Carrier 50TFF008-014, Installation, Start-Up And Service Instructions Manual

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9. Remove tape from outdoor-air thermostat (OAT). Fasten
OAT to inside of hood using screws and speed clips pro-
vided. See Fig. 26. Make sure OAT terminals are posi-
tioned up.
10. Replace outdoor-air opening panel using screws from
Step 2. Replace filter access panel. Ensure the filter ac-
cess panel slides along the tracks and is securely engaged.
11. Fasten hood top and side plate assembly to outdoor-air
opening panel with screws provided.
12. Place knob supplied with economizer on OAT. See
Fig. 26. Set for 3° F below indoor room thermostat set-
ting. If accessory enthalpy control (EC) is used in place of
OAT, see instructions shipped with EC for installation
and adjustment. See Fig. 26.
13. Connect OAT per Fig. 27.
14. Slide outdoor-air inlet screen into screen track on hood
side plate. While holding screen in place, fasten screen re-
tainer to hood using screws provided.
NOTE: Refer to Fig. 28 for Durablade economizer barometric
relief damper characteristics.
SCREW
HOLES
(TOP)
HOOD
HOOD
SCREEN
LOCATION
(SCREEN
NOT
SHOWN)
OUTDOOR
AIR
OPENING
PANEL
BLOCK-OFF
PANEL
FILTER
ACCESS
PANEL
Fig. 16 — Damper with Hood Attached
Fig. 17 — Position Setting
Fig. 18 — Access Panel Location
Fig. 19 — Outdoor-Air Hood Details
Fig. 20 — Vertical Discharge Block-Off Plate
(Sizes 012, 014 only)