Our partners and staff come from a wide range of backgrounds, which provides our customers with versatility and stability. Check the drain hose. He has filmed and interviewed people living in tiny houses and RVs since 2011. In that case, move the thermostat for correct operation. Air conditioners remove humidity along with heat, and the water has to go somewhere. A/C Installations; Direct Expansion A/C; DIY Marine AC Install Help; Marine A/C Pumps & Pump Relays; DIY Question about Marine A/C Wattage Draw & DC Inverter Power; Marine AC Control Identification for Marine Air Direct Expansion Units; Cruisair. Need Help? Clean your air conditioner’s filters monthly by washing with plain water, vacuuming or blowing. When this happens, turn off the pump and the AC unit to allow it to cool. Since many marine air conditioning systems function around the clock, drawing in raw water continuously, ongoing maintenance is crucial to ensure optimum performance. As the phase-converting refrigerant passes through the evaporator coils, it gets colder but more gaseous (because it’s boiling), and absorbs heat from the surrounding air. The wire on the reversing valve solenoid might be loose or worn. Comfort Marine Air is a full service Marine HVAC products and services company with years of experience and a genuine commitment to professional, affordable and personalized service. Poor or damaged insulation can reduce cooling. Acquired by Dometic from Taylor Made Corporation in 2003, Marine Air is an important part of the Dometic brand portfolio. 4. Have spare air conditioning strainers onboard as the constant flow reduces the longevity of the baskets. Some Older Cruisair Parts and Marine Air Systems Parts Are still Available Like - Blowers, Circuit boards, displays, and Keypads for older Marine Air Conditioners like Marine Air VCD, VCP, VRP, VHE. Test the fan with a jumper to determine if it’s still working. Check that there are no loose or disconnected wires. Cruisair Price Book; Marine Air. Make sure the condenser coil’s caps are removed and the water strainer and pump are below water level. The problem might be from a loose or broken wiring. The first thing you should do if it’s way too hot belowdecks is to clean the filter—vacuum it, wash it, do whatever the owner’s manual tells you. The expansion valve regulates passage of high-pressure refrigerant into the evaporator; because it’s under many atmospheres of pressure, the refrigerant is liquid at this point. The pump needs to be submerged to draw water into the AC unit. If you explore all options but the noise persists, call a professional. If it does stick, when you want heat, you’ll be left out in the cold. 2790 Kurtz , San Diego, CA 92110 Check the minimum number of vents the system requires for optimal performance and upgrade as required. Inspect the raw water strainer and flush if dirty or clogged. ... Industry, We have the education , experience and the Factory Certified Licensing to be the best for all your HVAC-R systems needs. Summer's here, is your boat's air-conditioning system up for the job? Reordering the connection might solve the problem. Marine AC Information. Contact a technician if none of the above works. Most marine FWC thermostats open at 160°F and will be fully open at approximately 180°F. Your AC unit’s fan keeps the evaporator coil cool for efficient operation of the condenser. (Nice vacation, huh?) Many skippers never switch to reverse cycle, but they should: There’s a reversing valve in the system that can stick if it’s not activated regularly. The colder the water, the more efficient the cooling, but most air conditioners will work fine to water temps into the 80-degree range, sometimes warmer. If the thermostat is poorly positioned, it may sense cold temperature and reduce the unit’s cooling effect. Like your car’s radiator, the evaporator in your boat’s air conditioner can freeze during operation. If you live in a place with humid summers and cruise on mosquito-infested waters, a working AC unit is a must. This problem arises when the air conditioner does not produce heat in HEAT mode. Clean the relevant sea strainer once a month (or more often in tropical waters), and whenever your air-conditioning system is functioning, keep an eye on its raw-water discharge to ensure the flow is unrestricted. The point? Email [email protected] Connect the collecting cylinder to the purging line of the condenser, open the valve, and collect air in the cylinder. The refrigerant then flows through the expansion valve to the condenser, where the now very cold refrigerant picks up heat from the seawater and carries it through the compressor to the cabin. Clear brush and debris from outside unit and surrounding area Even if your air-conditioning system is working great, clean the filter once a month. Clean with a blower if you notice debris or dust buildup. View & download of more than 1 Marine Air Systems PDF user manuals, service manuals, operating guides. Similar to other air conditioning systems, this equipment involves electrical and high pressure components. You may notice that your boat’s AC is not as cool as it used to be despite the compressor and fan working normally. Clean with a blower if you notice debris or dust buildup. Air conditioners don’t really produce cold, they remove heat. If you need to clean the filter more often, try cleaning the cabin. However, the fan may become noisy to the point of being uncomfortable. Don’t whale on it too hard, though.). Check the return air. Email: [email protected] But to perform optimally, the pump must always be in contact with the water. This option might be costly than DIYing your maintenance, but it will save you time, efforts and help you enjoy more quality time on your boat. Morten teaches that on his YouTube Channel. Learn about eight most common problems that are seen in ship's refrigerated system. The main cause of this issue is restricted airflow and can be corrected by removing the obstruction. Even if your air-conditioning system is working great, clean the filter once a month. Nothing beats a summer retreat on your boat. But this may prove difficult based on the model and your experience. Clear the hose if it’s an obstruction. Marine Air began building air conditioning systems for boats in 1977. Inspect the hoses from the sea stock, strainer, pump, to the thru-hull. Shut off your marine AC unit and troubleshoot the fan and adjoining areas. Julio Ramirez, a technical advisor with air-conditioning maven Dometic (www.dometic.com), recommends taking the temperatures of the supply and return air with a digital thermometer—it’ll set you back about 20 bucks if you don’t already have one. So, although the technology is fine for autumn boating, if you plan on an Arctic exploration, you might want to install a dedicated heating system. Inspect the air filter and clean it for proper ventilation. Checking and recharging the system is a job for a licensed air-conditioning technician. Remove