Refrigerant Piping Connection; Notes On Pipe Length And Elevation - Bosch Climate 5000 SCI Series Installation Manual

Middle static pressure duct type air conditioner

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Owner's manual (16 pages)

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Table Of Contents

Table of Contents

Units with a pump

1. Remove the test cover.

Fill the water pan with 2 litres of water.

Test cap

Fig. 32.

Fig. 33.

2. Turn on the unit in COOLING mode. You will hear the drain pump.

Check whether the water is discharged properly (a 1-minute lag

is possible, depending on the length of the drain pipe). Check

whether water leaks from the joints.

3. Turn off the air conditioner and put the cap back on.

Climate 5000 SCI – 6720887422 (2019/07)

Safety Precautions

• All field piping must be completed by a licensed technician and must

comply with the local and national regulations.

• When the air conditioner is installed in a small room, measures

must be taken to prevent the refrigerant concentration in the room

from exceeding the safety limit in the event of refrigerant leakage. If

the refrigerant leaks and its concentration exceeds its proper limit,

hazards due to lack of oxygen may result.

• When installing the refrigeration system, ensure that air, dust,

moisture or foreign substances do not enter the refrigerant circuit.

Contamination in the system may cause poor operating capacity,

high pressure in the refrigeration cycle, explosion or injury.

• Ventilate the area immediately if there is refrigerant leakage during

the installation. Leaked refrigerant gas is both toxic and flammable.

Ensure there is no refrigerant leakage after completing the installa-

tion work.

7.1

Ensure that the length of the refrigerant pipe, the number of bends,

and the drop height between the indoor and outdoor units meets the

requirements shown in Table 8:

Type of model

Split Inverter

Table 8. The Maximum Length and Drop Height Based on Models

Refrigerant Piping with Twin Indoor Units

When installing multiple indoor units with a single outdoor unit, ensure

that the length of the refrigerant pipe and the drop height between

the indoor and outdoor units meet the requirements illustrated in the

following diagram:

Stow tube

The drop height

between indoor unit

and outdoor unit

must be less than or

Fig. 34.

• Oil traps

If the outdoor unit is installed higher than the indoor unit:

-It is recommended that vertical suction risers not be upsized.

Proper oil return to the compressor should be maintained with

suction gas velocity. If velocities drop below 7.62 m/s, oil return will

be decreased. An oil trap should be installed every 6 m of vertical

suction line riser. (See Fig. 35)