DOMETIC DSP-T12 Air Conditioners Instruction Manual

DOMETIC DSP-T12 Air Conditioners

Product Information

The DC-Kit PP 12, DSP-T 12, and DSP-T 24 are accessories for air conditioners. They are DC Extension Kits used for installation and operation of the air conditioners.

Product Usage Instructions

1. Read the installation and operating manual carefully.
2. Ensure that the DC-Kit is suitable for your air conditioner model.
3. Follow the instructions provided in the manual for proper installation.
4. Make sure to connect the appropriate wires as indicated in the diagrams.
5. Pay attention to the symbols and safety instructions mentioned in the manual.
6. Keep the manual with the product at all times for future reference.

Explanation of symbols

• DANGER!
  Safety instruction: Indicates a hazardous situation that, if not avoided, will result in death or serious injury.

• WARNING!
  Safety instruction: Indicates a hazardous situation that, if not avoided, could result in death or serious injury.

• NOTICE!
  Indicates a situation that, if not avoided, can result in property damage.

• NOTE
  Supplementary information for operating the product.

General safety instructions

This product is only suitable for the intended purpose and application in accordance with these instructions.
This manual provides information that is necessary for proper installation and/or operation of the product. Poor installation and/or improper operating or mainte-nance will result in unsatisfactory performance and a possible failure.
The manufacturer accepts no liability for any injury or damage to the product resulting from:

• Incorrect assembly or connection, including excess voltage
• Incorrect maintenance or use of spare parts other than original spare parts provided by the manufacturer
• Alterations to the product without express permission from the manufacturer
• Use for purposes other than those described in this manual

Dometic reserves the right to change product appearance and product specifications.
General safety
WARNING!

• Observe the safety instructions in the installation and operating man-ual for the components supplied and your Dometic air conditioner.

• Only use the device as intended.

• People whose physical sensory or mental capacities prevent them from using this device safely should not operate it without the supervi-sion of a responsible adult.

• Electrical devices are not toys!
  Always keep and use the device out of the reach of children.

• Children must be supervised to ensure that they do not play with the device.

• Maintenance and repair work may only be carried out by specialist companies who are familiar with the risks involved and the relevant regulations.

Safety when installing and repairing
WARNING!
Installing and repairing the device may only be performed by special-ist companies that are familiar with the risks as well as the guidelines and safety precautions to be applied.
Safe operation
WARNING!
Note the following basic safety information when using electrical devices to protect against:

• Electric shock
• Fire hazards
• Injury

1. Only operate the system if you are certain that none of the housings and cables are damaged.
2. The DC power connection cables are designed for high levels of current. Do not make any changes to the cables. If necessary, get a specialist company to do this for you.
3. Make sure the air inlets and outlets of the device are not covered.
4. Ensure good ventilation. The inverter produces dissipated heat which has to be diverted.
5. Always disconnect the power supply when working on the device.

Scope of delivery

Before starting up the system, check that all the parts belonging to the scope of delivery are present.

DC-Kit PP12

DC-Kit DSP-T12

9600002564
1| Connection cable|
| Black power supply line (35 mm², 1.5 m long)| 4441300120
| Red power supply line (35 mm², 1.5 m long)| 4441300119
1| Adapter cable for FreshJet/FreshLight/FreshWell| 4441300221
1| Extension cable| 4441300124
1| Installation and operating manual| 4445101954

DC-Kit DSP-T24

9600002564
1| Connection cable|
| Black power supply line (35 mm², 1.5 m long)| 4441300120
| Red power supply line (35 mm², 1.5 m long)| 4441300119
1| Adapter cable for FreshJet/FreshLight/FreshWell| 4441300221
1| Extension cable| 4441300124
1| Installation and operating manual| 4445101956

Target group for this instruction manual
The installation information in this instruction manual is intended for specialist companies that are familiar with the guidelines and safety precautions to be applied during the installation of vehicle accessory parts.
All other chapters are intended for the users.

