Mermaid Air Conditioner manual

sufficient amount to properly locate the box when installation is completed. Follow the same installation procedure for this circuit breaker as with the 20 amp air conditioning unit circuit breaker described earlier in the Installation Section of this manual.

WARNING

THE PUMP RELAY BOX MUST BE IN A DRY NON-EXPLOSIVE

ENVIRONMENT. EXPOSURE TO EXPLOSIVE MATERIALS OR VAPORS MAY CAUSE EXPLOSION RESULTING IN SERIOUS INJURY, DEATH, OR DESTRUCTION OF THE BOAT. EXPOSURE TO WATER COULD CAUSE ELECTRICAL SHORTING RESULTING IN FIRE AND DESTRUCTION OF THE BOAT.

3.On the outside of the Pump Relay Box are two terminal boards. One terminal board is WHITE and will be used to connect the 115 (220) vac input power from the pump circuit breaker. The other terminal board is BLACK and will be used to connect the 24 vac control voltage from each air unit to the Pump Relay Box relays located inside the box.

(When using the Mermaid FX-1 control, a 110v relay coil is used. A 110v to 110v relay box is required. Contact the Mermaid factory for details)

4.The BLACK terminal board will have two "GRAY" cables connected to it from the factory. Each of these cables has an internal "WHITE" and "BLACK" wire. Route one of these "GRAY" cables to each of the air units. It is not important which cable goes to which air unit. (Again, separate instructions are provided when the Mermaid FX-1 Thermostats are used.)

5.At the air conditioning unit, on the outside of the air conditioner Electrical Box, there is a BLACK terminal board. Connect the "BLACK" wire in the "GRAY" cable to the "B" terminal on this board. It is the terminal on the far right as you face the terminal board.

6.Remove the cover from the Electrical Box by removing the three retaining screws located on each side of the box. The cover slides off. Inside the box, locate the contactor relay which is black in color and is mounted in the top right of the box.

7.Now run the "WHITE" wire from the "GRAY" cable through the black plastic grommet located directly below the BLACK terminal board into the air unit Electrical Box. Locate the 24 vac "YELLOW" wires on the side of the contactor relay and "piggy back" the Pump Relay Box "WHITE" wire to one of the "YELLOW" wires.

8.Replace the cover on the Electrical Box being careful not to pinch any wires in the cover and replace the cover retaining screws. All wiring is now complete at this end.

9.Repeat this same operation at the second air conditioning unit.

10.Return to the Pump Relay Box.