Titus Vertical Basic IOM - Manual (Page 2)

Page 2 of 6
3.5 All pipes and fittings that extend beyond the drain pan MUST be insulated.
3.6
The inlet and outlet points are clearly marked on the unit’s piping. Depending upon
the field piping layout, the connecting inlet, outlet and condensate piping could be
routed from the back of the unit or from the bottom.
4.
OUTSIDE AIR DAMPER (OPTIONAL) – VBC, VBF, VBA ONLY
4.1 Outside Air Duct Connection
The unit is provided with an outside air intake opening at the back which leads to the
built-in outside air damper. The installing contractor should build a duct to match the
size of the opening. This duct should be connected via a duct collar to the unit, on one
side, and to an outside weather louver on the outside wall. This installation does not
form part of the unit supply.
4.2
Damper Setting
The factory setting is for the damper to fully open when energized. However, should a
smaller quantity of outside air be required, the degree of opening of the damper blade
can be adjusted as follows:
4.2.1
Remove the front panel of the unit and remove the filter.
4.2.2
Open the Wing-nuts securing the outside air damper assembly and slide it out to gain
the better access.
4.2.3
Energize the motor until damper is in the fully open position.
4.2.4
While in the fully open position, loosen the set screw holding the damper shaft to
the damper motor.
4.2.5
Adjust the position of the blade to the desired angle and tighten the set screw.
4.2.6
Reassemble the unit.