12
Step 8 — Install Outside Air Hood
ECONOMIZER HOOD REMOVAL AND SETUP (FAC
-
TORY OPTION)
The hood is shipped in knock-down form and located in the re
-
turn air compartment. It is attached to the economizer using
two plastic tie-wraps.
1. To gain access to the hood, remove the filter access panel.
(See Fig. 13.)
2. Locate and cut the (2) plastic tie-wraps, being careful not
to damage any wiring. (See Fig. 14.)
3. Carefully lift the hood assembly through the filter access
opening and assemble per the steps outlined in Econo
mizer and Two-Position Hood Assembly on page 12.
Fig. 13 — Typical Access Panel Locations
Fig. 14 — Economizer Wiring
TWO-POSITION DAMPER HOOD REMOVAL AND
SETUP (FACTORY OPTION)
The hood is shipped in knock-down form and assembled to a
metal support tray using plastic stretch wrap. Located in the re
-
turn air compartment, the assembly’s metal tray is attached to
the basepan and also attached to the damper using two plastic
tie-wraps.
1. To gain access to the hood, remove the filter access panel.
(See Fig. 13.)
2. Locate the (2) screws holding the metal tray to the basepan
and remove. In order to remove the screws, it may be nec
-
essary to remove the panel underneath the two-position
damper. Locate and cut the (2) plastic tie-wraps securing
the assembly to the damper. (See Fig. 15.) Be careful not
to damage any wiring or cut tie-wraps securing any
wiring.
3. Carefully lift the hood assembly (with metal tray) through
the filter access opening and assemble per the steps out
-
lined in Economizer and Two-Position Hood Assembly on
4. If removed, reattach the panel under the damper.
Fig. 15 — Damper Assembly
ECONOMIZER AND TWO-POSITION HOOD ASSEMBLY
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 bottom of
the indoor coil access panel. See Fig. 16.
Fig. 16 — Indoor Coil Access Panel Relocation
FILTER ACCESS PANEL
INDOOR COIL ACCESS PANEL
ECONOMIZER
CUT PLASTIC TIES
(2) PLACES
REMOVE
HOOD PARTS
HOOD PARTS
PLASTIC TIE WRAP
QTY (2)
SCREWS FOR METAL TRAY
QTY (2)
TOP
PANEL
INDOOR
COIL
ACCESS
PANEL
INDOOR
COIL
ACCESS
PANEL
CAULK
HERE
TOP
PANEL
RAIN DEFLECTORS
Содержание Legacy 549J 12 Series
Страница 4: ...4 Fig 2 Unit Dimensional Drawing Size 12 Units...
Страница 5: ...5 Fig 2 Unit Dimensional Drawing Size 12 Units cont...
Страница 9: ...9 Fig 6 Roof Curb Details REV 50TM500827...
Страница 24: ...24 Fig 42 Typical 549J Control Wiring Diagram...
Страница 25: ...25 Fig 43 Typical 549J Power Wiring Diagram 208 230 3 60 unit shown...
Страница 26: ...26 Fig 44 RTU Open Controller System Wiring Diagram...
