Samsung MH052FDEA, Training Manual

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Operation Instruction & Installation
41 Samsung Electronics
3-7-6 Refrigerant Adjustment
It would be the best choice to use the standard tube length to keep the basic quality of Room Air conditioner, for example cooling and
heating capacity, sound level, vibration level, and reliability.
But, according to a certain different installation condition, the connection tube length could be changed in the recommendation length
that is shown above.
In this case, installer should keep the installation condition to keep the quality of Room Air conditioner.
●
Refrigerant should be charged additionally as written above according to the change of the length of the connection tube.
It needs to affect the decrease in cooling and heating capacity or of the reliability of compressor that may be caused by a lack of refrigerant.
●
Installation position difference between the indoor unit and the outdoor unit should not exceed over than “B” meters.
●
When the connection pipe is been extended longer than 5 meters, it might need to change the diameter of the electrical wire to a larger size
in order to keep a voltage drop for starting room air conditioner is not less than 85% of the rated voltage. And then, a voltage meter will be
useful to check the rate of the voltage drop.
3-7-7 Flare Nut Fixing Torque
Class At installation At service
Connection
Pipe Length
Standard
< TOTAL
≤
40m
Max.
< TOTAL = 70m
Air-Purge
Method
Refer to the
detailed Air-Purge
Procedure
Refrigerant
Adjustment
Unnecessary
Add "15g" of refrigerant
(R410A) for every 1m.
Air-Purge
Method
Purge air using a
vacuum pump
or an additional
refrigerant cylinder.
Refrigerant
Quantity
refer to
specification sheet
Add "15g" of refrigerant
(R410A) for every 1m.
ø 6.35 mm
(Liquid Side)
ø 9.52 mm
(Gas Side)
ø 12.7 mm
(Gas Side)
160
300
500
200
350
550
Outer diameter
Torque (kg-cm)
Fixing Torque Final Torque
DB98_20402A(1)_1 10/26/04 2:48 PM Page 41