Circuit Diagrams - Carbolite HRF 7/22 Installation, Operation & Maintenence Manual

HRF
C D
IRCUIT IAGRAMS
7.1 HRF 7/22 - no overtemperature
Filter
(if fitted)
F1
N
L
E
Supply light
Instrument Switch
7.2 HRF 7/22 - with overtemperature
Filter
(if fitted)
F1
N
L
E
Supply light
Instrument Switch
7.3 Higher Voltages
For 254V (or above) an isolating transformer is fitted in the
control circuit after the F2 fuses.
8.0
10
BU
R
F2
Capacitor
BU
Fan
BR
Motor
temperature
controller
BU
R
F2
Capacitor
BU
Fan
BR
Motor
overtemp.
controller
temperature
controller
SSR
thermocouple
contactor
coil
thermocouple
SSR
thermocouple
e
l
heat
e
on
m
e
n
t
(s)
e
l
heat
e
on
m
e
n
t
(s)
F2
transformer
F2
Supply light &
Instrument Switch
MF05