Marine AC Pumps - Cruisair Marine Air PMA1000, Dometic

Cruisair PML500, Dometic PML500, Marine Air PML500 Marine Air P500, Cruisair PMA1000, PMA1000C


Marine Air Conditioner Pumps - Marine AC Pumps - Sea Water Pumps. 

Cruisair PML500, Cruisair PML500C 

Cruisair PML500L, Marine Air PML500

Cruisair PMA500, Cruisair PMA500C

Marine Air PM500, Marine Air PMP500

Marine Air P500  

Dometic PML500, Dometic PML500C

Also Available

Cruisair PMA1000, Cruisair PMA1000C 

Dometic PMA1000, Dometic PMA1000C

Cruisair PMA500, Cruisair PMA500C

Dometic PMA500 Dometic PMA500C

Marine AC Pumps - Dometic Cruisair Marine Air PMA1000 , PML500, P100


Marine Air Conditioner Pumps - Marine AC Pumps - Sea Water Pumps.

Marine Air P100, P100Z and Cruisair P1500BXT is shown.


Marine Air P120 and Cruisair PMA1000 Pump also Available.


Also Available for Multiple air conditioners.

Dometic Cruisair PMA1000 Pump

Dometic  Cruisair PMA1000C pump  

Pump Relay Panel 2-6PRP, 2-PRP Fully Electronic with Triggers - and Dual Voltage 115V to 230V


Pump Relay Panels
Part # 2-PRP - (2) Unit Model

Part # 2-6PRP - (2) thru (6) unit Model
(They are Dual Voltage, for 110v or 230v)
2 unit shown with cover off.

How a Marine Air Conditioner -Marine AC Pump Pump works


The Marine Air Conditioner Pump is designed to move a high volume of water to the AC unit or units inside the boat. Some Marine AC pumps can be quite powerful given that the AC unit(s) may be located high above the waterline or on the other end of the boat. Marine AC pumps ensure constant delivery of fresh water to cool the heat exchanger of the AC unit itself.  one essential aspect of the Marine Air Conditioners pump location is that it's placed in a protected area within the bilge below the waterline.


The vast majority of Marine Air Conditioning Pumps are non-self priming pumps.  Meaning they cannot generate suction to pull water into them.  

For the pump's impeller to gain suction (or traction) in the water, it has to be already submerged in water before it starts turning.  Mounting and plumbing the pump below the waterline will keep the pump's impeller submerged at all times.  If it's mounted above the waterline, it will fail to "push" water through the system.  To clarify "push," let me explain how these pumps work.  The majority of Marine AC Pumps are centrifugal pumps in design.  They "push" water by spinning it inside the pump head, creating centrifugal force with the spinning pump impeller.  Giving the water only one way to escape the pressure; That's through the output nozzle.  As the water gets pushed out of the output, the siphoning effect pulls more water into the impeller.  If there is no water to spin/push, nothing happens.  The Marine Air Conditioners pump will also use the water inside the pump head to lubricate the impeller and bearing. NEVER Run a PUMP DRY....It will be destroyed in 6 seconds.