Intended use

The “DC kit” extension kit is suitable for equipping the following Dometic air conditioning units for DC power drive operation:

• DC-Kit PP12 (ref. no. 9100300003), 12 Vg
  • FJ1100
• DC-Kit DSP-T12 (ref. no. 9100300002), 12 Vg
  • FJ1100, FJ1700, FJ2200, FJ2700, FJ3200
  • FL1600, FL2200
  • FW3000
• DC-Kit DSP-T24 (ref. no. 9100300073), 24 Vg
  • FJ1100, FJ1700, FJ2200, FJ2700, FJ3200
  • FL1600, FL2200
  • FW3000

If the air conditioning unit does not have a heat pump (see instruction manual for air conditioning unit), the inverter may only be used for cooling by the air conditioning unit, not for heating mode, as the heating elements consume more current than the inverter can generate in continuous operation.

Technical description

The extension kit consists of the following components:

• The charging current distributor with low-voltage cut-off regulates the current distribution between the starter battery, supply battery and light system, as well as the operation of the air conditioning unit. It prevents the battery and the elec-tronics in the vehicle from overloading.

• The inverter supplies the air conditioning unit with the necessary input voltage of 230 Vw. The inverter generates this 230 V input voltage from the DC on-board supply in the vehicle.
  The built-in priority circuit is intended for distributing voltages in vehicles with two available current supplies. If there is mains voltage present at the device, this is prioritized. This ensures that the limited power of the battery is not used unnecessarily. If there is no mains voltage present, the DC on-board supply is used.

• The remote control can be used to switch the inverter on and off.

The charging current distributor has two relays that are used as follows:

• Power relay (Batt. 1/Batt. 2) to connect the starter and consumer battery
• Control relay to switch the compressor on and off
  • ECL-76:
  • ECL-102:
  • ECL-103:

Key for circuit diagrams

How the DC kit functions

The DC kit measures the light system voltage UD+ and compares this value against the value of the switch-on voltage Ue.
The voltage value Ue can be adjusted for ECL-76 and ECL-102 (12.5 V – 14.0 V). For ECL-103, the voltage value Ue is 26.6 V.
Supply from the battery with motor switched on

• If the light system voltage exceeds the voltage value Ue (UD+ > Ue), relay contact Batt. 1/Batt. 2 of the power relay closes. The starter battery and the consumer battery are therefore connected in parallel with low resistance and are charged together by the light system. In addition, the contact I2/I4 opens. This activates the air conditioning unit.
• If the light system voltage falls below the switch-off value Ua for the charging current distributor due to the high load from the air conditioning unit, relay contact Batt. 1/Batt. 2 opens and the parallel connection between the starter battery and the consumer battery ends. The light system now charges the starter battery. If the vehicle has a connecting cable between the two batteries, the consumer battery is also charged.
• In addition, the contact I2/I4 closes. This switches off the compressor of the air conditioning unit. The air conditioning unit fan and the inverter remain in operation.
• The lower limit value Ua can be adjusted for ECL-76 and ECL-102 (10.5 V – 12.5 V). For ECL-103, the voltage value Ua is 23.4 V.
• As soon as the voltage in the consumer battery has reached the switch-on value Ue for the charging current distributor, the compressor of the air conditioning unit switches on again.
• If the voltage in the consumer battery drops further and falls below the switch-off point for the inverter, the inverter switches off.

Supply from the battery with motor switched off

• If the vehicle engine is switched off (UD+ = 0 V), relay contact Batt. 1/Batt. 2 and relay contact I2/I4 are open. The air conditioning unit can be operated and only takes power from the consumer battery. If the battery voltage falls below Ubatt = 10.5 V/21 V, the inverter switches off. There is no longer any voltage at the corresponding socket and the air conditioning unit switches off.
• As soon as the power from the consumer battery reaches the inverter’s switch-on point, the socket is supplied with voltage again. The air conditioning unit has to be switched back on manually.

DC-Kit PP12

• Air conditioner: FreshJet1100
• Circuit diagram:
• Charging current distributor: ECL-76
• Inverter: PerfectPower PP1002

DC-Kit DSP-T12

• Air conditioning units:
  • FreshJet1100/1700/2200/2700/3200
  • FreshLight1600/2200
  • FreshWell3000
• Circuit diagram:
• Charging current distributor: ECL-102
• Inverter: SinePower DSP1812T

DC-Kit DSP-T24

• Air conditioning units:
  • FreshJet1100/1700/2200/2700/3200
  • FreshLight1600/2200
  • FreshWell3000
• Circuit diagram:
• Charging current distributor: ECL-103
• Inverter: SinePower DSP1824T

Installing and connecting the DC kit

WARNING!

