Installation Guidelines for DC Voltage/Belt Driven Model - Mariner

When choosing the proper model Mariner condensing unit, primary cosnideration should be given ti the calculated BTU loads and available power supply. Any special requirements (number of boxes and/or controls, refrigerant line lengths, wiring sizes, etc.) should be determined prior to installation.

The locations of the unit should be dry and accessible for service. It is not recommended to locate the unit in an area that exceeds a continous maximum temperature of 104°F. The location of the unit should provide for proper air flow through the air cooled condenser, if added, to avoid overheating the system.

The unit should be installed with the fasteners provided, and secured to a horizontal surface sufficient to support the weight and torsion load from the vessels movement. Fasten the remote electrical box using the mouting hardware provided.

The seawater system must be installed below the water line and routed on a continous incline from a dedicated thru-hull intake to the pump inlet, up to the condensing unit to prevent air locks in seawater pump. Reinforced marine grade hose should be used for the seawater circuit, and all fittings should be double-clamped.

The refrigeration lines connecting the holdover plate(s) to the condensing unit must be constructed from refrigeration grade dehydrated copper amd must be properly insulated(suction line only).

All fittings are designed to use flare connections, and these connections are to be made using proper flaring tools and techniques during installation. A non-leak compond may be used on flare connections, if desired, to prevent refreigerant leaks due to vibration or loosening of suction side connections because of frost. This compound should be applied sparingly to male threadsof the fitting, and great care must be used to prevent contact with the flare seat.

Flare connections must be adequately tightened, usually as tighly as possible, with the exception pf 1/4" lines which can be crushed if the flare is overtightened. All associated mechanical components (solenoid valves, check valves and expansion valves) must be located and securely properly.

Circuit breakers and wire guages must be sized accordingly to ABYC and marine design standards. Only stranded tinned copper wire should be used. All equipment must be properly grounded.

Refrigerant line sets and holdover plates must be throughly evacuated (recommended to 200 microns) and leak checked prior to releasing refrigerant from the the condensing unit into the system and start up of the equipemnt. The refrigerant charge may require adjustment oncethe entire system is operational. Follow proper procedures and current regulations when adding or removing refrigerant to the system.

In keeping with regualtions set forth by the EPA, only certified technicians should perform service on, or make adjustments to the refrigerant circuit.