133
133
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 refr
(1) Pump-out is the name of operation which pumps out the refrigerant from outdoor unit.
igerant from outdoor unit.
(2) Pump out operation can be put into operation with
(2) Pump out operation can be put into operation with more than 2 outdoor units installed.
more than 2 outdoor units installed.
(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,
or below, close the service valve qu
close the service valve quickly.
ickly.
2) Procedure of Pump down operation
2) Procedure of Pump down operation
Close Liquid SVC
Close Liquid SVC Valve of
Valve of
outdoor unit to carry out pump
outdoor unit to carry out pump
out operation
out operation
rro
ou
up
p n
ns
s a
a a
a o
on
n
Press “K1” button for assigning
Press “K1” button for assigning
the outdoor unit *1)
the outdoor unit *1)
Push “K4” button 4 times for
Push “K4” button 4 times for
checking low pressure
checking low pressure
*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
If low pressure
If low pressure
≤
≤
2kgf/
2kgf/
㎠
㎠
Comp. On
Comp. On
Close Gas SVC Valve of
Close Gas SVC Valve of
operating outdoor unit
operating outdoor unit
Press “K2” button 2 times
Press “K2” button 2 times
or “K3” button 1 time
or “K3” button 1 time
for the end of pump out operation
for the end of pump out operation
Summary of Contents for MXJ-YA1509 Series
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