Lennox Hearth DIRECT-VENT RAVENNA SDVI33/40 - Manual (Page 23)

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NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Electrical Requirements:
This gas appliance operates without an outside power source, however
the blower requires a 120 Volt electrical service outlet. This appliance,
when installed, must be electrically grounded in accordance with local
codes, or in the absence of local codes, the National Electrical Code ANSI/
NFPA 70 ­ latest edition. (See Operating Options for thermostat and ON/
OFF switch information).
CAUTION: Label all wires prior to disconnection when servic-
ing controls. Wiring errors can cause improper and dangerous
operation.
ATTENTION: Au moment de l'entretien des commandes,
étiquetez tous les fils avant de les débrancher. Des erreurs
de cáblage peuvent entraîner un fonctionnement inadéquat et
dangereux.
Fuel Conversion
Converting this appliance between natural gas and LP can be accomplished
by installing a conversion kit (valve regulator and burner orifice). Only a
qualified service technician should perform the conversion.
Conversion Kit: Please see instructions provided with conver-
sion kit.
Blower Removal
Unplug the power supply cord from the electrical outlet prior to remov­
ing the blower. The blower can be accessed through the back wall of the
firebox.
Remove the insert face, glass door, log set and brick panels. All of these
items are fragile so handle them with care. Next, remove the nine allen
head screws around the outside of the panel fastened to the back wall
of the firebox. Rotate the top of this panel toward the front, remove the
two wires connected to the blower and then lift the panel with the blower
attached out of the firebox. To reinstall the blower, repeat these steps in
the reverse order.
Blower Wiring Schematic
Figure 21
Green (Ground)
Black (Hot) From Power Source
Speed Control
White (Neutral)
Black
Blower
White
Blower Snap Switch