10
3 ft. (1 m)
SUPPORT
STRAPS
MAIN DRAIN
(Sloped at 1/4” per foot AWAY from unit and should
be supported as needed to prevent sagging.)
INDIVIDUAL DRAIN OUTLET FROM EACH INDOOR UNIT
Condensate Piping Connections
CAUTION
!
Make sure that drain piping is properly routed
and insulated in order to prevent both leaks and
condensation.
1. Make a water-tight connection between the
fi
eld-
provided condensate drain line and the
fl
exible
condensate connector (5/8” I.D.).
2. Con
fi
rm proper slope (not less than 1/4 inch per foot)
and routing of condensate lines to ensure moisture is
drained away from the indoor unit.
3. Drain should be as short as possible and should not
have any droops or kinks that would restrict condensate
fl
ow and shall be approved resistant pipe. There must
be a 2-inch space between the end of the condensate
drain and the
fi
nal termination point (ground, open
drain, etc.) to ensure that the line will drain freely.
4. After the system installation is complete, the
condensate drain line must be checked for leaks and
proper drainage. If a
fi
eld-provided condensate pump
has been installed, it must be checked to ensure proper
operation. This check is part of the commissioning
sequence.
IMPORTANT!
Drain should have a slope of at least ¼ inch per foot
and should be approved corrosion-resistant pipe.
You must confi rm operation of every drain and pump
in the system as part of the commissioning proce-
dure.
DRAIN LINE
3 ft. (1 m)
SUPPORT
STRAPS
Slope at least
1/4” per foot
Figure 10. Single Indoor Unit Suspended from Ceiling
Using a Properly Sloped Gravity Drain
Figure 11. Condensate Drain Multiple Indoor Units Suspended from Ceiling Using a Single Properly Sloped
Gravity Drain
VCFA
VCFA
VCFA
VCFA
Using an External Water Level Switch
Disconnect the closed circuit loop, CN 5. Connect the
water level switch cable accessory to CN 5. See unit wiring
diagrams for location of CN 5.
The connection has 5 VDC current, do not supply
fi
eld
voltage.
