Figure 45: Open outside air hoods
Figure 46: Open exhaust air hoods
Exhaust air hood
1. Remove the top hold-down bracket and two
bottom hold-down brackets.
2. Open the hood top, untie the cable tie, and
remove the two side hoods.
3. Position the hood top and side hoods in place
against the unit frame, and fasten them using
the shipped loose screws.
Filters
The rooftop unit can have many different
combinations of standard or optional filters selected
and factory installed. Both return air filters and final
filters can be selected. Return air filters are installed
in the return airstream before the evaporator coil.
Final filters are installed in the supply airstream
after the cooling and heating components.
Filters must be kept clean. Dirty filters reduce the
overall capacity of the unit and could result in
cooling or heating safety lockouts. The unit should
never be operated without air filters installed.
Always replace filters with the same MERV rating,
size, and quantity that were originally installed in
the factory.
Tempmaster
®
Omni™ Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide
84
Tempmaster
