Carrier 50TFF008-014 - Economiser Assembly; Wiring Connections for Outdoor-Air Thermostat; Optional Economi$Er

15
OPTIONAL ECONOMI$ER — See Fig. 29 for EconoMi$er
component locations.
1. To remove the existing filter access panel, raise the panel
and swing the bottom outward. The panel is now disen-
gaged from the track and can be removed. Remove the
indoor coil access panel and discard. See Fig. 30.
NOTE: If installing an optional Power Exhaust Assembly,
refer to the EconoMi$er Power Exhaust Installation Instruc-
tions, then proceed to Step 6.
NOTE: The controller should be mounted in vertical position
as shown in Fig. 29.
2. To assemble the hood assembly: Remove the
EconoMi$er hood from its packaging. Locate the outdoor
air opening panel. See Fig. 31. Remove hood assembly
shipping brackets located on back (sloped) side of
EconoMi$er assembly. These brackets are used to retain
hood assembly during shipping only.
MINIMUM
POSITION
OPEN
3
1
T
P
P1
T1
4
2
5
S
S
O
D
C
TR
B
REV. B
198818A
%
H
U
M
I
D
I
T
Y
90
70
60
30
10
D
C
B
A
60
65
70
75
55
50
85
80
DAMPER
DAMPER
CLOSED
OPEN
OUTDOOR TEMP
.
°
F
REV
.
97-3672
CW–SETPOINTS–CCW
CONT
A
CTS SHO
WN IN HIGH ENTHALPY
RUSH
AT 24V
AC
3 mA
MIN. A
T 1
1 VDC
CONT
ACT RA
TINGS: 1.5A
RUN, 3.5A IN
OR UNPOWERED ST
A
TE
1
2
3
TR
TR1
24V
AC
ENTHALPY CONTROL
ENTHALPY
CONTROL
HOOD
UNIT
TOP
OAT
(TERMINALS ARE UP)
OUTSIDE AIR
SCREEN
Fig. 26 — Outdoor-Air Thermostat/
Enthalpy Control Installation
Fig. 27 — Wiring Connections for
Outdoor-Air Thermostat
Fig. 28 — Durablade Economizer Barometric Relief
Damper Characteristics
CONTROLLER
BAROMETRIC
RELIEF DAMPERS
OUTDOOR AIR
TEMPERATURE
SENSOR
GEAR-DRIVEN
DAMPER
ACTUATOR
ECONOMI$ER
PLUG
Fig. 29 — EconoMi$er Assembly