Reznor DV Operation Manual (for units built before August 2003) - Manual (Page 8)

Form O-DV/RDF/ADF, P/N 148385, Page 7
2. Remove the service panel and the junction box door. Disconnect the two-
line voltage power supply wires from the terminal block inside the junc-
tion box.
3. Disconnect the water feed line hose from the upstream side of the ball
valve.
4. Unscrew the four sheet metal screws holding the junction box to the
cooling module. Remove the junction box-pump-float switch assembly
(See Figure 8).
5. Dislodge the inlet basket screen from the pump and clean any buildup of
debris and dirt. Carefully remove the base cover plate from the bottom of
the pump. Using a mild soap solution, wash all deposits from the inside of
the pump and remove all debris from the impeller.
6. Reassemble the pump. Replace the parts in exact reverse order, being
careful that everything is returned to its proper position.
FIGURE 8 - Remove
Junction Box, Pump, and
Float Switch as an Assembly
(Actual assembly may not
appear exactly as in the photo.
Applies to evaporative
cooling module with float and
pump control system only. )
Pump
Junction Box (Note: Only 208V unit
will have a transformer in the junction box.)
Float
Switch
Pump
Motor
Carefully remove basket and
snap-on cover plate to clean
pump.
REFERENCE: Evaporative Cooling Module Troubleshooting
Guide, Paragraph 20, page 23.