Dometic NDR1292 Refrigerator Instruction Manual
Dometic NDR1292 Refrigerator
Dometic NDR1292 Refrigerator
Dometic NDR1292 Refrigerator Instructions
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Dometic NDR1292 Refrigerator Specifications
| Feature | Specification |
|---|---|
| Product Type | Absorption refrigerator for RVs and mobile homes (2-way: 120 V AC / LP gas) |
| Total Refrigerated Volume | 12 cu.ft |
| Overall Dimensions (H x W x D) | 59-31/32 x 33-11/16 x 26-21/32 in (1523 x 855 x 677 mm) |
| Recess Dimensions (H x W x D) | 59-1/16 x 32-3/4 x 24 in (1500 x 832 x 610 mm) |
| Recess Depth with Ventilator Fans | Add 1 in (25 mm) for units with one or two optional ventilator fans |
| Minimum Ventilation Height (roof vent and lower side vent) | 65 in (1651 mm) |
| Minimum Clearances to Combustible Materials | Top 0 in, Side 0 in, Bottom 0 in, Rear 0 in |
| Certified Vent System Kit | Kit No. 5A |
| Vent Kit Components | Roof Base 3103633.XXX or 3310893.XXX; Roof Cover 3103634.XXX or 3310894.XXX; Lower Side Vent 3103649.XXX; Power Vent Ass'y 3108705.744 |
| Insulation | Vacuum insulated panels (top, back, bottom, sides and doors) |
| Cooling Agent | Ammonia / hydrogen absorption system, sodium chromate corrosion protection (less than 2 weight % of the coolant) |
| Certification | ANSI Z21.19 / CSA 1.4 (Refrigerators using gas fuel) |
| Gas Connection | 3/8 in SAE (UNF 5/8 in-18) male flare at manual gas valve |
| LP Gas Operating Pressure | 11 inches water column |
| Burner Jet | No. 76 (part 2007419-33/2) |
| AC Heater | 420 W, 120 V (2 x 60 V, 210 W), part 3850644-46/3 |
| AC Supply | 120 V AC ± 10%, grounded three-prong plug |
| Power Cord Free Length | 2 ft |
| AC Receptacle Location | To the right of the refrigerator, 10 in above the mounting floor |
| 12 V DC Control Supply | Continuous 12 V DC needed; controls work down to 9.6 V DC (9.5 to 15 V DC service range) |
| DC Wire Size / Max. Total Conductor Length | 12 AWG / 27 ft (8 m) |
| Fuses | Control system 3 A; AC heater 5 A; power vent fans 3 A inline |
| Operating Modes | AES/AUTO (AC priority, automatic switch to GAS) and GAS only |
| Temperature Settings | 5 positions (COLD 1 to 5 COLDEST) |
| Electrode Gap | 1/8 in to 3/16 in (3–5 mm) |
| Ignition Attempts | Approx. 45 s per attempt, three attempts at two-minute intervals |
| Thermistor Reading | 7–10,000 ohms at 32°F |
| Thermocouple Reading | 25–35 millivolts |
| Door Panel Size, Frozen Food Compartment (H x W) | 55-3/16 to 55-1/8 x 10-9/16 to 10-7/16 in (1402–1400 x 288–265 mm) |
| Door Panel Size, Fresh Food Compartment (H x W) | 55-3/16 to 55-1/8 x 16-15/16 to 16-13/16 in (1402–1400 x 430–427 mm) |
| Door Panel Max. Thickness | 5/32 in (4 mm) |
| Door Swing | Not reversible |
| Warranty | Limited 3 years parts and freight, 2 years labor |
Dometic NDR1292 Refrigerator Details
The Dometic NDR1292 is the largest model in this Dometic absorption refrigerator range. It is a two-door, side-by-side unit with separate frozen food and fresh food compartments. It cools without a compressor: heat from an electric heater or an LP gas burner drives ammonia through a finned condenser and into the evaporator, where circulating hydrogen makes it evaporate and cool the freezer. On first start-up, the cooling cycle can take up to four hours to become fully operational.
Installation calls for care because of the vacuum insulated panels in the top, back, bottom, sides and doors. If a panel is punctured, insulation is lost and cooling suffers. The warranty does not cover punctures after receipt. The unit must sit level on a solid floor inside a substantial enclosure, never directly on carpet. A wood strip across the upper opening anchors the top frame, and a sealing strip on the front frame separates the combustion system from the living space.
The NDR1292 has its own securing sequence. First, two screws go through the front base, one through each hinge, after the lower front strip is slid under the bottom hinge plate. Second, the four screws holding the top decoration panel are removed so the top frame screws can be fitted, and the openings are sealed with aluminum tape. Third, two screws go into the rear base. Any gap above the unit wider than 1-1/2 inches should be blocked so heat does not get trapped there.
The control panel has an ON/OFF button, an AES/AUTO/GAS selector and a temperature selector. In AES/AUTO mode, AC power has priority, and the unit switches to gas by itself when AC is lost. If ignition fails, the CHECK lamp lights; pressing ON/OFF off and back on resets it. Two limp modes keep the unit cooling if the display module or the temperature sensor fails.
The climate control uses 12 V DC to evaporate condensation on the metal frame between the two compartments in hot, humid weather. The low ambient control keeps the unit running reliably when temperatures stay below 50°F for long periods and should be switched off above 50°F. These switches are located beneath the top decoration panel, or they appear as CLC and LAC buttons on the control panel.
Inside, the coldest areas are under the cooling fins and at the bottom, while the upper door shelves are the warmest. The freezer is not designed for deep or quick freezing. Spare parts listed for this model include a two-piece bottle holder, crisper and meat locker boxes, a six-piece door shelf set and a freezer door shelf. To defrost, switch the unit off, empty it, leave the doors open and place the drip tray under the finned evaporator. Never use sharp tools or hot air blowers.
For maintenance, the vents, coils and flue should be inspected once or twice a year. A qualified service technician should check the connections, controls, gas pressure and flue baffle every year. Before the gas safety shutoff test, bubble checks and burner jet cleaning are done in wood alcohol. The warranty requires a yearly preventive maintenance visit at a Dometic Authorized Service Center.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Dometic NDR1292 Refrigerator, and we answer them below.










