Step 10 - Make Outdoor-Air Inlet Adjustments; Step 11 - Install Outdoor-Air Hood - Bryant DURAPAC 579F Installation, Start-Up And Service Instructions Manual

7. Turn the handle to the OFF position and close the
door. The handle should fit over the end of the shaft
when the door is closed.
8. The handle must be in the OFF position to open the
control box door.
D. Optional Convenience Outlet
On units with optional convenience outlet, a 115-v GFI
(ground fault interrupt) convenience outlet receptacle is
provided for field wiring. Field wiring should be run through
the 7 / -in. knockout provided in the basepan near the return
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air opening.
LEGEND
EQUIP — Equipment
GND — Ground
NEC — National Electrical Code
TB — Terminal Block
NOTE: The maximum wire size for TB1 is 2/0.
Fig. 14 — Field Power Wiring Connections
THERMOSTAT ASSEMBLY
REMOVABLE JUMPER
RC Y1 Y2
RH
R
Y1 Y2
Fig. 15 — Field Control Thermostat Wiring
NOTE: The disconnect takes the place of TB-1 as shown on the unit
wiring diagram label and the component arrangement label.
Fig. 16 — Optional Non-Fused Disconnect Wiring
L
W1
G C X
W2
W2 C X
W1 G
6T3 4T2 2T1 LOAD
5L3 3L2 1L1 LINE
X. STEP 10 — MAKE OUTDOOR-AIR INLET ADJUSTMENTS
A. Manual Outdoor-Air Damper
All units (except those equipped with a factory-installed
economizer) have a manual outdoor-air damper to provide
ventilation air.
Damper can be preset to admit up to 25% outdoor air into
return-air compartment. To adjust, loosen securing screws
and move damper to desired setting, then retighten screws
to secure damper (Fig. 17).
XI. STEP 11 — INSTALL OUTDOOR-AIR HOOD
The outdoor-air hood is common to 25% air ventilation and
EconoMi$erIV. If EconoMi$erIV is used, all electrical connec-
tions have been made and adjusted at the factory. Assemble
and install hood in the field.
IMPORTANT: If the unit is equipped with the optional
EconoMi$erIV component, move the outdoor-air tempera-
ture sensor prior to installing the outdoor-air hood. See the
Optional EconoMi$erIV section for more information.
NOTE: The hood top panel, upper and lower filter retainers,
hood drain pan, baffle (size 300), and filter support bracket
are secured opposite the condenser end of the unit. The
screens, hood side panels, remaining section of filter support
bracket, seal strip, and hardware are in a package located
inside the return-air filter access panel (Fig. 18).
1. Attach seal strip to upper filter retainer. See Fig. 19.
2. Assemble hood top panel, side panels, upper filter
retainer, and drain pan (see Fig. 20).
3. Secure lower filter retainer and support bracket to
unit. See Fig. 20. Leave screws loose on size 300
units.
4. Slide baffle (size 300) behind lower filter retainer and
tighten screws.
5. Loosen sheet metal screws for top panel of base unit
located above outdoor-air inlet opening, and remove
screws for hood side panels located on the sides of the
outdoor-air inlet opening.
6. Match notches in hood top panel to unit top panel
screws. Insert hood flange between top panel flange
and unit. Tighten screws.
7. Hold hood side panel flanges flat against unit, and
install screws removed in Step 5.
8. Insert outdoor-air inlet screens and spacer in channel
created by lower filter retainer and filter support
bracket.
Fig. 17 — Standard 25% Outdoor-Air Section Details
— —
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