Carbolite VMF Series - Manual (Page 13)

AAF, GSM, VMF
MF06 3.32
13
F1
N
F2
L1
PE
transformer
Filter (if fitted)
F2
Instrument Switch
7.0 C IRCUIT D IAGRAMS
EMC Filters (if fitted): dependent on the model there may be one filter, or more than one fitted in
parallel. The circuit diagram examples do not show multiple filter arrangements.
7.1 Single phase
NOTE – models before mid-2002: in some models two door switches were fitted directly in the
element circuit, instead of a single switch and contactor.
7.2 2-phase with neutral
7.3 Higher Voltages (e.g. 254V)
For single phase models of 254V or above, a control
circuit transformer is included as follows:
for AAF 11/18 see diagram 7.4
Instrument Switch
coil
temperature
controller
overtemp.
controller
door
switch
SSR
e
l
e
m
e
n
t
(s)
heat
on
F3
F1
F2
F3
N
L
PE
Filter (if fitted)
contactor
or relay
if fitted
thermocouple
thermocouple
e
l
e
m
e
n
t
(s)
e
l
e
m
e
n
t
(s)
F1
N
L2
F2
L1
PE
Instrument Switch
coil
temperature
controller
overtemp.
controller
door
switch
SSR
heat
on
F3
SSR
heat
on
F3
Filter (if fitted)
if fitted
thermocouple
thermocouple
contactor