551B,C
Fig. 19 ---
Fig. 20
WIRING HARNESS
ACTUATOR
Fig. 21
C06131
Outdoor-Air Damper With Hood Attached
C06132
---Outdoor-Air Damper Position Setting
ECONOMI$ER IV
CONTROLLER
OUTSIDE AIR
TEMPERATURE SENSOR
LOW AMBIENT
SENSOR
C06021
---EconoMi$er IV Component Locations
Optional EconoMi$er IV
See Fig. 21 for EconoMi$er IV component locations.
NOTE: These instructions are for installing the optional EconoMi$er IV only. Refer to the accessory EconoMi$er IV installation instructions when field installing an EconoMi$er IV accessory.
1.To remove the existing unit filter access panel, raise the panel and swing the bottom outward. The panel is now disengaged from the track and can be removed. (See Fig. 22.)
2.The box with the economizer hood components is shipped in the compartment behind the economizer. The EconoMi$er IV controller is mounted on top of the EconoMi$er IV. To remove the component box from its shipping position, remove the screw holding the hood box bracket to the top of the economizer. Slide the hood box out of the unit. (See Fig. 23.)
IMPORTANT: If the power exhaust accessory is to be installed on the unit, the hood shipped with the unit will not be used and must be discarded. Save the aluminum filter for use in the power exhaust hood assembly.
3.The indoor coil access panel will be used as the top of the hood. Remove the screws along the sides and bottom of the indoor coil access panel. (See Fig. 24.)
4.Swing out indoor coil access panel and insert the hood sides under the panel (hood top). Use the screws provided to attach the hood sides to the hood top. Use screws provided to attach the hood sides to the unit. (See Fig. 25.)
5.Remove the shipping tape holding the economizer barometric relief damper in place.
6.Insert the hood divider between the hood sides. (See Fig. 25 and 26.) Secure hood divider with 2 screws on each hood side. The hood divider is also used as the bottom filter rack for the aluminum filter.
7.Open the filter clips which are located underneath the hood top. Insert the aluminum filter into the bottom filter rack (hood divider). Push the filter into position past the open filter clips. Close the filter clips to lock the filter into place. (See Fig. 26.)
8.Caulk the ends of the joint between the unit top panel and the hood top. (See Fig. 24.)
9.Replace the filter access panel.
10.Install all EconoMi$er IV accessories. EconoMi$er IV wiring is shown in Fig. 27.
Barometric flow capacity is shown in Fig. 28. Outdoor air leakage is shown in Fig. 29. Return air pressure drop is shown in Fig. 30.
FILTER ACCESS PANEL
COMPRESSOR
ACCESS PANEL
INDOOR COIL ACCESS PANEL
C06023
Fig. 22 --- Typical Access Panel Locations
24
