CAUTION: The conversion of the fan coil to downflow requires special procedures for the condensate drains on both
A-coil and Slope units. The vertical drains have an overflow hole between the primary and secondary drain holes. This hole
is plugged for all applications except downflow, but must be used for downflow. During the conversion process, remove the
plastic cap covering the vertical drains only and discard. Remove the plug from the overflow hole and discard. At completion
of the downflow installation, caulk around the vertical pan fitting to door joint to retain the low air leak performance of the
unit. Failur to follow this CAUTION could result in minor personal injury or product and property damage.
Units are equipped with primary and secondary 3/4-in. FPT drain connections. For proper condensate line installations see Fig. 1, 2, 4, 5, and 6.
To prevent property damage and achieve optimum drainage performance, BOTH primary and secondary drain lines should be installed and include
properly-sized condensate traps (See Fig. 18). Factory-approved condensate traps are available. It is recommended that PVC fittings be used on
the plastic condensate pan. Finger-tighten plus 1-1/2 turns. Do not over-tighten. Use pipe dope.
CAUTION: Shallow, running traps are inadequate and DO NOT allow proper condensate drainage. (See Fig. 19.)
Failure to follow this CAUTION could result in minor personal injury or product and property damage.
NOTE:
When connecting condensate drain lines, avoid blocking filter access panel, thus preventing filter removal. After connection, prime both
primary and secondary condensate traps.
Fig. 15—Transformer Connections
A94067
230
C
208
BRN
RED
YEL
BLK
SECONDARY
PRIMARY
Fig. 16—Fan Coil Relay and Speed Tap Terminal
A97529
INSULATING CAP (2)
MOTOR SPEED
TAP LEADS
COMMON YELLOW
FAN DECK
WRAPPER
SPEED TAP
TERMINAL
PCB
FAN RELAY
SINGLE SPADE
—11—