9.
When using these instructions refer to the SEL-TI wiring
schematic.
1.
Supply Voltage is sent to the primary of the 120 VAC
transformer.
2.
120 VAC is sent to the normally open contacts of the
Heat Contactors, C1 and C2.
3.
120 VAC is sent from the secondary of the 120VAC
transformer through the 3 amp fuse to
■
The primary of the 24 VAC transformer
❏
24 VAC is sent from the secondary of the
24VAC transformer through the 1.25 or1.5 amp
fuse to the on/off switch.
■
Contacts of the R1 Heat Relay
4.
120 VAC is sent from the secondary of the 120 VAC
transformer to the optional Power Tilt Circuit (See step
9).
5.
With the On/Off switch in the On position.
■
24 VAC is sent through the normally closed high limit
switch to the mercury switch.
■
If the skillet is in the down position then 24 VAC is
sent through mercury switch to pin 9 on the thermostat.
6.
If the skillet is calling for heat the 24 VAC is sent from
pin number 10 to RI Heat Relay.
■
The normally open contacts of the Heat relay close
sending 120 VAC to the Heat contactor coils C 1 and
C2.
7.
The Contactor close and supply Voltage is sent to the
elements.
■
The elements heat until the thermostat is satisfied.
8.
When thermostat is satisfied, 24 VAC is removed from
pin 10 on the thermostat and the heat circuit is de-ener-
gized.
9.
If the skillet has the Power Tilt option and is in the down
position, 120 VAC is sent from the secondary of the 120
VAC transformer through the circuit breaker and the up
limit switch to the tilt switch.
10.
With the tilt switch in the Up position
■
120 VAC is sent to the Bridge Rectifier
❏
115 VDC is sent from the rectifier through the
30-ohm resistor to the normally open RY10 and
RYI I relay contacts.
■
120 VAC is sent to the RY10 relay coil.
■
The normally open RY10 contact close and 90 VDC
is sent to the DC motor
■
The DC motor is energized and the skillet tilts until
the switch is released or the up limit switch opens.
11.
With the Tilt switch in the Down position
■
120 VAC is sent to the Bridge Rectifier
❏
115 DC is sent from the rectifier to the normally
open RY 10 and RY 11 relay contacts.
■
120 VAC is sent to the RY11 relay coil.
■
The normally open RY 11 contact close and the
polarity of the 90 VDC is reversed.
■
The DC motor is energized and the skillet lowers until
the switch is released or the Down limit switch opens.
TROUBLESHOOTING AND
MAINTENANCE PROCEDURES
The following trouble shooting guide and maintenance procedures
are meant to be used by Qualified Service Technician
For periodic maintenance recommendations see “Operators Manual”.
SEQUENCE OF OPERATIONS
