Seawater Pump Connection Instructions

Reference Documents & Drawings:

• 90511 – Seakeeper 1 Cable Block Diagram
• 90512 – Seakeeper 1 Cooling Water Schematic

Seawater Pump 12 VDC Power Source Requirements

Power Source	Battery Bank, 12 VDC, Marine, Deep Cycle
Voltage Range	10 – 16 VDC
Current Rating	Max 15 A rating
Overcurrent Protection	Per pump specification, max 15 A

Seawater Pump 12 VDC Power Input Connection Instructions

1. Connect Cable 7 (P/N: 30327) to Seakeeper 1 “SW Pump DC In” as shown in Drawing No. 90511 – Seakeeper 1 Cable Block Diagram, with overcurrent protection corresponding to seawater pump selected.
2. Connect the 14 AWG plus conductor (red) through dedicated overcurrent protection device (customer-supplied), maximum of 15 A, to dedicated battery isolation switch.
   1. The Cable 1, 2 AWG B+ conductor (red), is capable of carrying the current for both the High Current and Seawater Pump from the 12 VDC power supply to the battery isolation switch.
3. Connect the 14 AWG minus conductor (black) directly to battery minus terminal or DC main negative bus.

Seawater Pump 12 VDC Power Output Connection Instructions

1. Connect Cable 5 to the Seakeeper 1 “SW Pump 12 VDC Out” for DC power output to the seawater pump. Cable 5 is a 2 x 16 AWG cable, 16 ft (5 m) length, with a size 16 female Deutsch plug.
2. Pumps rated at 12 VDC, 15 A maximum, customer-supplied, must be configured with a Deutsch DT series, 2-pin receptacle to mate with the connector shown in the following figure.

3. Cable 5 must be routed and installed in the vessel from the Seakeeper 1 “SW Pump 12 VDC Out” Deutsch connector (pins end) to the DC seawater pump cable Deutsch connector (socket end).
   1. Connect Cable 5 plug end (socket end) to the customer-supplied receptacle end (pins end). The recommended wiring is shown in the following figure.

4. Seakeeper DC Seawater Pump Assembly (P/N 30331), which is prewired for Cable 5, is available as an option with the Seakeeper 1.