Toyota CH-R Service Manual: Precaution

Toyota CH-R Service Manual / Heating / Air Conditioning / Refrigerant(for Hfo-1234yf(r1234yf)) / Precaution

PRECAUTION

PRECAUTIONS FOR REFRIGERANT HFO-1234yf (R1234yf)

(a) HFO-1234yf (R1234yf) Refrigerant

(1) Always use HFO-1234yf (R1234yf) as the refrigerant.

NOTICE:

  • Do not charge the system with refrigerant near open flames, as HFO-1234yf (R1234yf) is combustible.
  • When charging the system with refrigerant, make sure that the area is well ventilated (especially be careful in areas where the gas can easily accumulate such as under lifts and in garage pits, as the gas is heavier than air).
  • Follow any local regulations regarding combustible gases.
  • Be sure to use a refrigerant recovery unit that is compatible with HFO-1234yf (R1234yf) systems.

HINT:

The shape of the service port for refrigerant charging has an exclusive design conforming to international standards for HFO-1234yf (R1234yf) to prevent improper refrigerant charging.

(b) Compressor Oil

(1) Always use VC100YF as the compressor oil.

(2) When parts of the air conditioning system are removed, quickly block off any areas that are exposed to the outside air with plugs, vinyl tape, etc., as the oil used for HFO-1234yf (R1234yf) systems absorbs moisture easily.

(3) Do not allow the compressor oil to spray, as the oil used for HFO-1234yf (R1234yf) systems has harmful effects on acrylic resins.

(c) Evacuation

(1) When evacuating the system, be sure to use a refrigerant recovery unit, refrigerant recycler and refrigerant charger that are compatible with HFO-1234yf (R1234yf) systems.

(d) Refrigerant Gas Leak Inspection

(1) Use a gas leak detector to check for refrigerant gas leaks.

HINT:

Be sure to use a gas leak detector that is compatible with HFO-1234yf (R1234yf) systems.

(2) Turn the ignition switch off when checking for refrigerant leaks.

HINT:

  • If the engine is running when checking for leaks, the leaking gas will be diluted by the air from the fan and blower and detection will be more difficult.
  • If the air conditioning system is operating when checking for leaks, the refrigerant pressure in the system will decrease, making it harder for gas to leak.
  • If the air conditioning system is operating when checking for leaks, an electronic gas leak detector may react to a sudden change in humidity due to the humid air from the drain hose and a faulty judgment will be made.

PRECAUTIONS RELATED TO REMOVAL AND INSTALLATION OF PARTS

(a) In case refrigerant gets in your eyes

(1) Do not rub your eyes with your hands or a cloth.

(2) Consult an eye doctor.

(b) Handling of Refrigerant (Container)

(1) Do not heat the container. If the container is directly heated or put into boiling water, the pressure inside the container will become abnormally high and the container may burst.

(2) Do not drop or strike the container.

(3) Do not bring the container anywhere near your face. Always wear eye protection.

(c) Pipe Installation

(1) Always use new O-rings.

HINT:

When removing an O-ring, use an object with a soft tip so as not to damage the piping.

(2) Apply a sufficient amount of compressor oil to the O-ring.

(3) Route the hoses in the way they are naturally shaped. Do not twist or forcibly bend the hoses.

(4) Do not use cloth gloves, etc. as fibers attached to O-rings can lead to refrigerant gas leaks.

    Refrigerant(for Hfo-1234yf(r1234yf))
    ...

    On-vehicle Inspection
    ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET HINT: The following examples show the readings of a manifold gauge set and the corresponding air condition ...

    Other materials:

    Toyota CH-R Service Manual > Rear Wiper Motor: Installation
    INSTALLATION PROCEDURE 1. INSTALL REAR WIPER MOTOR ASSEMBLY (a) Install the rear wiper motor assembly with the 3 bolts. Torque: 5.5 N·m {56 kgf·cm, 49 in·lbf} (b) Connect the connector. 2. INSTALL REAR WIPER MOTOR GROMMET (a) Apply MP grease to the entire surface of the rear w ...

    Toyota CH-R Service Manual > Stop Light Switch: Components
    COMPONENTS ILLUSTRATION *1 COWL SIDE TRIM BOARD LH *2 FRONT DOOR SCUFF PLATE LH *3 NO. 1 AIR DUCT *4 NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY *5 STOP LIGHT SWITCH ASSE ...

    Toyota C-HR (AX20) 2023-2025 Owner's Manual

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2025 Copyright www.tochr.net
    0.0139