Carbolite Peak Series - Manual (Page 11)

Peak Ovens
7.0 C IRCUIT D IAGRAMS
7.1 Single Phase (overtemperature control: none or hydraulic thermostat)
7.2 Single Phase (overtemperature control: digital)
7.3 Two-phase with Neutral
As 3-phase with neutral (7.4), but with phase L3 not present, and with two SSRs and element
circuits.
Note on Hydraulic Thermostat. When used over 16 Amps or in a 2- or 3-phase
model, the oven is fitted with a contactor, with the hydraulic thermostat in the coil
circuit – similar to 7.2.
Instrument Switch
temperature
controller
SSR
e
l
e
m
e
n
t
(s)
F1
F2
N
L
PE
Filter
thermocouple
Hydraulic
thermostat
Warning light
Hydraulic
t/stat o/temp
only
Reset
button
Fan motor
Fan models
only
coil
Instrument Switch
temperature
controller
SSR
e
l
e
m
e
n
t
(s)
F1
F2
N
L
PE
Filter
thermocouple
Fan motor
Fan models
only
overtemp.
controller
thermocouple
relay or
contactor