Carbolite PTC 12/20/150 - Manual (Page 3)

PTC
MF11 – 3.08 3
2.0 I NSTALLATION
2.1 Unpacking
Unpack the furnace and remove the transit clamp from the working end of the furnace as follows:
- loosen the locking nut on the central clamp bolt;
- turn the bolt clockwise with a screwdriver to release the force on the clamping device;
- remove the two screws which hold the transit clamp to the furnace;
- carefully withdraw the transit clamp;
- retain the clamp.
If at any time the furnace is returned for repair or otherwise subject to arduous travel, refit the
transit clamp. The furnace must be cold before the clamp is fitted.
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 Setting Up
Underneath the furnace is a dual voltage switch. Set this correctly for the supply to be used: 115V
for 110-120V, 230V for 220-240V.
Ensure that there is free space around the furnace. Do not obstruct any of the vents: 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.
Do not place the furnace on an inflammable surface.
2.3 Electrical Connections
The furnace requires a single-phase A.C. supply with earth (ground). The supply may be Live to
Neutral non-reversible, Live to Neutral with reversible plug, or Live to Live. Check that the
supply voltage is compatible with the voltage on the furnace rating label, and that the voltage
switch referred to above is correctly set.
The furnace is internally fused at 10 Amps. A 110-120V supply should be fused externally at 10
Amps. A 220-240V supply should be fused externally at 5 Amps.
In the event of the furnace being used on 230V when the voltage switch is set to 115V, a fast-blow
fuse protects the circuit. This is located in a panel mounted holder adjacent to the voltage switch.
The furnace is supplied with a plug-in cable which may be wired directly to an isolator which
operates on both conductors, or fitted with a line plug which may be quickly disconnected from the
supply. The isolator or the plug should be within easy reach of the operator. The supply must
incorporate an earth (ground).
Connect the supply as follows:
supply type
Cable colour Terminal
label Live-
Neutral Reversible or Live-Live
Brown L to live to either power conductor
Blue N to neutral to the other power
conductor
Green/Yellow PE to earth to earth