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English
Main Drain Pipe
Feed Water
Flexible Drain Hose
5. Drain Test
• Connect the main drain pipe to the flexible drain.
• Feed water from flexible drain hose to check the piping for leak-
age.
• When the test is completed, connect the flexible drain hose to the
drain connector on the indoor unit.
Note:
This Indoor Unit uses a drain pump for condensed water
drainage. Install the unit horizontally to prevent water leak-
age or condensation around the air outlet.
• Drain pipe must be in downward gradient for smooth drain-
age.
• Avoid installing the drain pipe in up and down slope to pre-
vent reversed water flow.
• During the drain pipe connection, be careful not to exert extra
force on the drain connector at indoor unit.
• The outside diameter of the drain connection at the flexible
drain hose is 20mm.
• Be sure to execute heat insulation (polyethylene foam with
thickness more than 8.0mm) on the drain piping to avoid the
condensed water dripping inside the room.
4. Drain Pump Work
Indoor Unit
Pipe Clamp
Good
Bad
6.
Water Piping Connection
• The indoor unit is equipped with water outlet and inlet connection. There is an air-vent that is fitted along with the connection
for air purging.
• 3 ways valve is required for cycling off or bypass the chilled water.
• Black steel pipe, polyethrene pipe and copper tube are recommended in the field installation. All types of piping and connec-
tion must be insulated with polyethrene (ARMAFLEX type or equivalent) to avoid condensation.
• Do not used contaminated or damaged pipe and fitting for installation.
• Some main fitting components are needed in the system to enhance the capacity and ease the service, such as gate valve,
balancing valve, 2 ways or 3 ways valve, filter, strainer and etc.
7. Panel Installation
• Be sure to remove the installation template before installing the
front panel.
• Open the air intake grille by pulling back the catchers and re-
moving it together with filter from panel.
• Install the front frame panel onto the indoor unit by 4 screws and
tighten it completely to prevent cool air leakage.
• Connect the LED wire and air swing wire to the indoor unit.
Note:
Install the front panel firmly to prevent cool air leakage which
will cause condensation and water dripping.
OPEN
Screw
From
Front
Panel
LED Wire
Air Swing Wire
From
Control
Box
Gate Valve
Gate Valve
Gate Valve
Gate Valve
Gate Valve
Gate Valve
FCU
FCU
FCU
3 Way Valve
2 Way Valve
Good Control
Bad Control
Worst Control
Chiller
