Haier AS24TECHRA Инструкция по монтажу онлайн [10/28] 614647

Inspection on Maintenance Environment

• Before operation, the refrigerant leaked in the room is not allowed.

• The area of the room in which maintenance is made shall be in line with the nameplate.

• Continuous ventilation shall be maintained during maintenance.

• Open fire or high-temperature heat source higher than 548 degree which can easily give birth to open fire is

not allowed inside the room within the maintenance area.

• During maintenance, the phones and the radioactive electronics of all the operators inside the room must be

powered off.

• One dry powder or carbon dioxide extinguisher shall be equipped inside the maintenance area, and the

certain safety distance must be guaranteed between the two zones.

• Ventilators shall be installed at the maintenance site, and exhaust fans, fans, ceiling fans, floor fans and

dedicated exhaust duct can be arranged, to meet the requirements of ventilation volume and uniform exhaust, and

to avoid accumulation of refrigerant gas.

• Leak detection equipment for flammable refrigerant shall be equipped, with relevant management system

being established. Whether the leak detection equipment is under available state shall be confirmed before

maintena

nce.

• Sufficient dedicated vacuum pumps of flammable refrigerant and refrigerant charging equipment shall be

equipped, with relevant management system for maintenance equipment being established. It shall be guaranteed

valve shall be installed for the acetylene cylinders. The color of the acetylene cylinders and oxygen cylinders

installed shall meet the international

requirements.

• The warning sign of “No Fire” shall be arranged inside the maintenance area.

• Fire control device suitable for electric appliance such as the dry powder extinguisher or carbon dioxide

extinguisher shall be equipped, and shall always be under the available state.

• The ventilator and other electrical equipment at the maintenance site shall be relatively fixed, with

standardized pipe routing. Temporary wires and sockets at the maintenance site are not allowed.

Leak Detection Methods

• The environment in which the refrigerant leakage is checked shall be free from potential ignition source.

percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed, and the appropriate

percentage of gas (25 % maximum) is confirmed.

• The fluid used for leak detection shall be applicable to most of the refrigerant. The use of chlorine-

co

copper pipelines.

• In case leakage is suspected, the open fire at the site shall be evacuated or be put out.

• In case welding is required at the leakage position, all the refrigerants shall be recovered, or be isolated at a

position far from the leak point with a stop valve. Before and during welding, the whole system shall be purified

with OFN.