{"id":14242,"date":"2023-03-17T16:09:31","date_gmt":"2023-03-17T16:09:31","guid":{"rendered":"https:\/\/manuals.seakeeper.com\/seakeeper\/seakeeper-3-installation-manual-90378-7-sk3-cbro-draft\/4-0-cooling-installation\/4-2-installation-considerations\/"},"modified":"2025-06-17T17:21:20","modified_gmt":"2025-06-17T17:21:20","slug":"4-2-installation-considerations","status":"publish","type":"page","link":"https:\/\/manuals.seakeeper.com\/seakeeper\/seakeeper-3-installation-manual-90378-7\/4-0-cooling-installation\/4-2-installation-considerations\/","title":{"rendered":"4.2 Installation Considerations"},"content":{"rendered":"\n
    \n
  1. The installer is responsible for supplying a dedicated positive displacement seawater pump (or centrifugal pump and an electric isolation valve) and associated plumbing. Seawater connections on the Seakeeper<\/span><\/span> heat exchanger mate with \u00be in. (19mm) hose. An optional seawater pump can be purchased through Seakeeper<\/span><\/span>, P\/N30331.<\/li>\n\n\n\n
  2. Unintended seawater flow from the seawater pick-up during the vessel’s underway operation is unacceptable<\/strong> and may cause stress to internal components<\/strong>. Unintended flow should be mitigated through pump selection, using a diaphragm-style pump or an inlet control valve. Continuous cooling flow from shared through-hull plumbing, a centralized chiller, or a cooling system is unacceptable for on-demand Seakeeper<\/span><\/span> models.<\/li>\n\n\n\n
  3. Seawater connections on the Seakeeper<\/span><\/span> heat exchanger mate with \u00be in. (19 mm) hose.<\/li>\n\n\n\n
  4. The seawater pump operates on 12 VDC with a max overcurrent protection rating of 15 A.<\/li>\n\n\n\n
  5. The seawater pump is powered by Seawater Pump Output Cable, via \u201cSW Pump 12 VDC Out\u201d connector on the Seakeeper<\/span><\/span> 3, as outlined in Electrical Installation Section.<\/li>\n\n\n\n
  6. A dedicated through-hull fitting should be installed for each Seakeeper<\/span><\/span> unit onboard the vessel to ensure sufficient seawater flow to each unit.<\/li>\n\n\n\n
  7. It is recommended that the seawater pump is located below the waterline, as close to the baseline of the vessel as practically possible, to maintain positive inlet pressure on the pump in all operating conditions.<\/li>\n\n\n\n
  8. A self-priming seawater pump may be required to maintain water flow in all underway conditions. Cavitation can occur at the seawater inlet and potentially cause an air-lock condition restricting seawater flow to the heat exchanger.<\/li>\n\n\n\n
  9. Maximum allowed seawater pressure in heat exchanger is 20 psi (1.4 bar).<\/li>\n\n\n\n
  10. Seawater flow requirement through heat exchanger is 2 GPM (7.6 LPM) minimum and 6 GPM (22.7 LPM) maximum under all operating conditions of the boat.<\/strong>

    When sizing seawater pump, installer should factor in losses for raw water plumbing. In addition to initial operation at dock, new Seakeeper<\/span><\/span> installations should be checked to be within the flow requirements while vessel is at speed. Flows higher than 6 GPM (22.7 LPM) could affect heat exchanger life.<\/li>\n\n\n\n
  11. Vented loops (Figure 23) are optional and should only be considered with centrifugal style pumps. Self-priming or positive displacement style pumps do not require a vented loop, this includes Seakeeper<\/span><\/span> P\/N 30331.<\/li>\n<\/ol>\n\n\n
    \n
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    Figure 23 – <\/em><\/strong>Typical Seawater Plumbing Arrangement<\/em><\/figcaption><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":14199,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"manual":[293],"model":[],"document_type":[],"hidden":[],"class_list":["post-14242","page","type-page","status-publish","hentry","manual-seakeeper-3-installation-manual-90378-7"],"acf":[],"_links":{"self":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/14242","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/comments?post=14242"}],"version-history":[{"count":7,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/14242\/revisions"}],"predecessor-version":[{"id":20165,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/14242\/revisions\/20165"}],"up":[{"embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/pages\/14199"}],"wp:attachment":[{"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/media?parent=14242"}],"wp:term":[{"taxonomy":"manual","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/manual?post=14242"},{"taxonomy":"model","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/model?post=14242"},{"taxonomy":"document_type","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/document_type?post=14242"},{"taxonomy":"hidden","embeddable":true,"href":"https:\/\/manuals.seakeeper.com\/seakeeper\/wp-json\/wp\/v2\/hidden?post=14242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}