Xylem Rule 27SA Instruction Manual page 5

DANGER: This product is not intended for damage control or to deal with flooding resulting
from hull damage. This product is intended to be used in Bilge Pumping Systems for small craft
with a hull length up to 24 meters, as described within the introduction and scope of ISO 15083.
Bilge Pumping Systems, as specified in ISO 15083, are limited to normal amounts of water
in an intact boat due to spray, rain, seepage, spillage, and occasional small amounts of water
shifting from boat movements in heavy weather. Use of product in any other way could result in
flooding, catastrophic damage to craft, serious personal injury, or death.
WARNING: This pump is designed for use with fresh water and salt water ONLY. Use with
any other hazardous, caustic, or corrosive material could result in damage to the pump and the
surrounding environment, possible exposure to hazardous substances and injury.
WARNING: Check the function of all bilge pumps at regular intervals. Clear pump inlets from
debris. If seacocks are fitted in the fore and aft peak bulkheads, they shall be kept closed and
shall only be opened to let water drain into the main bilges.
How Fully Automatic
Bilge Pumps Work:
Rule Automatic bilge pumps eliminate the need for
a separate float switch to activate the pump. Once
power is supplied, starting and stopping is completely
automatic. The pump checks for water every 2 ½ minutes
(20 seconds for model 25SA-6WC) by turning on for
a second and measuring load against the impeller. If
water is present, the pump remains on until the water is
removed. Thereafter the pump resumes its 2 ½ minute
check cycle. The automatic pumps feature two positive
leads: an automatic (brown) and a manual override
(brown with a white stripe).
The third black wire is the ground/negative.
5
2.5 min OFF
ON
0.5 sec
2.5 min OFF
0.5 sec ON
2.5 min
OFF
0.5 sec ON
.75"
(2cm)
ON
1.5"
(3.8cm)