Chery B11. Manual — part 121

Chery B11 Service Manual

Air Conditioner-7

Section 4 Windshield Location

3.0.9: CHERY AUTO CASE/AIR PIPE SYSTEM

The separate type casing system with a blower

1—Choke 2—Heater core 3—Blower motor 4—Fresh air

5—Fresh/Recirculation air damper 6—Recirculation air 7—Evaporator core

8—Mixed air damper 9—To panel 10—A/C defroster damper 11—To

defroster 12—To the bottom outlet 13—Heater defroster damper

Chery B11 Service Manual

Air Conditioner-8

Section 5 Particulars for Tools and Equipment

Air conditioner maintenance kit

Service valve for draining refrigerant

Refrigerant charging gauge

Refrigerant charging hose

Green

Refrigerant charging hose

Blue

Refrigerant charging hose

Orange yellow

Stop valve

Complete charging hose kit with stop valve

If a stop valve is required, please

order this kit.

Magnetic clutch remover

Magnetic clutch retainer

Clasp forceps

Clasp forceps

Lip sealing protection

Chery B11 Service Manual

Air Conditioner-9

Section 6 Manifold Pressure Gauge Operation Guide

The manifold pressure gauge is a most popular tool

available for the maintenance of A/C unit, shown in the

right figure. The low-pressure gauge is not only used to

indicate the pressure, but to indicate the degree of vacuum

with the reading range of 0 to 5x10

5

Pa (0－760mmHg),

the pressure scale of which starts from 0 and its range is no

less than 4.2X10

5

Pa (approx. 4.2kgf/cm

2

). The pressure

scale of high-pressure gauge starts from 0 and its range is

no less than 21.1X10

5

Pa (approx. 21.1 kgf/cm

2

). These

two pressure gauges are installed on a gauge stand. Both

ends of gauge stand are respectively equipped with one

manual valve, and there are three channel interfaces in the

bottom of the gauge stand.

Manifold Pressure Gauge

1 - Low-pressure gauge (blue).

2 - High-pressure gauge (red).

3 - High-pressure side hose (red).

4 - Hose for maintenance (yellow).

5 - High-pressure side hose (blue).

The interface of low-pressure gauge connects to the low-pressure pipe joint via a hose while the

interface of high-pressure gauge connects to the high-pressure pipe joint via a hose. The middle

interface connects to the vacuum pump or refrigerant tank via a hose. With the help of the

combination action of two manual valves and three hoses, the manifold pressure gauge has four

functions (shown in the table below).

Function of Manifold Pressure Gauge

Location of High- and Low-pressure Valves

Functions

High- and low-pressure valves close simultaneously

Refrigeration system failure diagnosis

Low-pressure valve open, and high-pressure valve

close

Refrigeration system is charged with refrigerant

or refrigerating machine oil

Low-pressure valve close, and high-pressure valve

open

Refrigeration system leakage check and quick

refrigerant charging

High- and low-pressure valves open simultaneously

Refrigeration system vacuum pumping

Note: The high- and low-pressure valves open means that the high- and low-pressure valves

connect to the refrigeration system and intermediate pipe respectively. The high- and low-pressure

valves close means that the high- and low-pressure valves do not connect to the intermediate pipe

but connect to the refrigeration system respectively.

Chery B11 Service Manual

Air Conditioner-10

Section 7 Refrigerant Recycling Equipment Operation Guide

Recycle

the

refrigerant

from

the

refrigeration device

When the refrigerant is removed from the

refrigeration device under the following conditions,

a recycling receiver shall be applied to recycle the

refrigerant.

Before the components on the refrigerant pipe are

replaced.

When moisture or air enters into the refrigerant

pipe.

When excessive refrigerants are charged into the

system.

WARNING:
● When the recycling receiver is required, take

care to operate it according to the requirements

of device manufacturer's instructions.

● After the completion of recycling work,

measure the level of compressor oil recycled

so that the same quantity of oils are added to

the refrigeration device in the future.

Operation guide for refrigerant recycling receiver

1.

Install the manifold pressure gauge kit on the service valve.

2.

Recycle the refrigerant from the refrigeration device.

(a) Connect the intermediate hose to the recycling receiver.

(b) Operate the recycling receiver.

(c) Open the manual high- and low-pressure valves on the refrigeration pressure gauge kit.

1.

After the completion of recycling work, turn off the recycling receiver.

2.

Remove the manifold pressure gauge kit from the service valve.

LOW-PRESSURE

SEVICE VALVE

RECYCLING

RECEIVER

HIGH-PRESSURE

SEVICE VALVE

REFRIGERATION DEVICE

OIL BOTTLE

DRAINED
OIL
QUANTITY