anything restricting the air flow. Depending on the brand and model of air conditioner, the following are things to check when you have issues with your boat AC. Then the refrigerant returns to the expansion valve and the cycle begins again. Sometimes the problem is from a faulty fan relay or capacitor. Normal temperatures. If you fire up your system and it runs for a little while and then shuts off, it could be that the safety switch has tripped and you need to check the water supply. The AC will shut off if it doesn’t get water flow to prevent overheating. If the boat planes or the waterline changes, it can leave the pump out of the water, preventing it from performing optimally. Check that the AC pump works properly and replace if faulty. The AC unit may not be elevated enough for the water to leave the pan nipple. Most systems have a safety switch that shuts off the compressor if the water flow is insufficient, which causes system pressure to increase beyond a preset limit. When this occurs, the evaporator will not dissipate heat effectively. Give system time to stabilize. “It should be done every two to five years, depending on where the boat is located,” advises Wright. “There should be anywhere from 12 to 20 degrees difference between them,” he adds. • Bypass valve motor may not be operating. Marine growth can also clog condenser coils. Morten is the founder of GoDownsize. The control is dual voltage , operating at both 115 and 230 Volts, 50/60 Hz. Raise the elevation to restore flow. The AC pump in your boat is a vital component that must work perfectly to keep your vessel cool. Clean the existing duct system or increase the vents for adequate airflow. It’s July, and a skipper’s thoughts turn to his air-conditioning system—especially if the darn thing stops working and his family moves into the Holiday Inn next door to the marina. These problems usually require replacing the faulty component. (If your reverse-cycle valve sticks, by the way, tapping it lightly may free it; listen for a hiss as it activates. Control Unit, user manuals, operating guides & specifications A leaking hose is not only bad for your AC unit, but it can flood your boat and even sink it if you are running the system while the boat is empty. It also lists the activities which are not DIYable and so you can call professionals. Air Marine Systems is a reseller of new and used aviation and marine spare parts. The condensate pan is the tray that collects the humidity the AC unit draws from your boat. Always disconnect power supply prior to perform installation, servicing or maintenance. After purging the air from the system don’t forget to shut the purging valve. Did you find wrong information or was something missing? Manufacturers recommend flushing the condenser coils to remove marine scum and scale every two to five years based on the frequency of use or location. Inspect the reversing valve relay to see if it’s burned. The entry of large particles, critters and debris can also make the pump noisy. Don’t let the dog days of summer make you swelter. (PS: We read ALL feedback). Repairs come backed with a one year warranty covering parts and our labor. Check for cracked and leaking hoses, broken, worn and corroded clamps, and replace old components. Call us about your marine air conditioning needs and we will be happy to help! After trying all the troubleshooting tricks in the book and you can’t resolve the issues with your cooling unit, ask for professional help. But it is an ideal location for critters and debris to accumulate. This indicates malfunctioning reversing valves. Turn off all the power from the boat before attempting to troubleshoot electrical components. A chilled-water system, on the other hand, cools fresh water that, in turn, circulates through the air handlers. Read more about Morten here. That said, it only proves to say how valuable it is to conduct a research first before going to the store. Need a way to check whether your air-conditioning system is working up to spec? If required, charge the system with fresh refrigerant. Check the level of the refrigerant in the system. These are put in place to prevent such occurrences as starting the engine without having a signal from the engine room telegraph, trying to start the engine with the turning gear engaged, or trying to start ahead when the telegraph asks for astern. Marine HVAC Controls - Dometic, CruisAir, Marine Air, Passport Repair Service. Activation of High-Pressure Switch in HEAT Mode, 7. Air-conditioning systems come in different configurations, but all share three major components: The evaporator, where boiling refrigerant absorbs heat from the surrounding air; the compressor, which pushes the refrigerant through the system; and the condenser, where the refrigerant is cooled and liquefied before being pumped back to the evaporator. Make sure the thru-hull, sea strainer, and valves are working perfectly. An internally short pump can also cause the problem. Check your user manual for the correct way to clean the system or ask a professional to perform detailed maintenance. In all cases, reading and studying the aforementioned manual before opening your toolbox or calling for help is very important. If you turn on your boat AC unit but can’t feel or hear anything, it could be from different factors but all of them are related to your electrical circuitry. The problem might be from a shorted wire. If the difference is less, the problem could be a loss of refrigerant charge; although the system is supposed to be a closed loop, sometimes refrigerant leaks out. Eventually the autumn chill will send you reaching for the heat switch, and when you hit it, you want warm air to flow. If your air conditioner won't turn on, it's important to troubleshoot a few key things before you call in an HVAC technician, as this can save you time and - more importantly - money. Our marine air conditioning systems are designed to be as compact as possible. The air start system looks rather complicated, but it is quite simple when you examine it without the safeguards. Check to see that the fan is running properly. Part of your scheduled air-conditioner maintenance, along with cleaning the air filters and raw-water strainer, should be to switch to reverse cycle for a couple of minutes periodically, even if it’s already hot as Hades in the cabin. A new clean system under moderate load should operate at the lower end of this range and a dirty system under full load might operate in the upper range. Efficient heat exchange at the condenser demands a free flow of raw water, of course, which means keeping the supply side clear. Kinks in the hose, debris, and clogged lines to the seawater pump can restrict the flow of water. If you take good care of your air-conditioning system, it’ll take good care of you, maybe for decades, says Wright. (Probably the #1 question we get). Or it could be the condenser coil. 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