Passagemaker

FEATURES ---------------
High Quality Components
  • Hermetically sealed compressor for quiet, efficient operation.
  • Zinc chromate primer protection against corrosion- for all pan components.
  • Vibration isolators are incorporated in all mounting platforms for additional noise control.
  • Replaceable filter/drier without refrigerant charge loss.
  • Sight glass/moisture indicator assembly to monitor system refrigerant charge.
Remote Electrical Box
  • Completely enclosed box protects all components.
  • 5’ harness allows for a dry, accessible mounting location.
  • Low voltage (12volt) controls provide an extra margin of safety.
Environmental Considerations
  • All units have quick disconnect fittings and are pre-charged with refrigerant for ease of installation.
  • Additional service valve permits refrigerant isolation for drier change.
  • Utilizes “ozone friendly” refrigerant R-404A.
Quality Assurance
  • Each unit is assembled with a charge of nitrogen to ensure that scale does not form during soldering.
  • Every unit is leak checked, test run and shipped pre-charged with refrigerant.
  • Charge Guard® protection provides sealed access ports to ensure system integrity during handling and installation.
  • All units meet or exceed applicable ABYC and U.S. Coast Guard regulations, CE Directives and general Air Conditioning and Refrigeration Industry (ARI) standards.
mainimage
cadimage
SPECIFICATIONS
Model
AC425
AC450
AC465
AC475
Refrigerant
R-404A
R-404A
R-404A
R-404A
Charge (oz/g)
26/737
50/1420
50/1420
50/1420
Capacity (BTUs)**
26°F (-3°C)
1850
3400
4500
5000
0°F (-18°C)
1650
2800
3600
4200
-9°F (-23°C)
1500
2200
3000
3600
-18°F (-28°C)
1250
1800
2400
3200
Electrical Data
RLA - 115v/230v
5.9/2.9
6.7/3.0
7.9/4.4
15.2/7.7
LRA - 115v/230v
40.0/20.5
68.0/34.0
68.0/38.7
59.0/37.0
Max. Circ. Breaker 115v/230v
10.0/5.0
20.0/10.0
20.0/10.0
35.0/20.0
Min. Circ. Ampacity 115v/239v
9.7/4.7
15.8/6.8
16.0/8.8
26.5/13.5
Physical Data
Unit Dimensions (in/cm)
D (Depth)
14.1/35.8
14.1/35.8
14.1/35.8
14.1/35.8
W (Width)
13.1/33.4
13.1/33.4
13.1/33.4
13.1/33.4
H (Height)
10.5/26.7
13.6/34.6
13.6/34.6
14.75/37.5
Electrical Box Dimensions (in/cm)
D (Depth)
10.875/27.6
10.875/27.6
10.875/27.6
10.875/27.6
W (Width)
10.625/27.0
10.625/27.0
10.625/27.0
10.625/27.0
H (Height)
4.0/10.2
4.0/10.2
4.0/10.2
4.0/10.2
Weight (lbs/kg)***
Net
46/20.87
56/25.40
56/25.40
57/25.85
Ship
56/25.40
66/29.40
66/29.40
67/30.39
* Add a ‘Z’ to the model number to indicate 230 VAC for models AC425 through AC475.
** BTU ratings are the average rate of heat extraction from holdover plates and are not the capacity of the compressor or condensing unit. These figures are to be used to determine run times required to maintain box design temperatures.
*** Add 8 lbs (3.6kg) for remote electrical box. All weights include refrigerant charge.
Installation Guidelines for Passagemaker
When choosing the proper model Passagemaker, primary consideration should be given to calculated BTU loads and available power supply. Any special requirements (box capacity, air condenser exhaust, wiring sizes, etc.) should be determined prior to installation. The location of the Passagemaker condensing unit should be dry and accessible for service. The unit should be installed with the fasteners provided and secured to a horizontal or vertical surface sufficient to support the weight and torsion load from the vessel’s movement. The remote electrical box may contain position-sensitive components (labeled as such on the outside of the box). Fasten in the appropriate position using the mounting hardware provided. The sea water system must be installed below the water line and routed on a continuous incline from a dedicated thru-hull intake to the pump inlet, up to the condensing unit to prevent air locks in the sea water pump. Reinforced marine grade hose should be used for the sea water circuit, and all fittings should be double-clamped. The refrigeration lines connecting the holding plate(s) to the condensing unit must be constructed from refrigeration grade, dehydrated copper and must be properly insulated (suction line only or both lines insulated together). All fittings are designed for flare connections, and these connections are to be made using proper flaring tools and techniques during installation. A non-leak compound may be used on flare connections, if desired, to prevent refrigerant leaks (due to vibration or loosening of suction side connections due to frost). This compound should be applied sparingly to the male threads of the fitting, and great care must be taken to prevent contact with the flare seat. Flare connections must be adequately tightened, usually as tight as possible, with the exception of 1/4” lines which can be crushed if the flare is over tightened. All associated mechanical components (solenoid valves, check valves and expansion valves) must be located and secured properly. Thermostats are to be located and properly secured in the box(es) or on bulkheads with sensing bulbs properly secured into the sensing wells located on the holding plates. Circuit breakers and wire gauges must be sized according to ABYC marine design standards. Only stranded tinned copper should be used. All equipment must be properly grounded. Refrigerant line sets and holding plates must be thoroughly evacuated (recommended to 200 microns) and leak checked prior to releasing refrigerant from the condensing unit into the system and start-up of the equipment. The refrigerant charge may require adjustment once the entire system is operational. In keeping with regulations set forth by the EPA, only certified technicians should perform service on, or make adjustments to, the refrigerant circuit.

In the interest of product improvement, Marine Air Systems' specifications and design as outlined herein are subject to change without prior notice.



HomeSelf Contained | Central Systems | Manuals
 Chilled Water | Refrigeration | Accessories