Mermaid Air Conditioner User Manual Page 19

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recommend that you secure it with one or two 1/2 inch s/s screws along with duct tape or
foil tape.
Now, attach the return air grill and your installation is completed.
B. SYSTEM OPERATION:
Note: If the boat has not been placed back in the water, do so now. The air
conditioner requires proper cooling water to operate.
1. Priming The Pump:
a) Because marine air conditioner pumps are not self priming, generally, the pump may
need priming each time the boat is removed from the water and then placed back into the
water. Priming may also be required when the water strainer is cleaned or when the boat
has returned to the dock after being used. Normally, once primed at the dock, the pump
will retain its prime until used or taken in and out of the water as mentioned above.
b) To prime the pump, open the sea cock and view the water flow through the clear red
stripe hose. If the water flows into the input of the pump with no air bubbles in the
strainer or hose, the pump is primed. However, if air bubbles are present you must
loosen the hose clamps on the pump discharge hose (blue stripe or black reinforced) and
momentarily remove the hose. Water will immediately flow from the pump breaking the
air lock. Quickly replace the hose and retighten the hose clamps. The pump is now
primed. If you have installed the optional "Bleed Off" valve, it is usually
not necessary
to remove the discharge hose from the pump. Open the "Bleed Off" valve until water
flow is observed and then close the valve. (Ideally this water should be directed to the
bilge or a container that can be later discharged overboard).
WARNING
AS STATED EARLIER, FAILURE TO CLOSE THE "BLEED OFF" VALVE
WILL RESULT IN FLOODING AND POSSIBLE SINKING OF THE BOAT.
Note: If water does not flow from the pump when the discharge hose is removed or
from the "Bleed Off" valve when opened, the pump is not below the water line of
the boat and must be remounted.
2. Power:
a) With the air conditioner circuit breaker in the "OFF" position connect the dock power
cord back to the boat.
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