DOMETIC RM4200
Owner's Manual

BUILDING-IN

The refrigerator is intended for installation in a caravan or motorhome, and the description relates to this application. The refrigerator must not be exposed to radiated heat from hot objects (e.g. below a cooker without proper heat shielding). Excessive heat irradiation impairs performance and leads to increased energy consumption. For this reason the refrigerator should be installed if possible not at the entrance side of the vehicle - normally orientated south and often with an awning - which would impair the dispersion of heat and combustion gases from the ventilation openings. It is not a good practice to install the refrigerator so that the vent openings are covered by the vehicle's entrance door when this is open. This would reduce the ventilation air flow to the cooling unit and reduce refrigeration performance.

Ventilation grilles Fig. 2

The openings in the caravan wall must be fitted with the Electrolux ventilation systems. Fitting the grilles, model A 1620, which were specially developed by Electrolux for this purpose (shown as D in fig. 6). It is a good idea, to install the frame R 1640 (A in the same figure), at the same time. Then the grilles can be easily removed which permits inspection and small repairs to be carried out without the necessity for removing the refrigerator from the recess. If there is no outer grille at floor level where leaking gas can escape, a 40 mm hole to the outside should be made in the floor of the recess to drain any unburnt gas to the outside gas. Fit the hole with wire mesh and an angled plate to protect from stones, mud etc.

Removal of flue gases

The enclosure

The refrigerator must be installed in an enclosure, the

dimensions of which are shown in TECHNICAL DATA. The bottom of the enclosure must be horizontal and even so that the refrigerator can be easily pushed into place. It must be sturdy enough to carry the wieght of the refrigerator. Battens must be installed at the enclosure and fitted with sealing strips, as shown in fig. 4. Slide in the refrigerator until it is flush with the front of the recess. There must be 10-20 mm free space behind the refrigerator. Four fasteners are fitted in plastic bushings in the side walls of the fridge, fig. 7. They are used for securing the refrigerator in the enclosure. The side walls of the enclosure and/or any wooden braces installed to hold the refrigerator must be dimensioned to seat the screws securely, also considering the forces due to the movement of the vehicle. With the refrigerator in place, drive the screws through the bushings in the lining (fig.7) of the refrigerator into the walls of the enclosure. There must not be more than 3mm of clearance between refrigerator and enclosure on each side. If necessary, wooden strips or similar should be fitted. Note: This is the only approved means of securing the refrigerator to the enclosure and to the vehicle. Fasteners penetrating other parts of the insulation (PU) foam of the refrigerator might damage components like electric wiring etc.

The ventilation passage at the rear of the recess, between the outer wall of the vehicle and the refrigerator (fig. 6), is sealed off against the living space, and so cold draughts are excluded (winter camping) and no flue gases can penetrate into the vehicle. Thus a special flue outlet is no longer necessary - the gases are dispersed through the upper vent grille. Note: With this mode of installation the same type of grilles (without an integrated flue outlet), should be installed at the upper as well as at the lower vent open-ning. The angled T-piece for the flue tube (when delivered) should not be used in this case. The top of the enclosure above the flue tube (I), fig. 6, should be covered with aluminum sheet metal, as indicated in (B), to facilitate the heat dispersion. In fig. 6 the letters have the following meaning: A. B. C. D. E. F. G. H. I. Frame R 1640 for the grilles Aluminum cladding Condenser of cooling unit Vent grill A 1620 Sealing profile (optional extra) Width 522 mm Refrigerator rear wall Wooden batten approx. 10 x 20 mm (see fig. 4) Height of the enclosure (see TECHNICAL DATA) Flue tube

LP GAS CONNECTION

CHECK THAT THE GAS SUPPLIED TO THE REFRIGERATOR IS AT THE CORRECT PRESSURE. SEE THE REDUCING VALVE ON THE LP GAS CONTAINER. The refrigerator is designed for operation on LP gas of Butane type the pressure of which must be 28 mbar for Butane and 37 mbar for Propane. The refrigerator is not designed for operation on town gas or natural gas. Check that this is stated on the data plate. The refrigerator is not designed for operation on town gas or natural gas. The gas installation should only be carried out by an authorised gas fitter.

VENTILATION OF THE UNIT

At high ambient temperatures the refrigeration unit will only perform adequately when properly ventilated. The refrigeration unit is ventilated via two openings in the wall of the caravan (see fig. 5). Fresh air enters through the lower opening and warm air is discharged through the upper one. Locate the lower opening immediately above the floor of the recess, and the upper one as high as possible above the condenser (C) of the refrigeration unit, at least as shown in fig. 6b but preferably as shown in fig. 6a.