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4. Insert each NiCd ‘C’ battery into its battery bay. The flat side of the battery is the
(-)
side
and the side with the button sticking out is the
(+).
It may be necessary to push the
battery tabs in slightly to make the batteries fit properly. Once the batteries are installed,
install the O-ring into the groove for each battery compartment
(Fig. 17)
Figure 17
5. Install the battery covers by placing them on top of each battery. There is a notch in the
middle of each cover that should face towards the fan for proper orientation. Secure
each battery cover with (2) #4-3/8” self tapping screws.
Reassemble the radiation shield
1. Take the fan plate and place it back on the radiation shield plates. Route the
TEMP/HUM sensor wire so that it sits flat in the groove to the left of the fan PCBA. Place
the fan back in its appropriate spot, and plug its connector into the PCBA in the spot
marked MOTOR.
FAN MAY SPIN AT THIS POINT.
(Note tab on connector – it can
only be inserted one way). Additionally, prepare the strain relief that was removed in
Section B, Step 1 so that it holds the wire for the TEMP/HUM sensor. Do not screw the
strain relief down at this point, as the solar panel wire will also be included.
(Fig. 18)
