Selector Switch Contacts - Viking VDSC305 Service Manual

8 POSITION SELECTOR SWITCH
(With shaft position and internal connections SELF CLEAN
Selector Switch closes Heating Element contacts
4-F, 1-N, 2-L2, 3-L2, and Door Lock Module
/Timer contacts J-6 energizing Relay #1.
Thermostat Clean Position closes Thermostat
cycling contacts 1-2 and normally open (N) -
common (C) energizing Relay #3.
Relay # 3 turns on the Clean indicator Light and
energizes Door Lock Module / Timer (PC Board)
relays LS1-L1 and LS2-M1, also supplying
120VAC to SEL on the PC board
Relays LS1 and LS2 turns the Door Lock Motor
on through the Auto Reset Thermostat contacts
2-1.
Door Lock Motor rotates opening SW1 and
closing SW2 and SW3.
Door Lock Switch #2 completes the circuit to
sensor #3 on the PC board. After 10 seconds
LS1-M1 opens, stopping the Door Lock motion.
Door Lock Switch #3 closes T1-T2 and T3-T4
energizing Power Relay #1 and the Cooling Fan
.Closing Power Relay #1's contacts supplies
240VAC to both Broil Elements and 120VAC to
the Bake Element.
CLEAN DOOR LOCK ABOVE 575*F
+/-25*F
Auto Reset Thermostat switches to contacts 1-3
turning on the Door Lock indicator Light and
disables the Door Lock Motor circuit.
CLEAN TEMPERATURE (875*F)
REACHED.
Door Lock Module / Timer opens T3 -T-4 and
T1-T2 turning off the Cooling Fan, now powered
by the Fan Limit Switch when needed, and opens
the circuit to the Power Relay #1 disabling the
Heating Elements.
FINAL BELOW 575*F +/-25*F
Auto Reset Thermostat switches to contacts 1-
2, turning off the Door Lock Motor circuit
through Door Lock Motor / Timer Relay LS2-M-
1. Door Lock Motor operates until 2 seconds
after sensor 4 is signaled by VC that the Door
Lock /Timer switches LS2- M1 and LS1-L1 open
and the Timer resets.
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