Pump-Out Procedure - Samsung MXJ-YA1509 Series Installation Manual

5. 5.
Outdoor Units installation Outdoor Units installation

12. Pump-Out Procedure

12. Pump-Out Procedure
1) General Instructions 1) General Instructions
(1) Pump-out is the name of operation which pumps out the refrigerant from outdoor unit. (1) Pump-out is the name of operation which pumps out the refr
(2) Pump out operation can be put into operation with more than 2 outdoor units installed. (2) Pump out operation can be put into operation with
(3) If system is under extremely low pressure, compressor will be damaged. When low pressure go (3) If system is under extremely low pressure, compressor will be damaged. When low pressure go
down 2kgf/ down 2kgf/ ㎠ ㎠ or below,
2) Procedure of Pump down operation 2) Procedure of Pump down operation
outdoor unit to carry out pump outdoor unit to carry out pump
Press "K1" button for assigning Press "K1" button for assigning
Push "K4" button 4 times for Push "K4" button 4 times for
Close Gas SVC Valve of Close Gas SVC Valve of
Press "K2" button 2 times Press "K2" button 2 times
for the end of pump out operation for the end of pump out operation
or below, close the service valve qu close the service valve quickly.
r r o o u u p p n n s s a a a a o o n n
Close Liquid SVC Close Liquid SVC Valve of Valve of
out operation out operation
the outdoor unit *1) the outdoor unit *1)
Comp. On Comp. On
checking low pressure checking low pressure
If low pressure ≤ ≤ If low pressure
㎠ ㎠
2kgf/ 2kgf/
operating outdoor unit operating outdoor unit
or "K3" button 1 time or "K3" button 1 time
133 133
igerant from outdoor unit.
more than 2 outdoor units installed.
ickly.
*1) Press 1 time *1) Press 1 time   Main Outdoor unit Main Outdoor unit
2 times 2 times   Sub 1 Outdoor unit Sub 1 Outdoor unit
3 times 3 times   Sub 2 Outdoor unit Sub 2 Outdoor unit
4 times 4 times   Sub 3 Outdoor unit Sub 3 Outdoor unit