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"A"
Valve
Figure 8: Typical Thermocouple-operated Gas Valve Connection Diagram
"B"
Valve
Shutoff
Valve
Pilot Burner
Gas Line
Figure 9: Typical Electrically-operated Gas Valve Connection Diagram
© 2019 BASO Gas Products
Part No. BASO-AN-Y99AB, Rev. B
44549-7
Reset
Button
Pilot Burner
Gas Line
Power
Source
Thermostat
Transformer
BASO
Power
Unit
Reset
Button
Y99AB-4 BASO® Test Kit
44549-8
Thermocouple
Lead
44549-7
BASO
Magnetic
Operator
44549-8
Thermocouple
Lead
Red
Black
Red
Black
www.baso.com
6
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