Thetford N304M.3, N404M.3, N504M.3 Installation Manual

Installation Manual

For Australian refrigerator models:

N304M.3 (93 liter 3-way operation with LP gas, 240 volts AC, or 12 volts DC )

N404M.3 (128 liter 3-way operation with LP gas, 240 volts AC, or 12 volts DC )

N504M.3 (164 liter 3-way operation with LP gas, 240 volts AC, or 12 volts DC )

!

WARNING

FOR YOUR SAFETY

Do not store or use gasoline or other ammable vapors and liquid in the

vicinity of this or any other appliance.

FOR YOUR SAFETY

If you smell gas:

!

WARNING

DO NOT install this refrigerator in below deck marine applications. Do not install this refrigerator in
xed indoor cabin or other dwelling applications. This refrigerator must use only Thetford designed and
approved outside air intake and exhaust ventilation for correct and safe operation. Any other ventilation
could cause lethal combustion exhaust fumes and/or explosive LP gas fumes to be in the living area and/or
to be below deck.

Improper installation, adjustment, alteration, service or maintenance can
cause personal injury or property damage. Refer to this manual. For

assistance or additional information, contact a qualied installer, service

agency, or the LP gas supplier.

1. Open windows.

2. Don’t touch electrical switches.

3. Extinguish any open ame.

4. Immediately call your gas supplier.

Thetford Australia
41 Lara Way

Campbelleld, VIC 3061

Thetford Customer Support

Telephone: [phone]

Fax: [phone]

Web Site: www.thetford.com.au

Part No. 636524C (10/16/2014)

Table of Contents

Safety Awareness .....................................................................................................................................................................................2

Safety Instructions ....................................................................................................................................................................................2

Certication and Code Requirements.......................................................................................................................................................3

Ventilation Requirements..........................................................................................................................................................................3

Assemble the Enclosure ...........................................................................................................................................................................4

Install the Upper and Lower Vents............................................................................................................................................................4

Install the Refrigerator ..............................................................................................................................................................................7

Installation Options ...................................................................................................................................................................................7

Install the decorative door panel .......................................................................................................................................................7

Reverse the door swing.....................................................................................................................................................................8

Change the travel latch position ........................................................................................................................................................ 9

Connect the Electrical Components .........................................................................................................................................................9

Connect the 240 volt AC supply ......................................................................................................................................................10

Connect the 12 volt DC supply (3-way models only).......................................................................................................................10

Connect the LP Gas Components .......................................................................................................................................................... 11

Connect the LP gas supply system ................................................................................................................................................. 11

Connect the LP gas supply line to the refrigerator .......................................................................................................................... 11

Examine the LP gas supply system for leaks .................................................................................................................................. 11

Operation Check.....................................................................................................................................................................................12

Troubleshooting Refrigerator Problems ..................................................................................................................................................12

Safety Awareness

Read this manual carefully and understand the contents before you install the refrigerator.

Be aware of possible safety hazards when you see the safety alert symbol on the refrigerator and in this manual. A signal word follows
the safety alert symbol and identies the danger of the hazard. Carefully read the descriptions of these signal words to fully know their
meanings. They are for your safety.

!

WARNING

!

CAUTION

This signal word means a hazard, which if ignored, can cause dangerous personal injury, death, or much
property damage.

This signal word means a hazard, which if ignored, can cause small personal injury or much property
damage.

Safety Instructions

!

WARNING

- This refrigerator is made for use in Recreational Vehicle and towable applications, and is correct for
camping use. It is made to operate with, and be connected to, multiple energy sources. Disconnect all
energy sources before you remove the refrigerator or do servicing to the refrigerator.

- This refrigerator is not approved for use as a free standing refrigerator. It is equipped for the use of LP

gas only and can not be changed to use natural gas.

- Incorrect installation, adjustment, alteration, or maintenance of this refrigerator can cause personal

injury, property damage, or both.

- Obey the instructions in this manual to install the intake and exhaust vents.

Installation Manual 2

- Do not install the refrigerator directly on carpet. Put the refrigerator on a metal or wood panel that
extends the full width and depth of the refrigerator.

- Do not allow anything to touch the refrigerator cooling system.

- LP gas can ignite and cause an explosion that can result in property damage, personal injury, or death.

Do not smoke or create sparks. Do not use an open ame to examine the LP gas supply line for leaks.

