Whirlpool SPEEDCOOK GH6208 XR Technical Education page 88

Each of the three grill elements is controlled
by its own relay. At the instant of start, the
quartz heater and SoftStart relays are closed
(the grill relay is open). The quartz heater is
On when its relay is closed to the neutral side
INTERLOCK
PRIMARY
GRILL
SWITCH
THERMOSTAT
FUSE
LINE
L1
20 AMP
FILTER
B
B BR OR
2P0
As soon as the current in the circuit stabilizes,
the grill relay closes, and provides a "path of
least resistance" to the neutral side of the line
through the closed relay, providing a circuit for
the halogen grill element to operate. The cur-
rent through the SoftStart quartz element is
INTERLOCK
PRIMARY
SWITCH
THERMOSTAT
FUSE
LINE
L1
20 AMP
FILTER
B
B BR OR
2P0
The quartz heater element is controlled by its
relay during combination grill and microwave
cooking. When grilling begins, the quartz heater
relay closes, and activates the quartz heater
INTERLOCK
PRIMARY
SWITCH
THERMOSTAT
FUSE
LINE
L1
20 AMP
FILTER
B
B BR OR
2P0
NOTE: Dotted line indicates that the quartz heater relay is cycling.
Combination Grilling—The Quartz Heater Relay Opens & Closes Intermittently
QUARTZ HEATER
BL BR
HALOGEN GRILL ELEMENT
B
B
SOFTSTART QUARTZ TUBE
R
Instant Of Start—Grill Relay Is Open
GRILL
QUARTZ HEATER
BL BR
HALOGEN GRILL ELEMENT
B
B
SOFTSTART QUARTZ TUBE
R
Grilling—All Relays Are Closed
GRILL
QUARTZ HEATER
BL BR
HALOGEN GRILL ELEMENT
B
B
SOFTSTART QUARTZ TUBE
Depending On The Type Of Food Being Grilled
of the line. The halogen grill element is On
when the circuit is complete from the L1 side
of the line through the halogen element and
the SoftStart quartz element to the neutral
side of the line (the grill relay is open at the
instant of start).
QUARTZ
HEATER RELAY
4904
B
2 1
W
GRILL RELAY
4914
W
2
1
SOFTSTART RELAY
4924
B
1
2
opened due to the path of least resistance.
When grilling, the halogen element glows all
the time. The SoftStart quartz element will
never glow during the grill mode, although it
is still providing constant heat.
QUARTZ
HEATER RELAY
4904
B
2 1
W
GRILL RELAY
4914
W BL
2 1
SOFTSTART RELAY
4924
B
2 1
element. The quartz heater element cycles on
for up to 40% of the grilling time, depending on
the type of food that is being grilled.
QUARTZ
HEATER RELAY
4904
B
2 1
W
GRILL RELAY
4914
W
2 1
SOFTSTART RELAY
4924
R B
2 1
8-2
INTERLOCK
WAVEGUIDE CAVITY
SECONDARY
THERMOSTAT THERMOSTAT
SWITCH
BL BL BL
W
BL
INTERLOCK
WAVEGUIDE
SECONDARY
THERMOSTAT THERMOSTAT
SWITCH
BL
W BL
BL
INTERLOCK
WAVEGUIDE CAVITY
SECONDARY
THERMOSTAT
THERMOSTAT
SWITCH
BL BL BL
W
BL
N
LINE
FILTER
BL
W
1P0
N
CAVITY
LINE
FILTER
BL
W
1P0
N
BL
W
1P0