Specifications
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WM&FD 021014
INSTALLING THE FULLY DUCTED EVAPORATOR (FAN COIL UNIT)
1. If mounting the unit to a wall see steps 1-8 of the instruction for installing the Wall Mounted Evaporator
Unit.
2. Using 1/4” and 1/2” copper tubing, route the liquid and suction lines through the knockouts in the
wrapper. Be sure to extend the tubing far enough outside of the wrapper to extend through the wall
if necessary. Note: ½” copper tubing will slip over the 3/8” suction line on the evaporator for an easy
connection.
3. Remove the solenoid coil and wrap the solenoid valve with a wet rag to prevent overheating.
4. To prevent oxidation, purge nitrogen through the system.
5. Braze the copper tubing to the connections on the evaporator unit.
6. Insulate the suction line using Armaex or similar insulation.
7. Cut a short piece of ½” drain line and connect a ½” barb 90 to the drain line.
8. Route the drain line out of the wrapper through the hole for the drain line. Use the second barb 90 if
going through the bottom of the wrapper. Be sure to extend the tubing far enough outside the wrapper
to extend through the wall if necessary.
9. Using the cable ties and cable tie mounts provided, secure the drain line to the bottom of the wrapper to
ensure a downward slope.
10. If you have purchased the Active Humidity Option, route the ¼” water line out of
the evaporator unit with the line set .
11. Route the power supply wires and the circular connector from the 50’ air sensing
probe into the unit through the knockout for the electrical.
12. Remove the wire nuts from the black, white and green wires located in the lower
left corner of the evaporator unit.
13. Following the supplied wiring diagram, connect the power supply wires to the
black, white and green wires using the supplied wire nuts
Power
3/8” Suction
1/4” Liquid
Drain