• The DC kit may only be installed by specialist companies.

• To prevent the risk of short circuits, always disconnect the negative terminal of the vehicle’s electrical system before working on the vehi-cle’s electrical system.
  If the vehicle has a consumer battery, its negative terminal should also be disconnected.

• The minimum cable cross sections are shown in the following diagrams:

  • ECL-76:
  • ECL-102:
  • ECL-103:

NOTICE!

• Make sure that you route the on/off cable away from live power cables.
• When installing, observe the information in the installation and operating manual for the components supplied and your Dometic air conditioner.

Observe the following instructions when selecting the location for installing the components:

• • Make sure the cables are of the correct length.
  • Choose a well-ventilated installation location near the supply battery.

Preparing the installation

• Disconnect the following voltage supplies in the vehicle:
  • negative battery terminal
  • external voltage supply

Installing components

• Install the charging current distributor.
  Attach the charging current distributor and the corresponding relay so that they are installed firmly, are dry and well ventilated, ideally in the direct vicinity of the inverter.

• Install the inverter.

• Install the remote control.

DANGER! Electric shock!
Only connect the battery once you have the completed all the installa-tion work and you are certain it has been done properly.

Connecting air conditioning unit FJ1100, FJ1700, FJ2200, FJ2700, FJ3200

• Remove the air outlet unit of the air conditioner; if necessary remove the top cover (FreshJet).
• Connect the on/off cable for the FreshJet to the connection socket on the circuit board.

NOTE
Guide the on/off cable carefully past the fan.
PP12
Circuit diagram:

• Route the on/off cable from the air conditioning unit to the charging current distributor.
• Connect the on/off cable to connections I4 and I2 on the charging current distributor.
• Connect the inverter adapter (Inverter Adapter).
• Attach the air outlet unit of the air conditioner (FreshJet) .
• Route the connecting cable for remote control MCR9 to the inverter and connect it (inverter).

DSP-T12/24
Circuit diagram:

• DC-Kit DSP-T12:
• DC-Kit DSP-T24:
• Connect the adapter cable to the on/off cable.
• Connect the extension cable to the adapter cable.
• Connect the extension cable to connections I2 and I5 on the charging current distributor .
• Attach the air outlet unit of the air conditioner .
• Route the connecting cable for remote control DSP-RCT to the inverter and con-nect it (inverter).

Connecting air conditioning unit FL1600, FL2200

• Remove the air outlet unit of the air conditioner; if necessary remove the top cover (FL1600, FL2200).

• Connect the on/off cable for the FreshLight to the connection socket on the circuit board. NOTE
  Guide the on/off cable carefully past the fan.

• Connect the adapter cable to the on/off cable.

• Connect the extension cable to the adapter cable.

• Connect the extension cable to connections I2 and I5 on the charging current distributor.

• Attach the air outlet unit of the air conditioner (FreshLight) .

• Route the connecting cable for remote control DSP-RCT to the inverter and connect it (inverter).

Connecting air conditioning unit FW3000

• Connect the on/off cable for FW3000 to the connection socket on the connector panel.
  NOTE
  Guide the on/off cable carefully past the fan.

• Connect the adapter cable to the on/off cable.

• Connect the extension cable to the adapter cable.

• Connect the extension cable to connections I2 and I5 on the charging current distributor.

• Route the connecting cable for remote control DSP-RCT to the inverter and connect it (inverter).

Connecting the DC kit to the power supply

Circuit diagram:

• DC-Kit PP12 :
• DC-Kit DSP-T12:
• DC-Kit DSP-T24:

1. Check that all the connections have been made in accordance with the instructions.

2. Check that the air conditioning unit is properly sealed.

3. Connect the charging current distributor:

   • Connect the positive terminal of the starter battery to relay connection Batt. 1.

   • Connect the positive terminal of the consumer battery to relay connection Batt. 2.

   • Insert an electrical fuse (see corresponding circuit diagram for the value) in direct proximity to the starter battery and an electrical fuse in direct proximity to the supply battery into the positive cable.
     NOTE

   • The fuse in the positive cable from the charging current distributor to the battery can only be omitted if the lead is very short and will not come into contact with metal.

   • To connect the inverter included in the scope of delivery of the DC kit, please refer to the instruction manual for the device.

