Bryant 581A operation manual Install OUTDOOR-AIR Hood, Manual Damper Assembly

	LEGEND
EQUIP — Equipment
GND	— Ground
NEC	— National Electrical Code
TB	— Terminal Board

NOTE: The maximum wire size for TB1 is 2/0.

Fig. 15 — Field Power Wiring Connections

THERMOSTAT ASSEMBLY

	REMOVABLE JUMPER
	RH RC	Y1	Y2	W1	W2	G	L	X
							C
TB2-	R	Y1	Y2	W1	W2	G	C	X
J11	1	2	3	4	5	6	7	8
	Fig. 16 — Field Control Thermostat Wiring
Set heat anticipator settings as follows:
VOLTAGE			STAGE 1			STAGE 1 AND 2
			(W1) ON		(W1 AND W2) ON
	All		0.15				0.30

Settings may be changed slightly to provide a greater degree of comfort for a particular installation.

X. STEP 10 — INSTALL OUTDOOR-AIR HOOD

Perform the following procedure to install the outdoor-air hood on units equipped with an economizer, two-position damper, or manual outdoor air damper:

1.Remove blank panel from return end of unit (hood section). Save the screws. See Fig. 17 for shipping location of components.

2.Hood sides are fastened to sides of outdoor air open- ing. Remove the hood sides and save the screws (3 each side).

3.Remove the bracket holding the bottom half of the hood in the shipping position. Remove the hood bot- tom half and filters (or manual dampers on units so equipped) from outdoor section.

NOTE: On units without economizers, the compo- nents are attached to the unit basepan. To access the components, remove the panel below the outdoor air intake section.

4.Remove inner filter track from shipping position in outdoor section. Position inner filter track so the

track is facing outward from the unit. Install the fil- ter track with 4 screws provided.

5.Apply seal strip (provided) to back flange of both hood sides where hood side connects to the unit back panel. See Fig. 18.

6.Apply seal strip (provided) to top flange of both hood sides where hood sides connect to the hood top pan- els. See Fig. 18.

7.Install hood sides to the back panels using the screws from Step 2. The sloped flanges point outward. The drip edges of the side panels should face outward as well. Attach the filter guides to the hood sides. The flanges of the filter guides should face inward to hold the filters in place. See Fig. 18.

8.Apply seal strip along the entire length of the bottom flange of the hood top. See Fig. 18.

9.Install the bottom part of the hood top using 4 screws provided. See Fig. 18.

10.Remove the packaging from filters (3) and install into the filter tracks. Slide the filters to the sides then place the last filter into the center of the filter track.

NOTE: For units with manual dampers, replace the end filters with the manual dampers. Install the filter in the center between the manual dampers.

11.Install the filter retainer track along the bottom edge of the outdoor air hood using 4 screws provided. See Fig. 18.

12. Install top section of the outdoor air hood using 9 screws provided. See Fig. 18. See Fig. 19 for a pic- ture of the assembled outdoor air hood.

NOTE: For filter removal, remove the four screws holding the filter retainer. The filters can then be removed, cleaned, or replaced. Install the filters by reversing the procedure.

A. Manual Damper Assembly

For units equipped with manual dampers, the assembly pro- cess is similar to the outdoor air hood for units with econo- mizers. There are two slide dampers shipped with the unit to allow for manual setting of the outside air volume. When assembling the hood, place one of the manual slide dampers in each of the end positions and the remaining filter in the center position. The manual dampers can then be moved to the appropriate position and then locked into place using the screws mounted in the adjustment slots. See Fig. 20.

	HOOD	HOOD TOP
HOOD TOP	SIDE	(BOTTOM HALF)
(TOP HALF)
HOOD
SIDE
RETURN AIR
SECTION

Fig. 17 — Outdoor-Air Hood Component

Shipping Location

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