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35
SEQUENCE OF OPERATION GCCO-C
Power switch turned to “ON” position.
Power to oven
light
switch.
120 volts to rows
“A”
and
“B”
of 24 pin
terminal block.
120/24-volt
transformer
energized.
24 volts to rows
“C”
and
“D”
of 24 pin
terminal block.
24 volts to common of
back-up toggle switch.
24 volts to pin
“A”
on
back-up relay.
24 volts to
6
(Johnson Control),
TH
(Channel Products), and
ground
of
spark module.
Spark module begins sparking at pilot burner.
24 volts to pilot valve coil of
combination gas valve.
Pilot valve opens.
Gas flows to
pilot
burner.
Pilot burner lights.
Pilot light confirmed by spark module.
12 to 13 micro amps on pin
4
(Johnson Control), and
Sens
(Channel products).
24 volts from pin
3
(Johnson Control) and
MV
(Channel products) to common of
back-
up toggle switch.
Back-up toggle switch “OFF”.
Circuit 1
24 volts across
“D”
and
TP4, TP5,
and
TP6.
24 volts to
motor relay
through
door switch.
Motor centrifugal switch closes.
Circuit 2
24 volts to terminal
“B”
on
back-up relay.
Back-up
relay closes, energizing
120/12 volt transformer.
12 volts to
TP1.
Computer starts.
Product selected from
Control panel.
24 volts from
TP5
through safety thermostat, through centrifugal switch in motor, to
main valve .coil of
gas combination valve.
Main valve opens.
Gas flows to
main burners.
Main burners
light.
Back-up toggle switch “ON”.
Circuit 1
24 volts to
motor relay.
Motor relay
closes.
Motor centrifugal switch closes.
Circuit 2
24 volts to
Back-up thermostat.
Temperature set on
Back-up thermostat.
24 volts from
Back-up thermostat
through safety thermostat, through centrifugal switch
in motor to main valve coil of
Gas combination valve.
Main valve opens.
Gas flows to
main burners.
Main burners
light.
Summary of Contents for GCCO-C
Page 29: ...29 GENERAL CONT D ONE PAN TWO PAN THREE PAN FOUR PAN FIVE PAN ...
Page 59: ...59 TECHNICAL DATA CONT D GCCO C TEST POINT LAYOUT TP 2 TP 1 TP 3 TP 4 TP5 TP6 TP7 ...
Page 61: ...61 WIREING DIAGRAM GCCO T ...
Page 62: ...62 WIRING DIAGRAM GCCO AP ...
Page 63: ...63 WIRING DIAGRAM GCCO SII ...
Page 64: ...64 WIRING DIAGRAM GCCO C ...
Page 65: ...65 WIRING DIAGRAM GCCO PP ...
Page 66: ...66 WIRING DIAGRAM GCCO PT ...