Carrier 50HCQA Economizer Hood and Two-PositionHood, Economizer Filter Installation

Economizer Hood and Two-Position Hood —

NOTE: 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.

1.The indoor coil access panel will be used as the top of the hood. Remove the screws along the sides and bot- tom of the indoor coil access panel. See Fig. 10.

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. 12.

DIVIDER

OUTSIDE

50HCQA

CAULK

HERE

INDOOR

COIL

ACCESS

PANEL

SIDE

PANEL

TOP

SIDE

PANEL

INDOOR

COIL

ACCESS

PANEL

C06025

AIR

HOOD

CLEANABLE

ALUMINUM FILTER FILTER

BAROMETRIC RELIEF

FILTER CLIP

C08634

Fig. 12 - Economizer Filter Installation

6.Caulk the ends of the joint between the unit top panel and the hood top.

7.Replace the filter access panel.

Fig. 10 - Indoor Coil Access Panel Relocation

2.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. 11.

Step 9 — Install External Condensate Trap and Line

The unit has one 3/4-in. condensate drain connection on the end of the condensate pan and an alternate connection on the bottom. See Fig. 13. Unit airflow configuration does not determine which drain connection to use. Either drain connection can be used with vertical or horizontal applications.

LEFT
HOOD
SIDE	19 1/16”B
	(483mm)

TOP

PANEL

INDOOR COIL

ACCESS PANEL

SCREW

33 3/8”

(848mm)

HOOD DIVIDER

C06026

When using the standard side drain connection, ensure the red plug in the alternate bottom connection is tight. Do this before setting the unit in place. The red drain pan can be tightened with a 1/2-in. square socket drive extension.

To use the alternate bottom drain connection, remove the red drain plug from the bottom connection (use a 1/2-in. square socket drive extension) and install it in the side drain connection.

Fig. 11 - Economizer Hood Construction

3.Remove the shipping tape holding the economizer ba- rometric relief damper in place.

4.Insert the hood divider between the hood sides. See Fig. 11 and 12. 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.

5.Open the filter clips which are located underneath the hood top. Insert the aluminum filter into the bottom

CONDENSATE PAN (SIDE VIEW)		ALTERNATE
STANDARD	DRAIN PLUG
		BOTTOM DRAIN
SIDE DRAIN
	(FACTORY-INSTALLED)

C08021

Fig. 13 - Condensate Drain Pan (Side View)

The piping for the condensate drain and external trap can be completed after the unit is in place. See Fig. 14.

10