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Installation, Operation &
Maintenance Instructions
1200°C Split Tube furnaces (3-zone)
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.
Section
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
Manuals are supplied separately for the furnace controllers
(and overtemperature controller when fitted).
Please read the controller manuals before operating the furnace.
types HZS & TVS
C
ONTENTS
page
2
3
5
8
9
11
12
15
16
MF24 - 3.44
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Table of Contents
Related Manuals for VERDER Carbolite HZS Series
Summary of Contents for VERDER Carbolite HZS Series
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Page 1: Table Of Contents
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. ONTENTS Section page... -
Page 2: Introduction
HZS, TVS 1.0 I NTRODUCTION Models in the Range The HZS and TVS range of 1200°C split tube furnaces is available in a variety of styles and orientations. The principal varieties are: vertical TVS, without outer casework , optionally with a wall bracket, for customer mounting; ... -
Page 3: Installation
HZS, TVS 2.0 I NSTALLATION Unpacking & Handling When unpacking or moving the furnace always lift it by its case or main body. Never lift it by its insulation or by a fitted work tube. If possible use two people to carry the furnace and remote control box. - Page 4 HZS, TVS Electrical Connections Connection by a qualified electrician is recommended. The furnaces covered by this manual may be ordered for single phase A.C. supply, which may be Live to Neutral non-reversible, Live to Neutral reversible or Live to Live. Some models can be supplied for three phase use (and if so, are “universal”...
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Page 5: Operation
HZS, TVS 3.0 O PERATION The instructions for operating the temperature controller are given in a separate manual. If the furnace is fitted with a time switch, see also the supplementary manual MS03. If cascade control is fitted, see the supplementary manual MS07. 3-zone Control Methods The models in this manual are typically designed to achieve an extended uniform temperature zone by the use of three control zones, with he control zones linked so that end zones follow the central... - Page 6 HZS, TVS is a 3508 use the up down to select SP1, (SP1 = Local, and SP2 = Remote). There is no need to alter the centre controller. It is possible to use local trim in the end zone controllers to enter a positive or negative adjustment from the centre zone temperature.
- Page 7 HZS, TVS The furnace incorporates a safety switch which interrupts the heating element circuit when it is opened. This prevents the user touching a live heating element, but also prevents the furnace from heating up when open. The operation of this switch should be checked periodically – see section 4.1.2.
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Page 8: Maintenance
HZS, TVS temperatures only up to 600°C try a power limit of 50%. Control stability may fall off again if a setting below about 40% is used. Before changing the power limit, record its factory setting for possible future use. 4.0 M AINTENANCE General Maintenance... -
Page 9: Repairs & Replacements
HZS, TVS 5.0 R & R EPAIRS EPLACEMENTS Safety Warning – Disconnection from Supply Always ensure that the furnace is disconnected from the supply before repair work is carried out. Safety Warning - Refractory Fibrous Insulation Insulation made from High Temperature Insulation Wool Refractory Ceramic Fibre, (better described as Alumino Silicate Wool) (ASW) This product contains alumino silicate wool products in its thermal insulation. - Page 10 HZS, TVS Make a note of the thermocouple connections Type N colour codings are: negative = white, positive = pink (old models: negative = blue, positive = orange). Disconnect the thermocouple from its terminal block and withdraw it from its sheath (the narrow- bore built-in tube) and remove any broken bits of thermocouple.
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Page 11: Fault Analysis
HZS, TVS 6.0 F AULT NALYSIS A. Furnace Does Not Heat Up The heating Check also that the SSR is working The HEAT light element has failed correctly is ON The controller The thermocouple has broken or has a The HEAT light shows a very high wiring fault... -
Page 12: Circuit Details
HZS, TVS 7.0 C IRCUIT ETAILS Safety Switches type A: A 2-pole Heater Switch is fitted directly in the element circuit in models up to 16A rating. (Before mid-2000, up to 20A rating, 2 door switches were also fitted in this position, in series with the Heater Switch.) Safety Switch type B: A door switch is fitted into the contactor coil circuit. - Page 13 HZS, TVS Control by Broadcast comms (control method B) When this is ordered there are three independent thermocouples (instead of the four shown) connected to the three controllers; the controllers are linked together (not shown), and remain “master” and “slave”. The communication between the controllers of the Eurotherm 3000 series is known as Broadcast comms.
- Page 14 HZS, TVS 3-phase “universal” wiring Filters (if fitted) Contactors Instrument Switch (2 or 3) heat heat heat coil coil safety switches if fitted overtemp. controller thermocouple temperature controller thermocouple Fuses F1 are always present in this wiring design. Fuses F2 could be absent in some circumstances, if the circuit does not exceed 10A. Fuses F3 are present if the circuit exceeds 25A, but otherwise are usually absent.
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Page 15: Fuses & Power Settings
HZS, TVS 8.0 F & P USES OWER ETTINGS Fuses Fitted if supply cable fitted. on-board and up to 16 Amps: Internal 38mm x 10mm type F supply Fitted on board to some types of EMC filter. fuses other: GEC Safeclip Auxiliary Fitted on board to some types of EMC filter. -
Page 16: Specifications
9.0 S PECIFICATIONS Carbolite reserves the right to change specifications without notice Models Covered by this Manual MODEL Max. Max. Work Work Heated Uniform Temp. Power Tube Tube Length Zone Weight Bore Length Length (°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...
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