beautypg.com

Fan-aspirated iss maintenance, Annual maintenance, Fan-aspirated iss troubleshooting – DAVIS Vantage Pro ISS Fan-Aspirated Add., 2003 & later User Manual

Page 14

background image

Page 14

Addendum, Rev B

A low-current fan (#7759) is available that uses less power than the standard
fan. This allows the solar-powered Fan-Aspirated ISS to run for a longer period
of time during darkness. The low-current fan is recommended for use in high
latitudes during the Winter months, in climates that experience extended peri-
ods of cloudy weather, or for any location with limited solar charging.

Fan-Aspirated ISS Maintenance

Keep the surfaces clean, since the Fan-Aspirated Radiation Shield is less
effective when the surfaces are dirty. Remove dust from the solar panel and
the shield with a damp cloth.

Remove any debris obstructing air flow through the radiation shield, e.g.,
leaves, twigs, webs, and nests.

Avoid spraying insect killer of any kind into the radiation shield as this
may damage the sensors and the shield.

Once a year: replace the motor (Part # 7758 or #7759), batteries (solar-pow-
ered models only), and remove any debris lodged inside the unit.

Annual Maintenance

1.

Retrieve your Fan-Aspirated ISS and place on a stable work surface.

2.

Disassemble the Radiation Shield (See page 4).

3.

Unplug the old motor and remove from it from the Radiation Shield (See
page 9).

4.

Install the new motor/fan assembly (#7758 or #7759) and plug it into the
Junction Board (See page 9).

5.

Remove the old fan batteries (See page 8).

6.

Install new batteries (NiCad C-cells).

7.

Assemble the Radiation Shield (See page 9).

8.

Re-mount the Fan-Aspirated Radiation Shield in its previous location.

Fan-Aspirated ISS Troubleshooting

If you are experiencing problems with your Fan-Aspirated ISS, first be sure to
check all cable connections. If you are unable to solve the problem, please call
Davis Technical Support. We’ll be glad to help. Most questions can be
answered while you’re on the phone. You can also email us for support, or visit
our website. Sorry, we are unable to accept collect calls.

Note: Please do not return items to the factory for repair without prior authorization.

ISS Fan Rev B.fm Page 14 Thursday, November 14, 2002 4:29 PM