4. Connect the AC connection of the air conditioning unit to the plug of the inverter (inverter).

5. Connect the positive battery cables to the batteries.

6. Check the following are working properly:

   • Check the on and off values for the charging voltage regulator
   • Check the functioning of the priority circuit
   • Switch on the air conditioning in driving mode (air conditioning unit)
   • Switch on the air conditioning in mains supply mode (air conditioning unit)

Adjusting the charging current distributor (only DC-Kit PP12/DC-Kit DSP-T24)
NOTICE!
The following work must be carried out with caution and only by persons with the necessary skills and knowledge. This is because incorrect adjustment of the switch-on and switch-off voltages can cause the air conditioner to malfunction and may cause the vehicle’s electrical system to fail.
NOTE
The voltage scale shown on the charging current distributors is a guide. If different values are set, these must be checked using a suitable voltage measurement device. An externally adjustable laboratory power supply can be connected to terminals GND and D+ for this purpose.

• Insert a screwdriver into the axis of the potentiometer. Turning the axis clockwise increases the voltage threshold value, turning it counter-clockwise reduces the voltage threshold value.

NOTE
We recommend against setting a switch-off voltage below 11.5 V.

Using the DC kit

This chapter contains information on operating the overall system. This operating manual does not replace any information contained in the installation and operating instructions for the individual components.
NOTE
Only DC-Kit 12PP: The operating noises made by the air conditioning unit are louder during mobile air conditioning than during stationary air conditioning. The noises are caused by using the inverter.

Switching on the system

Observe the following instructions before you switch on the system:

• Air the vehicle.
• Make sure that the ventilation slots on the air nozzles and the fan of the compo-nents are not covered up.
• Make sure that none of the housings and cables are not damaged and that all the insulation is intact.
• Compare the existing supply voltage against the technical data.
• Do not insert any fingers or objects into component openings.

Stationary mode: AC mains supply mode The system is supplied from the AC mains.
Driving mode: power supply from the battery

• Switch on the inverter using the remote control.
• Use the air conditioning unit as described in the operating manual.

Switching the system off

• First of all, switch off the air conditioning unit.
• If there are no more consumer units that need power, switch off the inverter using the remote control.

Maintaining and cleaning the DC kit

NOTICE!
Do not use sharp or hard objects or cleaning agents for cleaning as these may damage the product.
NOTE
Observe the maintenance and cleaning instructions in the operating manuals of the individual components.

• Clean the charging current distributor with a damp cloth from time to time.
• Check the power supply lines for abrasion or defects regularly.
• Have the system checked regularly by a specialist company.
• If you find any faulty fuses, have the system checked by a specialist company.

Troubleshooting

NOTE
Observe the instructions on rectifying faults in the operating manuals of the individual components.

Warranty

The statutory warranty period applies. If the product is defective, please contact your retailer or the manufacturer’s branch in your country (see dometic.com/dealer).
For repair and warranty processing, please include the following documents when you send in the product:

• A copy of the receipt with purchasing date
• A reason for the claim or description of the fault

Note that self-repair or non-professional repair can have safety consequences and might void the warranty.

Disposal

Recycling products with non-replaceable batteries, rechargeable batteries or light sources

• If the product contains any non-replaceable batteries, rechargeable batteries or light sources, you don’t have to remove them before disposal.
• If you wish to finally dispose of the product, ask your local recycling center or specialist dealer for details about how to do this in accordance with the applicable disposal regulations.
• The product can be disposed free of charge.

Recycling packaging material

• Place the packaging material in the appropriate recycling waste bins wherever possible.

Technical data

| ECL- 76| ECL- 102| ECL- 103
---|---|---|---
Rated battery voltage:| 12 Vg| 24 Vg
Switch-off voltage Ua: Factory setting:| 10.5 V – 12.5 V
12.2 V| 23.4 V –
Switch-on voltage Ue: Factory setting:| 12 V – 14.4 V
13.3 V| 26.6 V –
Switching current via Batt. 1/Batt. 2:| 75 A| 100 A| 100 A
Ignition off (D+ = 0 V):| 0 mA

NOTE
You can find the technical data for the other components in the corresponding installation and operating manuals.

References

• Outdoor Adventure Starts Here | This Way Out | Dometic USA
• Find a Dealer | Dometic USA

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