background image

Product without supply cable: a permanent connection to a fused and isolated supply
should be made to the internal terminals after temporary removal of the product
access panel. The access panel is located at the top of the 'A' models and the right
hand side of the 'B' models.

Connection by line plug: the plug should be within reach of the operator and should be
easy to remove.

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 electrical supply MUST incorporate an earth (ground).

Supply

Terminal Label

Cable Colour

Supply Types

Live - Neutral

Reversible or Live-
Live

1-phase

L1

Brown

to live

to either power
conductor

(For USA 200-240V,
connect L1)

N / L2

Blue

to neutral

to the other power
conductor

(For USA 200-240V,
connect L2)

PE

Green/ Yellow

to earth
(ground)

to earth (ground)

Electrical Connection Details:

3-phase L1

Black

to phase 1

L2

Black

to phase 2

L3

Black

to phase 3

N

Light Blue

to neutral (

except delta

)

PE

Green/ Yellow

to earth (

ground

)

DO NOT connect a product ordered for three phase use to a single
phase supply or to the wrong type of three phase supply.

2.4

Fan Rotation Indicator

Note:

Do not connect an oven ordered for three phase use to a single phase supply

or to the wrong type of three phase supply.

7

Содержание CARBOLITE GERO LGP 7/730

Страница 1: ...Installation Operation and Maintenance Instructions 700 C Large General Purpose Oven LGP Model 730 Litres No Controller LGP 7 730 No Controller MEN LGP7073 001_NOCTRL 18 10 2021 ...

Страница 2: ...7 3 0 Temperature Controller 9 4 0 Operation 10 4 1 Operating Cycle 10 4 1 1 Exhaust Fan Adjustment 11 4 2 Operating Cycle 11 4 3 Over Temperature Control if fitted 12 4 4 Explosive Vapours 12 4 5 Exhaust Fan if fitted 12 4 6 Door Switch if fitted 12 4 7 Loading and Unloading Chamber 13 5 0 Maintenance 14 5 1 General Maintenance 14 5 1 1 Cleaning 14 5 2 Calibration 14 5 3 After Sales Service 14 5 ...

Страница 3: ...eplacement 18 7 0 Fault Analysis 19 A Oven Does Not Heat Up 19 B Oven Overheats 19 C Recirculation Fans Continue to Run 20 8 0 Wiring Diagrams 21 9 0 Fuses and Power Settings 22 9 1 Fuses 22 9 2 Power Settings 22 10 0 Specifications 23 10 1 Environment 23 3 ...

Страница 4: ...djacent light glows or flashes to indicate that power is being supplied to the elements Exhaust fan if fitted see section 4 5 for full details Supply Light when the product is connected to the electrical supply the light in the adjacent switch glows 1 2 Warnings DANGER Electric shock Read any warning printed next to this symbol WARNING Risk of fatal injury DANGER Hot surface Read any warning print...

Страница 5: ... on lifting eyes NOTE This product contains Refractory Ceramic Fibre also known as Alumino Silicate Wool ASW For precautions and advice on handling this material see section 6 2 2 2 Siting and Setting Up Note This LGP oven is supplied with a floor stand that elevates it approximately 500 mm off the ground Place the product on a level surface in a well ventilated area Site away from other sources o...

Страница 6: ...of any obstruction 2 3 Electrical Connections Connection by a qualified electrician is recommended Some models may be ordered for 3 phase use which may be star or delta Check the product rating label before connection The supply voltage should agree with the voltage on the label and the electrical supply capacity should be sufficient for the current on the label A table of the most common fuse rat...

Страница 7: ...ST incorporate an earth ground Supply Terminal Label Cable Colour Supply Types Live Neutral Reversible or Live Live 1 phase L1 Brown to live to either power conductor For USA 200 240V connect L1 N L2 Blue to neutral to the other power conductor For USA 200 240V connect L2 PE Green Yellow to earth ground to earth ground Electrical Connection Details 3 phase L1 Black to phase 1 L2 Black to phase 2 L...

Страница 8: ...tation is as shown on the fan motor s If it is incorrect change the phase rotation of the incoming supply to achieve correct rotation The correct rotational direction is essential to achieve the specified temperature uniformity 8 ...

Страница 9: ...3 0 Temperature Controller If this product is fitted with a temperature controller instructions are provided separately 9 ...

Страница 10: ...required Please refer to the separate tem perature controller manual for details on controller operation 6 If the product is fitted with over temperature protection set the required over temperature setpoint according to the instructions detailed in the separate con troller manual 7 Turn on the external extraction The EXTERNAL EXTRACTION ON lamp will illu minate 8 If a setpoint has been set on the...

