Dometic L-2083 User Manual

Refrigerators & Freezers

English

Before installing your Tundra unit, refer to L-2083: Tundra Installation Check List.

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❖ INSTALLATION • OPERATION

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Revised: 11-04-03 L-0938

Table of Contents

Refrigerators & Freezers • Installation 3

Warnings ................................................................................................................................. 3

Locating the Data Plate 4

Inspection and Handling 4

Electrical Connection 5

DC Only Wiring ........................................................................................................................ 5

AC/DC Wiring (AC/DC Converter) ........................................................................................... 5

Portable Unit Wiring ................................................................................................................. 5

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Portable Units - Special Considerations .................................................................................. 6

DANFOSS Compressor Data .................................................................................................. 6

ABYC Standards - ABYC Guidelines E9 - Direct Current ........................................................ 8

ABYC Standards - ABYC Guidelines E8 - Alternating Current/Amperage ............................... 8

Final Installation Notes 9

Refrigerators & Freezers • Operation 10

Warnings ............................................................................................................................... 10

Temperature Control 10

Rotary Thermostat (Knob Control) ......................................................................................... 10

Digital Thermostat (Solid State Control) ................................................................................ 11

Loading the Appliance 11

Refrigerators & Freezers • Maintenance 12

Defrosting 12

Cleaning 12

Cleaning the Exterior ............................................................................................................. 12

Cleaning the Interior .............................................................................................................. 12

Cleaning the Condenser ........................................................................................................ 12

Refrigerators & Freezers • Trouble-Shooting 13

Appliance Does Not Operate ................................................................................................. 13

Excessive Appliance Noise.................................................................................................... 13

Insufficient Refrigerating Capacity ......................................................................................... 14

Manufacturer’s Limited Warranty Agreement 15

Dometic Corporation – Tundra Schedule of Limited Warranty Allowances 16

WARNINGS 17

Description of Drawings/Diagrams 18-26

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Refrigerators & Freezers • Installation

Warnings

This section of the manual refers to essential safety Installation information for all compressor-type refrigerators and freezers (including Portable and Special Purpose Units), provided by Dometic Corporation.

1. When replacing old appliances, before disposing of the old model, any locking device with hinging must be removed so that the door cannot be accidentally locked. All refrigerant must be removed according to current EPA regulations.

2. Unpacking and installation of the unit must be carried out with the utmost care. To avoid accidental injury use protective gloves, in particular for the models with a remote condensing unit.

3. After unpacking the appliance ensure that it is not damaged in any way. Notification of damage must be supplied to the dealer no later than 24 hours from the purchase date. The appliance must be used exclusively for the conservation of food and drinks.

4. Install the appliance away from any heat sources and allow for sufficient ventila-

tion. (See Installation Section)

5. After installation, wait at least one hour before switching on the appliance. This precaution protects the compressor from shipping mishaps and ensures optimum refrigeration efficiency.

6. Before connecting the appliance to the power supply, check that the line voltage corresponds to specifications stated on the appliance dataplate and the compressor.

7. Ensure the safety of operation by proper grounding of the electrical system.

8. After installation, check that the appliance is not standing on the power supply cable.

For any installation problems call your dealer, or call Dometic Corporation at 804-746-1313 or 954-973-2477. Ask for the Tundra service department.

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Locating the Data Plate

The dataplate bearing the model and serial number and technical data is located on the upper right-hand section, inside the appliance (for Portable units, it is located on the inside of the lid). An additional, identical dataplate is located on the compressor’s electronic module.

The first three digits of the serial number indicate the Year and Week of manufacture. Example: If your Serial Number = 0123456 it means:

0 = Year 2000 12 = 12th Week of the Year 3456 = Sequential Unit Number

Inspection and Handling

Ensure that the appliance is not damaged. Any damage resulting from transport must be reported to the dealer no later than 24 hours after delivery. A notice is printed on the top of each box, describing the general procedures required.

Handle the appliance with care. Take care when positioning the unit (especially in the case of refrigerators with remote condensing units), to avoid any obstruction to the connection lines. Always ensure that the appliance and remote condensing unit (where applicable), are installed on a dry, flat surface that will not allow it to slide around.

