Carrier 48HJD005-007 - Manual (Page 14)

14
U-SHAPED
HOLE
(NOT SHOWN)
ECONOMIZER
PLUG
WIRING
HARNESS
4
3
2
1
0
5
6
7
8
9
UNIT
TOP
OAT
(TERMINALS ARE UP)
OUTSIDE AIR
SCREEN
MINIMUM POSITION
OPEN
3 1
T P
P1 T1 4 2 5
S S
O
D
C TR
B
RE
V . B
1 9 8 8 1 8 A
% H U M I D I T Y 90 70 60 30 10 D
C
B
A
60
65
70
7 5
55
50
85
8 0
D AMPER
D AMPER CLOSED
OPEN OUTDOOR TEMP
.
°
F
REV. 97-36 72
CW
– SETPOINTS
– CCW
CONT
A
CTS SHO
WN IN HIGH ENTHALPY
R U S H
A
T 2
4
V A C
3 m
A M
IN.
A
T 1
1 VDC
CONT
A
CT RA
TINGS:
1.5A
R
UN,
3.5A
IN
OR UNPO
WERED ST
A
TE
1
2
3
TR
TR1
24V
A
C
ENTHALPY
CONTR
OL
ENTHALPY
CONTROL
HOOD
Fig. 18 — Typical Durablade Economizer and
Wiring Harness
Example:
Given —
Negative Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . .0.1 in. wg
Outdoor Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100 cfm
Determine —
Setting = 6
Fig. 19A — Durablade Economizer Damper
Minimum Position Setting
Fig. 19B — Durablade Economizer Minimum
Position Damper Setting
Fig. 21 — Wiring Connections for
Outdoor-Air Thermostat
Fig. 20 — Outdoor-Air Thermostat/
Enthalpy Control Installation