The rear drain can be used with wall thickness of up to 10 inches where a water trap can be installed between the unit and the interior wall. See Figure 8B. The trap cannot extend beyond the edge of the unit or it will interfere with the wall mounting bracket. The drain can be routed through the floor or through the wall. If the drain is routed through the wall, the drain line must be positioned such that it will not interfere with the sleeve flange or the grille. See Figure 9C on Page 10. If the drain is to be routed through an unconditioned space, it must be protected from freezing.
MIST ELIMINATOR SERVICE (Optional – only used with one of the vent options)
A mist eliminator is supplied with the wall sleeve. The mist eliminator is constructed of aluminum frame and mesh. The mist eliminator is located in the top section of the wall sleeve and can be removed from the inside of the building without removing the unit from the wall. This requires that the ventilation package must be removed.
The steps necessary to remove each of the vent options are listed following.
It is recommended that the mist eliminator be inspected annually and serviced as required. The mist eliminator can be inspected from the outside of the building by looking through the outdoor grille. The mist eliminator can be serviced from the outside. The outdoor grille must be removed to do so.
The mist eliminator can be cleaned by washing with soap and water. The excess water should be shaken off the mist eliminator before it is reinstalled.
BAROMETRIC FRESH AIR DAMPER (Optional)
Before start to remove make sure the power has been turned off. The hinged return air grille panel must be opened. The fresh air damper assembly can be seen on the back of the unit. Refer to Figure 10.
1.The fresh air damper is attached to the back of the unit with one screw on either side of the assembly. Both of the screws must be removed.
2.Once the mounting screws are removed, tilt the assembly down and lift it out.
The mist eliminator can be seen through the opening. The mist eliminator must be raised up and the bottom can be pulled toward the front of the unit.
COMMERCIAL ROOM VENTILATOR OPTION
Before stating the removal make sure the power has been turned off. The hinged return air grille must be opened. The commercial room ventilator (CRV) can be seen after the panel has been removed. The CRV must be removed to gain access to the mist eliminator.
1.The two mounting screws in the front of the CRV must be removed.
2.The power connectors for the CRV (located on the right side of the unit) must be disconnected. Squeeze the tabs on the sides of the connector and pull straight out. Unplug both of the connectors.
3.Slide the CRV straight out of the unit.
The mist eliminator can be seen through the opening in the back of the unit. The mist eliminator must be raised up and the bottom can be pulled toward the front of the unit and removed.
Manual