Ventilation is a requirement for the condensing system. Allow for air entry and discharge for the condensing system. Air entry and discharge requires a minimum of 50 total sq. inches each. (A T-80 unit requires a minimum of 75 total sq. inches for air entry and discharge.) A lower entry, and upper discharge is preferred. (See Fig. 5, page 21)

When installing the appliance in campers, motorhomes etc., install air vents connected directly to the outside.

Install appliance away from heat sources in a dry and well-ventilated area. Avoid direct contact with water. The appliances are

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Electrical Connection

Before connecting the appliance to the power supply, check that the line voltage corresponds to the indications on the appliance rating plate and those of the compressor plate. This appliance complies with EC directive 89/336 governing radio suppression.

Noise emission levels are maintained below 70 dB(A).

DC Only Wiring

For Direct Current (DC) refrigerators, connect the appliance to the DC distribution center. A circuit breaker of 15 Amps (maximum) must be used if the system is 12VDC, and 10 Amps (maximum) if the system is 24VDC. Make sure that proper polarity is maintained at all

times. Check that all grounding systems are in good working order. The appliance must be wired and grounded in accordance with the ABYC Guideline E9. (See ABYC Guide-

lines E9 pg. 8)

AC/DC Wiring (AC/DC Converter)

If the appliance is equipped with an AC/DC converter, then both AC and DC power may be used. The converter functions by converting AC power into DC power for the compressor. When the converter is connected to both AC and DC, and the AC power is on, then the unit will run on the AC power. However, if the AC power is lost, the unit will run on the DC power. If both types are to be used, connect the DC wiring to the DC distribution panel, and the AC wiring to the AC distribution panel, following ABYC guidelines. The converter may be connected to either AC or DC power only, if so desired.

For the DC wiring, follow the same instructions as stated in the ‘DC Only Wiring’ section. For the AC wiring, use a 10 Amp circuit breaker (maximum). Make sure that proper polarity is

maintained at all times. Check that all grounding systems are in good working order. The appliance must be wired and grounded in accordance with the ABYC Guideline E8.

(See ABYC Guidelines E8, pg. 8)

Portable Unit Wiring

The TPD23/AC models have AC and DC receptacles that are prewired to the unit. The TPD23 model has only the DC receptacle prewired. The TPD23AC model has both the AC and DC receptacles prewired.

Each unit comes equipped with the mating connector and cable as required (DC cable with TPD23 and both AC and DC cables with TPD23AC). These must be connected to their respective power sources as described in the wiring instructions listed above.

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Portable Units - Special Considerations

Since Portable units can be used in a variety of applications, and connected to a variety of power sources, the following must be considered:

• Cigarette lighters may not provide sufficient voltage and power to start and operate a portable unit. The unit may need to be wired separately from the lighter receptacle.

• Many DC outlets in vehicles (i.e. cigarette lighters, power outlets, etc.), are not powered when the ignition switch is turned to “Off”. Check available outlets for this condition before leaving the unit unattended.

• Some DC outlets or receptacles remain powered when the ignition switch is turned OFF, but do not have enough voltage to restart the compressor when required. Check for this condition before leaving the unit unattended.

• Power outlets or receptacles that are connected directly to the battery, and have a higher amp fused circuit (40 amps vs. 15-20 amps) will generally restart the compressor with the ignition switch turned OFF.

Caution must be taken when the unit is left unattended under these circumstances, as the battery will continue to drain down as the compressor cycles and runs. This can cause the battery voltage to drop too low to restart the vehicle’s engine. The cut-out voltage that protects the compressor is 10.4 volts. Therefore, if the unit is to be operated for long periods of time without replenishing the battery, another power source may need to be provided or the unit should be shut off, and the contents removed.

• Ambient conditions, wire sizes and battery quality can affect operation.

DANFOSS Compressor Data

Voltage Range

12V systems: From 10.4V to 17V 24V systems: From 22.8V to 31.5V

The electronic unit will calibrate automatically to the applied voltage. This means that if the battery voltage is less than 17V, the electronic unit assumes that it is working in a 12V system. If the voltage is higher than 17V, the electronic unit assumes that it is working in a 24V system. Consequently, the compressor does not run at power supply voltages between 17V and the desired battery protection cut-out voltage of 22.8V, for 24V systems.

Protection Systems

The Danfoss compressor protection system facilitates protection against compressor overload and start failure, fan overload and electronic unit overheating as well as destructive battery discharge. When an overload protection is activated, the compressor enters a cycle in which it makes start attempts at approximately 60 second intervals until a successful start is achieved.

