York HIC4008B21S Installation And Maintenance Manual page 24

● Moisture which has discharged into the condensate pan and check for drainage in the heating season
should be drained completely from the condensate pan.
● The heat exchanger is heated since a slight amount of refrigerant circulates inside the indoor unit during
periods of stoppage. As a result, moisture in the condensate pan evaporates, causing condensation
issues.
● After the condensate check is completed, reinsert the rubber plug and seal the gap with a silicon sealant.
● Simplified Operation of Drain-up Mechanism
The following is the simplified operation procedure of the drain-up mechanism.
▫ Turn OFF the power supply.
▫ Disconnect the service connector (marked with green).
▫ Turn ON the power supply and start the simplified operation of the drain-up mechanism.
▫ Turn OFF the power supply.
▫ Reconnect the service connector.
NOTE:
Make sure to hold the connector part. Do not remove and plug in the connector frequently (more than two
or three times).
Turn off electrical power at the power supply when handling the service connector. An electrical
shock hazard exists.
6. Insulate the condensate pipe connection and the condensate hose after connecting them. If improperly
insulated, condensation will occur.
Insulation (3/16T x 1 x 19-11/16)
(Accessory)
Completely wrap up the transparent area
of the condensate pipe end connection.
7. Insulate the condensate piping with insulation wrap as it runs through the indoor unit.
20
NOTICE
Drain-up Mechanism
Service Connector
(Marked with Green)
Terminal
PCB
Blocks
Insulation (3/16T x 3-15/16 x 7-7/8)
(Accessory)
Wrap up the condensate hose completely
to cover the hose clamp.
Hose Clamp (Accessory)
Unit: inch
P5417054