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JOHNSON CONTROLS
8
FORM 115.20-NOM6 (1106)
Drain Piping
Condensate drain lines must be installed with adequate
slope away from the unit to assure positive drainage.
Since the drain pan is located on the suction side of
the blower, a negative pressure exists at the drain pan
and a minimum trap of 1-1/2" must be provided in the
drain line to assure proper drainage.
Drain connections, primary and secondary, are 3/4"
MPT (see Fig. 5 for details).
On units with plastic drain pans the
drain connections must be made hand
tight only.
INSTALLATION
FIG. 5 – CWE SERIES WALL / CLOSET FAN COILS
Chilled Water with Electric Heat
CONDENSATE DRAIN CONNECTIONS
(With drain cover removed)
(Thermoplastic pan shown)
LD12278