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Owner’s Manual  9

NOTE:  Your dealer or an authorized Thetford Service Center 

must do this procedure.

WARNING:

 

 Make sure the combustion seal is 

not broken, is completely around the refrigerator 

mounting flanges, and is between the mounting 

flanges and the wall of the enclosure.  If the 

combustion seal is not complete, exhaust fumes 

can be present in the living area of the vehicle.  The 

breathing of exhaust fumes can cause dizziness, 

nausea, and in extreme cases, death.

1.  Push the refrigerator completely into the enclosure.

2.  Remove the door from the refrigerator.

3.  Put the screws though the mounting flanges and into the wall.

4.  Attach the door to the refrigerator

CAUTION:

  The rear of the refrigerator has sharp 

edges and corners.  To prevent cuts or abrasions 

when working on the refrigerator, be careful and 

wear cut resistant gloves.

5.  Open the lower intake vent and put the screws through 

refrigerator and into the floor.

WARNING:

  To avoid possible propane gas leaks, 

always use two wrenches to loosen and tighten the 

gas supply line at the refrigerator’s manual shut off 

valve.

6.  Attach the gas supply line to the manual shut off valve of the 

refrigerator.

7.  Open the valve at the propane gas tank(s).

WARNING:

  Do not allow the leak checking 

solution to touch the electrical components.  Many 

liquids are electrically conductive and can cause a 

shock hazard,electrical shorts, and in some cases 

fire.

8.  Examine the gas supply line for leaks.

9.  Connect the DC wiring to the refrigerator:

-  Install the DC fuse or connect the DC wiring to the battery or 

the converter.

-  Connect the DC wires from the refrigerator.

10.  Connect the AC power cord to the receptacle.

Reinstall the Refrigerator

The parts of the wiring pictorial are (Art01995):

240 VAC Power cord ......................................................... 108

DC heater............................................................................ 94

3 Amp fuse ........................................................................ 220

Selector switch .................................................................. 207

Thermocouple ................................................................... 221

Thermostat / gas safety valve ............................................. 91

Thermocouple interrupter.................................................. 222

Flame meter ...................................................................... 217

AC heater ............................................................................ 92

-12 VDC Power supply...................................................... 224

+12 VDC Power supply ....................................................... 99

20 Amp fuse(N304.3) or

25 Amp fuse (N404.3 and N504.3) ................................... 223

Wiring Pictorial

Replacement Parts

You may purchase replacement parts through your local RV 

dealer or an authorized Thetford Service Center.

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Summary of Contents for N304.3

Page 1: ...rt No 634034B 04 08 2011 Installation and Owner s Manual For Australian refrigerator models N304 3 93 liter 3 way operation with propane gas 240 volts AC or 12 volts DC N404 3 128 liter 3 way operatio...

Page 2: ...he refrigerator creates a fire hazard Do not use the area behind the refrigerator to store anything especially flammable materials gasoline cleaning supplies etc Do not remove the round ground prong f...

Page 3: ...peration during travel While the refrigerator should be level when the vehicle is stopped performance during travel is not usually effected Do not operate the refrigerator on propane gas while travell...

Page 4: ...tor switch to the propane gas position 4 Push and hold in the safety valve and push in the igniter several times in rapid succession for about five seconds WARNING Do not hold in the safety valve for...

Page 5: ...tion is intended only to maintain the temperature of the refrigerator and its contents when they are already cool The DC operation is not intended for the initial start up and cooling of the refrigera...

Page 6: ...or and freezer Remove the wet towels etc and dry the interior Remove the drain hose from the large container and put the drain hose back into the drip cup N404 and N504 models only Remove the large co...

Page 7: ...ee Art00980 Gently pull the paper You should feel a slight drag between the gasket and the cabinet Do this on all four sides of the door If you do not feel a slight drag on the paper the door is not s...

Page 8: ...clean the orifice with a pin or other objects Remove the Refrigerator NOTE Your dealer or an authorized Thetford Service Center must do this procedure CAUTION The rear of the refrigerator has sharp ed...

Page 9: ...se two wrenches to loosen and tighten the gas supply line at the refrigerator s manual shut off valve 6 Attach the gas supply line to the manual shut off valve of the refrigerator 7 Open the valve at...

Page 10: ...s supply line for leaks Always use two wrenches to tighten or loosen the propane gas supply line connections Make sure the electrical installation obeys all applicable codes See Certification and Code...

Page 11: ...the lower intake vent goes up around the refrigerator coils where it removes the excess heat from the refrigerator components and goes out through the upper exhaust vent If this air flow is blocked or...

Page 12: ...stance 25 from the floor level to the top of the rough opening for the upper exhaust vent is at least 940 mm for N304 models 1060 mm for N404 models and 1210 mm for N504 models or poor cooling perform...

Page 13: ...ch the travel latch with the screws Remove the screw 41 from the travel latch plate 162 on the door Remove the screw 41 from the filler plate 163 on the door Put the travel latch plate on the other si...

Page 14: ...refrigerator Put the AC power cord into a grounded three prong power point Make sure the power point is 100 150 mm above the floor of the enclosure and is positioned within easy reach of the lower int...

Page 15: ...type Use of 3 8 inch copper tubing as the gas supply line and a 3 8 inch SAE UNF 5 8 18 male flare fitting as the connection to the refrigerator Put the propane gas supply line up through the floor of...

Page 16: ...eck That the propane gas supply line is purged That the propane gas tank s is not empty That the valve of the propane gas tank s is open That the propane gas is at the correct pressure That the manual...

Page 17: ...Owner s Manual 17 Art 00956 77 78 79 80 Art00980 75 76 Art00955 167 Art01114 52 Art00977 38 158 37 157 161 166 162 Art00979...

Page 18: ...162 163 41 41 Art01570 Art01571 162 163 41 Art01288 28 156 121 Art01313 63 64 159 160 161...

Page 19: ...Art01572 161 11 10 9 Art01608 14 13 15 16 25 24 Art01637 9 10 12 14 11 13 16 9 15 Art01638 10...

Page 20: ...5 20 9 RED BLK 4a 4b 2a 2b 3b 3a 1a 1b BLK BLU GRN YEL YEL YEL BRN LINE BLU NEUTRAL YEL WHT BRN WHT BLU RED BLK GRN YEL Art01995 94 92 207 221 91 222 217 220 223 108 224 99 Art01890 N304 models 165 91...

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