Carrier SINGLE PACKAGE ROOFTOP UNITS 48PG20-28 - Manual (Page 42)

42
CONTROL
CURVE
A
B
C
D
CONTROL POINT
APPROX. °F (°C)
AT 50% RH
73 (23)
70 (21)
67 (19)
63 (17)
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
9
0 1
0
0
80
70
60
50
40
30
20
10
ENT
HA
LP
Y—
BTU
P
ER
PO
UN
D DR
Y A
IR
85
(29)
90
(32)
95
(35)
100
(38)
105
(41)
110
(43)
35
(2)
35
(2)
40
(4)
40
(4)
105
(41)
110
(43)
45
(7)
45
(7)
50
(10)
50
(10)
55
(13)
55
(13)
60
(16)
60
(16)
65
(18)
65
(18)
70
(21)
70
(21)
75
(24)
75
(24)
80
(27)
80
(27)
85
(29)
90
(32)
95
(35)
100
(38)
APPROXIMATE DRY BULB TEMPERATURE— °F (°C)
A
A
B
B
C
C
D
D
RELA
TIVE HUM
IDITY
(
%
)
HIGH LIMIT
CURVE
0
1000
2000
3000
4000
5000
6000
2 3 4 5 6 7 8
800 ppm
900 ppm
1000 ppm
1100 ppm
RANGE
CONFIGURA
TION
(ppm)
DAMPER VOLTAGE FOR MAX VENTILATION RATE
CO SENSOR MAX RANGE SETTING 2
Fig. 27 — Enthalpy Changeover Set Points
Fig. 28 — EconoMi$er IV Controller Potentiometer
and LED Locations
Fig. 29 — CO
2
Sensor Maximum Range Setting