2.1.3
The NAC-600 marine air conditioner requires the following hookup and connections to assure its proper
operation:
1)
Water connections Install the sea water strainer (shipped as a lo
ose part and unassembled) to the bottom
connection of the condenser. Note the direction of flow indicated by the arrow on strainer. The strainer
should be readily accessible for periodic maintenance and cleaning. Valves on both strainer in let and
outlet are recommended. Connect strainer to pressurized sea water supply line with an inlet pressure of
not less than 35 psi flowing at a rate of 14.0 gallons per minute. Connect the line from the water
regulating valve to onboard piping utilizing the half-union which has been provided with the valve. The
size of the pipe should be the same or larger than the inlet or discharge water lines as provided on the
condenser and regulating valve.
2)
Electrical connections The NAC-60O marine air conditioner is completely wired with the exception of
supply current. To supply the NAC-600 unit with electrical power, a hole must be drilled in the water tight
NEMA-12 junction box disconnect switch for access of the supply power lines. A water tight connector is
recommended to be attached to the NEMA-12 junction box disconnect switch assuring the box of water
tight integrity. A 440 volt, 3 phase, 3 wire power supply, capable of furnishing up to 20 amps of
continuous service is required. The power supply should be fused or thermally protected for the amp
rating previously defined with momentary surges up to 45 amps. A GOOD GROUND CONNECTION TO
A BARE METAL SURFACE OF THE CABINET SHOULD BE MADE.
14a
