10A HZS TVS 12 600E 1 phase 200 240 15 16A HZS TVS 12 600E 3 phase N 380 220 415 240 5A HZS TVS 12 600E 3 phase delta 200 240 10A HZS TVS 12 900 1 phase 200 240 25A HZS TVS 12 900 3 phase N 380 220 415 240 10A HZS TVS 12 900 3 phase delta 200 240 15A HZS TVS 12 900E 1 phase 200 240 25A HZS TVS 12 900E 3 phase N 380 220 415 240 10A HZS TVS 12 900E ...

Page 16: ...ne Length1 Net Weight2 C kW mm mm mm mm kg 3 zone Split Tube furnaces heated by resistance wire moulded in refractory fibre Horizontal Models in an opening case HZS 12 600 1200 C 3 0 25 100 700 600 41 HZS 12 900 1200 C 4 5 20 100 1000 900 60 Vertical Models with a variety of stand and fixing options TVS 12 600 1200 C 3 0 25 100 700 600 35 TVS 12 900 1200 C 4 5 20 100 1000 900 50 Models above have ...

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