Dometic RM2453 manual Refrigerator overview, Control panel, Absorption refrigerator system

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refrigerator overview

Control panel

A E D C B

 

 

OFF

OFF ON

 

 

FUEL SELECTOR FLAME

PUSH WHEN LIGHTING

THERMOSTAT

A. ON/OFF, Fuel selector switch

B. Thermostat knob, Gas/Electric

C. Flame failure safety valve push-button

D. Piezo igniter

E. Flame indicator

Absorption refrigerator system

In an absorption refrigerator system, ammonia is liquefied in the finned condenser coil at the top rear of the refrigerator. The liquid ammonia then flows into the evaporator (inside the freezer section) and is exposed to a circulating flow of hydro- gen gas, which causes the ammonia to evaporate, creating a cold condition in the freezer.

When starting the refrigerator for the very first time, the cooling cycle may require up to four hours of running time before the cooling unit is fully operational.

The tubing in the evaporator section is specifically sloped to provide a continuous movement of liquid ammonia, flowing downward by gravity through this section.

If the refrigerator is operated when it is not level and the ve- hicle is not moving, liquid ammonia will accumulate in sec- tions of the evaporator tubing. This will slow the circulation of hydrogen and ammonia gas, or in severe cases, completely block it, resulting in a loss of cooling.

Note! Any time the vehicle is parked for several hours with the refrigerator operating, the vehicle must be levelled to prevent this loss of cooling.

When the vehicle is moving, the levelling is not critical, as the rolling and pitching movement of the vehicle will pass to either side of level, keeping the liquid ammonia from ac- cumulating in the evaporator tubing.

General advice and information

•Make sure defrosting is carried out periodically

•The refrigerator should be kept clean and dry with the door left open when it is not to be used for some time.

•Ensure that liquids or items with a strong odour are well packaged.

•Service and maintenance must be done on a regular sched- ule to keep the refrigerator operating properly, efficiently and safely. The service should be performed by qualified personnel only.

•Avoid spraying water through the refrigerator vents while washing your RV.

!

WARNING

The sealed cooling system must not be opened. It contains corroding chemicals under high pressure.

Sodium chromate is used for corrosion protection (less than 2 weight % of the coolant).

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Contents Installation Operating Instructions Contents IntroductionData plate Absorption refrigerator system General advice and informationRefrigerator overview Control panelVentilation heights Installation instructionsVentilation requirements ClearancesPackaging DimensionsInstalling the refrigerator Overall dimensions Recess dimensionsDecoration panel and lift Securing the refrigeratorElectrical connection Testing LP gas safety shut offConnections LP gas connectionDC connection Maximum conductor wire lengthWire length Min. wire size Panel dimensionsRefrigerator Removal To mount the door panel snapBefore leaving LP gas operation Operating instructionsGAS and AC operation Turning off the refrigeratorProduct care Storage compartmentsReplacing the heater Maintenance & servicePeriodic maintenance Checking the LP gas pressure Cleaning the flue and burnerTroubleshooting Refrigerator does not cool properlyOdour from fumes Appendix a Rearview equipment Appendix B wiring diagram

RM2453 specifications

The Dometic RM2453 is a cutting-edge absorption refrigerator designed specifically for use in recreational vehicles, boats, and off-grid living spaces. With a capacity of 8.7 cubic feet, it offers ample storage space for food and beverages, making it an excellent choice for those who value convenience and efficiency on the road.

One of the standout features of the RM2453 is its innovative absorption cooling technology. Unlike traditional compressors, which can be noisy and consume a lot of energy, the RM2453 operates silently and requires minimal power. This is particularly beneficial for RV and marine applications, where noise reduction and energy efficiency are paramount. The refrigerator uses a unique ammonia-based cooling system, which is not only efficient but also environmentally friendly. This ensures that users can enjoy a consistent temperature without the disturbance of compressor noise or the drawbacks of refrigerants that may harm the environment.

The Dometic RM2453 is equipped with a three-way power source, allowing it to operate on AC, DC, and propane. This versatility means that users can easily switch between power sources depending on their needs and availability, ensuring that the refrigerator remains operational regardless of their location. Whether plugged into a campsite electrical hookup, running off the vehicle’s battery, or utilizing propane while boondocking, the RM2453 provides flexibility that many other refrigerators cannot match.

Another notable characteristic of the RM2453 is its user-friendly design. It features adjustable shelving, allowing users to customize the internal configuration to accommodate various sizes of food items and containers. The reversible door hinge offers greater flexibility in terms of installation and access, ensuring that the refrigerator can fit seamlessly into any space.

In terms of build quality, the Dometic RM2453 is designed for durability. Its robust construction is engineered to withstand the rigors of travel and the marine environment. With a sleek and modern aesthetic, it not only performs exceptionally but also enhances the overall look of the kitchen or galley it occupies.

Overall, the Dometic RM2453 stands out in the market for its combination of energy efficiency, versatility, and practical design. It remains a top choice for those seeking a reliable refrigerator solution for their mobile lifestyle, delivering excellent performance and convenience in a compact package.
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