Samsung ACH1800E, Service Manual

Page: 48 / 150

Samsung Electronics
Installation
4-29
Testing the drainage
You should test the drainage after completing the
installation.
Prepare a little water about 2.0 liter.
1. Remove two screws on the cover drain pump
and pull out the cover.
2. Pour water into the indoor unit as shown in
figure.
NOTE
: ◆
If you do not pour water inside the water
supply intake, water may spill from the indoor
unit.
3. Confirm that the water flows out through the
drain hose.
NOTE
: ◆
You can check the drainage only when the air
conditioner is turned on.
4. Reassemble the cover drain pump and the
screws.
4-5-7 Connecting the Indoor Unit Assembly
Piping
There are two refrigerant pipes of differing diameters:
• A smaller one(9.52mm, 3/8") for the liquid refrigerant
• A larger one(15.88mm, 5/8") for the gas refrigerant
• The thickness of tube should not less than 1.0mm.
• The inside of copper tube must be clean & has no
dust.
The connection procedure for the refrigerant pipes
varies according to the exit position of the pipes from
the indoor unit, as seen when facing the indoor in the
"A" side.
• Liquid refrigerant port
• Gas refrigerant port
1. Remove the protection caps
on the pipes and connect
the assembly pipes to each
pipe, tightening the nuts,
first manually and then
with a wrench, a spanner
applying the following
torque.
Outer Diameter Torque (kgf
•
cm)
1 9.52 mm (3/8") 300
15.88 mm (5/8") 750
Cover drain pump
Liquid refrigerant port
Gas refrigerant
port
A
00152-OIAIN-5 2/1/01 1:56 PM Page 4-29