ENGLISH
15
YORK INSTALLATION & OWNER’S MANUAL (
EN
) 035M80090-000
CONDENSATE DRAINAGE
INSTALLATION
The units are fitted with an internal condensate drainage pump the unit. Drainage piping connected to the unit must
be installed with a downwards slope without any rises.
Verification of condensate water drainage:
Fill the drain pan and observe evacuation.
Indoor unit
Pipe clamp
GOOD
BAD
Main drain
pipe
Flexible
drain hose
Feed water
NOTE
THIS INDOOR UNIT USES A DRAIN PUMP FOR CONDENSED WATER DRAINAGE. INSTALL THE
UNIT HORIZONTALLY TO PREVENT WATER LEAKAGE OR CONDENSATION AROUND THE AIR
OUTLET
CAUTION (MULTIPLE CASSETTE UNIT INSTALLATIONS)
When a common drainage line is required, the connection point of each unit to the line must be higher than the line
itself. The diameter of a common drainage line must be sufficient to accommodate the condensate flow from the
units connected to it.
Drain piping work
• Drain pipe must be in downward gradient for smooth
drainage.
• Avoid installing the drain pipe in up and down slope
to prevent reversed water flow.
• During the drain pipe connection, be careful not to
exert extra force on the drain connector at indoor unit.
• Be sure to execute heat insulation (polyethylene foam
with thickness more than 8.0 mm.) on the drain piping
to avoid the condensed water dripping inside the room.
Drain test
• Connect the main drain pipe to the flexible drain hose.
• Feed water from flexible drain hose to check the piping
for leakage.
• When the test is completed, connect the flexible drain
hose to the drain connector on the indoor unit.