Refrigerant Adjustment; Flare Nut Fixing Torque - Samsung MH020FPEA Service Manual

14-4 Refrigerant Adjustment

I MH040FXEA2/MH052FXEA2/MH14✳✳2X/MH16✳✳2X/MH18✳✳2X/MH19✳✳2X
Class
Connection Air-Purge
Method
Pipe Length
Standard Refer to the
< TOTAL ≤ 20m
detailed Connecting up
and purging the circuit.
Max. (14-3 page)
< TOTAL = 40m
I MH068FXEA4/MH080FXEA4/MH30✳✳2X
Class
Air-Purge
Connection
Pipe Length Method
Refer to the
Standard
< TOTAL ≤ 40m
detailed Connecting up
and purging the circuit.
Max. (14-3 page)
< TOTAL = 70m
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.
G 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 refriger-
ant.
G Installation position difference between the indoor unit and the outdoor unit should not exceed over than 15 meters.
G 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.

14-5 Flare Nut Fixing Torque

Outer diameter
ø 6.35 mm
(Liquid Side)
ø 9.52 mm
(Gas Side)
ø 12.7 mm
(Gas Side)
Samsung Electronics
At installation
Refrigerant
Adjustment
Unnecessary
Add "15g" of refrigerant
(R410A) for every 1m.
At installation
Refrigerant
Adjustment
Unnecessary
Add "15g" of refrigerant
(R410A) for every 1m.
Fixing Torque
160
300
500
At service
Refrigerant
Air-Purge
Method Quantity
Purge air using a refer to
specification sheet
vacuum pump
or an additional
Add "15g" of refrigerant
refrigerant cylinder.
(R410A) for every 1m.
At service
Air-Purge Refrigerant
Method Quantity
Purge air using a refer to
vacuum pump specification sheet
or an additional
Add "15g" of refrigerant
refrigerant cylinder.
(R410A) for every 1m.
Torque (kg . cm) Torque(kg . cm)
Final Torque
200
350
550
14-7