24
Installation Procedure
Installation Procedure
3 If you have any difficulty charging the refrigerant as
described in the steps above, take the following steps:
a Open the liquid stop valve and gas stop valve.
b Operate the air conditioner by pressing the K2
button on the outdoor unit PCB.
c After about 30 minutes, charge the refrigerant
through the service port of the gas stop valve.
Gas side stop valve(service port)
Indoor Unit
Outdoor Unit
Ref
Liquid side stop valve(service port)
Balance
Vacuum
pump
Calculating the quantity of refrigerant to add
The quantity of additional refrigerant is variable according
to the installation situation. Thus, make sure the outdoor
unit situation before adding refrigerant. This operation
can only be performed by a qualified refrigeration
specialist.
Model
Inter-connection
pipe length [ft(m)]
0~24.6(0 ~ 7.5) 24.6~164.0(7.5 ~ 50)
AC018BXADCH 0
+0.108 oz/ft over 24.6ft
(+10g/m over 7.5 m)
AC024BXADCH
AC030BXADCH
0
0.323 oz/ft over 24.6ft
(+30g/m over 7.5 m)
Model
Inter-connection
pipe length [ft(m)]
0~24.6(0~7.5) 24.6~246.1(7.5~75)
AC036BXADCH
AC042BXADCH
AC042BXADCH
0
0.323 oz/ft over 24.6ft
(+30g/m over 7.5 m)
Charging the system with liquid refrigerant
R-410A is a mixed type of refrigerant. It is necessary for
recharging under conditions of liquid. When recharging
refrigerant from the refrigerant cylinder to the
equipment, follow the instructions below.
• Before recharging, check whether the cylinder has
a siphon or not. There are two ways to recharge the
refrigerant.
Cylinder with siphon Cylinder without siphon
siphon
Charge the refrigerant standing
the cylinder upright.
Charge the refrigerant turning
the cylinder upside down.
NOTE
• If R-410A refrigerant is charged with gas, the
composition of the charged refrigerant changes and
the characteristics of the equipment vary.
• While adding refrigerant use an electronic scale to
measure the volume added. If the refrigerant cylinder
doesn’t have a siphon, turn it upside-down.
• The designs and shape are subject to change
according to the model.
DB68-11274A-00_IM_CAC Universal Outdoor_AA_EN.indd 24DB68-11274A-00_IM_CAC Universal Outdoor_AA_EN.indd 24 2021-09-14 오전 9:22:002021-09-14 오전 9:22:00
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