Страница 11: ...esented as a percentage e g 100 100 full power Note Please refer to the separate Nanodac controller manual for details on how to edit Ch1 User Val 4 2 Operating Cycle Switch on the mains isolator the mains on light should glow The controller becomes illuminated and goes through a short test cycle The circulation fan operates when the oven switch is switched on Both the mains on light and overtempe...

Страница 12: ...xplosive Vapours Unless your product includes the stoving and curing option this model is not suitable for drying or heat treatment applications where vapours are released that are combustible or which can form explosive mixtures with air Carbolite Gero manufactures other products suitable for these applications 4 5 Exhaust Fan if fitted To operate the exhaust fan use the fan switch on the control...

Страница 13: ...llow free air circulation Do not place loads on the chamber floor use the bottom shelf Remember that the shelves and work pieces may be hot use suitable gloves or other handling equipment Have a heat resistant surface available on which to place hot materials There is no physical stop to prevent shelf removal take care not to pull out a shelf accidentally 13 ...

Страница 14: ...epending on the controller fitted the controller instructions may contain calibration instructions 5 3 After Sales Service Carbolite Gero Service has a team of Service Engineers who can offer repair calibration and preventive maintenance of furnace and oven products both at the Carbolite Gero factory and at customers premises throughout the world A telephone call or email often enables a fault to ...

Страница 15: ...0 The power limit parameter OP Hi may be accessible to the operator but should not generally be altered In some cases the supply voltage may be outside the range 220 240 V or the 3 phase equivalent the power limit parameter may be set to a value other than 100 Do not increase the value to 100 see section 9 0 for details of power limit settings 15 ...

Страница 16: ...er levels may be encountered during maintenance or repair Whilst there is no evidence of any long term health hazards it is strongly recommended that safety precautions are taken whenever the materials are handled Exposure to fibre dust may cause respiratory disease When handling the material always use approved respiratory protection equipment RPE eg FFP3 eye protection gloves and long sleeved cl...

Страница 17: ... circuit board that contains an EMC filter The fuses are marked with their ratings Take care not to disconnect the wires leading from the EMC filter without first recording their positions they must be reconnected to the correct terminals 6 6 Element Replacement See section 6 3 for details on how to gain access l Disconnect the wires from the heating element terminals l Remove any starlock washers...

Страница 18: ...ion fitting with a new ferrule Feed in new thermocouple through from the back Tighten the compression fitting Refit the air guide Bend the thermocouple to match the shape of the previous part and refit any clips Refit the element access panel Compression fittings are only fitted to moisture extraction and stoving and curing products If fitted ferrules need replacing 6 8 Solid State Relay Replaceme...

Страница 19: ...ntroller There are no lights glowing on the controller The controller may be faulty or not receiving a supply due to a faulty switch or a wiring fault B Oven Overheats 1 Oven only heats up when the instrument switch is ON The controller shows a very high temperature The controller is faulty The controller shows a low temperature The thermocouple may have been shorted out or may have been moved out...

Страница 20: ...s Continue to Run Recirculation fans run when oven is switched OFF In order to prevent damage to the elements and fans the fans will continue to run to cool the heating elements if they were typically hotter than 400 C 20 ...

Страница 21: ...8 0 Wiring Diagrams For wiring diagrams please contact Carbolite Gero Service Please quote the serial number and model 21 ...

Страница 22: ...ng label for current See table below for fuse rating Model Phases Volts Main Fuse Rating Amps per Phase F1 LGP 7 730 3 phase No Neutral 200 63 LGP 7 730 3 phase Neutral 380 415 40 9 2 Power Settings The power limit settings parameter OP Hi for this model are voltage dependant The figures represent the maximum percentage of time that controlled power is supplied to the elements Do not attempt to im...

Страница 23: ...ensions External H x W x D mm Approx Capacity l LGP 7 730 700 21 900 x 900 x 900 1550 x 1920 x 1620 730 Large General Purpose Oven 10 1 Environment The models listed in this manual contain electrical parts and should be stored and used in indoor conditions as follows Temperature 5 C 40 C Relative humidity Maximum 80 up to 31 C decreasing linearly to 50 at 40 C 23 ...

Страница 24: ......

Страница 25: ...Notes Service Record Engineer Name Date Record of Work ...

Страница 26: ... us at the address below or ask your nearest stockist For preventive maintenance repair and calibration of all furnace and oven products please contact Carbolite Gero Service Telephone 44 0 1433 624242 Fax 44 0 1433 624243 Email ServiceUK carbolite gero com Carbolite Gero Ltd Parsons Lane Hope Hope Valley S33 6RB England Telephone 44 0 1433 620011 Fax 44 0 1433 621198 Email Info carbolite gero com...

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