Interior heating and ventilation | Section 1. Design of the Lada Priora VAZ 2170 car

The car is equipped with a heating and ventilation system, which serves to create the most comfortable conditions for the driver and passengers, regardless of weather conditions. The heating and ventilation system includes:

1. heater
2. heater fan.
3. cabin air temperature sensor.
4. air distributor housing.
5. air ducts
6. deflectors.

The air from the heater enters the air distributor housing and then into the air ducts. Through them, air is supplied to the windshield and side window vents, to the central and side deflectors on the instrument panel, as well as to the feet of the driver and passengers.

Elements of the heating system LADA Priora

1 — filter cover; 2 — heating and ventilation system filter; 3 — heater housing; 4 — micromotor-reducer of the heater damper; 5 — heater radiator; 6 — additional heater fan resistor; 7 - heater fan

Heater parts: 1 - screw 1/76691/01; 2 — heater radiator 2110-8101060; 3 — left heater casing 2111-8101025; 4 — heater control damper 2110-8101538; 5 — right heater casing 2111-8101024; 6 — air duct housing 2111-8119124 intermediate; 7 — screw 1/76692/01; 8 — lower air intake housing 2111-8119026; 9 — bracket 2108-8101110; 10 — bracket 2111-8119102 right; 11 — screw 2114-5325388; 12 — air filter 2111-8122020; 13 — upper air intake housing 2111-8119025; 14 — filter cover 2111-8119116; 15 — screw 1/76702/01; 16 — screw 1/76691/01; 17 — additional resistor 2123-8118022; 18 — screw 2123-6302332; 19 — screw 2114-5325388; 20 — air supply pipe 2123-8118096; 21 — electric fan 2111-8118020 of the heater; 22 — bracket 2108-8101110; 23 — gear motor 2110-8127200 for the heater damper; 24 - screw 1/76691/01

Quick heating of the interior

To quickly warm up the air in the cabin, do the following.

1. Install the air flow distribution regulator 1 as shown in the photo.

2. Turn control knob 2 clockwise to the extreme right position until it stops.

3. Turn the handle of the switch for 3 operating modes of the electric heater fan to position “4”.

4. Open the side 2 (see

rice. 1.8

) and central 5 nozzles.

Ensuring a comfortable air temperature in the cabin

If the windows in the cabin are clear, but the temperature in the cabin has not reached the desired temperature, do the following.

1. Set the desired temperature using regulator 2.

2. Set regulator 1 to the vertical position.

3. Select the required intensity of warm air supply into the cabin using the 3-mode switch for the heater fan.

Useful tips

Regularly clear the fresh air intake openings located in front of the windshield of snow and leaves.

Do not allow the exhaust vents located in the side trim of the trunk to become dirty.

Keep your car windows clean: Dirty windows retain more moisture than clean windows, and therefore take longer to defrost.

Heater radiator

Replacement: how to remove (change) the stove on a Priora with and without air conditioning

Replacing a stove completely is rarely done; components are mostly changed. Often the main reason for disassembling the heater on a Priora car is replacing the heater radiator. When it ceases to be airtight and no longer works as efficiently, it is necessary to begin repairs. In order to remove the heater on a Priora car without air conditioning, you will need a set of wrenches (socket and socket wrenches) and a Phillips screwdriver. As the system is disassembled, it is worth inspecting all parts and replacing worn ones. Perform the work according to the instructions:

1. Remove the negative from the battery.
2. Remove the lower windshield seals and engine sound insulation.
3. Loosen the clamps that hold the pipes adjacent to the heater core, and then disconnect them. First place a basin under the pipes to drain the coolant. After the liquid has poured out, cover the pipes with a rag.
4. Start wiring. Unclip the latch and disconnect the motor wires. Then de-energize the additional resistor.
5. The wires that go to the damper drive motor are secured with a clamp. You need to bite it and then disconnect the wire.
6. Next, we proceed to dismantling the heater itself. Take a “ten” socket wrench, remove three screws with it, and remove another screw with an “8” wrench.
7. Next, move the wiring harness from the heater to the side (attached to a small bracket).
8. Now, from the passenger compartment under the dashboard, unscrew the third nuts securing the brake pedal with the “13” key, and then move it to the side.
9. Pull the block towards you.
10. Install a new heater instead of the old one if necessary.
11. When you are concerned that the heating is not blowing correctly - not in the required mode - you will have to check everything again during dismantling.
12. To remove the heater on a car with air conditioning, follow these steps:
13. Also remove the negative terminal, then the lower windshield seal, and the engine sound insulation.
14. Unscrew the screws covering the heater radiator.
15. Also carefully remove the pipes: the coolant must be drained into a prepared basin.
16. Slowly and smoothly pull the radiator up until it comes out of the mounts.
17. Install the new radiator in the reverse order.

Lada Priora has Panasonic or Halla air conditioners. They differ only in the fastening, so there will be no difficulties when replacing the heater radiator.

Heater assembly

1 — micromotor-reducer of the heater damper; 2 — heater control damper; 3 — additional heater fan resistor; 4 — blowing hose for the fan motor; 5 — heater fan; 6 — filter cover of the heating and ventilation system

The heater is installed in the engine compartment under the right windshield trim and is attached to the front panel. A filter is installed at the heater inlet to clean the air entering the heating and ventilation system.

Device principle

Using the Panasonic air conditioner as an example, you can see that it consists of the following components:

1. Compressor - it has three blades, with its help the required pressure is created, it is located under the generator.
2. Condenser - it cools the air.
3. Evaporator – dries the air before it enters the cabin.
4. Receiver – with its help the air is purified.
5. Pipelines.

These are the features of the Lada Priora air conditioner. Having familiarized yourself with this information, eliminating breakdowns that will occur in the future will not be difficult, and the Priora’s heating system will work normally again.

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Replacement steps

This task is not difficult, but painstaking and difficult for absolute beginners. To avoid any difficulties, you must strictly follow the work plan described below.

1. Disconnecting the “−” terminal of the battery and the wire.
2. Dismantling the frill.
3. Disconnecting the block with wires from the connector on the additional rheostat.
4. Removing the fasteners on the resistor using a Phillips screwdriver of the appropriate size.
5. Removing a faulty mechanism on the heater.
6. Installing a working mechanism according to the same scheme, but in reverse order.
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Interior ventilation

To ventilate the interior, set the controls and switch of the ventilation and heating control unit to the following positions.

1. Turn the handle of the supply air temperature regulator 2 clockwise until it stops.

4. Set regulator 3 to the desired air supply speed of the electric heater fan.

5. If the windshield fogs up, install the controls for the heating and ventilation system control unit as shown in the photo.

Helpful Hint: If the car is equipped with air conditioning, set the supply air temperature control to the extreme left position. This method is most effective in summer in rainy weather.

Cleaning windows from snow and ice

To quickly clear snow and ice from the windshield and front door windows, do the following.

1. Turn the regulator handle 1 counterclockwise to the extreme left position, and the regulator handle 2 clockwise to the extreme right position until it stops, as shown in the photo.

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