Carbolite CR Series - Manual (Page 3)

Clean Room Ovens
MF21 – 3.07
3
2.0 I NSTALLATION
2.1 Unpacking & Handling
Lift the unit by its base. Do not use the door or any other projecting cover or component to support the
equipment when moving it. Use two or more people to carry the oven where possible. Remove any packing
material from the inner chamber before use, and locate the shelves as required.
Larger models: the unit may be lifted by a fork lift truck from the front or back.
NOTE: This product contains Refractory Ceramic Fibre (better described as Alumino Silicate Wool) for
precautions and advice in handling this material see the ‘Repairs and Replacements’ section.
2.2 Siting & Setting Up
Place the oven on a level surface. If overtemperature protection is not fitted, ensure that the unit can be
directly observed.
Ensure that there is free space around the oven. Ensure that any vents in the oven are not obscured.
Ensure that the oven is placed in such a way that it can be quickly switched off or disconnected from the
electrical supply - see below.
2.3 Electrical Connections
Connection by a qualified electrician is recommended.
All ovens 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. The 450 litre models and above may be
ordered for three phase supply with neutral (e.g. 380/220V) or for three phase without neutral (delta).
Check the oven rating label before connection. The supply voltage should agree with the voltage on the
label, and the supply capacity should be sufficient for the amperage on the label.
The supply should be fused at the next size equal to or higher than the amperage on the label. A table of
the most common fuse ratings is also given in section 8.1 of this manual. Where a supply cable is present
there are internal supply fuses; customer fusing is preferred but not essential.
Oven with supply cable: either wire directly to an isolator or fitted with a line plug.
Oven without supply cable: a permanent connection to a fused and isolated supply should be made to the
internal terminals after temporary removal of the back panel.
Connection by line plug: the plug should be within 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 power conductor
N Blue To neutral to the other power conductor
PE Green/Yellow To earth (ground) to earth (ground)
supply Terminal label Cable colour
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 an oven ordered for three phase use to a single phase supply or to the wrong type
of three phase supply.