John Wood Envirosense Power Direct Vent (May 2010 or later) - Manuel (Page 57)

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CAUTION
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND
DANGEROUS OPERATION. VERIFY PROPER OPERATION AFTER SERVICING.
Figure: 40 POWER VENT WIRING SCHEMATIC
WIRING DIAGRAM