Installation, Operation & Maintenance Manual - PS-121B / PSH-141A
13
Operation
• During heat pump mode, remove the lower drain plug
from the back of the unit, install the drain connector
(5/8" universal female hose connection) with 3/4" hose
(locally purchased). For the models without a drain
connector, attach the drain hose to the hole. Place the
open end of the Hose adapter directly over the drain
area in your basement floor.
NOTE: Make sure the hose is secure so there are no
leaks. Direct the hose toward the drain, making sure
that there are no kinks that will stop the water flowing.
Place the end of the hose into the drain and make sure
the end of the hose is down to let the water flow
smoothly.
• When the water level of the bottom tray reaches a
predetermined level, the unit beeps 8 times, the
digital display area shows "P1". At this time the air
conditioning/dehumidification process will immediately
stop. However, the fan motor will continue to operate
(this is normal). Carefully move the unit to a drain
location, remove the bottom drain plug and let the
water drain away. Reinstall the bottom drain plug and
restart the machine until the "P1" symbol disappears. If
the error repeats, call for service.
NOTE: Be sure to reinstall the bottom drain plug firmly
to prevent leakage before using the unit.
When the continuous drain hose is not used, ensure
that the corresponding drain plug and knob are
installed firmly to prevent leakage.
√
drain hose
adaptor
Continuous
drain hose
Remove the
lower drain plug
(See Figs with
√
. Do not allow traps or rise. (See Figs with ).
X
√
delivery lift <1.8m
drain hose
adaptor
drain hose
adaptor
X
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