Dometic RM4605 - User Manual

AES III
INSTALLATION
&
OPERATING
INSTRUCTIONS
RM4605
RM4805
FOR YOUR SAFETY
If you smell gas:
1. Open windows and door.
2. Don’t touch electrical switches.
3. Extinguish any open ame.
4. Immediately call your gas supplier.
FOR YOUR SAFETY
Do not store or use gasoline or other
ammable vapors and liquids in the vicinity
of this or any other appliance.
Improper installation, adjustment, alteration,
service or maintenance can cause injury or
property damage. Refer to this manual. For
assistance or additional information consult a
qualied installer, service agency or the gas
supplier.
REVISION A
Form No. 3313935.000 09/16
If the refrigerator stops cooling - or - if
it emits an ammonia smell, immediate-
ly turn the refrigerator off and contact a
Service Center.

Summary

Introduction and Symbols

Introduction

Welcome message and overview of the refrigerator's features and installation requirements.

Transit Damage

Instructions for checking and reporting transit damage to the refrigerator.

Data Plate

Guidance on checking and noting details from the refrigerator's data plate.

Symbols Used in Manual

Explanation of the various symbols (Safety Alert, Warning, Caution, Notice) used throughout the manual.

Operating Instructions

Control Panel Overview

Details the buttons and indicator lamps on the refrigerator's control panel.

Automatic Energy Selector (AES)

Explains the Automatic Energy Selector (AES) system and its operation.

Starting the Refrigerator

Provides step-by-step instructions on how to start the refrigerator.

LP Gas Operation

Describes how the refrigerator operates on LP gas.

Gas Troubleshooting

Offers solutions for problems related to gas operation.

Refrigerator Usage and Maintenance

Abnormal Operation

Lists conditions considered abnormal and may require servicing.

Using the Refrigerator

General guidance on using the refrigerator, including food storage and ice making.

Defrosting the Refrigerator

Provides steps and tips for defrosting the refrigerator.

Cleaning the Refrigerator

Provides instructions for cleaning the interior and exterior of the refrigerator.

Troubleshooting and Maintenance

Troubleshooting Refrigerator Failures

Steps to take if the refrigerator fails to work or is not cold enough.

General Maintenance Recommendations

Advice on servicing, safety checks, and cleaning for optimal performance.

Installation Instructions

General Information

Overview of installation requirements for motor homes and caravans.

Ventilation of the Unit

Details on ventilation grilles, side, and roof ventilation options.

Building-in Procedures

Guidance on installing the refrigerator into an enclosure and ensuring proper sealing.

Securing the Refrigerator

Instructions on how to securely fasten the refrigerator within its installation space.

Connections and Electrical Setup

Drain Water Hose Installation

Instructions for installing the drain water hose.

LP Gas Connection

Details on connecting the refrigerator to the LP gas supply system.

Electrical Connection Requirements

Guidance on connecting the refrigerator to 230-240V mains and 12V DC power.

Appendices

Rear View Equipment Diagram

Diagram illustrating the components on the rear of the refrigerator unit.

Wiring Diagram

Schematic representation of the refrigerator's electrical wiring system.

Gas Safety System Working Diagram

Diagram showing the operation of the gas safety system.

Overview

1. Function Description
2. Important Technical Specifications
3. Overall Dimensions
4. Recess Dimensions
5. Capacity
6. Weight (without packaging)
7. Electrical Data (watt)
8. LP Gas Data
9. Ventilation Heights (Minimum)
10. Clearances to Combustible Materials (Minimum)
11. Gas Safety System Technical Specifications
12. Usage Features
13. Maintenance Features

This document provides installation and operating instructions for the Dometic RM4605 and RM4805 AES III refrigerators, designed for use in motor homes and caravans.

Function Description:

The Dometic RM4605 and RM4805 are absorption refrigerators equipped with an Automatic Energy Selector (AES) system. This system automatically manages the refrigerator's operation and energy supply, prioritizing 230-240V AC, then 12V DC, and finally LP gas. The AES requires a continuous 12V DC supply to power its electronics. The refrigerator is designed for storing fresh and frozen foods and for making ice. It features a flame failure device for LP gas operation, which automatically opens to allow gas flow and energizes an electronic igniter. If the flame goes out, the reigniter automatically relights it. A 12V DC heating cable is included to evaporate water droplets that may form on the metal frame between the freezer and fresh food compartments in high humidity conditions.

