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10
ELECTRICAL CONNECTIONS (continued)
Figure 5d & 5e - Tubular Units Equipped with Hot Surface Pilot (Single Stage):
100/400 Unit Sizes with Natural Gas and Propane (LP) Gas
Figure 5d
(Primary)
[HWSV9540/SV9640
Hot Surface Ignition Gas Controls]
Figure 5e
(Alternate)
[HWSV9500/SV9600/SV9501/SV9601
Hot Surface Ignition Gas Controls]