{"id":17729,"date":"2023-12-05T15:20:37","date_gmt":"2023-12-05T15:20:37","guid":{"rendered":"https:\/\/manuals.seakeeper.com\/seakeeper\/seakeeper-10-5-installation-manual-90841-1-draft-copy\/cooling-installation\/connecting-seawater-to-heat-exchanger\/"},"modified":"2025-08-11T12:37:42","modified_gmt":"2025-08-11T12:37:42","slug":"connecting-seawater-to-heat-exchanger","status":"publish","type":"page","link":"https:\/\/manuals.seakeeper.com\/seakeeper\/seakeeper-14-installation-manual-90873-1\/cooling-installation\/connecting-seawater-to-heat-exchanger\/","title":{"rendered":"4.3 Connecting Seawater to Heat Exchanger"},"content":{"rendered":"\n

Refer to Figure 31 for typical Seakeeper<\/span> 14 seawater plumbing arrangement.<\/p>\n\n\n\n

    \n
  1. Connect seawater from installer-supplied pump to lower \u00be in. (19 mm) hose barb on heat exchanger. (See Figure 1) Use the same practices as other below waterline seawater plumbing. Required flow rate is 4 GPM (16 LPM) minimum and 8 GPM (30.3 LPM) maximum.<\/li>\n\n\n\n
  2. Connect seawater discharge (upper hose barb) to overboard drain. (See Figure 29) Use the same practices as other below waterline seawater plumbing.<\/li>\n\n\n\n
  3. In addition to initial operation at dock, new installations should be checked for minimum 4 GPM (16 LPM) flow while vessel is at speed and when backing down. If no other method of confirming flow is available, discharge line may be temporarily diverted to a bucket. Flow is calculated from time to fill a known volume. A self-priming seawater pump (customer\/installer supplied) may be required due to installation location to maintain water flow in all underway conditions where cavitation near the intake may occur and potentially cause an air-lock condition restricting seawater flow to the heat exchanger.<\/li>\n\n\n\n
  4. Inspect raw water plumbing after sea trial for any signs of leakage.<\/li>\n\n\n\n
  5. Heat exchanger contains removable endcaps to provide access for cleaning the tube bundle.<\/li>\n<\/ol>\n\n\n
    \n
    \"\"
    Figure 31 <\/strong>– Seakeeper<\/span> 14 Typical Plumbing Arrangement<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n

    Seakeeper<\/span> Optional DC Seawater Pump (P\/N 30322)<\/h3>\n\n\n\n
      \n
    1. Seakeeper<\/span><\/span> offers a self-priming DC Seawater pump operated at 24 VDC for the Seakeeper<\/span><\/span> 14 (Figure 32).<\/li>\n\n\n\n
    2. The pump assembly is pre-wired for connection to Seakeeper<\/span><\/span> 14 Seawater Pump Output Cable, “SW Pump Output” and includes a seawater strainer and various fittings. The pump specifications are as follows:<\/li>\n<\/ol>\n\n\n\n
      Volts<\/td>24 VDC<\/td><\/tr>
      Rated Flow<\/td>6 GPM (nominal)<\/td><\/tr>
      Overcurrent Protection Rating<\/td>10 A<\/td><\/tr>
      Ignition Protection<\/td>ISO 8846 or equivalent<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n
      \n
      \"\"
      Figure 32 <\/em><\/strong>– Seakeeper<\/span> 14 DC Seawater Pump<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n

      NOTE:<\/strong> Only use Jabsco-provided threaded fittings with DC Seawater Pump 30322.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Refer to Figure 31 for typical Seakeeper 14 seawater plumbing arrangement. Seakeeper Optional DC Seawater Pump (P\/N 30322) Volts 24 VDC Rated Flow 6 GPM (nominal) Overcurrent Protection Rating 10 A Ignition Protection ISO 8846 or equivalent NOTE: Only use Jabsco-provided threaded fittings with DC Seawater Pump 30322.<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":17723,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"manual":[326],"model":[],"document_type":[],"hidden":[],"class_list":["post-17729","page","type-page","status-publish","hentry","manual-seakeeper-14-installation-manual-90873-1"],"acf":[],"_links":{"self":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/17729","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/comments?post=17729"}],"version-history":[{"count":1,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/17729\/revisions"}],"predecessor-version":[{"id":17827,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/17729\/revisions\/17827"}],"up":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/17723"}],"wp:attachment":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/media?parent=17729"}],"wp:term":[{"taxonomy":"manual","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/manual?post=17729"},{"taxonomy":"model","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/model?post=17729"},{"taxonomy":"document_type","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/document_type?post=17729"},{"taxonomy":"hidden","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/hidden?post=17729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}