Bedienungsanleitung Inventor V5MFI32-60 (Seite 37 von 136) (Englisch)

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 Page 36 

Note On Adding Refrigerant

CAUTION

• Refrigerant charging must be performed after wiring, vacuuming, and the leak testing.

• DO NOT exceed the maximum allowable quantity of refrigerant or overcharge the system.

Doing so can damage the unit or impact it’s functioning.

• Charging with unsuitable substances may cause explosions or accidents. Ensure that the

appropriate refrigerant is used.

• Refrigerant containers must be opened slowly. Always use protective gear when charging the

system.

• For the R290 or R32 refrigerant model, make sure the condtions within the area have been

made safe by control of ammable material when the refrigerant added into air conditioner.

• DO NOT mix refrigerants types.

Some systems require additional charging depending on pipe lengths. The standard pipe length

varies according to local regulations. For example, in North America, the standard pipe length is

7.5m (25’) In other areas, the standard pipe length is 5m (16‘). The additional refrigerant to be

charged can be calculated using the following formula:

Liquid Side Diameter

R32 : (Total pipe length -

standard pipe length)x

12g(0.13oZ)/m(ft)

(Total pipe length -

standard pipe length)x

24g(0.26oZ)/m(ft)

(Total pipe length -

standard pipe length)x

40g(0.42oZ)/m(ft)

φ6.35(1/4”) φ9.52(3/8”) φ12.7(1/2”)

R22

(oriﬁce tube in the indoor unit):

(Total pipe length -

standard pipe length)x

30g (0.32oZ)/m(ft)

(Total pipe length -

standard pipe length)x

65g(0.69oZ)/m(ft)

(Total pipe length -

standard pipe length)x

115g(1.23oZ)/m(ft)

R22

(oriﬁce tube in the outdoor unit):

(Total pipe length -

standard pipe length)

x15g(0.16oZ)/m(ft)

(Total pipe length -

standard pipe length)

x30(0.32oZ)/m(ft)

(Total pipe length -

standard pipe length)

x60g(0.64oZ)/m(ft)

(Total pipe length -

standard pipe length)

x65g(0.69oZ)/m(ft)

R410A:

(oriﬁce tube in the indoor unit):

(Total pipe length -

standard pipe length)

x30g(0.32oZ)/m(ft)

(Total pipe length -

standard pipe length)

x65g(0.69oZ)/m(ft)

(Total pipe length -

standard pipe length)

x115g(1.23oZ)/m(ft)

R410A:

(oriﬁce tube in the outdoor unit):

(Total pipe length -

standard pipe length)

x15g(0.16oZ)/m(ft)

(Total pipe length -

standard pipe length)

x30g(0.32oZ)/m(ft)

 Page 37

Before Test Run

A test run must be performed after the entire

system has been completely installed. Conrm

the following points before performing the test:

a) The indoor and outdoor units are properly

installed.

Piping and wiring are properly connected.

Ensure that there are no obstacles near the

inlet and outlet of the unit that might cause

poor performance or product malfunction.

The refrigeration system does not leak.

e) The drainage system is unimpeded and

draining to a safe location.

f) The heating insulation is properly installed.

The grounding wires are properly connected.

The length of the piping and the added

refrigerant stow capacity have been

recorded.

The power voltage is the correct voltage

for the air conditioner.

Failure to perform the test run may result in

unit damage, property damage or personal injury.

Test Run Instructions

Open both the liquid and gas stop valves.

Turn on the main power switch and allow the

unit to warm up.

Set the air conditioner to COOL mode.

For the Indoor Unit

a. Ensure the remote control and its buttons

work properly.

Ensure the louvers move properly and can

be changed using the remote control.

Double check to see if the room

temperature is being registered correctly.

Ensure the indicators on the remote

control and the display panel on the indoor

unit work properly.

Ensure the manual buttons on the indoor

unit works properly.

f. Check to see that the drainage system is

unimpeded and draining smoothly.

g. Ensure there is no vibration or abnormal

noise during operation.

For the Outdoor Unit

Check to see if the refrigeration system is

leaking.

Make sure there is no vibration or

abnormal noise during operation.

Ensure the wind, noise, and water

generated by the unit do not disturb your

neighbors or pose a safety hazard.

6. Drainage Test

Ensure the drainpipe ows smoothly. New

buildings should perform this test before

nishing the ceiling.

Remove the test cover. Add 2,000ml of

water to the tank through the attached

tube.

Turn on the main power switch and run

the air conditioner in COOL mode.

Listen to the sound of the drain pump to

see if it makes any unusual noises.

Check to see that the water is discharged.

It may take up to one minute before the

unit begins to drain depending on the

drainpipe.

f. Make sure that there are no leaks in any of

the piping.

Stop the air conditioner. Turn off the main

power switch and reinstall the test cover.

NOTE: If the unit malfunctions or does not

operate according to your expectations,

please refer to the Troubleshooting section

of the Owner’s Manual before calling

customer service.

Test Run 14

CAUTION

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