Carbolite Gero Ashing Furnace OAF 11/2

Disconnect the furnace from the supply

Solid-state Relay Disconnection

Make a note of how the wires are connected to the solid state relay

Disconnect the wires from the solid state relay

Remove the solid state relay from the base panel or aluminium plate

Lift the furnace door to the open position

Remove the door cover from the plug carrier assembly

Slide the old door plug upwards out of its carrier

Slide the new plug into the carrier assembly ensuring it is the correct way up

Ensure that the ventilation is good when first heating the furnace after replacement

Wear an anti-static wrist strap

Avoid any possibility of damage by static electricity

Remove screws to separate controller from base

Ease apart the two lugs at the side

Grip the instrument and withdraw it from its sleeve

Push in the replacement controller

Consult circuit diagram (section 7.0) to identify fuse types.

Refer to section 8.1 for the list of correct fuses.

Consult an electrician to check internal circuits if any fuse has failed.

Replace failed fuses with the correct type.

Consult Carbolite before fitting larger capacity fuses for safety reasons.

Is the power limit parameter OP.Hi accessible to the operator?

Is the current power limit set to zero for demonstration purposes?

Ensure the power limit is not set higher than the design level.

Adjust the power limit to its standard value if it was set to zero.

Is the power limit set to 100% over all common voltages?

Has the power limit been adjusted according to section 8.2 guidelines?