Seakeeper 16/18/12HD Installation Manual (90549-2)
Precautions
- Installer is responsible for supplying a dedicated seawater pump and associated plumbing. Seawater connections on the Seakeeper heat exchanger mate with ¾ in. (19 mm) hose. Seakeeper DC Seawater Pump, 24 VDC (P/N 30322) is available as an option from Seakeeper.
- There is no need to disconnect hose from glycol pump except to replace the pump. In this case, provision will need to be made to catch draining glycol as plumbing is disconnected. Use caution to avoid breaking plastic hose connections on pump casing.
- An output is available from wire harness ‘Seawater Pump-Out’ to power and automatically control seawater pump. This pump must operate on 24 VDC single-phase and consume less than 10 A. Pumps requiring other voltages or higher current can still be controlled by using this supply from motor drive to trigger an installer-supplied contactor, but a separate source of power must be provided.
- Maximum seawater pressure in heat exchanger is 30 psi (2.07 bar).
- Seawater flow requirement through heat exchanger is 4 GPM (15.1 LPM) minimum and 8 GPM (30.3 LPM) maximum under all operating conditions of the boat. When sizing sea water pump, installer should factor in losses for raw water plumbing. In addition to initial operation at dock, new installations should be checked to be within the flow requirements while vessel is at speed. Flows higher than 8 GPM (30.3 LPM) could affect heat exchanger life.