Important Technical Specifications:

Overall Dimensions:

• RM4605: Height: 1385 mm, Width: 632 mm, Depth incl. cooling unit: 627 mm
• RM4805: Height: 1544 mm, Width: 632 mm, Depth incl. cooling unit: 627 mm

Recess Dimensions:

• RM4605: Height: 1365 mm, Width: 602 mm, Depth: 610 mm
• RM4805: Height: 1522 mm, Width: 602 mm, Depth: 610 mm

Capacity:

• RM4605: Gross: 186 litres
• RM4805: Gross: 224 litres

Weight (without packaging):

• RM4605: 56.5 kg
• RM4805: 58 kg

Electrical Data (watt):

• Input 240V: 325 W (both models)
• Input 12V: 275 W (both models)

LP Gas Data:

• Input, max (MJ/h): 1.66 (both models)
• Gas pressure: 2.70 kPa (supply pressure 2.75 kPa)
• Nominal working voltage: 12 - 13.8V DC

Ventilation Heights (Minimum):

• RM4605: Upper and lower side vent: 1375 mm; Roof vent and lower side vent: 1535 mm
• RM4805: Upper and lower side vent: 1534 mm; Roof vent and lower side vent: 1694 mm

Clearances to Combustible Materials (Minimum):

• Top, Side, Bottom, Rear: 0 mm

Gas Safety System Technical Specifications:

• Classification codes according to EN298: A-M-R-V-X-K
• Class of protection according to Low Voltage Directive: IP-20
• Waiting time / TW: 8 s
• Safety time / TS: 45 s
• Inter-waiting time / TWI: 120 s
• Working temperature: -20°C to +45°C
• Resistance to vibration according to: EN60068-2-6:1995

Usage Features:

• Automatic Energy Selector (AES): Simplifies operation by automatically selecting the best available energy source (230-240V AC, 12V DC, or LP gas). A 12V DC supply is always required for the electronics.
• Control Panel: Features an ON/OFF button, AES/GAS mode selector button, temperature selector button, and indicator lamps for AES mode, GAS mode, AC mode, DC mode, temperature setting, and gas failure warning.
• Starting the Refrigerator: Press the ON/OFF button. The refrigerator starts in the mode it was in when turned off. The AES/GAS button allows manual selection of AES or LP gas only.
• LP Gas Operation: Automatically selected when no AC or 12V DC (engine not running) is available. The flame failure device and electronic igniter ensure safe and immediate lighting. The reigniter automatically relights the flame if it goes out.
• 230-240V Operation: Prioritized when available. 12V DC is still needed for internal electronics.
• 12V Operation: Selected when the vehicle engine is running (detected by the alternator D+ connection). The system shuts down if 12V DC drops below 9V DC.
• Switching Between Energy Sources: The AES system incorporates delays (e.g., 15 minutes between engine shut-off and gas mode start) to prevent unnecessary gas operation during short stops.
• Temperature Regulation: An electronic thermostat, controlled by the temperature selector button, sets the temperature for all three energy sources. Larger circles on the indicator lamps (E) indicate lower temperatures.
• Travel Catch: Ensures the refrigerator door remains closed while the vehicle is in motion.
• Food Storage: Recommends keeping food in closed containers, allowing hot food to cool before storage, and following package instructions for frozen food storage.
• Ice Making: Ice can be made more rapidly by setting the thermostat to its highest position, then returning it to normal once ice is formed.
• Defrosting: Regular defrosting is recommended when frost reaches about 3 mm thickness. Do not use heating appliances or sharp objects to accelerate defrosting.
• Airing Position Card: A card is provided to keep the doors ajar when the refrigerator is not in use for extended periods or in storage, preventing odors and mildew.
• Heating Cable: A 12V DC heating cable is standard to evaporate condensation between compartments in high humidity. It can be left on continuously or used as needed. It draws 12V DC power continuously when in the ON position and should be turned off if a charging source is not available.
• Reversible Doors: The refrigerator is equipped with reversible doors; a special kit is required for this procedure.
• Removable Shelves: Shelves can be removed and repositioned by disengaging shelf locks with a flat-bladed screwdriver, tilting the shelf, and reinserting it into desired holes.

Maintenance Features:

• Cleaning: The interior should be cleaned regularly with a solution of bicarbonate of soda and warm water. Avoid detergents, scouring powder, strongly scented products, or wax polish. The exterior can be wiped with a damp cloth and mild detergent, but the door gasket should only be cleaned with soap and water. The cooling unit behind the refrigerator should be brushed clean periodically (with the refrigerator switched off).
• Bulb Replacement: The internal bulb can be replaced by removing the lamp cover and installing a new 12V, max 10W appliance bulb.
• Turning Off for Storage: For extended periods of non-use, turn off the refrigerator, shut off gas valves, unplug from the wall socket, empty, defrost, clean, and leave doors ajar.
• Annual Service: Dometic recommends an authorized service technician check the refrigerator once a year.
• Gas Safety: Ensure the gas safety shut-off valve is working properly and ventilation openings are unobstructed. The burner should be kept clean and free from combustible material.
• Troubleshooting: The manual provides steps for troubleshooting gas operation failures (e.g., checking gas supply, restarting), and issues with insufficient cooling (e.g., ventilation, frost, thermostat setting, gas pressure, ambient temperature, door seal).
• Professional Service: In case of abnormal operation (e.g., yellow burner flame, sooting, ignition failure, flame not remaining lit) or persistent issues, contact an authorized Dometic Service Center. The sealed cooling system must not be opened by unauthorized personnel due to corroding chemicals under high pressure.

Dometic RM4605 Specifications