Mermaid Air Conditioner manual Water Out, Checking Out The System

b)Place the main circuit breaker and the air conditioner circuit breaker in their "ON" positions.

3. Water Out:

a)Once the air conditioner starts, immediately go out on deck and check that water is coming out of the "water out" thru-hull. Once all of the latent air is forced from the hoses a steady stream should be present with enough force that the water stream clears the side of the boat hull.

b)If the water flow is not present or weak, the pump was not properly primed. Shut the air conditioner off and prime the pump as described above. (You may also attempt to prime via the bleed off valve ONLY while the air conditioner is running – allowing for the pump to function). If the air conditioner is allowed to run without water for more than a minute, the High Pressure switch will activate and disengage power from the compressor. Once the water problem is corrected, you will need to reset the High Pressure switch by pushing the extended metal tab in with your finger. The High Pressure switch is located on the top of the 6,500 BTU, 9,000 BTU, 12,000 BTU, 16,500BTU, or 24,000BTU air conditioner and is on the upper side of the 5,200 BTU unit.

4. Checking Out The System:

a)Air Flow: Once the air conditioner is running and water flow is present, check each supply air vent to make sure it is open and cooling air is present. If air flow is not present, check ducting for good air tight connections and that kinking or sagging of the duct has not occurred.

b)Water Connections: Check each water connection beginning at the sea cock, then the water strainer, pump, the air conditioner and the "water out" thru-hull. No water leaks should be present. Also, at this time, it is always good to check the hose clamps for tightness in case one may have been overlooked during installation.

c)Condensation: By now the unit should be producing condensation. Check to make sure that condensation is flowing freely into the condensation hose. If the unit has not produced sufficient condensation to check the flow, pour water into the condensation pan to see that in fact it is flowing freely.

d)The Air Conditioner Unit: The unit should be free of vibration noises and the sides of the evaporator should be sweating and cool all the way up. If vibration noise is present, adjust the unit mounting screws. If this does not correct the noise, use a socket wrench with an extender or a large phillips head screwdriver (or 5/16 nut runner if applicable) and tighten down the compressor mounting bolts until the vibration noise stops. In some situations, although very rare, it may lessen the sound vibration to actually loosen the compressor bolts a very, very small amount. In some boats where a mounting shelf was installed, sound will travel through the board to the side walls and a "speaker effect" will