AAF, OAF, GSM, VMF
I
NSTALLATION
2.1 Unpacking & Handling
When unpacking or moving the furnace always lift it by its base. Never lift it by the door. Use two
people to carry the furnace where possible. Remove any packing material from the door gear and
furnace chamber before use.
2.2 Siting & Setting Up
Place the furnace in a well ventilated room, away from other sources of heat, and on a surface
which is resistant to accidental spillage of hot materials. Do not mount the furnace on an
inflammable surface.
Ensure that there is free space around the furnace. Do not obstruct any of the vents in the control
section: they are needed to keep the controls cool.
Ensure that the furnace is placed in such a way that it can be quickly switched off or disconnected
from the electrical supply - see below.
If the chimney is supplied unfitted, then fit it into the hole in the top of the furnace case. If the
furnace is to be used to heat substances which emit fumes, then a fume extraction duct of about
150mm inlet diameter may be placed directly above the chimney outlet. Do not make a sealed
connection to the furnace chimney as this causes excessive airflow through the chamber and gives
poor temperature uniformity.
2.3 Electrical Connections
Connection by a qualified electrician is recommended.
All 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. The OAF models and
AAF 11/7 may alternatively be ordered for use on two phases out of a 3-phase with neutral supply.
The model AAF 11/18 may also be ordered for 3-phase supply: see section 2.4.
Check the furnace 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.
Furnace with supply cable: either wire directly to an isolator or fitted with a line plug.
Furnace without supply cable: a permanent connection to a fused and isolated supply should be
made to the internal terminals after temporary removal of the furnace 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 both
live conductors (two 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
2- or 3-phase
L1
Black
to phase 1
L2
Black
to phase 2
L3
Black
to phase 3
except 2-phase
N
Light Blue
to neutral
except delta
MF06
3
Summary of Contents for CARBOLITE AAF 11/18
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