Always use two wrenches to tighten or loosen the LP gas supply line connections.

- Make sure the electrical installation obeys all applicable codes. See “Certication and Code

Requirements” section.

- Do not bypass or change the refrigerator’s electrical components or features.

- Do not spray liquids near electrical outlets, connections, or the refrigerator components. Many liquids

are electrically conductive and can cause a shock hazard, electrical shorts, and in some cases re.

- The refrigerator cooling system is under pressure. Do not try to repair or to recharge a defective cooling

system. The cooling system contains sodium chromate. The breathing of certain chromium compounds
can cause cancer. The cooling system contents can cause severe skin and eye burns, and can ignite
and burn with an intense ame. Do not bend, drop, weld, move, drill, puncture, or hit the cooling system.

!

CAUTION

- The rear of the refrigerator has sharp edges and corners. To prevent cuts or abrasions when working on

the refrigerator, use caution and wear cut resistant gloves.

Certication and Code Requirements

This refrigerator is certied under the latest edition of the Australian Gas Association Standard AS4555/AG105 and the Australian

National Electric Standard for household and similar electrical appliances AS/NZS 3350.1:1994.

The refrigerator is made for installation in a caravan or a recreational vehicle. The installation must obey the requirements of this
“installation Manual” for the THETFORD limited warranty to be in effect.

The installation must agree with local codes. In the absence of local codes, the installation must obey these standards:

- Gas Installations AS5601.

- National Fuel Gas Code, ANSI Z223.1 (latest edition).

- Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280.

- Standard for Recreational Vehicles, RVIA A119.2 latest edition.

- All gas supply piping and ttings must obey local, and national codes about type and size.

Ventilation Requirements

!

WARNING

The completed installation must:

- Make sure there is sufcient intake of fresh air for combustion.

- Make sure the living space is completely isolated from the combustion system of the refrigerator.

- Make sure there is complete and unrestricted ventilation of the ue exhaust which, in gas mode, can

produce carbon monoxide. The breathing of carbon monoxide fumes can cause dizziness, nausea, or

in extreme cases, death.

- Make sure the refrigerator is completely isolated from its heat generating components through the

correct use of bafes and panel construction.

Installation Manual 3

Certied installation needs one lower intake vent and one upper exhaust vent. Install the upper exhaust vent either through the roof or
through the side wall of the vehicle exactly as written in this manual. Any other installation method voids both the certication and the
factory warranty of the refrigerator.

The bottom of the opening for the lower intake vent, which is also the service access door, must be even with or immediately below the
oor level. This allows any leaking LP gas to escape to the outside and not to collect at oor level.

While there are no maximum clearances specied for certication, the following maximum clearances are necessary for correct
refrigeration:

Bottom 0 mm min. 0 mm max.

Each Side 0 mm min 3 mm max.

Top 0 mm min. 6 mm max.

Rear 0 mm min. 25 mm max.

These clearances plus the lower and upper vents cause the natural air draft that is necessary for good refrigeration. Cooler air
comes in through 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 ow is blocked or decreased, the refrigerator will not cool

correctly.

Assemble the Enclosure

1. Make sure the enclosure is:

N304M models - 756 mm high x 521 mm wide x 543 mm deep.

N404M models - 929 mm high x 602 mm wide x 620 mm deep.

N504M models - 1083 mm high x 602 mm wide x 620 mm deep.

2. Make sure the oor is solid and level.

- The oor must be metal or a wood panel and extend the full width and depth of the enclosure.

- The oor must be able to support the weight of the refrigerator and its contents.

3. Make sure there are no adjacent heat sources such as a furnace vent, a hot water heater vent, etc.

Install the Lower and Upper Vents

1. Using the following chart, decide which vents and rough opening (RO) sizes to use.

Certied Vent P/N RO Height RO Width

Upper Roof Exhaust Cap 622293 N/A N/A

Upper Roof Exhaust Vent 616319 610 mm 133 mm

Upper Side Exhaust Vent 617485 184 mm 457 mm

Lower Side Intake Vent 617484 248 mm 492 mm

Universal Upper & Lower Vent 620505 157 mm 452 mm

Universal Upper & Lower Vent 621156 349 mm 546 mm

Universal Upper & Lower Vent 631140 249 mm 490 mm

Lower Side Intake Vent 631246 156 mm 450 mm

Upper Side Exhaust Vent 631247 156 mm 450 mm

Installation Manual 4