OPERATION
MANUAL
Product:
Document #:
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SEAKEEPER 26 / 20HD
90266
7
2 of 3
Section 6: SEAKEEPER SPECIFICATIONS
Arrangement
The Seakeeper 26 consists of the Flywheel, Enclosure, Foundation, Electronics, Brake, Cooling,
and Cover Subsystems.
Installation Location
The Seakeeper is a torque device and does not have to be installed in a specific hull location or
on the centerline. However, the Seakeeper should not be installed forward of the longitudinal
center of gravity in a planing vessel.
Mounting Dimensions
See Seakeeper Drawing 90271 for bolt-in installation details.
See Seakeeper Drawing 90272 for bond-in installation details.
Loads
The installer is responsible for designing the foundation to which the Seakeeper is attached and
for ensuring that this foundation can safely transfer the concentrated Seakeeper loads from the
frame to the adjacent hull structure. Loads that the Seakeeper imposes on the hull structure are
explained on Seakeeper Drawings 90271 and 90272; these loads do NOT include vessel motion
accelerations, such as vertical slam loads which can be high for higher speed vessels.
Cooling
The Seakeeper bearings, Motor Drive Box, and hydraulic manifold are cooled by a closed water
/ glycol mix cooling loop that incorporates a sea water heat exchanger. The installer is responsible
for providing 15
– 30 lpm (4 – 8 gpm) raw water at ambient sea temperature and 1.4 Bar (20 psi)
maximum pressure to the heat exchanger.
Electrical
The installer is responsible for supplying 208-230 VAC, 50/60 Hz, single phase power on a 20A
service to the Motor Drive Box and 24 VDC @ 10A service to the Seakeeper Control System.
Separate circuit breakers should be used for each Motor Drive Box in multiple Seakeeper
installations. Similarly, separate circuit breakers should be used for each Seakeeper Control
System in multiple Seakeeper installations.