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Overload Protections

The compressor overload and start protection cuts off power to the compressor if the compressor speed drops below approximately 1,900 rpm, or if this motor speed is not reached during the start sequence. Possible reasons for overload protection activating could be too high refrigeration system pressures during operation or lack of pressure equalizing at start.

The fan overload protection stops the compressor if the fan current exceeds 0.5 A or 1 A

An overheating of the electronic unit heat sink will cause the compressor to stop. Restart will occur automatically when a normal temperature has been reached. If a fan is installed, it will continue to run when the compressor stops, due to overload or electronic unit overheating.

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Voltage Protection

If a voltage outside any operational range is applied to the electronic unit, the compressor does not start, or it stops if the voltage limit is exceeded during operation. The compressor will restart automatically, approximately 1 minute after the supply voltage has reached the reset voltage within the range in question.

Battery Protection

The Danfoss electronic unit provides protection as follows:

Standard Battery Protection Settings

12V cut-out 12V cut-in 24V cut-out 24V cut-in

10.4 11.7 22.8 24.2

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ABYC Standards - ABYC Guidelines E9 - Direct Current

Conductor Sizes For 3 Percent Drop in Voltage

ABYC Standards - ABYC Guidelines E8 - Alternating Current/Amperage

Temperature Rating of Conductor Insulation (Guidelines when using an AC/DC Converter)

60°C 75°C 80°C 90°C 105°C 125°C 200°C

(140°F) (167°F) (176°F) (194°F) (221°F) (257°F) (392°F)

Conductor Outside Inside Outside Inside Outside Inside Outside Inside Outside Inside Outside Inside or Inside

Size Engine Engine Engine Engine Engine Engine Engine Engine Engine Engine Engine Engine Engine

(AWG) Spaces Spaces Spaces Spaces Spaces Spaces Spaces Spaces Spaces Spaces Spaces Spaces Spaces

18 7.0 4.1 7.0 5.3 10.5 8.2 14.0 11.5 14.0 11.9 17.5 15.6 17.5

16 10.5 6.1 10.5 7.9 14.0 10.9 17.5 14.4 17.5 14.9 21.0 18.7 24.5

14 14.0 8.1 14.0 10.5 17.5 13.7 21.0 17.2 24.5 20.8 28.0 24.9 31.5

12 17.5 10.2 17.5 13.1 24.5 19.1 28.0 23.0 31.5 26.8 35.0 31.2 38.5

10 28.0 16.2 28.0 21.0 35.0 27.3 38.5 31.6 42.0 35.7 49.0 43.6 49.0

8 38.5 22.3 45.5 34.1 49.0 38.2 49.0 40.2 56.0 47.6 63.0 56.1 70.0

6 56.0 32.5 66.5 49.9 70.0 54.6 70.0 57.4 84.0 71.4 87.5 77.9 94.5

4 73.5 42.6 87.5 65.6 91.0 71.0 94.5 77.5 112.0 95.2 119.0 105.9 126.0

3 84.0 48.7 101.5 76.1 105.0 81.9 108.5 89.0 126.0 107.1 136.5 121.5 147.0

2 98.0 56.8 119.0 89.3 122.5 95.6 126.0 103.3 147.0 125.0 157.5 140.2 168.0

1 115.5 67.0 136.5 102.4 147.0 114.7 147.0 120.5 171.5 145.8 185.5 165.1 196.0

0 136.5 79.2 161.0 120.8 171.5 133.8 171.5 140.6 199.5 169.6 213.5 190.0 227.5

00 157.5 91.4 185.5 139.1 199.5 155.6 199.5 163.6 231.0 196.4 248.5 221.2 259.0

000 182.0 105.6 217.0 162.8 231.0 180.2 231.0 189.4 269.5 229.1 287.0 255.4 301.0

0000 210.0 121.8 252.0 189.0 269.5 210.2 269.5 221.0 311.5 264.8 332.5 295.9 357.0

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Final Installation Notes

• For all appliances, AVOID the use of any electrical adapters or extension cords.

• After installation, allow the appliance to sit for at least one hour before starting.

• The manufacturer assumes no responsibility for any injuries or damage caused

by noncompliance with any of the installation regulations.

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