Summary of Contents for Mars Air Systems L-2254
- Page 1 Installation & Operation Direct Expansion Systems Revised: 7-18-05 L-2254...
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Page 3: Table Of Contents
Copyright 2005 Dometic Environmental Corporation, All Rights Reserved - Every precaution has been taken in the preparation of this manual to insure its accuracy. However, Dometic assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of this product and information contained herein. L-2254 ❖ ❖ ❖ ❖ ❖... -
Page 4: Introduction
De minimis releases associated with good faith attempts to L-2254 Introduction recapture and recycle or safely dispose of any such substances shall not be subject to the prohibition set forth in the proceeding sentence.”... -
Page 5: Installation
LPG/ CPG cylinders, regulators, valves or fuel line fittings. Failure to comply may result in injury or death. L-2254 Installation Notice This component is charged with hydrochloro-fluorocarbon (HCFC) refrigerant R22. Effective July 1, 1992 it shall be... -
Page 6: Condensate Drains
"aft facing", then the drain on that edge should also be L-2254 Installation utilized. This will help to prevent water from standing in the pan. See item 7 for instructions on connecting two drain lines. -
Page 7: Seawater Pump And Plumbing
Install the seawater speed scoop intake as far below the water L-2254 Installation line and as close to the keel as possible in any application, but especially on a sailboat, to keep the intake in the water when the boat heels over so that air does not get into the system. -
Page 8: Electrical Connections, Grounding And Bonding
2 above. L-2254 Installation ABYC standards are available from: American Boat and Yacht Council 3069 Solomons Island Rd. -
Page 9: Installation Checklist (Review Prior To Installation)
❑ Condensate drain routed aft and down hill to a sealed sump (not bilge) ❑ Blower rotated toward supply air grille L-2254 Installation Electrical ❑ The wiring diagram is located in the electrical box. If that diagram is damaged or if you need a copy, please... -
Page 10: Operation
Note: Do not turn the unit off and immediately turn it back on. Wait at least 30 seconds. L-2254 Operation Quick Start Operations Checklist ❑ Ensure seawater intake ball valve (sea cock) is open. ❑ Turn on the a/c circuit breaker. If the seawater pump has its own circuit breaker, turn that on. -
Page 11: Troubleshooting General Troubleshooting
Loss refrigerant gas. Check a/c unit for refrigerant oil leakage, call service technician. L-2254 Troubleshooting 5. Seawater temperature too high for cooling or too low for heating. Seawater temperature will directly affect a/c unit's efficiency. This a/c unit can effectively cool your boat in water temperature up to 90°F and heat (if reverse... -
Page 12: Digital Controls Troubleshooting
Raise or lower set point. 2. Porthole or hatches open. Close all port holes and hatches. L-2254 Troubleshooting 3. Seawater temperature too high for cooling or to low for heating. Seawater temperature will directly affect the a/c unit's efficiency. - Page 13 If problem persists, reprogram Low Fan Speed Limit for maximum value. Set P-2 to 55 for Elite or set P-3 to 64 for Passport I/O. L-2254 Troubleshooting Fault: System runs continuously. Possible Reason/Correction 1. Improper air sensor location.
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Page 14: Mcp Mechanical Control Panel Troubleshooting
Reconnect or tighten, verify with wring diagram in this manual. Fault: System runs continuously. Possible Reason/Correction 1. Improper MCP air sensor location. Verify return air sensing bulb location with criteria found in this manual. L-2254 Troubleshooting ❖ ❖ ❖ ❖ ❖ English... -
Page 15: Maintenance
WARNING: For the purpose of protecting the environ- ment, dispose of any contaminated acid solutions in accordance with federal, state and/or local regulations. L-2254 Maintenance Return Air Filters Check the return air filter about once a month and clean as necessary. To clean the filter, remove it from the unit, rinse with water, air dry and reinstall. -
Page 16: Manufacturers Limited Warranty Agreement
In addition, Dometic will pay labor costs and travel as outlined in its Schedule of Limited Warranty Allow- L-2254 ances for removal and reinstallation of such components for a period of one (1) year from the date of installation, but not to exceed two (2) years from the date of manu- facture at the Dometic factory. -
Page 17: Description Of Figures
Fig 11. Wiring Diagrams for Digital Controls (VCD5-16 & VCD/VHD 24K) Fig 12. Wiring Diagrams for Digital Controls (VCD5-16HV & VCD/VHD 24K 460V/3Ph) Fig 13. Wiring Diagrams for Digital Controls (VCD18K-HV & VCM18K-HV) L-2254 ❖ ❖ ❖ ❖ ❖ English... - Page 18 Fig 1. Overview of Vector Compact Fig 2. Placement of Vector Compact L-2254...
- Page 19 WITHIN THIS DOCUMENT IS THE PROPERTY OF DOMETIC CORPORATION. ANY ATTEMPT TO COPY OR DISTRIBUTE WITHOUT WRITTEN CONSENT FROM DOMETIC CORPORATION SHALL BE CONSIDERED UNLAWFUL AND CAN BE CONTESTED IN A COURT OF LAW. L-2254 DATE REVISION DESCRIPTION 3/7/03 REVISED TABLE DIMS,CAD200-03 3/28/03 REVISED DIMS &...
- Page 20 Fig 4. Installation of condensate drain Fig 5. Mounting brackets L-2254 Fig 6. 3-Knob Control...
- Page 21 Fig 8. Ducting and Grille Sizing Model Duct Diameter (in/mm) 4/102 Duct Area (sq in/cm) 12.6/81 19.6/126 28.3/183 28.3/183 38.5/248 R/A Grille (sq in/cm) 64/413 S/A Grille (sq in/cm) 32/206 L-2254 5/127 6/152 80/516 100/645 45/290 60/387 6/152 7/178 7/178 38.5/248...
- Page 22 Fig 9. Wiring Diagrams for Mechanical Controls (VCM5-16 & 24K) L-2254...
- Page 23 Fig 10. Wiring Diagrams for Mechanical Controls (VCM5-16HV & 24K 230V/3Ph) L-2254...
- Page 24 Fig 11. Wiring Diagrams for Digital Controls (VCD5-16 & VCD/VHD 24K) L-2254...
- Page 25 Fig 12. Wiring Diagrams for Digital Controls (VCD5-16HV & VCD/VHD 24K 460V/3Ph) L-2254...
- Page 26 Fig 13. Wiring Diagrams for Digital Controls (VCD18K-HV & VCM18K-HV) L-2254...
- Page 32 2000 N. Andrews Ave. Ext. • Pompano Beach, FL 33069-1497 USA • Phone: 954-973-2477 • Facsimile: 954-979-4414 For Sales and Service Calls within Europe and the Middle East, please contact +44 (0) 870 330 6101 Website: www.marineair.com • Email: sales@marineair.com L-2254...
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